CA1122358A - Process for the full bleaching of pulp - Google Patents

Process for the full bleaching of pulp

Info

Publication number: CA1122358A
Authority: CA; Canada
Prior art keywords: stage; pulp; process according; minutes; temperature
Prior art date: 1978-09-21
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.): Expired

Application number

CA335,412A

Other languages

English (en)

French (fr)

Inventor

Horst Kruger

Wilhelm Berndt

Hans U. Suss

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.)

Evonik Operations GmbH

Original Assignee

Degussa GmbH

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.)

1978-09-21

Filing date

1979-09-11

Publication date

1982-04-27

1979-09-11 Application filed by Degussa GmbH filed Critical Degussa GmbH

1982-04-27 Application granted granted Critical

1982-04-27 Publication of CA1122358A publication Critical patent/CA1122358A/en

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 31
230000008569 process Effects 0.000 title claims abstract description 31
238000004061 bleaching Methods 0.000 title claims abstract description 28
150000001875 compounds Chemical class 0.000 claims abstract description 18
229910001919 chlorite Inorganic materials 0.000 claims abstract description 12
229910052619 chlorite group Inorganic materials 0.000 claims abstract description 12
QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims abstract description 12
238000002203 pretreatment Methods 0.000 claims abstract description 7
159000000003 magnesium salts Chemical class 0.000 claims abstract description 6
239000008139 complexing agent Substances 0.000 claims abstract description 5
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 31
238000005406 washing Methods 0.000 claims description 17
UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 9
239000011777 magnesium Substances 0.000 claims description 7
229960002218 sodium chlorite Drugs 0.000 claims description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
229910052749 magnesium Inorganic materials 0.000 claims 4
150000003839 salts Chemical class 0.000 claims 2
241000294754 Macroptilium atropurpureum Species 0.000 description 10
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 8
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
229920000297 Rayon Polymers 0.000 description 6
239000000460 chlorine Substances 0.000 description 6
229910052801 chlorine Inorganic materials 0.000 description 6
239000003513 alkali Substances 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 4
229910052943 magnesium sulfate Inorganic materials 0.000 description 4
235000019341 magnesium sulphate Nutrition 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
229910017604 nitric acid Inorganic materials 0.000 description 3
150000002978 peroxides Chemical class 0.000 description 3
239000002964 rayon Substances 0.000 description 3
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 2
229920002678 cellulose Polymers 0.000 description 2
239000001913 cellulose Substances 0.000 description 2
238000005260 corrosion Methods 0.000 description 2
230000007797 corrosion Effects 0.000 description 2
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
229960001484 edetic acid Drugs 0.000 description 2
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
239000000047 product Substances 0.000 description 2
PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 2
CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
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 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
239000004155 Chlorine dioxide Substances 0.000 description 1
241000218631 Coniferophyta Species 0.000 description 1
-1 MgC12 Inorganic materials 0.000 description 1
241000218657 Picea Species 0.000 description 1
241000219000 Populus Species 0.000 description 1
239000002253 acid Substances 0.000 description 1
235000019398 chlorine dioxide Nutrition 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
239000012467 final product Substances 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
238000002386 leaching Methods 0.000 description 1
YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Inorganic materials [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000011707 mineral Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
150000007524 organic acids Chemical class 0.000 description 1
150000001451 organic peroxides Chemical class 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
239000002351 wastewater Substances 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Detergent Compositions (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)

CA335,412A 1978-09-21 1979-09-11 Process for the full bleaching of pulp Expired CA1122358A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DEP2841013.1		1978-09-21
DE2841013A DE2841013C2 (de)	1978-09-21	1978-09-21	Verfahren zur Vollbleiche von Zellstoff

Publications (1)

Publication Number	Publication Date
CA1122358A true CA1122358A (en)	1982-04-27

Family

ID=6049994

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA335,412A Expired CA1122358A (en)	1978-09-21	1979-09-11	Process for the full bleaching of pulp

Country Status (11)

