GB489768A - Process and apparatus for the uninterrupted dissolution of cellulose xanthate - Google Patents
Process and apparatus for the uninterrupted dissolution of cellulose xanthateInfo
- Publication number
- GB489768A GB489768A GB3186/37A GB318637A GB489768A GB 489768 A GB489768 A GB 489768A GB 3186/37 A GB3186/37 A GB 3186/37A GB 318637 A GB318637 A GB 318637A GB 489768 A GB489768 A GB 489768A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- rollers
- viscose
- equal
- cellulose xanthate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
-
- 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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
<PICT:0489768/IV/1> The continuous dissolution of cellulose xanthate in lye and water to produce viscose is effected in a rotating drum containing two or more rollers arranged end to end and extending substantially from end to end of the drum; the rollers run on the inner cylindrical surface of the drum and at least one of them has a diameter such that it nearly fills the internal cross-section of the drum. In the Figure, a is a rotating drum containing rollers d, d1 and d2. Cellulose xanthate, water and alkali lye are introduced continuously by means of the stationary hopper b and the conveyer worm c so that the liquid level in the drum a is always higher than the hollow trunnion k through which the viscose is discharged. The roller d1 affects the comminution of the pasty lumps of xanthate which tend to float on the surface of the liquid and the discharge of viscose free from lumps is effected by means of the knife-like striker g, fixed to shaft h, which keeps free the narrow passage i formed between the concentric shielding disc e and the end wall f of the drum. The striker g may be stationary or rotatable and there may be more than one passage i with as many strikers g. According to the Provisional Specification, the rotating drum may contain one roller only, whose length is equal to that of the drum, or it may contain several rollers all of equal diameter arranged end to end, whose total length is equal to that of the drum.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204839X | 1937-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489768A true GB489768A (en) | 1938-08-03 |
Family
ID=5783970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3186/37A Expired GB489768A (en) | 1937-01-13 | 1937-02-03 | Process and apparatus for the uninterrupted dissolution of cellulose xanthate |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE425570A (en) |
| CH (1) | CH204839A (en) |
| FR (1) | FR831768A (en) |
| GB (1) | GB489768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2626856A (en) * | 1948-06-22 | 1953-01-27 | American Viscose Corp | Gas-solid extrusion reactor |
-
0
- BE BE425570D patent/BE425570A/xx unknown
-
1937
- 1937-02-03 GB GB3186/37A patent/GB489768A/en not_active Expired
-
1938
- 1938-01-03 CH CH204839D patent/CH204839A/en unknown
- 1938-01-07 FR FR831768D patent/FR831768A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2626856A (en) * | 1948-06-22 | 1953-01-27 | American Viscose Corp | Gas-solid extrusion reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CH204839A (en) | 1939-05-31 |
| FR831768A (en) | 1938-09-14 |
| BE425570A (en) |
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