RU93056101A - METHOD FOR PROCESSING OUTDATED PYROXYLIN POWDERS - Google Patents

METHOD FOR PROCESSING OUTDATED PYROXYLIN POWDERS

Info

Publication number
RU93056101A
RU93056101A RU93056101/04A RU93056101A RU93056101A RU 93056101 A RU93056101 A RU 93056101A RU 93056101/04 A RU93056101/04 A RU 93056101/04A RU 93056101 A RU93056101 A RU 93056101A RU 93056101 A RU93056101 A RU 93056101A
Authority
RU
Russia
Prior art keywords
processing
cellulose
pyroxylin powders
acetonitrates
anc
Prior art date
Application number
RU93056101/04A
Other languages
Russian (ru)
Other versions
RU2092493C1 (en
Inventor
А.В. Косточко
И.Н. Краснов
А.И. Петров
В.Ф. Васильев
Б.С. Колесов
В.В. Ильин
З.М. Сафина
Original Assignee
Производственное объединение "Рошальский химический комбинат им. А.А.Косякова"
Filing date
Publication date
Application filed by Производственное объединение "Рошальский химический комбинат им. А.А.Косякова" filed Critical Производственное объединение "Рошальский химический комбинат им. А.А.Косякова"
Priority to RU93056101A priority Critical patent/RU2092493C1/en
Priority claimed from RU93056101A external-priority patent/RU2092493C1/en
Publication of RU93056101A publication Critical patent/RU93056101A/en
Application granted granted Critical
Publication of RU2092493C1 publication Critical patent/RU2092493C1/en

Links

Claims (1)

Изобретение относится к области переработки вторичных полимерных материалов, конкретно, устаревших пироксилиновых порохов (ПП), в сложные ацетонитраты целлюлозы (АНЦ). Целью изобретения является утилизация устаревших пироксилиновых порохов, экономия растительного сырья. Поставленная цель достигается за счет переработки ПП в АНЦ путем переэтерификации пороха смесью - уксусный ангидрид : метиленхлорид состава 30 - 60 : 53 - 132 мас.ч. соответственно на 10 мас.ч. пороха в присутствии катализатора. С целью безопасности процесса и повышения качества получаемого ацетонитрата целлюлозы, ПП предварительно очищают от дифениламина путем измельчения его, обезвоживания и последующего экстрагирования крошки ПП метиленхлоридом (МХ). В качестве катализатора используются минеральные кислоты: серная, хлорная, фосфорная. Полученные данным способом ацетонитраты целлюлозы могут быть использованы в составах этролов, промышленных ВВ, лаковых и других композиций.The invention relates to the field of processing secondary polymeric materials, specifically obsolete pyroxylin powders (PP), into complex cellulose acetonitrates (ANC). The aim of the invention is the disposal of obsolete pyroxylin powders, saving plant materials. This goal is achieved by processing PP in the ANC by transesterifying the powder with a mixture of acetic anhydride: methylene chloride of the composition 30-60: 53-132 wt.h. respectively, 10 parts by weight gunpowder in the presence of a catalyst. In order to ensure process safety and improve the quality of the resulting cellulose acetonitrate, PP is preliminarily purified from diphenylamine by grinding it, dehydration and subsequent extraction of PP crumbs with methylene chloride (MX). Mineral acids are used as a catalyst: sulfuric, perchloric, phosphoric. Cellulose acetonitrates obtained by this method can be used in the compositions of etrols, industrial explosives, varnish and other compositions.
RU93056101A 1993-12-20 1993-12-20 Method of preparing complex cellulose acetonitrate RU2092493C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93056101A RU2092493C1 (en) 1993-12-20 1993-12-20 Method of preparing complex cellulose acetonitrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93056101A RU2092493C1 (en) 1993-12-20 1993-12-20 Method of preparing complex cellulose acetonitrate

Publications (2)

Publication Number Publication Date
RU93056101A true RU93056101A (en) 1996-09-20
RU2092493C1 RU2092493C1 (en) 1997-10-10

Family

ID=20150435

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93056101A RU2092493C1 (en) 1993-12-20 1993-12-20 Method of preparing complex cellulose acetonitrate

Country Status (1)

Country Link
RU (1) RU2092493C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2752841C1 (en) * 2020-11-12 2021-08-09 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП " ГосНИИХП ") Method for processing pyroxeline powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2752841C1 (en) * 2020-11-12 2021-08-09 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП " ГосНИИХП ") Method for processing pyroxeline powder

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