EP0882151A1 - Verfahren zur behandlung von chemischem zellstoff - Google Patents

Verfahren zur behandlung von chemischem zellstoff

Info

Publication number: EP0882151A1
Authority: EP; European Patent Office
Prior art keywords: bleaching; pulp; process according; acid; chelating
Prior art date: 1996-02-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP97903408A

Other languages

English (en)

French (fr)

Other versions

EP0882151B1 (de

Inventor

Ilkka Renvall

Reijo Aksela

Aarto Paren

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Kemira Oyj

Original Assignee

Kemira Chemicals Oy

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-02-19

Filing date

1997-02-19

Publication date

1998-12-09

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8545485&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0882151(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1997-02-19 Application filed by Kemira Chemicals Oy filed Critical Kemira Chemicals Oy

1998-12-09 Publication of EP0882151A1 publication Critical patent/EP0882151A1/de

2003-10-15 Application granted granted Critical

2003-10-15 Publication of EP0882151B1 publication Critical patent/EP0882151B1/de

2017-02-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 34
230000008569 process Effects 0.000 title claims abstract description 34
229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 12
238000011282 treatment Methods 0.000 title claims description 17
238000004061 bleaching Methods 0.000 claims abstract description 110
239000002738 chelating agent Substances 0.000 claims abstract description 41
239000000126 substance Substances 0.000 claims abstract description 21
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 19
239000001301 oxygen Substances 0.000 claims abstract description 19
229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
229910001385 heavy metal Inorganic materials 0.000 claims abstract description 18
229910052791 calcium Inorganic materials 0.000 claims abstract description 15
150000001875 compounds Chemical class 0.000 claims abstract description 12
229910052708 sodium Inorganic materials 0.000 claims abstract description 7
CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims abstract description 4
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 3
229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
229910052700 potassium Inorganic materials 0.000 claims abstract description 3
239000011734 sodium Substances 0.000 claims description 44
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 32
239000002253 acid Substances 0.000 claims description 25
150000002978 peroxides Chemical class 0.000 claims description 23
KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 18
239000011575 calcium Substances 0.000 claims description 16
229910052783 alkali metal Inorganic materials 0.000 claims description 14
239000000203 mixture Substances 0.000 claims description 13
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
-1 alkali metal salt Chemical class 0.000 claims description 11
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 8
150000004965 peroxy acids Chemical class 0.000 claims description 7
125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 7
PQHYOGIRXOKOEJ-UHFFFAOYSA-N 2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-UHFFFAOYSA-N 0.000 claims description 6
VKZRWSNIWNFCIQ-UHFFFAOYSA-N 2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid Chemical group OC(=O)CC(C(O)=O)NCCNC(C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-UHFFFAOYSA-N 0.000 claims description 6
229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
235000019341 magnesium sulphate Nutrition 0.000 claims description 6
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
239000003513 alkali Substances 0.000 claims description 5
239000000460 chlorine Substances 0.000 claims description 5
229910052801 chlorine Inorganic materials 0.000 claims description 5
229910052723 transition metal Inorganic materials 0.000 claims description 5
150000003624 transition metals Chemical class 0.000 claims description 5
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
238000009897 hydrogen peroxide bleaching Methods 0.000 claims description 4
159000000003 magnesium salts Chemical class 0.000 claims description 4
CNJLMVZFWLNOEP-UHFFFAOYSA-N 4,7,7-trimethylbicyclo[4.1.0]heptan-5-one Chemical compound O=C1C(C)CCC2C(C)(C)C12 CNJLMVZFWLNOEP-UHFFFAOYSA-N 0.000 claims description 3
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
102000004190 Enzymes Human genes 0.000 claims description 2
108090000790 Enzymes Proteins 0.000 claims description 2
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
150000004697 chelate complex Chemical class 0.000 claims 1
229910001882 dioxygen Inorganic materials 0.000 claims 1
229910052749 magnesium Inorganic materials 0.000 abstract description 9
230000000694 effects Effects 0.000 abstract description 8
230000002411 adverse Effects 0.000 abstract description 3
125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 abstract description 2
235000019256 formaldehyde Nutrition 0.000 abstract 1
238000002474 experimental method Methods 0.000 description 44
VKZRWSNIWNFCIQ-WDSKDSINSA-N (2s)-2-[2-[[(1s)-1,2-dicarboxyethyl]amino]ethylamino]butanedioic acid Chemical group OC(=O)C[C@@H](C(O)=O)NCCN[C@H](C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-WDSKDSINSA-N 0.000 description 43
QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 34
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 27
239000011572 manganese Substances 0.000 description 23
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 17
229910052748 manganese Inorganic materials 0.000 description 17
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
239000011122 softwood Substances 0.000 description 13
229910052742 iron Inorganic materials 0.000 description 12
239000011777 magnesium Substances 0.000 description 12
238000005406 washing Methods 0.000 description 11
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 10
229910052751 metal Inorganic materials 0.000 description 10
239000002184 metal Substances 0.000 description 10
KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 9
KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 9
229960001484 edetic acid Drugs 0.000 description 9
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
150000003839 salts Chemical class 0.000 description 8
239000000243 solution Substances 0.000 description 8
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
239000003599 detergent Substances 0.000 description 7
