CH552716A - Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques. - Google Patents

Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques.

Info

Publication number: CH552716A
Authority: CH; Switzerland
Prior art keywords: ligno; raw materials; cellulosic raw; obtaining cellulose; cellulose
Prior art date: 1972-03-06

Application number

CH323372A

Other languages

English (en)

Original Assignee

Promotion Et D Exploit Ind De

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.)

1972-03-06

Filing date

1972-03-06

Publication date

1974-08-15

1972-03-06 Application filed by Promotion Et D Exploit Ind De filed Critical Promotion Et D Exploit Ind De

1972-03-06 Priority to CH323372A priority Critical patent/CH552716A/fr

1973-03-02 Priority to FR7307579A priority patent/FR2174949B1/fr

1973-03-02 Priority to DE2310547A priority patent/DE2310547C3/de

1973-03-05 Priority to AT193373A priority patent/AT330568B/de

1973-03-05 Priority to US05/337,858 priority patent/US3932207A/en

1973-03-05 Priority to CA165,238A priority patent/CA987312A/en

1973-03-06 Priority to SE7303032A priority patent/SE386216B/xx

1973-03-06 Priority to GB1075273A priority patent/GB1386541A/en

1973-03-07 Priority to BR731663A priority patent/BR7301663D0/pt

1974-08-15 Publication of CH552716A publication Critical patent/CH552716A/fr

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
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment

CH323372A 1972-03-06 1972-03-06 Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques. CH552716A (fr)

Priority Applications (9)

Application Number	Priority Date	Filing Date	Title
CH323372A CH552716A (fr)	1972-03-06	1972-03-06	Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques.
FR7307579A FR2174949B1 (fr)	1972-03-06	1973-03-02
DE2310547A DE2310547C3 (de)	1972-03-06	1973-03-02	Verfahren zur Herstellung von Cellulose aus Lignocellulose-Ausgangsstof fen
AT193373A AT330568B (de)	1972-03-06	1973-03-05	Verfahren zur herstellung von cellulose aus lignocellulose-ausgangsstoffen
US05/337,858 US3932207A (en)	1972-03-06	1973-03-05	Process for obtaining cellulose from ligno-cellulosic raw materials
CA165,238A CA987312A (en)	1972-03-06	1973-03-05	Process for obtaining cellulose from ligno-cellulosic raw materials
SE7303032A SE386216B (sv)	1972-03-06	1973-03-06	Forfarande for framstellning av cellulosamassa ur lignocellulosahaltiga utgangsmaterial
GB1075273A GB1386541A (en)	1972-03-06	1973-03-06	Process for obtaining cellulose from lignocellulosic raw materials
BR731663A BR7301663D0 (pt)	1972-03-06	1973-03-07	Processo de producao de celulose de materias primas de lignocelulose

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH323372A CH552716A (fr)	1972-03-06	1972-03-06	Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques.

Publications (1)

Publication Number	Publication Date
CH552716A true CH552716A (fr)	1974-08-15

Family

ID=4251528

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH323372A CH552716A (fr)	1972-03-06	1972-03-06	Procede d'obtention de la cellulose a partir de matieres premieres ligno-cellulosiques.

Country Status (9)

Country	Link
US (1)	US3932207A (fr)
AT (1)	AT330568B (fr)
BR (1)	BR7301663D0 (fr)
CA (1)	CA987312A (fr)
CH (1)	CH552716A (fr)
DE (1)	DE2310547C3 (fr)
FR (1)	FR2174949B1 (fr)
GB (1)	GB1386541A (fr)
SE (1)	SE386216B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI75615C (fi) *	1985-11-29	1991-08-26	Ahlstroem Oy	Foerfarande foer saenkning av svartlutens viskositet.
US5730837A (en) *	1994-12-02	1998-03-24	Midwest Research Institute	Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars
CA2452145A1 (fr) *	2003-06-03	2004-12-03	David Tarasenko	Methode de production de pate et de lignine
US7771565B2 (en) *	2006-02-21	2010-08-10	Packaging Corporation Of America	Method of pre-treating woodchips prior to mechanical pulping
GB0821419D0 (en)	2008-11-24	2008-12-31	Bio Sep Ltd	Processing of biomass
CA2745466C (fr) *	2008-12-08	2013-04-09	Fpinnovations	Rendement de mise en pate alcaline accru pour bois de resineux avec des ions metalliques
US10266852B2 (en)	2013-12-06	2019-04-23	Alliance For Sustainable Energy, Llc	Lignin conversion to fuels, chemicals and materials
US10017792B2 (en)	2014-07-18	2018-07-10	Alliance For Sustainable Energy, Llc	Biomass conversion to fuels and chemicals
US11136601B2 (en)	2018-08-02	2021-10-05	Alliance For Sustainable Energy, Llc	Conversion of S-lignin compounds to useful intermediates

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1790838A (en) *		1931-02-03		of berlin
US1362723A (en) *	1917-03-26	1920-12-21	Marr Robert Athelstan	Process of producing textile fibers
GB416549A (en) *	1933-03-07	1934-09-07	Henry Dreyfus	Improvements in the manufacture of cellulose and lignocellulosic materials
US2068151A (en) *	1934-11-05	1937-01-19	Du Pont	Paper manufacture
US2308564A (en) *	1938-05-13	1943-01-19	Ralph H Mckee	Recovery of cellulose and lignin from wood
US2753309A (en) *	1951-10-27	1956-07-03	Pioneer Chemical Works Inc	Defoaming agents
US3338943A (en) *	1963-05-13	1967-08-29	Dow Corning	Aminoorganosiloxane-carboxyorganosiloxane copolymers
US3448002A (en) *	1964-06-20	1969-06-03	Domtar Ltd	Pulping process

1972
- 1972-03-06 CH CH323372A patent/CH552716A/fr not_active IP Right Cessation
1973
- 1973-03-02 FR FR7307579A patent/FR2174949B1/fr not_active Expired
- 1973-03-02 DE DE2310547A patent/DE2310547C3/de not_active Expired
- 1973-03-05 CA CA165,238A patent/CA987312A/en not_active Expired
- 1973-03-05 US US05/337,858 patent/US3932207A/en not_active Expired - Lifetime
- 1973-03-05 AT AT193373A patent/AT330568B/de not_active IP Right Cessation
- 1973-03-06 GB GB1075273A patent/GB1386541A/en not_active Expired
- 1973-03-06 SE SE7303032A patent/SE386216B/xx unknown
- 1973-03-07 BR BR731663A patent/BR7301663D0/pt unknown

Also Published As

Publication number	Publication date
US3932207A (en)	1976-01-13
SE386216B (sv)	1976-08-02
DE2310547B2 (de)	1975-02-06
CA987312A (en)	1976-04-13
FR2174949B1 (fr)	1975-10-31
GB1386541A (en)	1975-03-05
DE2310547A1 (de)	1973-09-20
DE2310547C3 (de)	1975-09-11
FR2174949A1 (fr)	1973-10-19
AT330568B (de)	1976-07-12
BR7301663D0 (pt)	1974-05-16
ATA193373A (de)	1975-09-15

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Legal Events

Date	Code	Title	Description
1978-11-15	PL	Patent ceased