OA08949A - Pulp manufacturing process - Google Patents

Pulp manufacturing process

Info

Publication number
OA08949A
OA08949A OA59425A OA59425A OA08949A OA 08949 A OA08949 A OA 08949A OA 59425 A OA59425 A OA 59425A OA 59425 A OA59425 A OA 59425A OA 08949 A OA08949 A OA 08949A
Authority
OA
OAPI
Prior art keywords
manufacturing process
pulp
pulp manufacturing
neutralisation
purification
Prior art date
Application number
OA59425A
Other languages
French (fr)
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 OA08949A publication Critical patent/OA08949A/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

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.
OA59425A 1987-09-08 1988-09-08 Pulp manufacturing process OA08949A (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
OA08949A true OA08949A (en) 1990-11-30

Family

ID=9354710

Family Applications (1)

Application Number Title Priority Date Filing Date
OA59425A OA08949A (en) 1987-09-08 1988-09-08 Pulp manufacturing process

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) FI884123L (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 Procedure for preventing the proliferation of microbes
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
FR2620144A1 (en) 1989-03-10
AU2196088A (en) 1989-03-09
FR2620144B1 (en) 1989-12-08
ZA886622B (en) 1991-05-29
PT88435B (en) 1992-10-30
GR3001730T3 (en) 1992-11-23
FI884123A7 (en) 1989-03-09
FI884123A0 (en) 1988-09-07
EP0307295B1 (en) 1991-04-03
BR8804619A (en) 1989-04-18
FI884123L (en) 1989-03-09
JPH0217678B2 (en) 1990-04-23
NO883968L (en) 1989-03-09
ATE62287T1 (en) 1991-04-15
NO883968D0 (en) 1988-09-07
MA21393A1 (en) 1989-07-01
ES2021857B3 (en) 1991-11-16
JPH01207492A (en) 1989-08-21
DE3862265D1 (en) 1991-05-08
PT88435A (en) 1989-07-31
AU608054B2 (en) 1991-03-21
CN1013131B (en) 1991-07-10
NZ226060A (en) 1991-02-26
KR890005346A (en) 1989-05-13
EP0307295A1 (en) 1989-03-15
CN1033664A (en) 1989-07-05

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