GB734216A - Process for the treatment of ligno-cellulosic fibres - Google Patents

Process for the treatment of ligno-cellulosic fibres

Info

Publication number
GB734216A
GB734216A GB2946/53A GB294653A GB734216A GB 734216 A GB734216 A GB 734216A GB 2946/53 A GB2946/53 A GB 2946/53A GB 294653 A GB294653 A GB 294653A GB 734216 A GB734216 A GB 734216A
Authority
GB
United Kingdom
Prior art keywords
treatment
sulphur dioxide
materials
mass
acid
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
GB2946/53A
Other languages
English (en)
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.)
PROCEL SA
Original Assignee
PROCEL SA
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 PROCEL SA filed Critical PROCEL SA
Publication of GB734216A publication Critical patent/GB734216A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
GB2946/53A 1952-02-15 1953-02-02 Process for the treatment of ligno-cellulosic fibres Expired GB734216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005824X 1952-02-15

Publications (1)

Publication Number Publication Date
GB734216A true GB734216A (en) 1955-07-27

Family

ID=9565170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2946/53A Expired GB734216A (en) 1952-02-15 1953-02-02 Process for the treatment of ligno-cellulosic fibres

Country Status (4)

Country Link
DE (1) DE1005824B (de)
FR (1) FR1052900A (de)
GB (1) GB734216A (de)
NL (1) NL87584C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049390A1 (en) * 1997-04-28 1998-11-05 Almeida Oliveira Baptista Joao A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent
WO2013164598A1 (en) * 2012-05-02 2013-11-07 Innovia Films Limited Process
EP3901367A1 (de) * 2020-04-20 2021-10-27 Scitech-service OY Verfahren zur vorhydrolyse von lignocellulosematerial

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA766073B (en) * 1975-10-24 1977-09-28 D Econimidis Production of pulp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE124556C (de) *
DE237081C (de) * 1909-12-13
DE395119C (de) * 1923-10-11 1924-05-14 Carl G Schwalbe Dr Verfahren zur Vorbehandlung von pflanzlichen Rohstoffen zwecks Erleichterung nachfolgender saurer oder alkalischer Aufschliessung
DE484805C (de) * 1924-11-02 1929-11-11 Leopold Enge Verfahren zum Weichmachen von Holz oder aehnlichen pflanzlichen Faserstoffen
DE744868C (de) * 1940-03-22 1944-01-27 Dr Georg Jayme Verfahren zur Gewinnung von pentosanarmen Zellstoffen aus Pflanzenstoffen
BE447209A (de) * 1941-12-22

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049390A1 (en) * 1997-04-28 1998-11-05 Almeida Oliveira Baptista Joao A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent
WO2013164598A1 (en) * 2012-05-02 2013-11-07 Innovia Films Limited Process
CN104321347A (zh) * 2012-05-02 2015-01-28 伊诺维亚薄膜有限公司 方法
JP2015517582A (ja) * 2012-05-02 2015-06-22 イノヴィア フィルムズ リミテッド 方法
US9493581B2 (en) 2012-05-02 2016-11-15 Innovia Films Limited Process for the manufacture of viscose
EP3901367A1 (de) * 2020-04-20 2021-10-27 Scitech-service OY Verfahren zur vorhydrolyse von lignocellulosematerial
WO2021214387A1 (en) * 2020-04-20 2021-10-28 Scitech-Service Oy Method for prehydrolysis of lignocellulosic material

Also Published As

Publication number Publication date
FR1052900A (fr) 1954-01-28
NL87584C (de)
DE1005824B (de) 1957-04-04

Similar Documents

Publication Publication Date Title
GB427626A (en) Improvements in or relating to the manufacture of cellulose
GB576510A (en) Improvements in or relating to the production of cellulose
GB734216A (en) Process for the treatment of ligno-cellulosic fibres
US1640853A (en) Process of producing pulp having a high percentage of resistant cellulose
US1880043A (en) Production of high grade chemical pulps
US1870650A (en) Chemical modification of cellulose fiber
US3578553A (en) Nitrogen dioxide pulping process
GB815247A (en) Bleaching woob pulps
US1817525A (en) Production of chemical wood pulp
GB710257A (en) Wood pulp
GB1301031A (en) Pulp and a process for the production thereof
GB474305A (en) Improvements in or relating to the manufacture of cellulose from lignocellulosic materials
GB640543A (en) Improvements in or relating to the production of cellulose
US1867593A (en) Process of chemical fiber liberation
US1880047A (en) Pulp refining process
RU2811694C1 (ru) Способ получения волокнистой целлюлозы из пеньки
US2118039A (en) Manufacture of cellulose
US1910613A (en) Preliminary boiling or cooking process for cellulose
GB638496A (en) Process for treating cellulosic raw material in order to obtain valuable products and by-products
GB322763A (en) Method of manufacturing cellulose
GB674079A (en) Improvements in or relating to a process for the production of fibre plates and formed bodies of lignocellulosic materials using the lignin of the lignocellulosic materials as a binding agent
US2536045A (en) Producing alpha cellulsoe from cottonseed hull fibers
GB477842A (en) Improvements in or relating to the manufacture of cellulose from lignin-containing cellulosic materials
US1819003A (en) Multiple-step process of fiber liberation
CA1079009A (en) Method of treating annual vascular plants containing holocellulose and lignin