ES2021857B3 - MANUFACTURING PROCESS OF BLEACHED PAPER PULP THAT CARRIES A TREATMENT WITH CARBONIC ACID AFTER BLEACHING - Google Patents

MANUFACTURING PROCESS OF BLEACHED PAPER PULP THAT CARRIES A TREATMENT WITH CARBONIC ACID AFTER BLEACHING

Info

Publication number
ES2021857B3
ES2021857B3 ES88402223T ES88402223T ES2021857B3 ES 2021857 B3 ES2021857 B3 ES 2021857B3 ES 88402223 T ES88402223 T ES 88402223T ES 88402223 T ES88402223 T ES 88402223T ES 2021857 B3 ES2021857 B3 ES 2021857B3
Authority
ES
Spain
Prior art keywords
treatment
carbonic acid
bleaching
paper pulp
carries
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 - Lifetime
Application number
ES88402223T
Other languages
Spanish (es)
Inventor
Raymond Lachapelle
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.)
Air Liquide Canada Inc
Original Assignee
Air Liquide Canada Inc
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 Air Liquide Canada Inc filed Critical Air Liquide Canada Inc
Application granted granted Critical
Publication of ES2021857B3 publication Critical patent/ES2021857B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

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.
ES88402223T 1987-09-08 1988-09-05 MANUFACTURING PROCESS OF BLEACHED PAPER PULP THAT CARRIES A TREATMENT WITH CARBONIC ACID AFTER BLEACHING Expired - Lifetime ES2021857B3 (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
ES2021857B3 true ES2021857B3 (en) 1991-11-16

Family

ID=9354710

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88402223T Expired - Lifetime ES2021857B3 (en) 1987-09-08 1988-09-05 MANUFACTURING PROCESS OF BLEACHED PAPER PULP THAT CARRIES A TREATMENT WITH CARBONIC ACID 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
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
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
FI884123A0 (en) 1988-09-07
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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