IT1056128B - Procedimento per la produzione di cellulosa secondo il procedimento al solfito - Google Patents

Procedimento per la produzione di cellulosa secondo il procedimento al solfito

Info

Publication number
IT1056128B
IT1056128B IT51494/75A IT5149475A IT1056128B IT 1056128 B IT1056128 B IT 1056128B IT 51494/75 A IT51494/75 A IT 51494/75A IT 5149475 A IT5149475 A IT 5149475A IT 1056128 B IT1056128 B IT 1056128B
Authority
IT
Italy
Prior art keywords
sulphite
procedure
production according
cellulose production
cellulose
Prior art date
Application number
IT51494/75A
Other languages
English (en)
Inventor
R Schadler
Original Assignee
Waldhof Aschaffenburg Papier
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 Waldhof Aschaffenburg Papier filed Critical Waldhof Aschaffenburg Papier
Application granted granted Critical
Publication of IT1056128B publication Critical patent/IT1056128B/it

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
IT51494/75A 1974-09-24 1975-09-24 Procedimento per la produzione di cellulosa secondo il procedimento al solfito IT1056128B (it)

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
IT1056128B true IT1056128B (it) 1982-01-30

Family

ID=5926572

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51494/75A IT1056128B (it) 1974-09-24 1975-09-24 Procedimento per la produzione di cellulosa secondo il procedimento al solfito

Country Status (14)

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

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 (it) * 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
NO147390B (no) 1982-12-20
FI752659A (it) 1976-03-25
DK141450B (da) 1980-03-17
AT351358B (de) 1979-07-25
SE421713B (sv) 1982-01-25
US4141787A (en) 1979-02-27
IE42219B1 (en) 1980-07-02
NO147390C (no) 1983-03-30
NO753228L (it) 1976-03-25
NL7511238A (nl) 1976-03-26
IE42219L (en) 1976-03-24
FR2286233A1 (fr) 1976-04-23
LU73439A1 (it) 1976-04-13
DE2445523A1 (de) 1976-04-01
DK425975A (da) 1976-03-25
GB1527607A (en) 1978-10-04
FR2286233B1 (it) 1981-04-30
FI59629B (fi) 1981-05-29
BE833712A (fr) 1976-01-16
DK141450C (da) 1980-09-29
ATA728875A (de) 1978-12-15
SE7510677L (sv) 1976-03-25
FI59629C (fi) 1981-09-10

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