ATE35433T1 - Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche. - Google Patents

Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche.

Info

Publication number: ATE35433T1
Authority: AT; Austria
Prior art keywords: bleaching; methods; wood pulp; preparing chemical; chemical wood
Prior art date: 1984-10-25

Application number

AT85420187T

Other languages

English (en)

Inventor

Dominique Lachenal

Choudens Christian De

Original Assignee

Atochem

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.)

1984-10-25

Filing date

1985-10-22

Publication date

1988-07-15

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9309092&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE35433(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1985-10-22 Application filed by Atochem filed Critical Atochem

1988-07-15 Application granted granted Critical

1988-07-15 Publication of ATE35433T1 publication Critical patent/ATE35433T1/de

Links

229920001131 Pulp (paper) Polymers 0.000 title abstract 2
239000000126 substance Substances 0.000 title abstract 2
238000004061 bleaching Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 3
239000000460 chlorine Substances 0.000 abstract 3
229910052801 chlorine Inorganic materials 0.000 abstract 3
239000007844 bleaching agent Substances 0.000 abstract 1
238000004519 manufacturing process Methods 0.000 abstract 1
150000002927 oxygen compounds Chemical class 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Nitrogen Condensed Heterocyclic Rings (AREA)
Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

AT85420187T 1984-10-25 1985-10-22 Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche. ATE35433T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8416518A FR2572431B1 (fr)	1984-10-25	1984-10-25	Procede pour la preparation des pates papetieres chimiques en vue du blanchiment.
EP85420187A EP0180529B2 (de)	1984-10-25	1985-10-22	Verfahren zur Bereitstellung von chemischen Holzpulpen hinsichtlich der Bleiche

Publications (1)

Publication Number	Publication Date
ATE35433T1 true ATE35433T1 (de)	1988-07-15

Family

ID=9309092

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT85420187T ATE35433T1 (de)	1984-10-25	1985-10-22	Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche.

Country Status (9)

Country	Link
EP (1)	EP0180529B2 (de)
JP (1)	JPS61102495A (de)
AT (1)	ATE35433T1 (de)
AU (1)	AU576394B2 (de)
CA (1)	CA1273755A (de)
DE (2)	DE180529T1 (de)
ES (1)	ES8606557A1 (de)
FI (1)	FI82726C (de)
FR (1)	FR2572431B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1544216A (en) *	1921-08-11	1925-06-30	Donald J Campbell	Molding apparatus
GB1262655A (en) *	1968-09-20	1972-02-02	Canadian Ind	Bleaching of wood pulp
JPS51102103A (en) *	1975-03-05	1976-09-09	Nippon Parupu Kogyo Kk	Ryusanenhoparupuno hyohakuhoho
DE2538673C2 (de) *	1975-08-30	1986-01-16	Degussa Ag, 6000 Frankfurt	Bleichaufschluß von Zellstoff mit erheblich reduziertem Chloreinsatz
US4402788A (en) *	1982-04-26	1983-09-06	Champion International Corporation	Process for bleaching wood pulp with hydrogen peroxide

1984
- 1984-10-25 FR FR8416518A patent/FR2572431B1/fr not_active Expired
1985
- 1985-10-22 DE DE198585420187T patent/DE180529T1/de active Pending
- 1985-10-22 AT AT85420187T patent/ATE35433T1/de not_active IP Right Cessation
- 1985-10-22 DE DE8585420187T patent/DE3563548D1/de not_active Expired
- 1985-10-22 EP EP85420187A patent/EP0180529B2/de not_active Expired - Lifetime
- 1985-10-23 FI FI854148A patent/FI82726C/fi not_active IP Right Cessation
- 1985-10-24 CA CA000493708A patent/CA1273755A/fr not_active Expired - Lifetime
- 1985-10-24 ES ES548166A patent/ES8606557A1/es not_active Expired
- 1985-10-25 AU AU49108/85A patent/AU576394B2/en not_active Ceased
- 1985-10-25 JP JP60239261A patent/JPS61102495A/ja active Pending

Also Published As

Publication number	Publication date
EP0180529B2 (de)	1992-04-08
AU576394B2 (en)	1988-08-25
FI82726B (fi)	1990-12-31
ES8606557A1 (es)	1986-04-01
FR2572431A1 (fr)	1986-05-02
ES548166A0 (es)	1986-04-01
AU4910885A (en)	1986-05-29
FI82726C (fi)	1991-04-10
EP0180529B1 (de)	1988-06-29
FI854148A0 (fi)	1985-10-23
FI854148L (fi)	1986-04-26
DE3563548D1 (en)	1988-08-04
FR2572431B1 (fr)	1987-12-04
JPS61102495A (ja)	1986-05-21
EP0180529A1 (de)	1986-05-07
CA1273755A (fr)	1990-09-11
DE180529T1 (de)	1986-12-18

Legal Events

Date	Code	Title
1989-01-15	UEP	Publication of translation of european patent specification
1992-11-15	UEP	Publication of translation of european patent specification
1996-07-15	REN	Ceased due to non-payment of the annual fee

Publication	Publication Date	Title
SE9001187D0 (sv)	1990-04-02	Oxygen bleaching with between stage washing
ATE2018T1 (de)	1982-12-15	Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.
ATE48290T1 (de)	1989-12-15	Verfahren zur delignifizierung und bleiche von zellstoffen.
DE3672577D1 (de)	1990-08-16	Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten.
DE68914135D1 (de)	1994-04-28	Verfahren zum Bleichen von Zellstoff.
DE3669334D1 (de)	1990-04-12	Sulfitaufschlussverfahren zur herstellung von zellstoff aus lignozellulosehaltigen materialien mit rueckgewinnung der aufschlusschemikalien.
ATE87283T1 (de)	1993-04-15	Verminderung der halogenierten organischen verbindungen in den bleichereiabwaessern.
DE68912322D1 (de)	1994-02-24	Verfahren zum Bleichen von Sulfatzellstoff.
ATE35433T1 (de)	1988-07-15	Verfahren zur bereitstellung von chemischen holzpulpen hinsichtlich der bleiche.
SE8008337L (sv)	1982-05-28	Forfarande for delignifiering/blekning av cellulosamassa
ATE24745T1 (de)	1987-01-15	Hypochlorit-behandlung von chemischen papierpulpen.
DE3674866D1 (de)	1990-11-15	Verfahren zur delignifizierung von zellulosematerialien.
DE3674859D1 (de)	1990-11-15	Verfahren zur delignifizierung von zellulosematerialien.
ATE48291T1 (de)	1989-12-15	Verfahren zum bleichen von chemischen holzpulpen.
SE8008336L (sv)	1982-05-28	Forfarande for delignifiering/blekning av cellulosamassa
SE8002723L (sv)	1980-10-17	Forbettrad blekningssekvens