FR807159A - Improvements relating to the refining of wood pulp - Google Patents

Improvements relating to the refining of wood pulp

Info

Publication number
FR807159A
FR807159A FR807159DA FR807159A FR 807159 A FR807159 A FR 807159A FR 807159D A FR807159D A FR 807159DA FR 807159 A FR807159 A FR 807159A
Authority
FR
France
Prior art keywords
refining
wood pulp
improvements relating
relating
pulp
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
Application number
Other languages
French (fr)
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.)
International Paper Canada Inc
Original Assignee
International Paper 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 International Paper Canada Inc filed Critical International Paper Canada Inc
Application granted granted Critical
Publication of FR807159A publication Critical patent/FR807159A/en
Expired 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds
FR807159D 1934-07-16 1936-05-16 Improvements relating to the refining of wood pulp Expired FR807159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735438A US2074473A (en) 1934-07-16 1934-07-16 Process of removing coloring matter from wood pulp

Publications (1)

Publication Number Publication Date
FR807159A true FR807159A (en) 1937-01-06

Family

ID=10018795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR807159D Expired FR807159A (en) 1934-07-16 1936-05-16 Improvements relating to the refining of wood pulp

Country Status (5)

Country Link
US (1) US2074473A (en)
BE (1) BE415620A (en)
CH (1) CH191024A (en)
FR (1) FR807159A (en)
GB (1) GB468306A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502330A (en) * 1943-03-01 1950-03-28 Clarence E Libby Washing paper pulp to remove coloring matter
US2716058A (en) * 1950-06-24 1955-08-23 Int Paper Canada Deresination of wood pulp
US2738271A (en) * 1954-04-02 1956-03-13 Fiber Processors Inc Process for degumming ramie fiber
US3174896A (en) * 1961-12-14 1965-03-23 Rayonier Inc Treatment of spent caustic solution
FI121382B (en) * 2002-12-23 2010-10-29 Arizona Chemical B V Additives for boiling wood pulp, as well as the manufacture and use thereof

Also Published As

Publication number Publication date
GB468306A (en) 1937-07-02
BE415620A (en) 1936-06-30
US2074473A (en) 1937-03-23
CH191024A (en) 1937-05-31

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