AU565124B2 - Hypochlorite treatment of chemical paper pulps - Google Patents

Hypochlorite treatment of chemical paper pulps

Info

Publication number
AU565124B2
AU565124B2 AU34211/84A AU3421184A AU565124B2 AU 565124 B2 AU565124 B2 AU 565124B2 AU 34211/84 A AU34211/84 A AU 34211/84A AU 3421184 A AU3421184 A AU 3421184A AU 565124 B2 AU565124 B2 AU 565124B2
Authority
AU
Australia
Prior art keywords
paper pulps
chemical paper
hypochlorite treatment
hypochlorite
hydrogen peroxide
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.)
Ceased
Application number
AU34211/84A
Other versions
AU3421184A (en
Inventor
Christian De Choudens
Dominique Lachenal
Luis Soria-Mozzone
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.)
Arkema France SA
Original Assignee
Atochem SA
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 Atochem SA filed Critical Atochem SA
Publication of AU3421184A publication Critical patent/AU3421184A/en
Application granted granted Critical
Publication of AU565124B2 publication Critical patent/AU565124B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • D21C9/12—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)
  • Detergent Compositions (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Cosmetics (AREA)

Abstract

1. Process for bleaching chemical paper pulps by means of an alkaline hypochlorite solution and then hydrogen peroxide, without intermediate washing of the treated pulp, characterized in that the hydrogen peroxide is added when 85% to 95% of the hypochlorite is consumed.
AU34211/84A 1983-10-13 1984-10-12 Hypochlorite treatment of chemical paper pulps Ceased AU565124B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8316500A FR2553444B1 (en) 1983-10-13 1983-10-13 HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP
FR8316500 1983-10-13

Publications (2)

Publication Number Publication Date
AU3421184A AU3421184A (en) 1985-04-18
AU565124B2 true AU565124B2 (en) 1987-09-03

Family

ID=9293226

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34211/84A Ceased AU565124B2 (en) 1983-10-13 1984-10-12 Hypochlorite treatment of chemical paper pulps

Country Status (9)

Country Link
EP (1) EP0140804B1 (en)
JP (1) JPS6099086A (en)
AT (1) ATE24745T1 (en)
AU (1) AU565124B2 (en)
CA (1) CA1269805A (en)
DE (2) DE3461941D1 (en)
ES (1) ES8603607A1 (en)
FI (1) FI75374C (en)
FR (1) FR2553444B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642652B2 (en) * 1989-06-23 1993-10-28 Carter Holt Harvey Limited Bleaching of lignocellulosic pulp

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6485598A (en) * 1996-12-11 1998-07-03 Akio Mita Method for storing and transporting cellulosic and process for manufacturing pulp
CN100500990C (en) * 2005-09-02 2009-06-17 华南理工大学 Paper pulp cleaning and bleaching process
JP4968638B2 (en) * 2005-11-15 2012-07-04 好高 青山 Shaft-shaped parts supply device
JP4941726B2 (en) * 2007-01-12 2012-05-30 沖縄県 Method for bleaching discolored wood
JP4943908B2 (en) * 2007-03-26 2012-05-30 陽一 松本 Method for producing kakkon fiber and kuzu fiber obtained by the method
JP2008264866A (en) * 2007-04-20 2008-11-06 Yoshitaka Aoyama Apparatus and method of controlling operation of electrode in electric resistance welding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736070C (en) * 1938-07-01 1943-06-07 Degussa Process for treating pulp
US2527563A (en) * 1947-08-13 1950-10-31 Buffalo Electro Chem Co Method of bleaching semichemical pulps
US2661261A (en) * 1950-06-30 1953-12-01 Buffalo Electro Chem Co Method of superbleaching chemical pulp
US2865701A (en) * 1953-12-07 1958-12-23 Nat Distillers Chem Corp Process of bleaching kraft pulp with alkaline hypochlorite bleach acidifying the pulp containing residual chlorine and then bleaching with alkaline peroxide
US2920011A (en) * 1955-03-18 1960-01-05 Waldorf Paper Prod Co Elevated temperature and pressure two stage hypochlorite peroxide pulp bleaching process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642652B2 (en) * 1989-06-23 1993-10-28 Carter Holt Harvey Limited Bleaching of lignocellulosic pulp

Also Published As

Publication number Publication date
JPS6099086A (en) 1985-06-01
ATE24745T1 (en) 1987-01-15
FI843975A0 (en) 1984-10-10
AU3421184A (en) 1985-04-18
FR2553444B1 (en) 1986-07-18
EP0140804A1 (en) 1985-05-08
EP0140804B1 (en) 1987-01-07
ES536713A0 (en) 1985-12-16
FR2553444A1 (en) 1985-04-19
DE140804T1 (en) 1985-12-05
FI75374B (en) 1988-02-29
DE3461941D1 (en) 1987-02-12
FI75374C (en) 1988-06-09
FI843975L (en) 1985-04-14
JPS6214678B2 (en) 1987-04-03
ES8603607A1 (en) 1985-12-16
CA1269805A (en) 1990-06-05

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