ZA81785B - A method of bleaching cellulose with the aid of an organic acic - Google Patents

A method of bleaching cellulose with the aid of an organic acic

Info

Publication number: ZA81785B
Authority: ZA; South Africa
Prior art keywords: peroxide; organic; acid; cellulose; peracid
Prior art date: 1980-02-16

Application number

ZA00810785A

Other languages

English (en)

Inventor

W Berndt

H Krueger

H 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.)

1980-02-16

Filing date

1981-02-05

Publication date

1982-03-31

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6094866&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA81785(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1981-02-05 Application filed by Degussa filed Critical Degussa

1982-03-31 Publication of ZA81785B publication Critical patent/ZA81785B/xx

Links

238000004061 bleaching Methods 0.000 title abstract 4
229920002678 cellulose Polymers 0.000 title abstract 3
239000001913 cellulose Substances 0.000 title abstract 3
MKUXAQIIEYXACX-UHFFFAOYSA-N aciclovir Chemical compound N1C(N)=NC(=O)C2=C1N(COCCO)C=N2 MKUXAQIIEYXACX-UHFFFAOYSA-N 0.000 title 1
238000000034 method Methods 0.000 title 1
150000002978 peroxides Chemical class 0.000 abstract 4
239000002253 acid Substances 0.000 abstract 3
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
150000004965 peroxy acids Chemical class 0.000 abstract 2
239000003513 alkali Substances 0.000 abstract 1
150000001735 carboxylic acids Chemical class 0.000 abstract 1
229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
239000011707 mineral Substances 0.000 abstract 1
150000004967 organic peroxy acids Chemical class 0.000 abstract 1
238000005406 washing Methods 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

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Manufacture Of Macromolecular Shaped Articles (AREA)
Compositions Of Macromolecular Compounds (AREA)
Macromonomer-Based Addition Polymer (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Micro-Organisms Or Cultivation Processes Thereof (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)

ZA00810785A 1980-02-16 1981-02-05 A method of bleaching cellulose with the aid of an organic acic ZA81785B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3005947A DE3005947B1 (de)	1980-02-16	1980-02-16	Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure

Publications (1)

Publication Number	Publication Date
ZA81785B true ZA81785B (en)	1982-03-31

Family

ID=6094866

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA00810785A ZA81785B (en)	1980-02-16	1981-02-05	A method of bleaching cellulose with the aid of an organic acic

Country Status (10)

