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1. 发明专利

JPS59196886A Recovery of trioxane 失效
标题翻译：三氧化二铁的恢复
公开(公告)号：JPS59196886A
公开(公告)日：1984-11-08
申请号：JP7144183
申请日：1983-04-25
申请人： Asahi Chem Ind Co Ltd
发明人： SEKIYA HARUTAKA , MASAMOTO JIYUNZOU , MATSUZAKI KAZUHIKO
IPC分类号： C07D323/06
摘要： PURPOSE: To recover trioxane containing no triethylamine effectively in high purity, by adding an acid to an aqueous phase containing trioxane and triethylamine after synthesis of copolymer of trioxane and ethylene oxide is over.
CONSTITUTION: Trioxane is copolymerized with ethylene oxide in the presence of a boron trifluoride compound, the copolymer is brought into contact with a triethylamine (TEA for short)-containing aqueous solution, the solution is filtered, an aqueous solution containing trioxane and TEA is fed to the distillation column I , a trioxane-containing aqueous solution is fed from the bottom of the column to the distillation column II, an nonaqueous organic solvent (e.g., benzene) is fed from 5 to a distillation containing trioxane and water from the heat of the column, trioxane is transferred to an organic phase, taken out from 6, the aqueous phase is circulated from 7 to the distillation column II to recover trioxane. In the operation, an acid (e.g., formic acid) is fed from any of the feed openings 9W13 so trioxane containing no TEA is recovered.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在三恶烷和环氧乙烷的共聚物合成后，通过向含有三恶烷和三乙胺的水相中加入酸来回收高纯度不含三乙胺的三恶烷。构成：三氟化硼在三氟化硼化合物的存在下与环氧乙烷共聚，共聚物与三乙胺（简称TEA）的水溶液接触，过滤溶液，加入含有三恶烷和TEA的水溶液向蒸馏塔I中，将含三恶烷的水溶液从塔底部进料到蒸馏塔II中，将非水有机溶剂（例如苯）从5加入到含有三恶烷和水的蒸馏中，将柱，三恶烷转移到有机相，从6中取出，水相从7循环到蒸馏塔II以回收三恶烷。在操作中，酸（例如甲酸）从任何进料口9-13进料，因此回收不含TEA的三恶烷。

2. 发明专利

JPS57117521A Preparation of stable polyacetal 失效
标题翻译：稳定聚合物的制备
公开(公告)号：JPS57117521A
公开(公告)日：1982-07-22
申请号：JP401381
申请日：1981-01-13
申请人： Asahi Chem Ind Co Ltd
发明人： MATSUZAKI KAZUHIKO , HAMADA MINORU , SAKURAI HISAYA , SEKIYA HARUTAKA
IPC分类号： C08G2/00 , C08G2/18 , C08G2/30
摘要： PURPOSE: To obtain a polyacetal having improved stability and mechanical properties in high yield, by reacting a polyoxymethylene with an alkylene oxide at a specific limit concentration or below in an organic medium in the presence of a Lewis acid.
CONSTITUTION: (A) A polyoxymethylene having a number-average molecular weight ≥10,000 is reacted with (B) an alkylene oxide, preferably ethylene oxide, kept at the limit concentration of the formula[M is the concentration of the component (B); M
c is the limit concentration; P is the concentration of the component (A)]or below in an organic medium in the presence of (C) a Lewis acid, preferably boron trifluoride dibutyl etherate, as a catalyst and the reaction is then completed by adding NaOH, etc. thereto to give the aimed polyacetal. Preferably, the catalyst (C) is used in a concentration range of 1×10
-7 W1× 10
-1 mole/l.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过在路易斯酸存在下，通过使聚甲醛与特定极限浓度以下的烯化氧在有机介质中反应，得到高收率的稳定性和机械性能得到改善的聚缩醛。构成：（A）数均分子量大于等于10,000的聚甲醛与（B）烯化氧（优选环氧乙烷）反应，保持浓度为式[M为组分（B）的浓度） ; 麦克是极限浓度; 在（C）路易斯酸（优选三氟化硼二丁醚合物）作为催化剂的存在下，有机介质中的有机介质中的组分（A）的浓度]为P的浓度，然后通过加入NaOH等来完成反应给予目标聚缩醛。优选地，催化剂（C）的使用浓度范围为1×10 -7 -1×10 -1摩尔/升。

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