公开(公告)号：US3923917A

公开(公告)日：1975-12-02

申请号：US53121374

申请日：1974-12-10

Applicant: HOECHST AG

Inventor： OHORODNIK ALEXANDER ,  GEHRMANN KLAUS ,  LEGUTKE GUNTER ,  VIERLING HERMANN

IPC: B01J27/00 ,  B01J31/04 ,  B01J31/30 ,  B01J37/24 ,  C07B61/00 ,  C07C1/00 ,  C07C2/38 ,  C07C7/148 ,  C07C11/30 ,  C07C67/00 ,  C07C11/22 ,  C07C21/20

CPC classification number: B01J31/30 ,  B01J31/0225 ,  B01J31/0237 ,  B01J31/0271 ,  B01J31/04 ,  B01J37/24 ,  C07C2/38 ,  C07C2527/122 ,  C07C11/30

Abstract: Monovinylacetylene is produced by an improved process, wherein acetylene is introduced at temperatures within the range 40* and 100*C and under acetylene gas pressures within the range 0.01 and 10 atmospheres (gauge) into a Nieuwland catalyst type solution being an aqueous copper(I) chloride solution in hydrochloric acid, which is used in admixture with between 0.1 and 10 weight% of an alkali metal salt of an aminocarboxylic acid or of an aminosulfonic acid and in further admixture with an organic monovinylacetylene solvent boiling at temperatures higher than about 150*C, immiscible with the solution and containing at least 40 weight% of indan together with further mononuclear aromates; wherein the catalyst solution and the solvent are mechanically dispersed by introducing acetylene thereinto with the resultant formation of a homogeneous catalyst liquid having between 25 and 85% by volume of the solvent therein; wherein monovinylacetylene is continually stripped off from the dispersed solvent, which is saturated with monovinylacetylene, by introducing an excess of acetylene gas thereinto; and wherein pure monovinylacetylene is recovered from the issuing gas mixture. The improved process comprises more particularly concentrating the catalyst solution by evaporating water therefrom and dissolving additional copper(I) chloride in the catalyst solution so concentrated.

Abstract translation: 通过改进的方法制备单乙炔基乙炔，其中乙炔在40℃和100℃的温度和在0.01和10个大气压（表压）范围内的乙炔气体压力下引入Nieuwland催化剂型溶液中，其为铜（I ）氯化物溶液，其与0.1至10重量％的氨基羧酸或氨基磺酸的碱金属盐的混合物与进一步与高于约150℃的沸点沸点的有机单乙烯基乙炔溶剂混合使用 C，与溶液不混溶，并含有至少40重量％的茚满和另外的单核芳香; 其中催化剂溶液和溶剂通过向其中引入乙炔而机械分散，从而形成其中溶剂的体积的体积的体积的体积的体积的25至85％ 其中通过向其中引入过量的乙炔气体而从单乙炔基乙炔饱和的分散溶剂中连续剥离单乙烯基乙炔; 并且其中从所述发出气体混合物中回收纯单乙烯基乙炔。 改进的方法包括通过从其中蒸发水而更加特别地浓缩催化剂溶液，并将另外的氯化亚铜（I）溶解在如此浓缩的催化剂溶液中。