发明名称 |
METHOD OF PRODUCING SULPHATED ARABINOGALACTAN DERIVATIVES |
摘要 |
FIELD: chemistry.SUBSTANCE: method involves reacting arabinogalactan with a sulphating complex while continuously stirring and heating. The sulphating complex used is a sulphamic acid-urea complex. Said complex is obtained by mixing equimolar amounts of sulphamic acid and urea in dioxane. Sulphation of arabinogalactan is carried out at temperature of 80-95°C and hydromodulus of 1:10 for 2.5-3.5 hours. The ratio of arabinogalactan to the sulphating complex is 1:13-25 (g:mmol). The product is separated by neutralisation and precipitation in ethyl alcohol.EFFECT: invention widens the range of sulphating reagents for arabinogalactan, simplifies the method and increases cost-effectiveness of the method.6 ex, 1 tbl |
申请公布号 |
RU2521649(C1) |
申请公布日期 |
2014.07.10 |
申请号 |
RU20130109669 |
申请日期 |
2013.03.04 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KHIMII I KHIMICHESKOJ TEKHNOLOGII SIBIRSKOGO OTDELENIJA ROSSIJSKOJ AKADEMII NAUK (IKHKHT SO RAN) |
发明人 |
VASIL'EVA NATAL'JA JUR'EVNA;SKVORTSOVA GALINA PAVLOVNA;LEVDANSKIJ ALEKSANDR VLADIMIROVICH;KUZNETSOV BORIS NIKOLAEVICH;KOROL'KOVA IRINA VLADIMIROVNA;KAZACHENKO ALEKSANDR SERGEEVICH |
分类号 |
C08B37/00 |
主分类号 |
C08B37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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