229910052757 nitrogen Inorganic materials 0.000 description 7
239000013522 chelant Substances 0.000 description 6
150000002739 metals Chemical class 0.000 description 5
RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 4
BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
238000010411 cooking Methods 0.000 description 4
230000001627 detrimental effect Effects 0.000 description 4
239000000706 filtrate Substances 0.000 description 4
229940050410 gluconate Drugs 0.000 description 4
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
159000000000 sodium salts Chemical class 0.000 description 4
239000003381 stabilizer Substances 0.000 description 4
238000012360 testing method Methods 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
239000012670 alkaline solution Substances 0.000 description 3
239000007864 aqueous solution Substances 0.000 description 3
239000007844 bleaching agent Substances 0.000 description 3
150000001735 carboxylic acids Chemical class 0.000 description 3
229910001425 magnesium ion Inorganic materials 0.000 description 3
239000011541 reaction mixture Substances 0.000 description 3
239000013558 reference substance Substances 0.000 description 3
UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 3
239000003643 water by type Substances 0.000 description 3
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical class OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
230000009471 action Effects 0.000 description 2
WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
229910001424 calcium ion Inorganic materials 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
239000008139 complexing agent Substances 0.000 description 2
239000010949 copper Substances 0.000 description 2
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
235000019253 formic acid Nutrition 0.000 description 2
229940093915 gynecological organic acid Drugs 0.000 description 2
150000001261 hydroxy acids Chemical class 0.000 description 2
239000002655 kraft paper Substances 0.000 description 2
JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
125000000896 monocarboxylic acid group Chemical group 0.000 description 2
150000007524 organic acids Chemical class 0.000 description 2
235000005985 organic acids Nutrition 0.000 description 2
WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
159000000001 potassium salts Chemical class 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000002994 raw material Substances 0.000 description 2
230000006641 stabilisation Effects 0.000 description 2
238000011105 stabilization Methods 0.000 description 2
KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical class OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 description 1
GQDZSHLUALXACI-ZBHICJROSA-N 2-[[(3s)-3-amino-3-carboxypropanoyl]-(2-hydroxyethyl)amino]butanedioic acid Chemical compound OC(=O)[C@@H](N)CC(=O)N(CCO)C(CC(O)=O)C(O)=O GQDZSHLUALXACI-ZBHICJROSA-N 0.000 description 1
BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
239000004155 Chlorine dioxide Substances 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Chemical class OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
235000014676 Phragmites communis Nutrition 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
238000010306 acid treatment Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
239000001361 adipic acid Substances 0.000 description 1
235000011037 adipic acid Nutrition 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
150000004056 anthraquinones Chemical class 0.000 description 1
235000010323 ascorbic acid Nutrition 0.000 description 1
229960005070 ascorbic acid Drugs 0.000 description 1
239000011668 ascorbic acid Substances 0.000 description 1
239000012752 auxiliary agent Substances 0.000 description 1
230000008901 benefit Effects 0.000 description 1
239000011230 binding agent Substances 0.000 description 1
238000009835 boiling Methods 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
150000001805 chlorine compounds Chemical class 0.000 description 1
235000019398 chlorine dioxide Nutrition 0.000 description 1
239000011651 chromium Substances 0.000 description 1
229910001430 chromium ion Inorganic materials 0.000 description 1
235000015165 citric acid Nutrition 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
239000000835 fiber Substances 0.000 description 1
239000000174 gluconic acid Chemical class 0.000 description 1
235000012208 gluconic acid Nutrition 0.000 description 1
235000013922 glutamic acid Nutrition 0.000 description 1
239000004220 glutamic acid Substances 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000011221 initial treatment Methods 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
230000009916 joint effect Effects 0.000 description 1
239000004310 lactic acid Substances 0.000 description 1
235000014655 lactic acid Nutrition 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
239000011707 mineral Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
229960003330 pentetic acid Drugs 0.000 description 1
239000005077 polysulfide Substances 0.000 description 1
229920001021 polysulfide Polymers 0.000 description 1
150000008117 polysulfides Polymers 0.000 description 1
OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
229910052939 potassium sulfate Inorganic materials 0.000 description 1
235000011151 potassium sulphates Nutrition 0.000 description 1
WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
238000004076 pulp bleaching Methods 0.000 description 1
238000004537 pulping Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
239000003352 sequestering agent Substances 0.000 description 1
239000001509 sodium citrate Substances 0.000 description 1
NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
239000000176 sodium gluconate Substances 0.000 description 1
235000012207 sodium gluconate Nutrition 0.000 description 1
229940005574 sodium gluconate Drugs 0.000 description 1
239000002904 solvent Substances 0.000 description 1
239000010902 straw Substances 0.000 description 1
239000001384 succinic acid Substances 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000004094 surface-active agent Substances 0.000 description 1
239000011975 tartaric acid Substances 0.000 description 1
235000002906 tartaric acid Nutrition 0.000 description 1
235000013311 vegetables Nutrition 0.000 description 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Treatment Of Fiber Materials (AREA)
Chemical And Physical Treatments For Wood And The Like (AREA)
Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

