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1. 发明授权

US4043873A Plural stage recovery of trioxane in a process having a molecular distillation step 失效
标题翻译：在具有分子蒸馏步骤的方法中，三恶烷的多级回收
公开(公告)号：US4043873A
公开(公告)日：1977-08-23
申请号：US677952
申请日：1976-04-19
申请人： Jacob Ackermann , Pierino Radici , Umberto Santini , Paolo Colombo
发明人： Jacob Ackermann , Pierino Radici , Umberto Santini , Paolo Colombo
IPC分类号： C07D323/06 , B01D3/12
CPC分类号： C07D323/06
摘要： Process for the separation of trioxane from aqueous solutions containing it together with formaldehyde, which comprises subjecting the said solutions to evaporation at temperatures of 100.degree. C or lower, at pressures lower than atmospheric, and with residence times of less than 1 minute under the evaporation conditions, with vaporization of a quantity of from about 5 to about 15% by weight of the solution introduced, and recovering the trioxane from the products evaporated in this way.
摘要翻译：将含有它的水溶液与甲醛一起分离三恶烷的方法，其中包括使所述溶液在低于大气压的压力下在100℃或更低的温度下蒸发，并且在蒸发下的停留时间小于1分钟条件，蒸发量为所引入溶液的约5至约15重量％，并从以这种方式蒸发的产物中回收三恶烷。

2. 发明授权

US3969344A Method of purifying polymerizable organic substances 失效
标题翻译：可聚合有机物质的净化方法
公开(公告)号：US3969344A
公开(公告)日：1976-07-13
申请号：US195840
申请日：1971-11-04
申请人： Jacob Ackermann , Pierino Radici
发明人： Jacob Ackermann , Pierino Radici
IPC分类号： B01D15/04 , B01J39/04 , C07D323/06 , C08G2/00 , C08G63/08 , C08G69/18 , C07D201/16
CPC分类号： C07D323/06 , B01J39/04 , C08G2/06 , C08G2/10 , C08G4/00 , C08G63/08 , C08G69/18
摘要： A process for purifying a polymerisable monomer selected from the group consisting of cyclic ethers, hydrocarbon olefins, vinyl compounds, aldehydes, lactams of the formula: ##EQU1## wherein x is an integer from 3 to 13 and lactones of the formula: ##EQU2## wherein n is an integer of from 1 to 4 and wherein R represents an hydrogen atom, an alkyl group or an aryl group; said process comprising contacting a liquid consisting of said monomer at a temperature of not greater than 130.degree. centigrade and at a pressure sufficient to keep said monomer in liquid form, with a solid absorbent consisting essentially of a porous reticulated macromolecular alkali metal or alkaline earth metal salt of a cationic exchange resin containing carboxylic, sulfonic or phosphoric acid groups, said cationic exchange resin having a specific surface area of at least one square meter per gram and a pore diameter of from 10.sup.1.3 to 10.sup.5 angstroms and recovering the purified monomer.
摘要翻译：一种纯化可聚合单体的方法，该可聚合单体选自环醚，烃烯烃，乙烯基化合物，醛，式（NH）（CH 2）x ANGLE | CO）的内酰胺，其中x为3至13的整数，式：R-CH-（CH 2）n -COO其中n为1〜4的整数，R为氢原子，烷基或芳基; 所述方法包括在不高于130℃的温度和足以使所述单体保持液态的压力下将由所述单体组成的液体与基本上由多孔网状大分子碱金属或碱土金属组成的固体吸收剂含有羧酸，磺酸或磷酸基团的阳离子交换树脂的盐，所述阳离子交换树脂的比表面积至少为1平方米/克，孔径为101.3至105埃，并回收纯化的单体。

3. 发明授权

US4054555A Process for the purification of halo-aldehydes 失效
标题翻译：卤代醛纯化方法
公开(公告)号：US4054555A
公开(公告)日：1977-10-18
申请号：US685603
申请日：1976-05-12
申请人： Jacob Ackermann , Pierino Radici
发明人： Jacob Ackermann , Pierino Radici
IPC分类号： C07C47/14
CPC分类号： C07C45/79
摘要： Purification of haloaldehydes in a process that consists essentially of a first stage of purification in which the haloaldehydes are brought into contact with an absorbent solid, basic in nature, in the presence of water or free alcohols, and of a second stage of purification in which the halo-aldehydes thus treated are brought into contact with a solid absorbent carrying sulphonic, phosphonic or carboxylic acid groups in the form of salts of alkali or alkaline earth metals.
摘要翻译：在基本上由卤代醛与吸收性固体接触的第一级纯化的方法中纯化卤代醛，其本质上为碱性，在水或游离醇的存在下，和第二级纯化，其中这样处理的卤代醛与携带有碱金属或碱土金属盐形式的磺酸，膦酸或羧酸基的固体吸收剂接触。

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