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公开(公告)号：EP0492593B1
公开(公告)日：1996-11-13
申请号：EP91122165.3
申请日：1991-12-23
发明人： Segall, Jeane , Shorr, Leonard
IPC分类号： A01N43/80 , C07D275/03 , A01N25/22
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2.发明公开
公开(公告)号：EP0446537A1
公开(公告)日：1991-09-18
申请号：EP90400667.3
申请日：1990-03-13
发明人： Segall, Jeane , Shorr, Leonard M.
摘要： A process for preparing lower alkyl-halides from the reaction of HX and the corresponding lower alcohol, wherein X represents a halogen atom, comprises continuously feeding HX and a lower alcohol to a reactor maintaining the instantaneous molar ratio of HX to the alcohol greater than 3, and continuously distilling off lower alkyl-halide and water from the reactor, continuously separating the lower alkyl-halide and water and recycling part of the said water to the distillation column to abate HX distillation from the reactor. High acid concentrations and temperatures are maintained to obtain high yields and rapid conversion of alkanols.
摘要翻译： 从HX和相应的低级醇（其中X表示卤素原子）的反应制备低级烷基卤化物的方法包括将HX和低级醇连续地供入反应器，保持HX与醇的瞬时摩尔比大于3 并连续地从反应器中蒸馏除去低级烷基卤化物和水，连续分离低级烷基卤化物和水，并将部分所述水再循环到蒸馏塔中以从反应器中减少HX蒸馏。 保持高酸浓度和温度以获得高产率和链烷醇的快速转化。
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公开(公告)号：EP0492593A1
公开(公告)日：1992-07-01
申请号：EP91122165.3
申请日：1991-12-23
发明人： Segall, Jeane , Shorr, Leonard
IPC分类号： A01N43/80 , C07D275/03 , A01N25/22
摘要： A composition comprising A) an aqueous solution wherein the total content of 3-isothiazolinones is below 8 wt/%, and B) a stabilizing compound of the formula:
[R x A-C₆H₂R¹R²] y -Z
wherein:
R, R¹ and R² each independently represents hydrogen, a straight-chained or branched or cyclic alkyl radical, aralkyl or aryl;
A is oxygen or nitrogen;
Z represents AR x , R¹, R², alkoxy methylene, methylene or alkylidene;
provided that when A is oxygen, x is 0 or 1 and when A is nitrogen or 2; and y is 1 or 2;
exhibits improved stability.摘要翻译： 一种组合物，其包含A）其中3-异噻唑啉酮的总含量低于8重量％的水溶液，和B）下式的稳定化合物：[RxA-C 6 H R R 1 R 2] y Z其中：R， R 1和R 2各自独立地表示氢，直链或支链或环状烷基，芳烷基或芳基; A是氧或氮; Z表示ARx，R 1，R 2，烷氧基亚甲基，亚甲基或亚烷基; 条件是当A是氧时，x是0或1，当A是氮或2时; y为1或2; 表现出改善的稳定性。 这里
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