EP97903408A 1996-02-19 1997-02-19 Verfahren zur behandlung von chemischem zellstoff Expired - Lifetime EP0882151B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
FI960756		1996-02-19
FI960756A FI115469B (fi)	1996-02-19	1996-02-19	Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi
PCT/FI1997/000106 WO1997030208A1 (en)	1996-02-19	1997-02-19	Process for the treatment of chemical pulp

Publications (2)

Publication Number	Publication Date
EP0882151A1 true EP0882151A1 (de)	1998-12-09
EP0882151B1 EP0882151B1 (de)	2003-10-15

Family

ID=8545485

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97903408A Expired - Lifetime EP0882151B1 (de)	1996-02-19	1997-02-19	Verfahren zur behandlung von chemischem zellstoff

Country Status (6)

Country	Link
EP (1)	EP0882151B1 (de)
AT (1)	ATE252176T1 (de)
AU (1)	AU1797397A (de)
DE (1)	DE69725558T2 (de)
FI (1)	FI115469B (de)
WO (1)	WO1997030208A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US9745700B2 (en)	2008-06-20	2017-08-29	International Paper Company	Composition and recording sheet with improved optical properties

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19630278A1 (de) *	1996-07-26	1998-01-29	Basf Ag	Komplexbildner für die Zellstoff- und Holzstoffbleiche, die Papierherstellung sowie das Deinking von Altpapier
EP1036237A1 (de) *	1997-11-25	2000-09-20	Amylum Europe N.V.	Bleichverfahren für chemische pulpe und für pulpendispersionen in form eines zwischenproduktes
KR100260833B1 (ko) *	1997-12-27	2000-07-01	차동천	고수율기계펄프의 제조방법
FI106258B (fi)	1998-03-09	2000-12-29	Kemira Chemicals Oy	Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt
BE1011784A3 (fr) *	1998-03-10	2000-01-11	Solvay	Procede de blanchiment de pate a papier.
BE1011785A3 (fr) *	1998-03-10	2000-01-11	Solvay	Procede de blanchiment et/ou de delignification de pates a papier chimiques.
DE69912128T2 (de) *	1998-04-17	2004-06-17	Alberta Research Council, Inc., Edmonton	Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
FI991241L (fi)	1999-06-01	2000-12-02	Aga Ab	Ligniinin valkaisu ja menetelmä paperin valmistamiseksi
GB2391011A (en) *	2002-07-19	2004-01-28	Crosmill Ltd	Bleaching cellulose suspensions
GB0901207D0 (en)	2009-01-26	2009-03-11	Innospec Ltd	Chelating agents and methods relating thereto
US9512237B2 (en)	2009-05-28	2016-12-06	Gp Cellulose Gmbh	Method for inhibiting the growth of microbes with a modified cellulose fiber
US9511167B2 (en)	2009-05-28	2016-12-06	Gp Cellulose Gmbh	Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512563B2 (en)	2009-05-28	2016-12-06	Gp Cellulose Gmbh	Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
ES2752755T3 (es)	2009-05-28	2020-04-06	Gp Cellulose Gmbh	Celulosa modificada de fibra química kraft y métodos de producción y uso de la misma
SE534885C2 (sv) *	2009-11-11	2012-01-31	Metso Paper Inc	Förfarande för att producera en pappersmassa från lignocellulosamaterial innehållande minst 0,5% SiO2
EP2971334A2 (de)	2013-03-14	2016-01-20	GP Cellulose GmbH	Verfahren zur herstellung hochfunktioneller, niedrigviskoser kraftfasern mittels eines sauren bleichsequenz und nach diesem verfahren hergestellte faser
CA2901915A1 (en) *	2013-03-15	2014-09-18	Gp Cellulose Gmbh	A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
WO2015138335A1 (en) *	2014-03-12	2015-09-17	Gp Cellulose Gmbh	A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
WO2018093697A1 (en)	2016-11-16	2018-05-24	Gp Cellulose Gmbh	Modified cellulose from chemical fiber and methods of making and using the same
CZ309643B6 (cs) *	2021-07-21	2023-06-07	Univerzita Pardubice	Hořečnaté sole derivátů asparagové kyseliny a jejich použití jako stabilizátorů peroxidu vodíku

