CN1159842A - 用螯合剂和氧化剂对化学纸浆进行与漂白有关的处理 - Google Patents

用螯合剂和氧化剂对化学纸浆进行与漂白有关的处理 Download PDF

Info

Publication number: CN1159842A
Authority: CN; China
Prior art keywords: paper pulp; chelating agent; bleaching; pulp; agent
Prior art date: 1994-10-07
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.): Pending

Application number

CN 95195457

Other languages

English (en)

Chinese (zh)

Inventor

U·杰马加得

R·博曼

K·哈夫芬斯特伦

J·林奎斯特

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.)

Valmet AB

Original Assignee

Sunds Defibrator Industries AB

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.)

1994-10-07

Filing date

1995-10-05

Publication date

1997-09-17

1995-10-05 Application filed by Sunds Defibrator Industries AB filed Critical Sunds Defibrator Industries AB

1997-09-17 Publication of CN1159842A publication Critical patent/CN1159842A/zh

Status Pending legal-status Critical Current

Links

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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

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

CN 95195457 1994-10-07 1995-10-05 用螯合剂和氧化剂对化学纸浆进行与漂白有关的处理 Pending CN1159842A (zh)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9403396A SE504826C2 (sv)	1994-10-07	1994-10-07	Behandling av kemisk massa med komplexbildare i närvaro av ett oxidationsmedel
SE9403396-6		1994-10-07

Publications (1)

Publication Number	Publication Date
CN1159842A true CN1159842A (zh)	1997-09-17

Family

ID=20395512

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN 95195457 Pending CN1159842A (zh)	1994-10-07	1995-10-05	用螯合剂和氧化剂对化学纸浆进行与漂白有关的处理

Country Status (10)

Country	Link
EP (1)	EP0784720A1 (sv)
JP (1)	JPH10506965A (sv)
CN (1)	CN1159842A (sv)
AU (1)	AU686024B2 (sv)
BR (1)	BR9509253A (sv)
CA (1)	CA2199257A1 (sv)
FI (1)	FI971401A (sv)
NO (1)	NO971536D0 (sv)
SE (1)	SE504826C2 (sv)
WO (1)	WO1996011298A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2189412C2 (ru) *	1996-09-11	2002-09-20	Солвей Интерокс (Сосьете Аноним)	Способ отбеливания бумажной массы
BE1010617A3 (fr) *	1996-09-11	1998-11-03	Solvay Interox	Procede de blanchiment de pate a papier.
BE1010678A3 (fr) *	1996-10-11	1998-11-03	Solvay Interox	Procede de delignification et de blanchiment de pate a papier chimique.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE420430B (sv) *	1978-02-17	1981-10-05	Mo Och Domsjoe Ab	Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
ATE97179T1 (de) *	1989-06-06	1993-11-15	Eka Nobel Ab	Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.

1994
- 1994-10-07 SE SE9403396A patent/SE504826C2/sv not_active IP Right Cessation
1995
- 1995-10-05 EP EP95934912A patent/EP0784720A1/en not_active Withdrawn
- 1995-10-05 CA CA 2199257 patent/CA2199257A1/en not_active Abandoned
- 1995-10-05 AU AU37124/95A patent/AU686024B2/en not_active Ceased
- 1995-10-05 CN CN 95195457 patent/CN1159842A/zh active Pending
- 1995-10-05 BR BR9509253A patent/BR9509253A/pt not_active Application Discontinuation
- 1995-10-05 WO PCT/SE1995/001135 patent/WO1996011298A1/en not_active Application Discontinuation
- 1995-10-05 JP JP8512520A patent/JPH10506965A/ja active Pending
1997
- 1997-04-04 FI FI971401A patent/FI971401A/sv unknown
- 1997-04-04 NO NO971536A patent/NO971536D0/no unknown

Also Published As

Publication number	Publication date
FI971401A0 (sv)	1997-04-04
AU3712495A (en)	1996-05-02
CA2199257A1 (en)	1996-04-18
NO971536L (no)	1997-04-04
SE9403396D0 (sv)	1994-10-07
AU686024B2 (en)	1998-01-29
SE504826C2 (sv)	1997-05-12
NO971536D0 (no)	1997-04-04
FI971401A (sv)	1997-04-04
WO1996011298A1 (en)	1996-04-18
EP0784720A1 (en)	1997-07-23
JPH10506965A (ja)	1998-07-07
BR9509253A (pt)	1997-10-21
SE9403396L (sv)	1996-04-08

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Legal Events

Date	Code	Title
1997-09-17	C06	Publication
1997-09-17	PB01	Publication
1997-10-08	C10	Entry into substantive examination
1997-10-08	SE01	Entry into force of request for substantive examination
1999-12-15	C01	Deemed withdrawal of patent application (patent law 1993)