CH641515A5 - Multi-stage process for complete bleaching of pulp - Google Patents

Multi-stage process for complete bleaching of pulp Download PDF

Info

Publication number: CH641515A5
Authority: CH; Switzerland
Prior art keywords: stage; weight; bleaching; pulp; substance
Prior art date: 1978-09-21

Application number

CH849479A

Other languages

German (de)

English (en)

Inventor

Horst Dr Krueger

Wilhelm Dr Berndt

Hans Dr Suess

Original Assignee

Degussa

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

1979-09-20

Publication date

1984-02-29

1979-09-20 Application filed by Degussa filed Critical Degussa

1984-02-29 Publication of CH641515A5 publication Critical patent/CH641515A5/de

Links

238000004061 bleaching Methods 0.000 title description 26
238000000034 method Methods 0.000 title description 24
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 39
MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Substances OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 21
229920002678 cellulose Polymers 0.000 description 19
239000001913 cellulose Substances 0.000 description 19
239000000126 substance Substances 0.000 description 16
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 11
150000001875 compounds Chemical class 0.000 description 11
229910001919 chlorite Inorganic materials 0.000 description 8
229910052619 chlorite group Inorganic materials 0.000 description 8
QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 8
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
239000000460 chlorine Substances 0.000 description 7
229910052801 chlorine Inorganic materials 0.000 description 7
229920000297 Rayon Polymers 0.000 description 6
241001070947 Fagus Species 0.000 description 5
235000010099 Fagus sylvatica Nutrition 0.000 description 5
241000218657 Picea Species 0.000 description 5
239000003513 alkali Substances 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 5
230000000052 comparative effect Effects 0.000 description 5
239000008139 complexing agent Substances 0.000 description 5
239000004744 fabric Substances 0.000 description 5
159000000003 magnesium salts Chemical class 0.000 description 5
238000005406 washing Methods 0.000 description 5
239000002253 acid Substances 0.000 description 4
238000002474 experimental method Methods 0.000 description 4
239000011777 magnesium Substances 0.000 description 4
239000002964 rayon Substances 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
238000005260 corrosion Methods 0.000 description 3
230000007797 corrosion Effects 0.000 description 3
229910017604 nitric acid Inorganic materials 0.000 description 3
150000002978 peroxides Chemical class 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
150000007513 acids Chemical class 0.000 description 2
239000007844 bleaching agent Substances 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
-1 compound hydrogen peroxide Chemical class 0.000 description 2
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
239000000835 fiber Substances 0.000 description 2
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
229910052943 magnesium sulfate Inorganic materials 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 2
229960002218 sodium chlorite Drugs 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
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 1
241000219000 Populus Species 0.000 description 1
SBLYADMLQVMVKY-UHFFFAOYSA-M [Na+].O[Cl]=O.[O-][Cl]=O Chemical compound [Na+].O[Cl]=O.[O-][Cl]=O SBLYADMLQVMVKY-UHFFFAOYSA-M 0.000 description 1
IENXJNLJEDMNTE-UHFFFAOYSA-N acetic acid;ethane-1,2-diamine Chemical compound CC(O)=O.NCCN IENXJNLJEDMNTE-UHFFFAOYSA-N 0.000 description 1
235000019398 chlorine dioxide Nutrition 0.000 description 1
229960001484 edetic acid Drugs 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000011707 mineral Substances 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
239000000047 product Substances 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000010865 sewage Substances 0.000 description 1
239000011122 softwood Substances 0.000 description 1
230000008719 thickening Effects 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)
Polysaccharides And Polysaccharide Derivatives (AREA)
Detergent Compositions (AREA)

CH849479A 1978-09-21 1979-09-20 Multi-stage process for complete bleaching of pulp CH641515A5 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
CH641515A5 true CH641515A5 (en)	1984-02-29

Family

ID=6049994

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH849479A CH641515A5 (en)	1978-09-21	1979-09-20	Multi-stage process for complete 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)

Families Citing this family (10)

