FI884123A0 - FOERFARANDE FOER FRAMSTAELLNIG AV PAPPERSMASSA. - Google Patents

FOERFARANDE FOER FRAMSTAELLNIG AV PAPPERSMASSA.

Info

Publication number
FI884123A0
FI884123A0 FI884123A FI884123A FI884123A0 FI 884123 A0 FI884123 A0 FI 884123A0 FI 884123 A FI884123 A FI 884123A FI 884123 A FI884123 A FI 884123A FI 884123 A0 FI884123 A0 FI 884123A0
Authority
FI
Finland
Prior art keywords
framstaellnig
pappersmassa
foerfarande foer
pulp
neutralisation
Prior art date
Application number
FI884123A
Other languages
Finnish (fi)
Other versions
FI884123A (en
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 FI884123A0 publication Critical patent/FI884123A0/en
Publication of FI884123A publication Critical patent/FI884123A/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.
FI884123A 1987-09-08 1988-09-07 FOERFARANDE FOER FRAMSTAELLNIG AV PAPPERSMASSA. FI884123A (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 (2)

Publication Number Publication Date
FI884123A0 true FI884123A0 (en) 1988-09-07
FI884123A FI884123A (en) 1989-03-09

Family

ID=9354710

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884123A FI884123A (en) 1987-09-08 1988-09-07 FOERFARANDE FOER FRAMSTAELLNIG AV PAPPERSMASSA.

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
US5639347A (en) * 1993-03-24 1997-06-17 Ahlstrom Machinery Inc. Method of controlling of metals in a bleach plant, using oxidation
US5509999A (en) * 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
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
ES2021857B3 (en) 1991-11-16
JPH0217678B2 (en) 1990-04-23
BR8804619A (en) 1989-04-18
ZA886622B (en) 1991-05-29
EP0307295A1 (en) 1989-03-15
KR890005346A (en) 1989-05-13
CN1013131B (en) 1991-07-10
PT88435B (en) 1992-10-30
CN1033664A (en) 1989-07-05
MA21393A1 (en) 1989-07-01
AU608054B2 (en) 1991-03-21
NO883968L (en) 1989-03-09
EP0307295B1 (en) 1991-04-03
JPH01207492A (en) 1989-08-21
DE3862265D1 (en) 1991-05-08
FI884123A (en) 1989-03-09
FR2620144A1 (en) 1989-03-10
FR2620144B1 (en) 1989-12-08
AU2196088A (en) 1989-03-09
NZ226060A (en) 1991-02-26
OA08949A (en) 1990-11-30
PT88435A (en) 1989-07-31
GR3001730T3 (en) 1992-11-23
ATE62287T1 (en) 1991-04-15
NO883968D0 (en) 1988-09-07

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: CANADIAN LIQUID AIR LTD / AIR LIQUIDE, CANADA LTEE