申请人:UNION CARBIDE CORPORATION
公开号:EP0322811A2
公开(公告)日:1989-07-05
A hydrocarbonylation process for producing an aldehyde or a mixture of a ketone and an aldehyde which comprises:
(I) forming a reaction mixture comprising:
(a) a catalytic amount of a complex catalyst consisting essentially of rhodium in complex combination with:
(i) a triorganophosphine, and
(ii) a carboxylic acid having a phenyl group substituted at the para position with a non-reactive electron-withdrawing group, said phenyl group being free of further substitution amd said electron withdrawing group being substantially non-reactive in said process;
(b) an alpha-olefin having 2 to 5 carbon atoms,
(c) carbon monixide, and
(d) hydrogen with the proviso that the reaction mixture has mole ratio of said carboxylic acid to rhodium of at least about 2; and
(II) maintaining the reaction mixture at a temperature and pressure at which said (b), (c) and (d) react to form an aldehyde or a mixture of an aldehyde and a ketone.
一种生产醛或酮与醛混合物的烃化工艺,包括
(I) 形成一种反应混合物,其中包括
(a) 催化量的络合催化剂,主要由铑与下列物质络合组成
(i) 三有机膦,和
(ii) 羧酸,该羧酸的苯基在对位上被非反应性的抽电子基团取代,所述苯基在所述 过程中不被进一步取代,而所述抽电子基团在所述过程中基本上不发生反应;
(b) 具有 2 至 5 个碳原子的α-烯烃、
(c) 碳一氧化物,以及
(d) 氢,但反应混合物中所述羧酸与铑的摩尔比至少约为 2;以及
(II) 将反应混合物保持在一定的温度和压力下,在此温度和压力下,所述(b)、(c) 和(d)发生反应,形成醛或醛和酮的混合物。