BE833712A - Procede ameliore de mise en pate au sulfite - Google Patents

Procede ameliore de mise en pate au sulfite

Info

Publication number
BE833712A
BE833712A BE160287A BE160287A BE833712A BE 833712 A BE833712 A BE 833712A BE 160287 A BE160287 A BE 160287A BE 160287 A BE160287 A BE 160287A BE 833712 A BE833712 A BE 833712A
Authority
BE
Belgium
Prior art keywords
improved
paste process
sulphite
sulphite paste
paste
Prior art date
Application number
BE160287A
Other languages
English (en)
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 filed Critical
Publication of BE833712A publication Critical patent/BE833712A/fr

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/266—Multistage processes the same pulping agent being used in all stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/02—Chip soaking
BE160287A 1974-09-24 1975-09-23 Procede ameliore de mise en pate au sulfite BE833712A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742445523 DE2445523A1 (de) 1974-09-24 1974-09-24 Verfahren zur herstellung von zellstoff

Publications (1)

Publication Number Publication Date
BE833712A true BE833712A (fr) 1976-01-16

Family

ID=5926572

Family Applications (1)

Application Number Title Priority Date Filing Date
BE160287A BE833712A (fr) 1974-09-24 1975-09-23 Procede ameliore de mise en pate au sulfite

Country Status (14)

Country Link
US (1) US4141787A (fr)
AT (1) AT351358B (fr)
BE (1) BE833712A (fr)
DE (1) DE2445523A1 (fr)
DK (1) DK141450C (fr)
FI (1) FI59629C (fr)
FR (1) FR2286233A1 (fr)
GB (1) GB1527607A (fr)
IE (1) IE42219B1 (fr)
IT (1) IT1056128B (fr)
LU (1) LU73439A1 (fr)
NL (1) NL7511238A (fr)
NO (1) NO147390C (fr)
SE (1) SE421713B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307660C1 (de) * 1993-03-11 1994-08-04 Feldmuehle Ag Stora Herstellung chemo-mechanischer und/oder chemo-thermo-mechanischer Holzstoffe
PT101999B (pt) * 1997-04-28 2003-09-30 Joao Manuel Almeida Oliveira B Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio
CN112726252B (zh) * 2020-11-30 2022-11-25 山东华泰纸业股份有限公司 一种造纸厂废渣的综合利用方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564738C (de) * 1931-01-09 1932-11-23 Patentaktiebolaget Groendal Ra Verfahren zur Herstellung von Sulfitzellstoff
US2192239A (en) * 1937-12-07 1940-03-05 Weyerhaeuser Timber Co Process of digesting wood or other ligno-cellulose materials
BE496841A (fr) * 1949-07-12
US2859108A (en) * 1953-05-27 1958-11-04 Rosenblads Patenter Ab Method for preparing digestion acid for digestion of sulphite
US3046182A (en) * 1956-01-13 1962-07-24 Smith Paper Mills Ltd Howard Sulphite pulping process
US3067086A (en) * 1959-09-15 1962-12-04 Columbia Cellulose Company Ltd Pulping process
DE1198666B (de) * 1961-10-20 1965-08-12 Metallgesellschaft Ag Verfahren zur Erzeugung von Zellstoff
US3383277A (en) * 1967-02-06 1968-05-14 Scott Paper Co Two-stage pulping process with an isothermal first stage

Also Published As

Publication number Publication date
IE42219L (en) 1976-03-24
DK141450C (da) 1980-09-29
ATA728875A (de) 1978-12-15
DE2445523A1 (de) 1976-04-01
IE42219B1 (en) 1980-07-02
DK425975A (da) 1976-03-25
NO147390C (no) 1983-03-30
FR2286233A1 (fr) 1976-04-23
IT1056128B (it) 1982-01-30
DK141450B (da) 1980-03-17
NO753228L (fr) 1976-03-25
NO147390B (no) 1982-12-20
FI59629C (fi) 1981-09-10
FR2286233B1 (fr) 1981-04-30
NL7511238A (nl) 1976-03-26
FI752659A (fr) 1976-03-25
AT351358B (de) 1979-07-25
SE7510677L (sv) 1976-03-25
FI59629B (fi) 1981-05-29
LU73439A1 (fr) 1976-04-13
US4141787A (en) 1979-02-27
SE421713B (sv) 1982-01-25
GB1527607A (en) 1978-10-04

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: PWA GRAFISCHE PAPIERE G.M.B.H.

Effective date: 19910930