GR3001730T3 - Process for producing a bleached paper pulp comprising a carbon dioxide treatment after bleaching - Google Patents

Process for producing a bleached paper pulp comprising a carbon dioxide treatment after bleaching

Info

Publication number
GR3001730T3
GR3001730T3 GR90401231T GR900401231T GR3001730T3 GR 3001730 T3 GR3001730 T3 GR 3001730T3 GR 90401231 T GR90401231 T GR 90401231T GR 900401231 T GR900401231 T GR 900401231T GR 3001730 T3 GR3001730 T3 GR 3001730T3
Authority
GR
Greece
Prior art keywords
producing
bleaching
paper pulp
carbon dioxide
dioxide treatment
Prior art date
Application number
GR90401231T
Other languages
Greek (el)
Inventor
Raymond Lachapelle
Original Assignee
Liquid Air Canada
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 Liquid Air Canada filed Critical Liquid Air Canada
Publication of GR3001730T3 publication Critical patent/GR3001730T3/en

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

Abstract

Process for producing a paper pulp comprising a stage of H or P treatment just before the purification of the pulp or its transfer to the papermaking machine, where the neutralisation of the bleached pulp is performed with the aid of carbonic acid instead of sulphur dioxide.
GR90401231T 1987-09-08 1991-04-04 Process for producing a bleached paper pulp comprising a carbon dioxide treatment after bleaching GR3001730T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8712451A FR2620144B1 (en) 1987-09-08 1987-09-08 PROCESS FOR THE MANUFACTURE OF BLEACHED PAPER PULP INCLUDING TREATMENT WITH CARBONIC ACID AFTER BLEACHING

Publications (1)

Publication Number Publication Date
GR3001730T3 true GR3001730T3 (en) 1992-11-23

Family

ID=9354710

Family Applications (1)

Application Number Title Priority Date Filing Date
GR90401231T GR3001730T3 (en) 1987-09-08 1991-04-04 Process for producing a bleached paper pulp comprising a carbon dioxide treatment after bleaching

Country Status (18)

Country Link
EP (1) EP0307295B1 (en)
JP (1) JPH01207492A (en)
KR (1) KR890005346A (en)
CN (1) CN1013131B (en)
AT (1) ATE62287T1 (en)
AU (1) AU608054B2 (en)
BR (1) BR8804619A (en)
DE (1) DE3862265D1 (en)
ES (1) ES2021857B3 (en)
FI (1) FI884123A (en)
FR (1) FR2620144B1 (en)
GR (1) GR3001730T3 (en)
MA (1) MA21393A1 (en)
NO (1) NO883968L (en)
NZ (1) NZ226060A (en)
OA (1) OA08949A (en)
PT (1) PT88435B (en)
ZA (1) ZA886622B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9206415D0 (en) * 1992-03-24 1992-05-06 Albright & Wilson Stabilisation of bleach liquors
US5509999A (en) * 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
US5639347A (en) * 1993-03-24 1997-06-17 Ahlstrom Machinery Inc. Method of controlling of metals in a bleach plant, using oxidation
FI110533B (en) * 2000-05-04 2003-02-14 Aga Ab Method for controlling microbial growth
WO2011113119A1 (en) * 2010-03-19 2011-09-22 Fibria Celulose S/A Process for the treatment of cellulose pulps, cellulose pulp thus obtained and use of biopolymer for treating cellulose pulps
CN104032611B (en) * 2014-06-23 2016-04-20 广西大学 A kind of dioxde pulp bleaching process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1993265A (en) * 1933-02-28 1935-03-05 Merrimac Chemical Co Inc Manufacture of paper embodying alkaline earth metal carbonate fillers
FI52876C (en) * 1974-09-03 1978-10-17 Ahlstroem Oy OVERFLOWER FOR CELLULOSE FRAON ALKALIKOK

Also Published As

Publication number Publication date
EP0307295B1 (en) 1991-04-03
CN1013131B (en) 1991-07-10
PT88435A (en) 1989-07-31
AU608054B2 (en) 1991-03-21
ES2021857B3 (en) 1991-11-16
JPH0217678B2 (en) 1990-04-23
NO883968L (en) 1989-03-09
DE3862265D1 (en) 1991-05-08
OA08949A (en) 1990-11-30
KR890005346A (en) 1989-05-13
FR2620144B1 (en) 1989-12-08
NO883968D0 (en) 1988-09-07
ATE62287T1 (en) 1991-04-15
MA21393A1 (en) 1989-07-01
FI884123A0 (en) 1988-09-07
ZA886622B (en) 1991-05-29
FR2620144A1 (en) 1989-03-10
PT88435B (en) 1992-10-30
JPH01207492A (en) 1989-08-21
AU2196088A (en) 1989-03-09
NZ226060A (en) 1991-02-26
FI884123A (en) 1989-03-09
CN1033664A (en) 1989-07-05
BR8804619A (en) 1989-04-18
EP0307295A1 (en) 1989-03-15

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