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US5362412A (en) *	1991-04-17	1994-11-08	Hampshire Chemical Corp.	Biodegradable bleach stabilizers for detergents
GB9216408D0 (en) *	1992-08-01	1992-09-16	Procter & Gamble	Stabilized bleaching compositions
DE4340043A1 (de) *	1993-11-24	1995-06-01	Henkel Kgaa	Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche
DE4445931A1 (de) *	1994-12-22	1996-06-27	Basf Ag	Verwendung von Hydroxyalkylaminocarbonsäuren als Komplexbildner

1996
- 1996-02-19 FI FI960756A patent/FI115469B/fi not_active IP Right Cessation
1997
- 1997-02-19 DE DE69725558T patent/DE69725558T2/de not_active Expired - Lifetime
- 1997-02-19 WO PCT/FI1997/000106 patent/WO1997030208A1/en not_active Ceased
- 1997-02-19 AU AU17973/97A patent/AU1797397A/en not_active Abandoned
- 1997-02-19 AT AT97903408T patent/ATE252176T1/de not_active IP Right Cessation
- 1997-02-19 EP EP97903408A patent/EP0882151B1/de not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9730208A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US9745700B2 (en)	2008-06-20	2017-08-29	International Paper Company	Composition and recording sheet with improved optical properties

Also Published As

Publication number	Publication date
DE69725558T2 (de)	2004-08-05
FI960756L (fi)	1997-08-20
WO1997030208A1 (en)	1997-08-21
DE69725558D1 (de)	2003-11-20
FI960756A0 (fi)	1996-02-19
ATE252176T1 (de)	2003-11-15
AU1797397A (en)	1997-09-02
EP0882151B1 (de)	2003-10-15
FI115469B (fi)	2005-05-13

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Publication	Publication Date	Title
EP0882151B1 (de)	2003-10-15	Verfahren zur behandlung von chemischem zellstoff
Zeronian et al.	1995	Bleaching of cellulose by hydrogen peroxide
US5785812A (en)	1998-07-28	Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
JP2009074234A (ja)	2009-04-09	細砕セルロース繊維材のスラリーを処理する方法
EP0882152B1 (de)	2004-11-17	Verfahren zum bleichen von hochausbeutepapierzellstoff
CA2256579A1 (en)	1997-12-04	Process for the bleaching of chemical pulp
EP1030943B1 (de)	2002-02-13	Bleichen von chemischem zellstoff und behandlung mit einem komplexbildner
WO1995035408A1 (en)	1995-12-28	Delignification of chemical pulp with peroxide in the presence of transition metal
WO1997030207A1 (en)	1997-08-21	Process for bleaching of chemical pulp
AU671337B2 (en)	1996-08-22	Process for bleaching of lignocellulose-containing pulp
JPH08507332A (ja)	1996-08-06	製紙用化学パルプの脱リグニン方法
WO1997030210A1 (en)	1997-08-21	Process for bleaching of a high yield pulp
JP3360694B2 (ja)	2002-12-24	製紙用化学パルプの脱リグニン漂白方法
JPH06158573A (ja)	1994-06-07	製紙用化学パルプの漂白方法
CA2310278A1 (en)	1999-06-03	Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions

EP0882151A1 - Verfahren zur behandlung von chemischem zellstoff - Google Patents

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Publications (2)

Family

ID=8545485

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (20)

Family Cites Families (4)

Non-Patent Citations (1)

Cited By (1)

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