GB568439A - Improvements in the production of cellulose esters - Google Patents
Improvements in the production of cellulose estersInfo
- Publication number
- GB568439A GB568439A GB6181/43A GB618143A GB568439A GB 568439 A GB568439 A GB 568439A GB 6181/43 A GB6181/43 A GB 6181/43A GB 618143 A GB618143 A GB 618143A GB 568439 A GB568439 A GB 568439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- formic
- esterification
- formate
- diluent
- 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
- 229920002678 cellulose Polymers 0.000 title abstract 5
- 239000001913 cellulose Substances 0.000 abstract 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 3
- 239000003085 diluting agent Substances 0.000 abstract 3
- 230000032050 esterification Effects 0.000 abstract 3
- 238000005886 esterification reaction Methods 0.000 abstract 3
- 229920000742 Cotton Polymers 0.000 abstract 2
- 235000011054 acetic acid Nutrition 0.000 abstract 2
- ZMZINYUKVRMNTG-UHFFFAOYSA-N acetic acid;formic acid Chemical compound OC=O.CC(O)=O ZMZINYUKVRMNTG-UHFFFAOYSA-N 0.000 abstract 2
- 150000001243 acetic acids Chemical class 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 235000019253 formic acid Nutrition 0.000 abstract 2
- 150000004674 formic acids Chemical class 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 abstract 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 2
- 244000025254 Cannabis sativa Species 0.000 abstract 1
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 abstract 1
- ORWKVZNEPHTCQE-UHFFFAOYSA-N acetic formic anhydride Chemical compound CC(=O)OC=O ORWKVZNEPHTCQE-UHFFFAOYSA-N 0.000 abstract 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 abstract 1
- 239000010903 husk Substances 0.000 abstract 1
- 235000011167 hydrochloric acid Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 150000003016 phosphoric acids Chemical class 0.000 abstract 1
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- 239000010902 straw Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 235000005074 zinc chloride Nutrition 0.000 abstract 1
- 239000011592 zinc chloride Substances 0.000 abstract 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
- C08B3/16—Preparation of mixed organic cellulose esters, e.g. cellulose aceto-formate or cellulose aceto-propionate
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)
Abstract
Cellulose acetate-formate is produced by mixing cellulose with formic-acetic anhydride and then carrying out the esterification in the presence of an esterification catalyst and a diluent. The cellulosic material employed, which may be pretreated with formic and/or acetic acids containing a small quantity of sulphuric acid, may be cotton, cotton linters, wood pulp, regenerated cellulose, or cellulose obtained from grass, straw, husks, etc. Specified catalysts are sulphuric, hydrochloric and phosphoric acids, phosphorus pentoxide and zinc chloride. Specified diluents which may be solvents or non-solvents for the cellulose acetate-formate, are formic and/or acetic acids, benzene, toluene, and carbon tetrachloride. By varying the proportions of diluent and catalyst employed, esters of varying acetyl and formyl contents are produced. In the examples, the esterification continues for 7 or 24 hours during which time a peak temperature of 30 DEG C. is attained. Water is added to the mixture and the ester is precipitated, washed and dried.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US568439XA | 1942-04-23 | 1942-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB568439A true GB568439A (en) | 1945-04-05 |
Family
ID=22006903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6181/43A Expired GB568439A (en) | 1942-04-23 | 1943-04-17 | Improvements in the production of cellulose esters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB568439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480090A (en) * | 1983-10-21 | 1984-10-30 | Eastman Kodak Company | Process for esterification of cellulose using as the catalyst the combination of sulfuric acid, phosphoric acid and a hindered aliphatic alcohol |
| US7879994B2 (en) | 2003-11-28 | 2011-02-01 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
-
1943
- 1943-04-17 GB GB6181/43A patent/GB568439A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480090A (en) * | 1983-10-21 | 1984-10-30 | Eastman Kodak Company | Process for esterification of cellulose using as the catalyst the combination of sulfuric acid, phosphoric acid and a hindered aliphatic alcohol |
| US7879994B2 (en) | 2003-11-28 | 2011-02-01 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| JP2012233205A (en) * | 2003-11-28 | 2012-11-29 | Eastman Chemical Co | Cellulose interpolymer and method of oxidation |
| EP2532684A2 (en) | 2003-11-28 | 2012-12-12 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| EP2532683A2 (en) | 2003-11-28 | 2012-12-12 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| US8816066B2 (en) | 2003-11-28 | 2014-08-26 | Eastman Chemical Company | Cellulose interpolymers and methods of oxidation |
| US9040683B2 (en) | 2003-11-28 | 2015-05-26 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| US9040685B2 (en) | 2003-11-28 | 2015-05-26 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| US9040684B2 (en) | 2003-11-28 | 2015-05-26 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| US9150665B2 (en) | 2003-11-28 | 2015-10-06 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
| US9243072B2 (en) | 2003-11-28 | 2016-01-26 | Eastman Chemical Company | Cellulose interpolymers and method of oxidation |
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