FI72323C - Foerfarande foer reglering av eterifieringsreaktionen hos cellulosa. - Google Patents
Foerfarande foer reglering av eterifieringsreaktionen hos cellulosa. Download PDFInfo
- Publication number
- FI72323C FI72323C FI832735A FI832735A FI72323C FI 72323 C FI72323 C FI 72323C FI 832735 A FI832735 A FI 832735A FI 832735 A FI832735 A FI 832735A FI 72323 C FI72323 C FI 72323C
- Authority
- FI
- Finland
- Prior art keywords
- reaction
- cellulose
- reactor
- rate
- temperature
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title claims description 25
- 239000001913 cellulose Substances 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 25
- 230000008569 process Effects 0.000 title claims description 19
- 238000006266 etherification reaction Methods 0.000 title claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 51
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 16
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 15
- 229940050176 methyl chloride Drugs 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229920003086 cellulose ether Polymers 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- 239000012808 vapor phase Substances 0.000 claims description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 5
- 150000001350 alkyl halides Chemical class 0.000 claims description 5
- 125000002947 alkylene group Chemical group 0.000 claims description 5
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 150000002170 ethers Chemical class 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 claims description 3
- 229960003750 ethyl chloride Drugs 0.000 claims description 3
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000047 product Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 7
- 239000003513 alkali Substances 0.000 description 5
- 238000013459 approach Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 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
- C08B11/00—Preparation of cellulose ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/403,898 US4419510A (en) | 1982-07-30 | 1982-07-30 | Method for controlling cellulose etherification reaction |
| US40389882 | 1982-07-30 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI832735A0 FI832735A0 (fi) | 1983-07-28 |
| FI832735L FI832735L (fi) | 1984-01-31 |
| FI72323B FI72323B (fi) | 1987-01-30 |
| FI72323C true FI72323C (fi) | 1987-05-11 |
Family
ID=23597363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI832735A FI72323C (fi) | 1982-07-30 | 1983-07-28 | Foerfarande foer reglering av eterifieringsreaktionen hos cellulosa. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4419510A (member.php) |
| EP (1) | EP0102505B1 (member.php) |
| JP (1) | JPS5938201A (member.php) |
| CA (1) | CA1195321A (member.php) |
| DE (1) | DE3378369D1 (member.php) |
| FI (1) | FI72323C (member.php) |
| IN (1) | IN159977B (member.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306621A1 (de) * | 1983-02-25 | 1984-08-30 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von celluloseethern mit einem dimethoxyethan enthaltenden dispergierhilfsmittel |
| KR100525252B1 (ko) * | 2003-12-16 | 2005-10-31 | 삼성정밀화학 주식회사 | 미세화된 셀룰로오스에테르의 제조방법 |
| CN102276733B (zh) * | 2011-08-19 | 2013-04-17 | 华南理工大学 | 一种高取代度乙基纤维素的制备方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2492524A (en) * | 1945-09-18 | 1949-12-27 | Hercules Powder Co Ltd | Manufacture of cellulose ethers |
| US2949452A (en) * | 1956-04-30 | 1960-08-16 | Dow Chemical Co | Process for preparing alkyl hydroxyalkyl cellulose ethers and the product obtained thereby |
| US3388082A (en) * | 1965-11-01 | 1968-06-11 | Dow Chemical Co | Novel hydroxypropyl methyl cellulose ethers, a process for preparing the same, and compositions utilizing such ethers |
| FR1489044A (fr) * | 1966-03-08 | 1967-07-21 | Aquitaine Petrole | Procédé et appareil pour l'optimisation d'unités chimiques |
| US3839319A (en) * | 1973-01-26 | 1974-10-01 | Dow Chemical Co | Hydroxypropyl methylcellulose ethers and method of preparation |
| US4015067A (en) * | 1975-08-18 | 1977-03-29 | The Dow Chemical Company | Method of preparing polysaccharide ethers and apparatus |
| US4096325A (en) * | 1976-02-20 | 1978-06-20 | Anheuser-Busch, Incorporated | Methyl hydroxypropyl cellulose ethers |
| US4121922A (en) * | 1976-06-21 | 1978-10-24 | Fierro Esponja, S.A. | Method and apparatus for measuring percentage reduction in a metal ore reduction reactor |
| US4270925A (en) * | 1978-06-24 | 1981-06-02 | The Japan Carlit Co., Ltd. | Method and apparatus for automatically determining chlorine and chlorine dioxide concentrations |
| US4180858A (en) * | 1978-08-30 | 1979-12-25 | Phillips Petroleum Company | Purge control for ammonia synthesis process |
| US4251224A (en) * | 1978-09-19 | 1981-02-17 | Erco Industries Limited | Control system for chlorine dioxide plants |
| US4272481A (en) * | 1979-05-21 | 1981-06-09 | The Dow Chemical Company | System and method for providing a vapor phase sample for analysis |
-
1982
- 1982-07-30 US US06/403,898 patent/US4419510A/en not_active Expired - Fee Related
-
1983
- 1983-07-18 CA CA000432603A patent/CA1195321A/en not_active Expired
- 1983-07-22 IN IN919/CAL/83A patent/IN159977B/en unknown
- 1983-07-26 JP JP58135267A patent/JPS5938201A/ja active Pending
- 1983-07-26 EP EP83107348A patent/EP0102505B1/en not_active Expired
- 1983-07-26 DE DE8383107348T patent/DE3378369D1/de not_active Expired
- 1983-07-28 FI FI832735A patent/FI72323C/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0102505B1 (en) | 1988-11-02 |
| FI832735A0 (fi) | 1983-07-28 |
| DE3378369D1 (en) | 1988-12-08 |
| EP0102505A2 (en) | 1984-03-14 |
| FI72323B (fi) | 1987-01-30 |
| EP0102505A3 (en) | 1985-05-15 |
| CA1195321A (en) | 1985-10-15 |
| JPS5938201A (ja) | 1984-03-02 |
| IN159977B (member.php) | 1987-06-20 |
| FI832735L (fi) | 1984-01-31 |
| US4419510A (en) | 1983-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: THE DOW CHEMICAL COMPANY |