RU2001040C1 - Process for preparing sodium carboxymethyl cellulose with high substitution index - Google Patents
Process for preparing sodium carboxymethyl cellulose with high substitution indexInfo
- Publication number
- RU2001040C1 RU2001040C1 SU4907811A RU2001040C1 RU 2001040 C1 RU2001040 C1 RU 2001040C1 SU 4907811 A SU4907811 A SU 4907811A RU 2001040 C1 RU2001040 C1 RU 2001040C1
- Authority
- RU
- Russia
- Prior art keywords
- cellulose
- carboxymethyl cellulose
- sodium carboxymethyl
- preparing sodium
- high substitution
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000006467 substitution reaction Methods 0.000 title description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 title 1
- 239000001768 carboxy methyl cellulose Substances 0.000 title 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 title 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 claims 3
- 238000007792 addition Methods 0.000 claims 2
- 239000003960 organic solvent Substances 0.000 claims 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 230000004913 activation Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- NOJNFULGOQGBKB-UHFFFAOYSA-M sodium;3-[3-tert-butylsulfanyl-1-[[4-(6-ethoxypyridin-3-yl)phenyl]methyl]-5-[(5-methylpyridin-2-yl)methoxy]indol-2-yl]-2,2-dimethylpropanoate Chemical compound [Na+].C1=NC(OCC)=CC=C1C(C=C1)=CC=C1CN1C2=CC=C(OCC=3N=CC(C)=CC=3)C=C2C(SC(C)(C)C)=C1CC(C)(C)C([O-])=O NOJNFULGOQGBKB-UHFFFAOYSA-M 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
мол ) в 100 мл воды и перемешивают в течение 60 мин при 20-24°С, к суспензии добавл ют раствор 96,4 i (1 моль) МХУК в 200 мл изопропанола, смесь перемешивают при 25-435°С в течение 5 мин и разогревают реакционную массу до 78°С и выдерживают при этой температуре и интенсивном перемешивании 60 мин.mol) in 100 ml of water and stirred for 60 min at 20-24 ° C, a solution of 96.4 i (1 mol) of MCC in 200 ml of isopropanol was added to the suspension, the mixture was stirred at 25-435 ° C for 5 min and the reaction mass is heated to 78 ° C and maintained at this temperature with vigorous stirring for 60 minutes
Охлаждают реакционную массу до температуры 20-25°С, добавл ют 66,6 г (1,6 мо- л ) твердого гидроксида натри , реакционную массу перемешивают в течение 60 мин и добавл ют 77,12 г (0,8 мол ) МХУК. растворенного в 200 мл ацетона, массу перемешивают в течение 5 мин, разогре- вают до 78°С и выдерживают при этой температуре и интенсивном и перемешивании 60 мин.The reaction mixture is cooled to a temperature of 20-25 ° C, 66.6 g (1.6 mol) of solid sodium hydroxide are added, the reaction mixture is stirred for 60 minutes and 77.12 g (0.8 mol) of MCA are added. . dissolved in 200 ml of acetone, the mass is stirred for 5 minutes, heated to 78 ° C and maintained at this temperature and intensively with stirring for 60 minutes.
Суммарное мол рное соотношение Ц:МХКУ:№ОН:Н20 1:1,8:3.7:7.The total molar ratio C: MKHKU: No. OH: H20 1: 1.8: 3.7: 7.
После завершени реакции продукт отжимают и сушат.After completion of the reaction, the product is squeezed and dried.
Полученные продукт имеет степень замещени 1,43, растворимость 100%, эффективность реакции 79,4%.The resulting product has a degree of substitution of 1.43, solubility of 100%, reaction efficiency of 79.4%.
Примеры 2-8 выполнены аналогично примеру 1, но с другим количеством добавл емых порций реагентов и при других мо- ллрных соотношени х реагентов. Параметры синтеза и характеристика полученных образцов высокозамещенной Na КМЦ приведены в таблице.Examples 2-8 are carried out analogously to example 1, but with a different amount of added portions of reagents and at other molar ratios of the reagents. The synthesis parameters and characteristics of the obtained samples of highly substituted Na CMC are given in the table.
Примеры 9-12 выполнены по известному способу.Examples 9-12 are made by a known method.
(56) Iwata S et al Preparation of(56) Iwata S et al Preparation of
0-(caiboxymethyl cellulose. - Caibohyol. Res. 1985, N 1, v. 145, p. 160-162.0- (caiboxymethyl cellulose. - Caibohyol. Res. 1985, N 1, v. 145, p. 160-162.
Патент США Nfc 4426518, кл. С 08 В 11/00, опублик. 1984.U.S. Patent Nfc 4426518, CL From 08 to 11/00, published. 1984.
Продолжение таблицыTable continuation
Продолжение таблицыTable continuation
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4907811 RU2001040C1 (en) | 1991-02-04 | 1991-02-04 | Process for preparing sodium carboxymethyl cellulose with high substitution index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4907811 RU2001040C1 (en) | 1991-02-04 | 1991-02-04 | Process for preparing sodium carboxymethyl cellulose with high substitution index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2001040C1 true RU2001040C1 (en) | 1993-10-15 |
Family
ID=21558602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4907811 RU2001040C1 (en) | 1991-02-04 | 1991-02-04 | Process for preparing sodium carboxymethyl cellulose with high substitution index |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2001040C1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2204567C2 (en) * | 2000-12-05 | 2003-05-20 | ОАО "Нижегородский завод Октябрь" | Method for preparing carboxymethylcellulose sodium salt |
| RU2209687C2 (en) * | 2001-08-14 | 2003-08-10 | Закрытое акционерное общество "Полицелл" - Дочернее общество Открытого акционерного общества "Полимерсинтез" | Reagent-depressor for floatation of ores of ferrous metals and method of production of this reagent |
| RU2448118C1 (en) * | 2010-11-09 | 2012-04-20 | Учреждение Российской академии наук Институт проблем химико-энергетических технологий Сибирского отделения РАН (ИПХЭТ СО РАН) | Method of producing cellulose from non-wood plant material with native cellulose content of not more than 50% and method of producing carboxymethyl cellulose therefrom |
| RU2570079C2 (en) * | 2014-03-26 | 2015-12-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Алтайский государственный университет" | METHOD FOR CARBOXYMETHYLATION OF CELLULOSE IN N,N-DIMETHYLACETAMIDE - LiCl MEDIUM UNDER IMPACT OF MICROWAVE RADIATION |
-
1991
- 1991-02-04 RU SU4907811 patent/RU2001040C1/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2204567C2 (en) * | 2000-12-05 | 2003-05-20 | ОАО "Нижегородский завод Октябрь" | Method for preparing carboxymethylcellulose sodium salt |
| RU2209687C2 (en) * | 2001-08-14 | 2003-08-10 | Закрытое акционерное общество "Полицелл" - Дочернее общество Открытого акционерного общества "Полимерсинтез" | Reagent-depressor for floatation of ores of ferrous metals and method of production of this reagent |
| RU2448118C1 (en) * | 2010-11-09 | 2012-04-20 | Учреждение Российской академии наук Институт проблем химико-энергетических технологий Сибирского отделения РАН (ИПХЭТ СО РАН) | Method of producing cellulose from non-wood plant material with native cellulose content of not more than 50% and method of producing carboxymethyl cellulose therefrom |
| RU2570079C2 (en) * | 2014-03-26 | 2015-12-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Алтайский государственный университет" | METHOD FOR CARBOXYMETHYLATION OF CELLULOSE IN N,N-DIMETHYLACETAMIDE - LiCl MEDIUM UNDER IMPACT OF MICROWAVE RADIATION |
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