Country	Link
AT (1)	AT372426B (it)
BE (1)	BE878841A (it)
BR (1)	BR7905860A (it)
CA (1)	CA1122358A (it)
CH (1)	CH641515A5 (it)
DE (1)	DE2841013C2 (it)
FI (1)	FI68681C (it)
FR (1)	FR2436846A1 (it)
IT (1)	IT1119314B (it)
NO (1)	NO153342C (it)
SE (1)	SE445366B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1991012366A1 (en) *	1990-02-19	1991-08-22	Amcor Limited	Bleaching of paper pulp
AU642971B2 (en) *	1990-02-19	1993-11-04	Paper Australia Pty Ltd	Bleaching of paper pulp
US5607546A (en) *	1990-02-13	1997-03-04	Molnlycke Ab	CTMP-process
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
US6458245B1 (en)	1990-02-13	2002-10-01	Sca Research Ab	CTMP-process

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3937932A1 (de) *	1989-11-15	1991-05-16	Holtzmann & Cie Ag E	Verfahren zum delignifizieren und bleichen von ungebleichten zellstoffsuspensionen mit alkalichlorit
SE500353C2 (sv) *	1992-10-26	1994-06-06	Sca Wifsta Oestrand Ab	Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen
SE9203366L (sv) *	1992-11-11	1994-05-12	Mo Och Domsjoe Ab	Förfarande vid delignifiering och/eller blekning av cellulosamassa
SE501325E (sv) *	1993-01-29	1999-09-20	Kvaerner Pulping Tech	Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare
SE502706E (sv) *	1994-04-05	1999-09-27	Mo Och Domsjoe Ab	Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE582239C (de) *	1929-03-16	1933-09-14	I G Farbenindustrie Akt Ges	Verfahren zum Bleichen von Bastfasern, insbesondere von Leinen und Hanf, in Form von Garnen und Geweben wie auch in Form von Rohfasern unter Verwendung von Superoxyd- und Hypochloritbaedern
FR1010501A (fr) *	1948-08-31	1952-06-12	Papiers Abadie Sa Des	Procédé de blanchîment des pâtes cellulosiques
SE335053B (it) *	1969-05-13	1971-05-10	Mo Och Domsjoe Ab
DE2219504C2 (de) *	1972-04-21	1974-10-03	Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt	Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
DE2327900C3 (de) *	1973-06-01	1985-02-07	Degussa Ag, 6000 Frankfurt	Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz
DE2721402C2 (de) *	1977-05-12	1984-04-12	Degussa Ag, 6000 Frankfurt	Verfahren zum Bleichen von Zellstoff

1978
- 1978-09-21 DE DE2841013A patent/DE2841013C2/de not_active Expired
1979
- 1979-06-20 NO NO792067A patent/NO153342C/no unknown
- 1979-06-29 IT IT68380/79A patent/IT1119314B/it active
- 1979-07-04 FI FI792115A patent/FI68681C/fi not_active IP Right Cessation
- 1979-07-10 FR FR7917876A patent/FR2436846A1/fr active Granted
- 1979-09-11 CA CA335,412A patent/CA1122358A/en not_active Expired
- 1979-09-13 BR BR7905860A patent/BR7905860A/pt unknown
- 1979-09-17 BE BE6/46946A patent/BE878841A/fr not_active IP Right Cessation
- 1979-09-20 AT AT0620579A patent/AT372426B/de not_active IP Right Cessation
- 1979-09-20 CH CH849479A patent/CH641515A5/de not_active IP Right Cessation
- 1979-09-21 SE SE7907850A patent/SE445366B/sv not_active IP Right Cessation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5607546A (en) *	1990-02-13	1997-03-04	Molnlycke Ab	CTMP-process
US6458245B1 (en)	1990-02-13	2002-10-01	Sca Research Ab	CTMP-process
WO1991012366A1 (en) *	1990-02-19	1991-08-22	Amcor Limited	Bleaching of paper pulp
AU642971B2 (en) *	1990-02-19	1993-11-04	Paper Australia Pty Ltd	Bleaching of paper pulp
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound

