CH190734A - Process for cleaning wood pulp. - Google Patents

Process for cleaning wood pulp.

Info

Publication number: CH190734A
Authority: CH; Switzerland
Prior art keywords: wood pulp; cleaning wood; cleaning; pulp; wood
Prior art date: 1936-05-09

Application number

Other languages

German (de)

Inventor

Company Canadian Interna Paper

Original Assignee

Int Paper Canada

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.)

1936-05-09

Filing date

1936-05-30

Publication date

1937-05-15

1936-05-30 Application filed by Int Paper Canada filed Critical Int Paper Canada

1937-05-15 Publication of CH190734A publication Critical patent/CH190734A/en

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
- D21C9/083—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 inorganic compounds

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

CH190734D 1936-05-09 1936-05-30 Process for cleaning wood pulp. CH190734A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB1320936A GB462871A (en)	1936-05-09	1936-05-09	Improvements in or relating to the refining of wood pulp

Publications (1)

Publication Number	Publication Date
CH190734A true CH190734A (en)	1937-05-15

Family

ID=10018815

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH190734D CH190734A (en)	1936-05-09	1936-05-30	Process for cleaning wood pulp.

Country Status (5)

Country	Link
BE (1)	BE415619A (en)
CH (1)	CH190734A (en)
FR (1)	FR806539A (en)
GB (1)	GB462871A (en)
NL (1)	NL45057C (en)

1936
- 1936-05-09 GB GB1320936A patent/GB462871A/en not_active Expired
- 1936-05-14 NL NL77801A patent/NL45057C/xx active
- 1936-05-16 FR FR806539D patent/FR806539A/en not_active Expired
- 1936-05-19 BE BE415619D patent/BE415619A/xx unknown
- 1936-05-30 CH CH190734D patent/CH190734A/en unknown

Also Published As

Publication number	Publication date
FR806539A (en)	1936-12-18
BE415619A (en)	1936-06-30
NL45057C (en)	1939-02-17
GB462871A (en)	1937-03-17

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