* 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
SE466060C (sv)	1990-02-13	1995-09-11	Moelnlycke Ab	Absorberande kemitermomekanisk massa och framställning därav
US5607546A (en) *	1990-02-13	1997-03-04	Molnlycke Ab	CTMP-process
AU642971B2 (en) *	1990-02-19	1993-11-04	Paper Australia Pty Ltd	Bleaching of paper pulp
NZ237019A (en) *	1990-02-19	1992-11-25	Amcor Ltd	Bleaching paper pulp by initially treating with oxygen and/or hydrogen peroxide and subsequently treating with a bleaching agent without intervening washing steps
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
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

Also Published As

Publication number	Publication date
ATA620579A (de)	1983-02-15
IT1119314B (it)	1986-03-10
IT7968380A0 (it)	1979-06-29
BE878841A (fr)	1980-03-17
FR2436846A1 (fr)	1980-04-18
DE2841013A1 (de)	1980-04-03
BR7905860A (pt)	1980-05-20
DE2841013C2 (de)	1984-06-07
FI68681B (fi)	1985-06-28
CA1122358A (en)	1982-04-27
SE7907850L (sv)	1980-03-22
FI792115A7 (fi)	1980-03-22
SE445366B (sv)	1986-06-16
FI68681C (fi)	1985-10-10
FR2436846B1 (it)	1982-08-27
AT372426B (de)	1983-10-10
NO153342B (no)	1985-11-18
NO153342C (no)	1986-02-26
NO792067L (no)	1980-03-24

Legal Events

Date	Code	Title	Description
1988-05-31	PL	Patent ceased
2024-10-31	PL	Patent ceased

Publication	Publication Date	Title
DE2219504C2 (de)	1974-10-03	Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
DE69730233T2 (de)	2004-12-30	Verfahren zur zellstoffherstellung durch einstufiges kochen mit ameisensaüre und wäsche mit perameisensaüre
EP0034219B2 (de)	1986-04-16	Verfahren zur Bleiche von Zellstoffen mittels organischer Persäure
DE3017712C2 (de)	1986-11-06	Verfahren zur alkalischen Extraktion von Fasermaterial enthaltenden Cellulosesuspensionen nach Behandlung mit Chlor oder Chlordioxid oder Mischungen davon
DE2410934A1 (de)	1974-09-19	Verfahren zum bleichen und entfernen von lignin aus zellstoff
DE1546276A1 (de)	1970-04-30	Verfahren zum Bleichen von zellulosehaltigem Material
DE3302580C2 (it)	1992-07-02
DE3207157C1 (de)	1983-06-09	Verfahren zur Herstellung von halbgebleichten Zellstoffen
DE1594861C3 (it)	1974-05-09
DE2841013C2 (de)	1984-06-07	Verfahren zur Vollbleiche von Zellstoff
DE69111098T2 (de)	1995-11-23	Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
DE69100049T2 (de)	1993-09-16	Verminderung der halogenierten organischen verbindungen in den bleichereiabwaessern.
CH638003A5 (de)	1983-08-31	Verfahren zur herstellung von mittel- bis hochviskosem nadelholz-zellstoff.
DE3802401A1 (de)	1989-08-03	Verfahren zur herstellung von halbgebleichtem kraftzellstoff
DE69304342T2 (de)	1997-03-06	Verfahren zum bleichen von lignocellulose-enthaltendem zellstoff
DE973632C (de)	1960-04-21	Verfahren zum Bleichen von Holzzellstoff
DE2124324C3 (de)	1980-05-08	Verfahren zum Bleichen von Holzzellstoffen
DE2601380C2 (de)	1984-03-15	Verfahren zur Herstellung von gebleichter mechanischer Pulpe
DE60002613T2 (de)	2003-11-27	Verfahren zur verbesserung der opazität von mechanischer pulpe durch die anwendung von aliphatischen peroxysäuren und verwendung von peroxysäuren zur verbesserung der opazität
DE2124325C3 (de)	1980-06-19	Verfahren zum Bleichen von chemischen Holzzellstoff
DE69204457T2 (de)	1996-04-18	Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen.
DE1546226B1 (de)	1970-11-26	Verfahren zum Bleichen von Zellstoff
EP0512978A1 (de)	1992-11-11	Verfahren zum Bleichen von xylan- und lignocellulosehältigen Materialien
DE2833115C3 (de)	1986-04-17	Verfahren zur Herstellung von Papiermassen
DE69406457T2 (de)	1998-02-19	Ozonbleichverfahren für zellstoff