Preparation of C.sub.3 -C.sub.25 -alkanols
    1.
    发明授权
    Preparation of C.sub.3 -C.sub.25 -alkanols 失效
    制备C3-C25-链烷醇

    公开(公告)号:US4709105A

    公开(公告)日:1987-11-24

    申请号:US932637

    申请日:1986-11-19

    CPC分类号: C07C29/141

    摘要: Preparation of C.sub.3 - to C.sub.25 -alkanols by catalytic hydrogenation of corresponding crude C.sub.3 - to C.sub.25 -alkanols, as obtained in the cobalt-catalyzed hydroformylation of C.sub.2 - to C.sub.24 -olefins, by partial 80-95% hydrogenation conversion in a first stage using a silica supported nickel and molybdenum oxide catalyst and then completing the conversion in a second stage using a cobalt catalyst containing copper, manganese, molybdenum and,optionally other activating additives. The process is especially adapted to the economic preparation of C.sub.9 -C.sub.11 - and C.sub.13 -C.sub.15 -alkanols which are used to prepare high-grade plasticizer esters.

    摘要翻译: 通过在C2-至C24-烯烃的钴催化加氢甲酰基化中获得的相应的粗C3-至C25-链烷醇的催化氢化,通过在第一阶段中部分80-95%氢化转化使C3-至C25-链烷醇的制备 二氧化硅负载的镍和氧化钼催化剂,然后使用含有铜,锰,钼和任选的其它活化添加剂的钴催化剂在第二阶段完成转化。 该方法特别适用于用于制备高级增塑剂酯的C9-C11-和C13-C15-链烷醇的经济性制备。

    Recovery of aldehydes from hydroformylation reaction gas
    2.
    发明授权
    Recovery of aldehydes from hydroformylation reaction gas 失效
    从加氢甲酰化反应气中回收醛

    公开(公告)号:US4479012A

    公开(公告)日:1984-10-23

    申请号:US363565

    申请日:1982-03-30

    摘要: Aldehydes are obtained from the gaseous product of the hydroformylation of olefinically unsaturated compounds using a rhodium catalyst by a process (cf. FIG. 2) in which(a) this gaseous product is introduced, without being cooled or depressured, into a distillation column D,(b) the top fraction from this column is cooled in a condenser K so that the greater part of the aldehydes contained therein is condensed,(c) the condensate is separated, in a separator A, into a gas phase and a liquid phase,(d) the gas phase from A, after waste gas has been separated off, is again brought to the hydroformylation pressure by means of a compressor P, and is returned to the reactor as a recycle gas,(e) the liquid phase from A is returned to D, and(f) the aldehydes are taken off from column D as liquid bottom products and/or as a vaporous side stream.

    摘要翻译: 醛通过使用铑催化剂的方法(参见图2)从烯属不饱和化合物的加氢甲酰化的气态产物获得,其中(a)将该气态产物不经冷却或减压引入蒸馏塔D ,(b)将该塔的顶部馏分在冷凝器K中冷却,使其中含有的大部分醛缩合,(c)冷凝物在分离器A中分离成气相和液相 ,(d)在废气分离后,来自A的气相再次通过压缩机P进入加氢甲酰化反应器,并作为循环气体返回到反应器,(e)液相从 A返回到D,和(f)醛作为液体底部产物和/或作为蒸气侧流从塔D中取出。

    Obtaining alkanals having a 2-alkyl branch from alkanal mixtures
    3.
    发明授权
    Obtaining alkanals having a 2-alkyl branch from alkanal mixtures 失效
    从链烷醇混合物中获得具有2-烷基支链的链烷烃

    公开(公告)号:US5026920A

    公开(公告)日:1991-06-25

    申请号:US433661

    申请日:1989-11-08

    摘要: Alkanals having a 2-alkyl branch are obtained from mixtures which contain the alkanals having a 2-alkyl branch in addition to n-alkanals, 3-alkylalkanals and/or further isomers by a process in whicha) the alkanal mixture is reacted with an aqueous formaldehyde solution in the presence of a secondary amine and of a carboxylic acid as a catalyst,b) the aqueous phase containing the catalyst and any unconverted excess formaldehyde is separated off andc) the alkanals having a 2-alkyl branch are isolated by distillation from the condensates of the other alkanals with formaldehyde.

    摘要翻译: 具有2-烷基支链的烷烃由含有具有2-烷基支链的亚烷基的链烷烃,3-烷基链烷醇和/或其它异构体的混合物通过以下方法获得:其中a)使所述链烷醛混合物与 在仲胺和羧酸作为催化剂存在下的甲醛水溶液,b)分离含有催化剂和任何未转化的过量甲醛的水相,并且c)通过蒸馏分离具有2-烷基支链的链烷烃 从其他链烷烃与甲醛的缩合物。