RU99117306A - METHOD FOR PRODUCING γ-POLIOXYMETHYLENE - Google Patents

METHOD FOR PRODUCING γ-POLIOXYMETHYLENE

Info

Publication number
RU99117306A
RU99117306A RU99117306/04A RU99117306A RU99117306A RU 99117306 A RU99117306 A RU 99117306A RU 99117306/04 A RU99117306/04 A RU 99117306/04A RU 99117306 A RU99117306 A RU 99117306A RU 99117306 A RU99117306 A RU 99117306A
Authority
RU
Russia
Prior art keywords
trioxane
producing
catalyst
polioxymethylene
methanol
Prior art date
Application number
RU99117306/04A
Other languages
Russian (ru)
Other versions
RU2167888C2 (en
Inventor
Василий Михайлович Зиновьев
Геннадий Васильевич Куценко
Елена Леонидовна Голубцова
Юрий Анатольевич Винокуров
Original Assignee
Государственное унитарное предприятие Научно-исследовательский институт полимерных материалов
Filing date
Publication date
Application filed by Государственное унитарное предприятие Научно-исследовательский институт полимерных материалов filed Critical Государственное унитарное предприятие Научно-исследовательский институт полимерных материалов
Priority to RU99117306A priority Critical patent/RU2167888C2/en
Priority claimed from RU99117306A external-priority patent/RU2167888C2/en
Publication of RU99117306A publication Critical patent/RU99117306A/en
Application granted granted Critical
Publication of RU2167888C2 publication Critical patent/RU2167888C2/en

Links

Claims (1)

Способ получения γ-полиоксиметилена полимеризацией производного формальдегида в среде растворителя в присутствии метанола и катализатора, отличающийся тем, что в качестве производного формальдегида используют триоксан, в качестве растворителя - циклогексан, а в качестве катализатора - 7 - 12%-ный раствор серного ангидрида в серной кислоте и процесс проводят при концентрации триоксана 3,4 - 4,4 моль/дм3, массовой доле метанола 4 - 6% от массы триоксана, катализатора 7 - 12% от массы триоксана.The method of producing γ-polyoxymethylene by polymerization of a formaldehyde derivative in a solvent in the presence of methanol and a catalyst, characterized in that trioxane is used as a formaldehyde derivative, cyclohexane is used as a solvent, and a 7-12% sulfuric anhydride solution in sulfuric acid is used as a catalyst acid and the process is carried out at a concentration of trioxane 3.4 - 4.4 mol / dm 3 , mass fraction of methanol 4 - 6% by weight of trioxane, catalyst 7 - 12% by weight of trioxane.
RU99117306A 1999-08-09 1999-08-09 METHOD OF SYNTHESIS OF γ-POLYOXYMETHYLENE RU2167888C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU99117306A RU2167888C2 (en) 1999-08-09 1999-08-09 METHOD OF SYNTHESIS OF γ-POLYOXYMETHYLENE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU99117306A RU2167888C2 (en) 1999-08-09 1999-08-09 METHOD OF SYNTHESIS OF γ-POLYOXYMETHYLENE

Publications (2)

Publication Number Publication Date
RU99117306A true RU99117306A (en) 2001-04-27
RU2167888C2 RU2167888C2 (en) 2001-05-27

Family

ID=20223688

Family Applications (1)

Application Number Title Priority Date Filing Date
RU99117306A RU2167888C2 (en) 1999-08-09 1999-08-09 METHOD OF SYNTHESIS OF γ-POLYOXYMETHYLENE

Country Status (1)

Country Link
RU (1) RU2167888C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467023C1 (en) * 2011-09-06 2012-11-20 Открытое акционерное общество "Научно-исследовательский институт полимерных материалов" METHOD OF OBTAINING HIGHLY DISPERSIVE γ-POLYOXYMETHYLENE
RU2471814C1 (en) * 2011-12-07 2013-01-10 Открытое акционерное общество "Научно-исследовательский институт полимерных материалов" Method of producing finely dispersed dimethyl ether of polyoxymethylene glycol

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