-
公开(公告)号:US06765119B2
公开(公告)日:2004-07-20
申请号:US10276219
申请日:2002-11-14
申请人: Herwig Hoffmann , Michael Röper , Heinrich-Josef Blankertz , Max Strohmeyer , Helmut Walz , Helmut Zinke-Allmang
发明人: Herwig Hoffmann , Michael Röper , Heinrich-Josef Blankertz , Max Strohmeyer , Helmut Walz , Helmut Zinke-Allmang
IPC分类号: C07C2914
CPC分类号: C07C29/141 , C07C31/12
摘要: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.
摘要翻译: 本发明涉及一种制备饱和C 3 -C 20醇的方法,其中包含至少一种C 3 -C 20醛的液体氢化进料在含氢气体存在下通过氢化催化剂床, 其包括向氢化进料中加入其中均匀溶解的盐类碱的量。 碱的添加抑制副反应,如缩醛化,醛醇缩合,Tischtschenko反应或醚形成。
-
公开(公告)号:US4136124A
公开(公告)日:1979-01-23
申请号:US820718
申请日:1977-08-01
CPC分类号: C07C41/56
摘要: Dialkyl-ketals are manufactured by reacting ketones with alkanols in the presence of an acid condensing agent and of an at least equivalent amount, based on the ketone, of anhydrous calcium sulfate.
-