FR2553444B1 - HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP - Google Patents

HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP

Info

Publication number
FR2553444B1
FR2553444B1 FR8316500A FR8316500A FR2553444B1 FR 2553444 B1 FR2553444 B1 FR 2553444B1 FR 8316500 A FR8316500 A FR 8316500A FR 8316500 A FR8316500 A FR 8316500A FR 2553444 B1 FR2553444 B1 FR 2553444B1
Authority
FR
France
Prior art keywords
paper pulp
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.)
Expired
Application number
FR8316500A
Other languages
French (fr)
Other versions
FR2553444A1 (en
Inventor
Dominique Lachenal
Christian De Choudens
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.)
CENTRE TECH IND PAPIER
Original Assignee
CENTRE TECH IND PAPIER
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
Priority to FR8316500A priority Critical patent/FR2553444B1/en
Application filed by CENTRE TECH IND PAPIER filed Critical CENTRE TECH IND PAPIER
Priority to DE8484420167T priority patent/DE3461941D1/en
Priority to AT84420167T priority patent/ATE24745T1/en
Priority to EP84420167A priority patent/EP0140804B1/en
Priority to DE198484420167T priority patent/DE140804T1/en
Priority to FI843975A priority patent/FI75374C/en
Priority to ES536713A priority patent/ES536713A0/en
Priority to AU34211/84A priority patent/AU565124B2/en
Priority to JP59212741A priority patent/JPS6099086A/en
Priority to CA000465302A priority patent/CA1269805A/en
Publication of FR2553444A1 publication Critical patent/FR2553444A1/en
Application granted granted Critical
Publication of FR2553444B1 publication Critical patent/FR2553444B1/en
Expired 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)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Investigating Or Analysing Biological Materials (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.
FR8316500A 1983-10-13 1983-10-13 HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP Expired FR2553444B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR8316500A FR2553444B1 (en) 1983-10-13 1983-10-13 HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP
AT84420167T ATE24745T1 (en) 1983-10-13 1984-10-05 HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULP.
EP84420167A EP0140804B1 (en) 1983-10-13 1984-10-05 Hypochlorite treatment of chemical paper pulps
DE198484420167T DE140804T1 (en) 1983-10-13 1984-10-05 HYPOCHLORITE TREATMENT OF CHEMICAL PAPER PULPS.
DE8484420167T DE3461941D1 (en) 1983-10-13 1984-10-05 Hypochlorite treatment of chemical paper pulps
FI843975A FI75374C (en) 1983-10-13 1984-10-10 HYPOKLORITBEHANDLING AV KEMISKA PAPPERSMASSOR.
ES536713A ES536713A0 (en) 1983-10-13 1984-10-11 PROCEDURE FOR BLEACHING CHEMICAL BINS
AU34211/84A AU565124B2 (en) 1983-10-13 1984-10-12 Hypochlorite treatment of chemical paper pulps
JP59212741A JPS6099086A (en) 1983-10-13 1984-10-12 Bleaching of paermaking chemical pulp
CA000465302A CA1269805A (en) 1983-10-13 1984-10-12 Hypochlorite treatment of chemical paper pulp

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2553444A1 FR2553444A1 (en) 1985-04-19
FR2553444B1 true FR2553444B1 (en) 1986-07-18

Family

ID=9293226

Family Applications (1)

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

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) ES536713A0 (en)
FI (1) FI75374C (en)
FR (1) FR2553444B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ229702A (en) * 1989-06-23 1993-03-26 Nz Forest Products Ltd Formerl Bleaching chemical pulp including an activation step followed by an alkaline extraction step with no intervening washing step
WO1998026128A1 (en) * 1996-12-11 1998-06-18 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

Also Published As

Publication number Publication date
AU3421184A (en) 1985-04-18
EP0140804A1 (en) 1985-05-08
FI843975L (en) 1985-04-14
AU565124B2 (en) 1987-09-03
EP0140804B1 (en) 1987-01-07
FI75374C (en) 1988-06-09
CA1269805A (en) 1990-06-05
DE140804T1 (en) 1985-12-05
ES8603607A1 (en) 1985-12-16
JPS6214678B2 (en) 1987-04-03
ATE24745T1 (en) 1987-01-15
FI75374B (en) 1988-02-29
DE3461941D1 (en) 1987-02-12
ES536713A0 (en) 1985-12-16
FR2553444A1 (en) 1985-04-19
FI843975A0 (en) 1984-10-10
JPS6099086A (en) 1985-06-01

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Legal Events

Date Code Title Description
ST Notification of lapse