CH290905A - Process for the production of semi-pulp. - Google Patents

Process for the production of semi-pulp.

Info

Publication number
CH290905A
CH290905A CH290905DA CH290905A CH 290905 A CH290905 A CH 290905A CH 290905D A CH290905D A CH 290905DA CH 290905 A CH290905 A CH 290905A
Authority
CH
Switzerland
Prior art keywords
pulp
semi
production
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Detepa
Original Assignee
Ag Detepa
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 Ag Detepa filed Critical Ag Detepa
Publication of CH290905A publication Critical patent/CH290905A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
CH290905D 1949-07-12 1950-07-10 Process for the production of semi-pulp. CH290905A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT290905X 1949-07-12
IT11049X 1949-10-01
IT230550X 1950-05-23
IT290550X 1950-05-29

Publications (1)

Publication Number Publication Date
CH290905A true CH290905A (en) 1953-05-31

Family

ID=27452646

Family Applications (1)

Application Number Title Priority Date Filing Date
CH290905D CH290905A (en) 1949-07-12 1950-07-10 Process for the production of semi-pulp.

Country Status (5)

Country Link
US (1) US2749241A (en)
BE (1) BE496841A (en)
CH (1) CH290905A (en)
FR (2) FR1021571A (en)
GB (1) GB707982A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034473B (en) * 1954-04-08 1958-07-17 Waldhof Zellstoff Fab Process for the production of bleached semi-pulp

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL90306C (en) * 1951-02-28
US2640774A (en) * 1953-01-27 1953-06-02 Pulp And Papen Res Inst Of Can Production of cellulose pulp
US2906659A (en) * 1953-07-13 1959-09-29 Abitibi Power & Paper Co High yields bisulphite pulping process
US3046182A (en) * 1956-01-13 1962-07-24 Smith Paper Mills Ltd Howard Sulphite pulping process
BE562041A (en) * 1956-11-08
US3013934A (en) * 1958-08-12 1961-12-19 West Virginia Pulp & Paper Co High yield pulp from hardwoods
US3092535A (en) * 1960-04-27 1963-06-04 Smith Paper Mills Ltd Howard Sulphite pulping process
US3088861A (en) * 1960-08-03 1963-05-07 Weyerhaeuser Co Method of manufacturing chemical pulp from lignocellulose material
US3620910A (en) * 1969-06-23 1971-11-16 Us Plywood Champ Papers Inc Process for the preparation of groundwood pulp from a dicotyledonous plant
DE2445523A1 (en) * 1974-09-24 1976-04-01 Waldhof Aschaffenburg Papier METHOD FOR MANUFACTURING PULP
CN112342814B (en) * 2020-11-19 2023-03-31 横县东糖糖业有限公司纸业分公司 Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material
CN112431050B (en) * 2020-11-23 2021-10-26 山东太阳纸业股份有限公司 Method for producing semi-chemical pulp in large scale by utilizing forest waste
CN112726265A (en) * 2020-12-29 2021-04-30 江西理文造纸有限公司 Semi-chemical pulping method for plant fiber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE279411C (en) *
US1507559A (en) * 1923-10-18 1924-09-09 G A Serlachius Aktiebolaget Method of manufacturing white sulphite cellulose from resinous woods
US1931575A (en) * 1929-10-10 1933-10-24 Joaquin Julio De La Roza Sr Method of manufacturing cellulose
US1880042A (en) * 1929-10-26 1932-09-27 Brown Co Acid process of fiber liberation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034473B (en) * 1954-04-08 1958-07-17 Waldhof Zellstoff Fab Process for the production of bleached semi-pulp

Also Published As

Publication number Publication date
BE496841A (en)
FR1021571A (en) 1953-02-20
FR63228E (en) 1955-09-12
US2749241A (en) 1956-06-05
GB707982A (en) 1954-04-28

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