FR1287891A - Sulphite pulping process - Google Patents

Sulphite pulping process

Info

Publication number: FR1287891A
Authority: FR; France
Prior art keywords: pulping process; sulphite pulping; sulphite; pulping
Prior art date: 1960-04-27
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

FR41508A

Other languages

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.)

SMITH PAPER MILLS Ltd HOWARD

Original Assignee

SMITH PAPER MILLS Ltd HOWARD

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.)

1960-04-27

Filing date

1961-04-27

Publication date

1962-03-16

1961-04-27 Application filed by SMITH PAPER MILLS Ltd HOWARD filed Critical SMITH PAPER MILLS Ltd HOWARD

1962-03-16 Application granted granted Critical

1962-03-16 Publication of FR1287891A publication Critical patent/FR1287891A/en

Status Expired legal-status Critical Current

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
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/266—Multistage processes the same pulping agent being used in all stages

FR41508A 1960-04-27 1961-04-27 Sulphite pulping process Expired FR1287891A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US24927A US3092535A (en)	1960-04-27	1960-04-27	Sulphite pulping process

Publications (1)

Publication Number	Publication Date
FR1287891A true FR1287891A (en)	1962-03-16

Family

ID=21823076

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR41508A Expired FR1287891A (en)	1960-04-27	1961-04-27	Sulphite pulping process

Country Status (6)

Country	Link
US (1)	US3092535A (en)
AT (1)	AT249496B (en)
DE (1)	DE1300822C2 (en)
FI (1)	FI40850B (en)
FR (1)	FR1287891A (en)
GB (1)	GB987612A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3844879A (en) *	1972-10-30	1974-10-29	Babcock & Wilcox Co	System for removing sodium chloride contaminants from a magnesium base pulping process
FI75615C (en) *	1985-11-29	1991-08-26	Ahlstroem Oy	FOERFARANDE FOER SAENKNING AV SVARTLUTENS VISKOSITET.
US4963231A (en) *	1988-06-13	1990-10-16	Ahlstromforetagen Svenska Ab	Method for evaporation of liquids
CN114851332B (en) *	2022-05-31	2023-02-17	东北林业大学	Preparation method of wood robot with magnetic anisotropy

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1864620A (en) *	1931-02-18	1932-06-28	Brown Co	Process of liberating pulp from raw cellulosic materials
GB400974A (en) *	1932-03-04	1933-11-06	Henry Dreyfus	Improvements in or relating to the production of cellulosic materials or cellulose
GB459531A (en) *	1935-07-10	1937-01-11	Henry Dreyfus	Improvements in or relating to the manufacture of cellulose
US2385955A (en) *	1941-04-08	1945-10-02	George H Tomlinson	Manufacture of sulphite pulp
BE496841A (en) *	1949-07-12
US2730445A (en) *	1952-03-21	1956-01-10	Sivola George	Integrated lignocellulose digestion and recovery process
US3046182A (en) *	1956-01-13	1962-07-24	Smith Paper Mills Ltd Howard	Sulphite pulping process

1960
- 1960-04-27 US US24927A patent/US3092535A/en not_active Expired - Lifetime
1961
- 1961-04-14 GB GB13458/61A patent/GB987612A/en not_active Expired
- 1961-04-24 AT AT319461A patent/AT249496B/en active
- 1961-04-24 DE DE1961S0073644 patent/DE1300822C2/en not_active Expired
- 1961-04-25 FI FI0810/61A patent/FI40850B/fi active
- 1961-04-27 FR FR41508A patent/FR1287891A/en not_active Expired

Also Published As

Publication number	Publication date
FI40850B (en)	1969-02-28
GB987612A (en)	1965-03-31
DE1300822C2 (en)	1975-01-09
DE1300822B (en)	1975-01-09
US3092535A (en)	1963-06-04
AT249496B (en)	1966-09-26

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