RU2000129237A - The method of obtaining 1.4: 3,6-Dianhydro-D-Sorbite - Google Patents

The method of obtaining 1.4: 3,6-Dianhydro-D-Sorbite

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Publication number
RU2000129237A
RU2000129237A RU2000129237/04A RU2000129237A RU2000129237A RU 2000129237 A RU2000129237 A RU 2000129237A RU 2000129237/04 A RU2000129237/04 A RU 2000129237/04A RU 2000129237 A RU2000129237 A RU 2000129237A RU 2000129237 A RU2000129237 A RU 2000129237A
Authority
RU
Russia
Prior art keywords
dianhydro
obtaining
sorbitol
sorbite
acid
Prior art date
Application number
RU2000129237/04A
Other languages
Russian (ru)
Other versions
RU2226530C2 (en
Original Assignee
Общество с ограниченной ответственностью "Фармапол-Волга"
Filing date
Publication date
Application filed by Общество с ограниченной ответственностью "Фармапол-Волга" filed Critical Общество с ограниченной ответственностью "Фармапол-Волга"
Priority to RU2000129237/04A priority Critical patent/RU2226530C2/en
Priority claimed from RU2000129237/04A external-priority patent/RU2226530C2/en
Publication of RU2000129237A publication Critical patent/RU2000129237A/en
Application granted granted Critical
Publication of RU2226530C2 publication Critical patent/RU2226530C2/en

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Claims (1)

Способ получения 1,4:3,6 диангидро-Д-сорбита путем дегидратации сорбита в присутствии кислотного катализатора при повышенной температуре, отличающийся тем, что в качестве исходного сырья используют 75-80%-ный раствор сорбита, процесс отгонки проводят с использованием капилляра, при температуре реакционной массы в кубе выше 130°С через капилляр подается инертный газ (азот, углекислота) и в качестве кислотного катализатора используют бензолсульфаткислоту или серную кислоту в количестве 0,65 - 1,0 мас.%.The method of obtaining 1.4: 3.6 dianhydro-D-sorbitol by dehydration of sorbitol in the presence of an acid catalyst at an elevated temperature, characterized in that a 75-80% sorbitol solution is used as a feedstock, the distillation process is carried out using a capillary, at a temperature of the reaction mass in the cube above 130 ° C, an inert gas (nitrogen, carbon dioxide) is supplied through the capillary and benzenesulfate acid or sulfuric acid in the amount of 0.65-1.0 wt.% is used as an acid catalyst.
RU2000129237/04A 2000-11-23 2000-11-23 Method for preparing 1,4 : 3,6-dianhydro-d-sorbitol RU2226530C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000129237/04A RU2226530C2 (en) 2000-11-23 2000-11-23 Method for preparing 1,4 : 3,6-dianhydro-d-sorbitol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000129237/04A RU2226530C2 (en) 2000-11-23 2000-11-23 Method for preparing 1,4 : 3,6-dianhydro-d-sorbitol

Publications (2)

Publication Number Publication Date
RU2000129237A true RU2000129237A (en) 2003-06-27
RU2226530C2 RU2226530C2 (en) 2004-04-10

Family

ID=32464789

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000129237/04A RU2226530C2 (en) 2000-11-23 2000-11-23 Method for preparing 1,4 : 3,6-dianhydro-d-sorbitol

Country Status (1)

Country Link
RU (1) RU2226530C2 (en)

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