CN1103832C - 用螯合剂而不用漂白塔处理纸浆 - Google Patents

用螯合剂而不用漂白塔处理纸浆 Download PDF

Info

Publication number
CN1103832C
CN1103832C CN97181066A CN97181066A CN1103832C CN 1103832 C CN1103832 C CN 1103832C CN 97181066 A CN97181066 A CN 97181066A CN 97181066 A CN97181066 A CN 97181066A CN 1103832 C CN1103832 C CN 1103832C
Authority
CN
China
Prior art keywords
chelating agent
pulp
feature
paper pulp
mix stages
Prior art date
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.)
Expired - Fee Related
Application number
CN97181066A
Other languages
English (en)
Chinese (zh)
Other versions
CN1242060A (zh
Inventor
U·杰姆加德
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.)
Filing date
Publication date
Application filed by Sunds Defibrator Industries AB filed Critical Sunds Defibrator Industries AB
Publication of CN1242060A publication Critical patent/CN1242060A/zh
Application granted granted Critical
Publication of CN1103832C publication Critical patent/CN1103832C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Hybrid Cells (AREA)
  • Noodles (AREA)
CN97181066A 1997-01-03 1997-11-06 用螯合剂而不用漂白塔处理纸浆 Expired - Fee Related CN1103832C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE97000301 1997-01-03
SE9700030A SE508239C2 (sv) 1997-01-03 1997-01-03 Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn

Publications (2)

Publication Number Publication Date
CN1242060A CN1242060A (zh) 2000-01-19
CN1103832C true CN1103832C (zh) 2003-03-26

Family

ID=20405369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97181066A Expired - Fee Related CN1103832C (zh) 1997-01-03 1997-11-06 用螯合剂而不用漂白塔处理纸浆

Country Status (16)

Country Link
EP (1) EP0951599B1 (sv)
JP (1) JP2001508837A (sv)
CN (1) CN1103832C (sv)
AT (1) ATE241725T1 (sv)
AU (1) AU726599B2 (sv)
BR (1) BR9714252A (sv)
CA (1) CA2275257A1 (sv)
DE (1) DE69722445T2 (sv)
ES (1) ES2195123T3 (sv)
ID (1) ID20003A (sv)
NO (1) NO993290L (sv)
NZ (1) NZ336204A (sv)
PT (1) PT951599E (sv)
SE (1) SE508239C2 (sv)
WO (1) WO1998029597A1 (sv)
ZA (1) ZA9710418B (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446054B (zh) * 2008-12-23 2010-04-14 华南理工大学 年产5万吨以上纸浆生产线的全无氯漂白方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023607A1 (en) * 1992-05-11 1993-11-25 Kamyr Ab A process for bleaching pulp without using chlorine-containing chemicals
WO1994029514A1 (en) * 1993-06-11 1994-12-22 Kvaerner Pulping Technologies Ab Ozone bleaching
WO1995008666A1 (en) * 1993-09-21 1995-03-30 Sunds Defibrator Industries Ab Chlorine-free bleaching of chemical pulp involving a two stage treatment with chelating agent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504803C2 (sv) * 1995-08-24 1997-04-28 Sunds Defibrator Ind Ab Behandling av massa med komplexbildare i minst två blandningssteg utan mellanliggande tvätt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023607A1 (en) * 1992-05-11 1993-11-25 Kamyr Ab A process for bleaching pulp without using chlorine-containing chemicals
WO1994029514A1 (en) * 1993-06-11 1994-12-22 Kvaerner Pulping Technologies Ab Ozone bleaching
WO1995008666A1 (en) * 1993-09-21 1995-03-30 Sunds Defibrator Industries Ab Chlorine-free bleaching of chemical pulp involving a two stage treatment with chelating agent

Also Published As

Publication number Publication date
NO993290D0 (no) 1999-07-02
AU726599B2 (en) 2000-11-16
DE69722445T2 (de) 2004-01-15
NZ336204A (en) 1999-11-29
JP2001508837A (ja) 2001-07-03
AU4974197A (en) 1998-07-31
CN1242060A (zh) 2000-01-19
CA2275257A1 (en) 1998-07-09
BR9714252A (pt) 2000-04-18
WO1998029597A1 (en) 1998-07-09
ID20003A (id) 1998-09-10
DE69722445D1 (de) 2003-07-03
SE9700030L (sv) 1998-07-04
SE508239C2 (sv) 1998-09-21
ATE241725T1 (de) 2003-06-15
EP0951599B1 (en) 2003-05-28
NO993290L (no) 1999-09-02
PT951599E (pt) 2003-10-31
SE9700030D0 (sv) 1997-01-03
ZA9710418B (en) 1998-06-10
EP0951599A1 (en) 1999-10-27
ES2195123T3 (es) 2003-12-01

Similar Documents

Publication Publication Date Title
WO1979000637A1 (en) Bleaching lignocellulose material with bleaching agents containing peroxide
EP0650541B1 (en) Process for bleaching pulp in conjunction with adsorption of metals
FI93232C (sv) Förfarande för blekning av massa med klorfria kemikalier
CN1103832C (zh) 用螯合剂而不用漂白塔处理纸浆
AU686024B2 (en) Treatment of chemical pulp with a chelating agent and an oxidizing agent in connection with bleaching
EP0846199B1 (en) Treatment of pulp with chelating agent in at least two mixing steps without intermediate washing
US5980689A (en) Method of separating metal ions from pulp using a chelating agent
CA2149332A1 (en) Method of bleaching pulp
US6375797B1 (en) Bleaching chemical pulp in a PkDQ-Po Sequence
JPH05247864A (ja) セルロースパルプの漂白法
WO1998014657A1 (en) Oxidation of disturbing metal ions in bleaching processes
CA1249904A (en) Oxygen alkali extraction of cellulosic pulp
EP0303962A2 (en) Oxygen alkali extraction process for producing bleached pulp

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee