FR1601439A - Recovery of cellulose from bagasse to make fibres and - filaments - Google Patents

Recovery of cellulose from bagasse to make fibres and - filaments

Info

Publication number
FR1601439A
FR1601439A FR1601439DA FR1601439A FR 1601439 A FR1601439 A FR 1601439A FR 1601439D A FR1601439D A FR 1601439DA FR 1601439 A FR1601439 A FR 1601439A
Authority
FR
France
Prior art keywords
cellulose
bagasse
filaments
recovery
fibres
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1601439A publication Critical patent/FR1601439A/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)

Abstract

RECOVERY OF CELLULOSE FROM BAGASSE FOR THE PRODUCTION OF FIBRES AND FILAMENTS. G2B. Comprising the usual operations of prehydrolysis, cooling in an alkaline medium of the sulphate type, washing, classifying, bleaching, washing and classifying again, and finally draining the water from the cellulose on a paper-making machine, is characterised by the following features. When the prehydrolysis is carried out with saturated steam, the ratio of the material to water is 1:1 to 1.2:1.0, when the prehydrolysis is carried out with water the ratio is 2.5:1 to 3:1. The cooking is carried out with addition of 22-24% NaOH; the sulphur content of the solution is 15-20%. The product is suitable for the manufacture of fibres by the viscose method.
FR1601439D 1968-10-16 1968-10-21 Recovery of cellulose from bagasse to make fibres and - filaments Expired FR1601439A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19681803453 DE1803453A1 (en) 1968-10-16 1968-10-16 Process for the production of cellulose from bagasse for the production of fibers and threads
FR170640 1968-10-21
GB5057368 1968-10-24

Publications (1)

Publication Number Publication Date
FR1601439A true FR1601439A (en) 1970-08-24

Family

ID=32965963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1601439D Expired FR1601439A (en) 1968-10-16 1968-10-21 Recovery of cellulose from bagasse to make fibres and - filaments

Country Status (2)

Country Link
DE (1) DE1803453A1 (en)
FR (1) FR1601439A (en)

Also Published As

Publication number Publication date
DE1803453A1 (en) 1970-05-21

Similar Documents

Publication Publication Date Title
GB1071706A (en) A method of making paper which dissolves or rapidly disintegrates in water
ES8704569A1 (en) Sulphite pulping process for preparing cellulose pulp from lignocellulosic materials with recovery of the pulping chemicals.
GB1325505A (en) Method for reclaiming pulp from waste papers
GB1379295A (en) Composition and method for reclaiming pulp from waste papers
FR1601439A (en) Recovery of cellulose from bagasse to make fibres and - filaments
US3042575A (en) Methods of improving the yield in alkaline digestion of cellulosic material
ES294160A1 (en) Continuous digesting of cellulosic fibrous material at decreasing pressure with mechanical defibering therebetween
ES409498A1 (en) Alkaline digestion of a mixture of cotton linters and fibrous vegetable material and product thereof
ES425982A1 (en) Process for the production of fermentation polysaccharides having a non-fibrous structure
ES421470A1 (en) Removal of sodium chloride from pulping operations
US2041958A (en) Refining cellulose fiber for conversion into cellulose derivatives
ES325710A1 (en) A procedure for the production of opaque stretching effects, like thread and similar, on textile bands (Machine-translation by Google Translate, not legally binding)
US2407909A (en) Purification of crude cellulosic material
GB1474219A (en) Method for obtaining fibre from vegetable material containing cellulose fibre and lignin
US3598695A (en) Production of wood pulp by an ammonium sulfite and/or bisulfite process combined with a sulfate process
GB1229269A (en)
GB800199A (en) A process of treating regenerated cellulosic articles to prevent discolouration
GB1161539A (en) Process for Improving Cellulose Textile Material by Alkaline Treatment
US3055794A (en) Method of deresinifying cellulose derived from wood rich in resin
FR2177877A1 (en) Bleaching cellulose pulp - with impregnation of pulp prior to bleaching to improve props
GB758766A (en) Process for the production of pulp from bagasse
GB1119546A (en) Improved method of treating fibrous material
GB1042151A (en) Production of sulphate cellulose
GB817809A (en) Improvements in process for producing hydroxy-ethyl cellulose in sheet form
CH504478A (en) Wood pulp treatment

Legal Events

Date Code Title Description
ST Notification of lapse