Country	Link
US (1)	US4400237A (fr)
EP (1)	EP0034219B2 (fr)
JP (1)	JPS56128389A (fr)
AT (1)	ATE1826T1 (fr)
BR (1)	BR8100867A (fr)
CA (1)	CA1144711A (fr)
DE (2)	DE3005947B1 (fr)
FI (1)	FI68685C (fr)
NO (1)	NO155499B (fr)
ZA (1)	ZA81785B (fr)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5721591A (en) *	1980-07-11	1982-02-04	Mitsubishi Gas Chemical Co	Peroxide bleaching of wood pulp
FR2520397A1 (fr) *	1982-01-28	1983-07-29	Centre Tech Ind Papier	Procede pour le traitement de pates papetieres chimiques
AT378016B (de) *	1982-12-02	1985-06-10	Ver Edelstahlwerke Ag	Verfahren zum entfaerben und/oder bleichen von zellulosematerial, insbesondere zellstoff, und vorrichtung zur durchfuehrung des verfahrens
US4793898A (en) *	1985-02-22	1988-12-27	Oy Keskuslaboratorio - Centrallaboratorium Ab	Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide
FI74750C (fi) *	1985-03-22	1988-03-10	Keskuslaboratorio	Foerfarande foer framstaellning av blekt cellulosamassa utav ligninhaltigt raomaterial.
US4859282A (en) *	1988-04-15	1989-08-22	E. I. Du Pont De Nemours And Company	Acid purification of product from alkaline peroxide processing of nonwoody lignocellulosic substrates
FR2647641B1 (fr) *	1989-06-05	1992-01-17	Atochem	Procede de fabrication de pulpes vegetales blanchies
BE1004630A3 (fr) *	1990-10-17	1992-12-22	Interox Internat Sa	Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
DE4035813A1 (de) *	1990-11-10	1992-05-14	Akzo Gmbh	Sauerstoffbleichung
DE4114134A1 (de) *	1991-04-30	1992-11-05	Sueddeutsche Kalkstickstoff	Verfahren zur chlorfreien bleiche und delignifizierung von alkalizellstoff
DE4114135A1 (de) *	1991-04-30	1992-11-05	Sueddeutsche Kalkstickstoff	Verfahren zur chlorfreien bleiche und delignifizierung von alkalizellstoff
EP0844328A3 (fr) *	1991-10-04	1998-07-15	Solvay Interox, Inc.	Procédé pour l'amélioration de la sélectivité de la délignification d'une pâte à papier chimique
DE69301285T2 (de) *	1992-07-06	1996-08-22	Solvay Interox	Verfahren zur Delignifizierung von chemischen Zellstoffen
BE1006057A3 (fr) *	1992-07-06	1994-05-03	Solvay Interox	Procede pour la delignification d'une pate a papier chimique.
GB2269191A (en) *	1992-07-29	1994-02-02	Solvay Interox Ltd	Method of treating aqueous process liquors
US5589032A (en) *	1992-09-21	1996-12-31	North Carolina State University	Process for preparing a bleaching liquor containing percarboxylic acid and caro's acid
BR9307520A (pt) †	1992-11-27	1999-08-31	Eka Nobel Ab	Processo para o alvejamento de polpa contendo lignocelulose
EP0634521A1 (fr) *	1993-07-16	1995-01-18	Eka Nobel Ab	Procédé pour le blanchiment de fibres contenant de la lignocellulose
FI98841C (fi) *	1994-06-20	1997-08-25	Kemira Chemicals Oy	Menetelmä kemiallisen massan delignifioimiseksi
DE19516151A1 (de) *	1995-05-03	1996-11-07	Sven Siegle	Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung
GB2304126A (en) *	1995-08-10	1997-03-12	Warwick Int Group	Pulp treatment process
US5770011A (en) *	1995-11-17	1998-06-23	International Paper Company	Neutral monoperoxysulfate bleaching process
RU2129179C1 (ru) *	1998-03-17	1999-04-20	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки сульфатной целлюлозы
RU2164572C1 (ru) *	2000-03-14	2001-03-27	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки сульфатной целлюлозы
FR2814180B1 (fr) *	2000-09-18	2003-12-05	Michel Delmas	Procede de blanchiment de pates a papier en milieu organique a hydratation controlee
US20040200588A1 (en) *	2003-04-10	2004-10-14	Walker Jayne M.A.	Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes
US8476052B2 (en) *	2003-12-03	2013-07-02	Danisco Us Inc.	Enzyme for the production of long chain peracid
US7754460B2 (en) *	2003-12-03	2010-07-13	Danisco Us Inc.	Enzyme for the production of long chain peracid
CN103333870A (zh)	2003-12-03	2013-10-02	丹尼斯科美国公司	过水解酶
US7297225B2 (en) *	2004-06-22	2007-11-20	Georgia-Pacific Consumer Products Lp	Process for high temperature peroxide bleaching of pulp with cool discharge
FI121311B (fi)	2005-05-03	2010-09-30	M Real Oyj	Menetelmä paperin- ja kartonginvalmistukseen soveltuvan mekaanisen massan valmistamiseksi
US8871722B2 (en) *	2005-12-06	2014-10-28	Danisco Us Inc.	Perhydrolase epitopes
WO2007133263A2 (fr) *	2005-12-09	2007-11-22	Genencor International, Inc.	Acyle transférase utile pour la décontamination
US20080087390A1 (en) *	2006-10-11	2008-04-17	Fort James Corporation	Multi-step pulp bleaching
US8845860B2 (en)	2010-09-16	2014-09-30	Georgia-Pacific Consumer Products Lp	High brightness pulps from lignin rich waste papers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2394989A (en) *	1942-03-11	1946-02-19	Bonard Claude	Manufacture of cellulose
US2730444A (en) *	1950-10-10	1956-01-10	British Celanese	Production of cellulose
NL293489A (fr) *	1962-07-16
DE2219505C3 (de) *	1972-04-21	1974-10-17	Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt	Chlorfreie Mehrstufenbleiche von Zellstoff