Also Published As

Publication number	Publication date
BE878841A (fr)	1980-03-17
IT1119314B (it)	1986-03-10
ATA620579A (de)	1983-02-15
CH641515A5 (en)	1984-02-29
DE2841013A1 (de)	1980-04-03
FR2436846B1 (it)	1982-08-27
FI68681B (fi)	1985-06-28
FI792115A7 (fi)	1980-03-22
AT372426B (de)	1983-10-10
NO153342B (no)	1985-11-18
BR7905860A (pt)	1980-05-20
SE445366B (sv)	1986-06-16
FR2436846A1 (fr)	1980-04-18
FI68681C (fi)	1985-10-10
NO792067L (no)	1980-03-24
SE7907850L (sv)	1980-03-22
DE2841013C2 (de)	1984-06-07
NO153342C (no)	1986-02-26
IT7968380A0 (it)	1979-06-29

Legal Events

Date	Code	Title	Description
1999-04-27	MKEX	Expiry

Publication	Publication Date	Title
US4459174A (en)	1984-07-10	Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps
CA1144711A (en)	1983-04-19	Process for bleaching pulps by means of organic per acid
US4661205A (en)	1987-04-28	Method of bleaching lignocellulosic material with peroxide catalyzed with a salt of a metal
DE3017712C2 (de)	1986-11-06	Verfahren zur alkalischen Extraktion von Fasermaterial enthaltenden Cellulosesuspensionen nach Behandlung mit Chlor oder Chlordioxid oder Mischungen davon
CA1122358A (en)	1982-04-27	Process for the full bleaching of pulp
JPH0718108B2 (ja)	1995-03-01	リグニン含有原料からセルロースを製造する方法
DE69420306T2 (de)	2000-04-20	Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff
DE69205847T2 (de)	1996-06-27	Enzymatische Behandlung von lignocellulosischem Zellstoff.
EP0710214B1 (en)	2001-01-10	The use of dialdehydes and acetals thereof for inhibiting decomposition of peroxide in the production and the treatment of recycled fiber pulp and other fiber pulp
US3382149A (en)	1968-05-07	Bleaching of hardwood sulfite pulp with hydrogen peroxide, including pretreatment with alkali
EP0447673B1 (de)	1995-03-08	Verfahren zum enzymatischen Bleichen von Zellstoffen
JPH0723593B2 (ja)	1995-03-15	セルロ−ス含有製品を漂白およびリグニン除去する方法
US2487114A (en)	1949-11-08	Process for producing acetylatable cellulose from straw
EP0464110B1 (en)	1994-06-08	Bleaching process for the production of high bright pulps
US2528350A (en)	1950-10-31	Two-step digestion of hardwoods
CA1070056A (en)	1980-01-22	Process for oxygen alkali delignification of wood pulp
SE8200756L (sv)	1982-08-12	Sett att framstella kemimekanisk pappersmassa
DE69304342T2 (de)	1997-03-06	Verfahren zum bleichen von lignocellulose-enthaltendem zellstoff
CA1333650C (en)	1994-12-27	Peroxide bleaching method
CA1080406A (en)	1980-07-01	Bleach hydrolysis of pulp with substantially reduced use of chlorine
EP0485829A1 (de)	1992-05-20	Sauerstoffbleichung
DE69204457T2 (de)	1996-04-18	Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen.
EP0512978A1 (de)	1992-11-11	Verfahren zum Bleichen von xylan- und lignocellulosehältigen Materialien
DE69805056T2 (de)	2002-11-14	Delignifizierung von zellstoff mit sauerstoff
DE69410286T2 (de)	1998-12-10	Verfahren zum bleichen von zellstoff

CA1122358A - Process for the full bleaching of pulp - Google Patents

Info

Links

Classifications

Landscapes

Applications Claiming Priority (2)

Publications (1)

Family

ID=6049994

Family Applications (1)

Country Status (11)

Cited By (5)

Families Citing this family (5)

Family Cites Families (6)

Cited By (5)

Also Published As

Similar Documents

Legal Events