DE258879C - - Google Patents
Info
- Publication number
- DE258879C DE258879C DENDAT258879D DE258879DA DE258879C DE 258879 C DE258879 C DE 258879C DE NDAT258879 D DENDAT258879 D DE NDAT258879D DE 258879D A DE258879D A DE 258879DA DE 258879 C DE258879 C DE 258879C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- anhydride
- cotton
- vapors
- acetyl
- 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.)
- Active
Links
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002301 Cellulose acetate Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 11
- 229920000742 Cotton Polymers 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 150000008064 anhydrides Chemical class 0.000 description 8
- 235000010980 cellulose Nutrition 0.000 description 8
- 229940081735 acetylcellulose Drugs 0.000 description 7
- 229960000583 Acetic Acid Drugs 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000012362 glacial acetic acid Substances 0.000 description 4
- 238000006640 acetylation reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000004677 hydrates Chemical class 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-Tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- WETWJCDKMRHUPV-UHFFFAOYSA-N Acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 239000012345 acetylating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-M triacetate(1-) Chemical compound CC(=O)CC(=O)CC([O-])=O ILJSQTXMGCGYMG-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE258879C true DE258879C (US07166745-20070123-C00016.png) |
Family
ID=516660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT258879D Active DE258879C (US07166745-20070123-C00016.png) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE258879C (US07166745-20070123-C00016.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1054083B (de) * | 1954-01-04 | 1959-04-02 | Takeo Takagi | Verfahren zur Herstellung von hochveresterten Celluloseacetatfasern |
-
0
- DE DENDAT258879D patent/DE258879C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1054083B (de) * | 1954-01-04 | 1959-04-02 | Takeo Takagi | Verfahren zur Herstellung von hochveresterten Celluloseacetatfasern |
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