1980
- 1980-02-16 DE DE3005947A patent/DE3005947B1/de not_active Ceased
- 1980-12-18 DE DE8080108011T patent/DE3061114D1/de not_active Expired
- 1980-12-18 AT AT80108011T patent/ATE1826T1/de not_active IP Right Cessation
- 1980-12-18 EP EP80108011A patent/EP0034219B2/fr not_active Expired
1981
- 1981-01-09 NO NO810057A patent/NO155499B/no unknown
- 1981-02-05 ZA ZA00810785A patent/ZA81785B/xx unknown
- 1981-02-06 US US06/232,217 patent/US4400237A/en not_active Expired - Fee Related
- 1981-02-09 FI FI810366A patent/FI68685C/fi not_active IP Right Cessation
- 1981-02-13 CA CA000370899A patent/CA1144711A/fr not_active Expired
- 1981-02-13 BR BR8100867A patent/BR8100867A/pt unknown
- 1981-02-16 JP JP2026381A patent/JPS56128389A/ja active Pending

Also Published As

Publication number	Publication date
NO155499B (no)	1986-12-29
BR8100867A (pt)	1981-08-25
EP0034219B1 (fr)	1982-11-17
EP0034219B2 (fr)	1986-04-16
US4400237A (en)	1983-08-23
FI68685B (fi)	1985-06-28
FI68685C (fi)	1985-10-10
ATE1826T1 (de)	1982-12-15
DE3005947B1 (de)	1981-01-29
DE3061114D1 (en)	1982-12-23
FI810366L (fi)	1981-08-17
NO810057L (no)	1981-08-17
CA1144711A (fr)	1983-04-19
EP0034219A1 (fr)	1981-08-26
JPS56128389A (en)	1981-10-07

Publication	Publication Date	Title
ZA81785B (en)	1982-03-31	A method of bleaching cellulose with the aid of an organic acic
SE7801868L (sv)	1979-08-18	Blekning av lignocellulosamaterial med peroxidhaltiga blekmedel
DE3163280D1 (en)	1984-05-30	Process for the regeneration of waste paper
EP0396287A3 (fr)	1991-10-02	Méthode et produit pour accroítre le blanchiment avec formation in situ de peracide
DE3561165D1 (en)	1988-01-21	Process for bleaching mechanical pulp with hydrogen peroxide
ATE132926T1 (de)	1996-01-15	Verfahren zur delignifizierung von chemischen zellstoffen
ATE130388T1 (de)	1995-12-15	Verfahren zum bleichen von mechanischem holzstoff.
SE8003911L (sv)	1981-11-28	Forfarande for syrgasblekning av cellulosamassa
DE69111098D1 (de)	1995-08-17	Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
FI884807A0 (fi)	1988-10-18	Peroxidblekning av mekaniska massor.
SE8200756L (sv)	1982-08-12	Sett att framstella kemimekanisk pappersmassa
AU2538292A (en)	1993-04-22	Process for improving the selectivity of the delignification of a chemical paper pulp
FI843975L (fi)	1985-04-14	Hypokloritbehandling av kemiska pappersmassor.
SE8604852L (sv)	1988-05-14	Delignifiering och blekning av en cellulosamassa med en alkali-syre-hypokloritextraktion
FI893742A0 (fi)	1989-08-08	Parannettu peroksidivalkaisumenetelmä
FR2398839A1 (fr)	1979-02-23	Procede de fabrication de pates papetieres chimiques
DE3569270D1 (en)	1989-05-11	Process for bleaching cotton-containing fabrics with hypochlorite at elevated temperatures
SE8700313L (sv)	1987-07-31	Forfarande for blekning av mekaniska massor
NO864319L (no)	1987-05-04	Fremgangsmaate for bleking av kjemisk papirmasse.
GB785060A (en)	1957-10-23	Process for obtaining bleached semi-chemical pulp
FR2390541A1 (fr)	1978-12-08	Procede de blanchiment de cellulose
SE9801953L (sv)	1999-12-03	Alkaliaddition