ATE284994T1 - Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben - Google Patents

Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben

Info

Publication number: ATE284994T1
Authority: AT; Austria
Prior art keywords: bleaching; solution; acid; caroate; carosic
Prior art date: 1997-03-21

Application number

AT98912491T

Other languages

English (en)

Inventor

Maximilian Dorn

Michael Gnann

Sven Gutewort

Werner Sebb

Original Assignee

Degussa Initiators Gmbh & Co K

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.)

1997-03-21

Filing date

1998-03-19

Publication date

2005-01-15

1998-01-27 Priority claimed from DE19803001A external-priority patent/DE19803001A1/de

1998-03-19 Application filed by Degussa Initiators Gmbh & Co K filed Critical Degussa Initiators Gmbh & Co K

2005-01-15 Application granted granted Critical

2005-01-15 Publication of ATE284994T1 publication Critical patent/ATE284994T1/de

Links

238000004061 bleaching Methods 0.000 title abstract 5
239000002253 acid Substances 0.000 title 1
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 abstract 3
229920002678 cellulose Polymers 0.000 abstract 2
239000001913 cellulose Substances 0.000 abstract 2
JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 abstract 2
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
238000005868 electrolysis reaction Methods 0.000 abstract 1
230000007062 hydrolysis Effects 0.000 abstract 1
238000006460 hydrolysis reaction Methods 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
229910021653 sulphate ion Inorganic materials 0.000 abstract 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
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Detergent Compositions (AREA)

AT98912491T 1997-03-21 1998-03-19 Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben ATE284994T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19711929		1997-03-21
DE19803001A DE19803001A1 (de)	1997-03-21	1998-01-27	Bleichen und Delignifizierung von Zellstoff durch Caroate/Carosche Säure und Herstellung derselben aus Persulfaten/Perschwefelsäure, die elektrochemisch hergestellt wird
PCT/EP1998/001622 WO1998042911A1 (de)	1997-03-21	1998-03-19	Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben

Publications (1)

Publication Number	Publication Date
ATE284994T1 true ATE284994T1 (de)	2005-01-15

Family

ID=26035106

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT98912491T ATE284994T1 (de)	1997-03-21	1998-03-19	Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben

Country Status (6)

Country	Link
EP (1)	EP0968328B1 (de)
JP (1)	JP2001518153A (de)
AT (1)	ATE284994T1 (de)
CA (1)	CA2284520A1 (de)
NO (1)	NO994554D0 (de)
WO (1)	WO1998042911A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4956991B2 (ja) *	2005-12-22	2012-06-20	三菱瓦斯化学株式会社	化学パルプの製造方法
JP4967451B2 (ja)	2006-05-17	2012-07-04	三菱瓦斯化学株式会社	漂白パルプの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4049786A (en) *	1976-09-13	1977-09-20	Fmc Corporation	Process of preparing peroxymonosulfate
US4144144A (en) *	1976-12-23	1979-03-13	Fmc Corporation	Electrolytic production of sodium persulfate
US4756800A (en) *	1986-09-03	1988-07-12	The United States Of America As Represented By The Secretary Of Agriculture	Method for producing salts of monoperoxysulfuric acid and simultaneously bleaching pulp
US5091054A (en) *	1989-08-18	1992-02-25	Degussa Corporation	Process for bleaching and delignification of lignocellulosic
BR9205620A (pt) *	1991-02-12	1994-05-03	Pulp Paper Res Inst	Polpa quimica, e, processo de branqueamento de polpa quimica.
CA2080026A1 (en) *	1992-09-09	1994-03-10	Alfred Wong	Novel method of bleaching of lignocelulosic pulp using persulphate

1998
- 1998-03-19 EP EP98912491A patent/EP0968328B1/de not_active Expired - Lifetime
- 1998-03-19 JP JP54485898A patent/JP2001518153A/ja active Pending
- 1998-03-19 WO PCT/EP1998/001622 patent/WO1998042911A1/de not_active Ceased
- 1998-03-19 CA CA002284520A patent/CA2284520A1/en not_active Abandoned
- 1998-03-19 AT AT98912491T patent/ATE284994T1/de not_active IP Right Cessation
1999
- 1999-09-20 NO NO994554A patent/NO994554D0/no not_active Application Discontinuation

Also Published As

Publication number	Publication date
JP2001518153A (ja)	2001-10-09
WO1998042911A1 (de)	1998-10-01
NO994554L (no)	1999-09-20
EP0968328A1 (de)	2000-01-05
EP0968328B1 (de)	2004-12-15
CA2284520A1 (en)	1998-10-01
NO994554D0 (no)	1999-09-20

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Legal Events

Date	Code	Title	Description
2006-06-15	REN	Ceased due to non-payment of the annual fee