公开(公告)号：US4207151A

公开(公告)日：1980-06-10

申请号：US693062

申请日：1976-06-04

申请人： Fritz R. Franke ,  Leonard L. Hovey ,  George H. Mock ,  Andrew M. Patterson, Jr.

发明人： Fritz R. Franke ,  Leonard L. Hovey ,  George H. Mock ,  Andrew M. Patterson, Jr.

IPC分类号： C25B3/10

CPC分类号： C25B3/105

摘要： An improvement in an electrolytic hydrodimerization process for hydrodimerizing an olefinic compound such as acrylonitrile to form a dimerized product such as adiponitrile in which an aqueous electrolyte solution comprised of the olefinic compound, a directive salt (providing quaternary ammonium cations) and a conductive salt is electrolyzed in a reaction cell, the aqueous solution is purged from the reaction cell, and subjected to a series of steps involving the recovery of the product, the directive salt and the conductive salt, the recovered salts being used to reconstitute the aqueous solution, the improvement being a functionally coordinated evaporation step which permits a higher rate and more efficient recovery of product and salts, a higher purge rate and a substantially higher yield of the dimerized product. The invention also constitutes an improved electrolyte recovery process.

摘要翻译： 对烯烃化合物如丙烯腈进行加氢二聚化以形成二聚产物如己二腈的电解加氢二聚化方法的改进，其中由烯烃化合物，指导盐（提供季铵阳离子）和导电盐组成的含水电解质溶液被电解 在反应池中，将水溶液从反应池中清除，并进行一系列涉及回收产物，指导盐和导电盐的步骤，用于重构水溶液的回收盐，改进 其是功能上协调的蒸发步骤，其允许产物和盐的更高速率和更有效的回收，更高的吹扫速率和显着更高的二聚产物的产率。 本发明还构成了改进的电解质回收方法。

公开(公告)号：US4639539A

公开(公告)日：1987-01-27

申请号：US804013

申请日：1985-12-03

申请人： Leonard L. Hovey ,  Marion J. Mathews, III ,  P. Robert Peoples

发明人： Leonard L. Hovey ,  Marion J. Mathews, III ,  P. Robert Peoples

IPC分类号： C07C121/30

CPC分类号： C07C255/00

摘要： Acrylonitrile is catalytically dimerized in the presence of an organic phosphorus (III) catalyst, an inert hydrocarbon reaction solvent and a non-interfering proton-donating solvent; and the dimerized product separated from the catalyst by extraction. In the extraction the dimerized product is preferably dissolved in an extraction solvent and removed from the catalyst phase preparation. In the instant invention, the extraction solvent is an amide, preferably formamide. The extraction solvent and proton-donating solvent may be identical.

摘要翻译： 丙烯腈在有机磷（III）催化剂，惰性烃反应溶剂和非干扰质子供体溶剂存在下催化二聚， 并通过萃取从催化剂中分离出二聚产物。 在提取中，二聚产物优选溶解在萃取溶剂中并从催化剂相制备物中除去。 在本发明中，提取溶剂是酰胺，优选甲酰胺。 萃取溶剂和质子供体溶剂可以相同。

公开(公告)号：US4046651A

公开(公告)日：1977-09-06

申请号：US599908

申请日：1975-07-28

申请人： Joseph C. Burnett, Jr. ,  John J. Hicks ,  Leonard L. Hovey

发明人： Joseph C. Burnett, Jr. ,  John J. Hicks ,  Leonard L. Hovey

IPC分类号： C07C69/34 ,  C07C67/00 ,  C07C231/00 ,  C07C233/04 ,  C07C233/05 ,  C07C253/00 ,  C07C255/05 ,  C25B3/10

CPC分类号： C25B3/105

摘要： In a process for hydrodimerizing an olefinic nitrile, amide or ester by electrolyzing an aqueous solution of the olefinic starting material, conductive salt and a nitrilocarboxylic acid compound that inhibits formation of hydrogen at the cathode, such hydrogen formation can be even further inhibited and the current efficiency of the process significantly further increased by including in the solution a tri(C.sub.2 -C.sub.4 alkanol)amine such as triethanolamine.

摘要翻译： 在通过电解烯烃原料的水溶液，导电盐和抑制在阴极形成氢的氮三羧酸化合物的烯烃腈，酰胺或酯的氢化二聚作用的方法中，甚至可以进一步抑制这种形成氢， 通过在溶液中包含三（C 2 -C 4烷醇）胺如三乙醇胺，该方法的效率显着进一步提高。