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CH300957A - Process for the production of semi-pulp. - Google Patents

Process for the production of semi-pulp.

Info

Publication number
CH300957A
CH300957A CH300957DA CH300957A CH 300957 A CH300957 A CH 300957A CH 300957D A CH300957D A CH 300957DA CH 300957 A CH300957 A CH 300957A
Authority
CH
Switzerland
Prior art keywords
pulp
semi
production
Prior art date
Application number
Other languages
German (de)
Inventor
Waldhof Zellstoffabrik
Original Assignee
Waldhof Zellstoff Fab
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 Zellstoff Fab filed Critical Waldhof Zellstoff Fab
Publication of CH300957A publication Critical patent/CH300957A/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
CH300957D 1951-02-28 1951-08-24 Process for the production of semi-pulp. CH300957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE300957X 1951-02-28

Publications (1)

Publication Number Publication Date
CH300957A true CH300957A (en) 1954-08-31

Family

ID=6097037

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300957D CH300957A (en) 1951-02-28 1951-08-24 Process for the production of semi-pulp.

Country Status (6)

Country Link
US (1) US2851355A (en)
BE (1) BE504423A (en)
CH (1) CH300957A (en)
FR (1) FR1062445A (en)
GB (1) GB736300A (en)
NL (1) NL90306C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906659A (en) * 1953-07-13 1959-09-29 Abitibi Power & Paper Co High yields bisulphite pulping process
US3013931A (en) * 1957-02-01 1961-12-19 Hawaiian Dev Company Ltd Printing paper and process of making the same
US3046184A (en) * 1958-12-31 1962-07-24 Kimberly Clark Co Manufacture of cellulosic products
US3088861A (en) * 1960-08-03 1963-05-07 Weyerhaeuser Co Method of manufacturing chemical pulp from lignocellulose material
US3069310A (en) * 1960-10-14 1962-12-18 Hammermill Paper Co Semichemical pulping process for soft woods
US3448003A (en) * 1966-01-03 1969-06-03 Dow Chemical Co On-stream cleaning of wood chip digesters using chelating agents
SE355614B (en) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab
WO2013165425A1 (en) * 2012-05-03 2013-11-07 Empire Technology Development Llc Phosphonate-substituted lignin as a flame retardant
CN107429484A (en) * 2015-03-11 2017-12-01 安德里兹有限公司 Method and system for pulping lignocellulosic material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1244525A (en) * 1917-08-02 1917-10-30 Tsuneya Marusawa Process of manufacturing paper-pulp.
US1566118A (en) * 1925-03-21 1925-12-15 Citizens Of The United States Method for the prevention of corrosion in steel digesters
US1792510A (en) * 1925-07-01 1931-02-17 Brown Co Kraft-simulating pulp and process of producing same
US1859848A (en) * 1926-09-03 1932-05-24 Arthur M Hyde Production of fibrous pulp from vegetable material
US1891337A (en) * 1930-01-09 1932-12-20 Du Pont Process of producing cellulose
DE564738C (en) * 1931-01-09 1932-11-23 Patentaktiebolaget Groendal Ra Process for the production of sulphite pulp
GB400974A (en) * 1932-03-04 1933-11-06 Henry Dreyfus Improvements in or relating to the production of cellulosic materials or cellulose
US2564028A (en) * 1946-01-17 1951-08-14 Rayonier Inc Wood pulp digestion
BE496841A (en) * 1949-07-12

Also Published As

Publication number Publication date
US2851355A (en) 1958-09-09
BE504423A (en)
GB736300A (en) 1955-09-07
FR1062445A (en) 1954-04-23
NL90306C (en)

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