CH215082A - Process for bleaching pulp with chlorine gas. - Google Patents

Process for bleaching pulp with chlorine gas.

Info

Publication number: CH215082A
Authority: CH; Switzerland
Prior art keywords: chlorine gas; bleaching pulp; bleaching; pulp; chlorine
Prior art date: 1937-07-23

Application number

Other languages

German (de)

Inventor

Aktiengesellsch Zellstoffwerke

Original Assignee

Aschaffenburger Zellstoffwerke

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.)

1937-07-23

Filing date

1939-09-27

Publication date

1941-05-31

1939-09-27 Application filed by Aschaffenburger Zellstoffwerke filed Critical Aschaffenburger Zellstoffwerke

1941-05-31 Publication of CH215082A publication Critical patent/CH215082A/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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes

Landscapes

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

CH215082D 1937-07-23 1939-09-27 Process for bleaching pulp with chlorine gas. CH215082A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE841027X		1937-07-23
DEA772D DE948299C (en)	1937-07-23	1938-10-28	Process and apparatus for bleaching pulp

Publications (1)

Publication Number	Publication Date
CH215082A true CH215082A (en)	1941-05-31

Family

ID=25760429

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
CH208757D CH208757A (en)	1937-07-23	1938-07-01	Process for bleaching cellulose with chlorine or substances emitting chlorine, in particular chlorine gas.
CH215082D CH215082A (en)	1937-07-23	1939-09-27	Process for bleaching pulp with chlorine gas.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
CH208757D CH208757A (en)	1937-07-23	1938-07-01	Process for bleaching cellulose with chlorine or substances emitting chlorine, in particular chlorine gas.

Country Status (4)

Country	Link
US (1)	US2193301A (en)
CH (2)	CH208757A (en)
DE (1)	DE948299C (en)
FR (2)	FR841027A (en)

1938
- 1938-07-01 CH CH208757D patent/CH208757A/en unknown
- 1938-07-19 US US220116A patent/US2193301A/en not_active Expired - Lifetime
- 1938-07-22 FR FR841027D patent/FR841027A/en not_active Expired
- 1938-10-28 DE DEA772D patent/DE948299C/en not_active Expired
1939
- 1939-09-27 CH CH215082D patent/CH215082A/en unknown
1941
- 1941-05-20 FR FR872300D patent/FR872300A/en not_active Expired

Also Published As

Publication number	Publication date
US2193301A (en)	1940-03-12
CH208757A (en)	1940-02-29
FR841027A (en)	1939-05-09
FR872300A (en)	1942-06-05
DE948299C (en)	1956-08-30

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