GB250219A - Improvements in the process of manufacture of xanthate of cellulose - Google Patents

Improvements in the process of manufacture of xanthate of cellulose

Info

Publication number
GB250219A
GB250219A GB8061/26A GB806126A GB250219A GB 250219 A GB250219 A GB 250219A GB 8061/26 A GB8061/26 A GB 8061/26A GB 806126 A GB806126 A GB 806126A GB 250219 A GB250219 A GB 250219A
Authority
GB
United Kingdom
Prior art keywords
carbon disulphide
solution
cellulose
sulphur
towers
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
GB8061/26A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB250219A publication Critical patent/GB250219A/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)
  • Artificial Filaments (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

250,219. Moro, P. March 31, 1925, [Convention date]. Cellulose xanthates, and processes for making filaments from.-The proportion of carbon disulphide and of caustic alkali is decreased and the time of manufacture reduced, by employing for the preparation of viscose, a solution of sulphur in carbon disulphide, applied to the alkali cellulose either in the liquid state or as vapour or in the condition of fog. Thus, the alkali-cellulose pressed to 225-250 parts for every 100 parts of cellulose, is treated at 30-40‹ C. with 15-25 parts of a solution of sulphur in carbon disulphide; after 12-24 hours the product is dissolved in water or dilute caustic soda solution, and the solution after standing for 24-36 hours at 25- 30‹ C. and subsequent filtration and separation of air, is suitable for spinning. Alternatively, alkalicellulose may be spread on sieves b of towers B through which the vapour of carbon disulphide laden with sulphur is drawn from a tank A by means of a pump C, residual vapours being coilected in a condenser D; or the solution of sulphur in carbon disulphide may be atomized and drawn through the towers in a similar manner, but in this case the towers should be heated to 40- 45‹ C.; the pump serves finally to eliminate the excess of carbon disulphide from the mass.
GB8061/26A 1925-03-31 1926-03-24 Improvements in the process of manufacture of xanthate of cellulose Expired GB250219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR597336T 1925-03-31

Publications (1)

Publication Number Publication Date
GB250219A true GB250219A (en) 1926-11-11

Family

ID=8968207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8061/26A Expired GB250219A (en) 1925-03-31 1926-03-24 Improvements in the process of manufacture of xanthate of cellulose

Country Status (3)

Country Link
BE (1) BE332705A (en)
FR (1) FR597336A (en)
GB (1) GB250219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007006955A1 (en) * 2005-07-12 2007-01-18 Intactus Secure device for transporting and/or storing valuables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007006955A1 (en) * 2005-07-12 2007-01-18 Intactus Secure device for transporting and/or storing valuables
FR2888604A1 (en) * 2005-07-12 2007-01-19 Intactus Sa SECURE DEVICE FOR TRANSPORTING AND / OR STORING VALUES.

Also Published As

Publication number Publication date
FR597336A (en) 1925-11-18
BE332705A (en)

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