GB705735A - Improvements in the production of viscose - Google Patents

Improvements in the production of viscose

Info

Publication number
GB705735A
GB705735A GB1841/52A GB184152A GB705735A GB 705735 A GB705735 A GB 705735A GB 1841/52 A GB1841/52 A GB 1841/52A GB 184152 A GB184152 A GB 184152A GB 705735 A GB705735 A GB 705735A
Authority
GB
United Kingdom
Prior art keywords
cellulose
caustic soda
steeping
fresh
production
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
GB1841/52A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB705735A publication Critical patent/GB705735A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D01F2/08—Composition of the spinning solution or the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Cellulose xanthate is dissolved in the undialysed steeping liquor, containing hemicelluloses, resulting from the production of alkali cellulose by steeping cellulose in aqueous caustic soda solutions. The steeping liquor is treated to remove suspended solid constituents, e.g. by sedimentation or centrifuging. In an example cellulose is alkalized with caustic soda and the resulting alkali cellulose is pressed to obtain the steeping liquor. Part of this is used, together with fresh caustic soda and water, for alkalizing fresh cellulose. The remainder is clarified by settling and, after its caustic soda content has been adjusted to about 5 per cent., is used for dissolving cellulose xanthate.
GB1841/52A 1951-01-24 1952-01-23 Improvements in the production of viscose Expired GB705735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE705735X 1951-01-24

Publications (1)

Publication Number Publication Date
GB705735A true GB705735A (en) 1954-03-17

Family

ID=6616977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1841/52A Expired GB705735A (en) 1951-01-24 1952-01-23 Improvements in the production of viscose

Country Status (2)

Country Link
FR (1) FR1049201A (en)
GB (1) GB705735A (en)

Also Published As

Publication number Publication date
FR1049201A (en) 1953-12-29

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