公开(公告)号：EP0186294A2

公开(公告)日：1986-07-02

申请号：EP85308251.9

申请日：1985-11-13

申请人： STAUFFER CHEMICAL COMPANY

发明人： Greco, Carl Cataldo ,  Triplett, Kelly Bruce

IPC分类号： C07C29/70 ,  C07C31/32 ,  C07C31/30 ,  C07C31/28

CPC分类号： C07C29/70 ,  C07C31/28 ,  C07C31/30 ,  C07C31/32

摘要： 57 Improved methods for preparing metal alkoxides from metals and alcohols involve dry-grinding the metal in an inert atmosphere prior to the addition of the alcohol. When an activator is used, it is usually ballmilled with the metal. Higher yields are obtained particularly when the metal and alcohol are not very reactive without an activator. Typical metals are those from Groups 2A, 2B, 3A, and 3B, particularly aluminum, magnesium, and yttrium. Typical alcohols are those which contain up to 16 carbon atoms, particularly those containing 4 or more carbon atoms.

摘要翻译： 从金属和醇制备金属醇盐的改进方法包括在加入醇之前在惰性气氛中干磨金属。 当使用活化剂时，通常用金属球磨。 特别是当金属和醇在没有活化剂的情况下不是非常活泼的情况下获得更高的收率。 典型的金属是来自2A，2B，3A和3B族的金属，特别是铝，镁和钇。 典型的醇是含有至多16个碳原子的醇，特别是含有4个或更多个碳原子的醇。

公开(公告)号：EP0091425A3

公开(公告)日：1984-05-23

申请号：EP83890044

申请日：1983-03-24

申请人： FMC Corporation

发明人： Smith, Harry Martin ,  Williams, Raymond Daryl

IPC分类号： C07C29/70 ,  C07C31/30

CPC分类号： C07F9/11 ,  C07C41/18 ,  C07C41/42 ,  C07F9/091 ,  C07C43/13

摘要： A continuous process for producing alkali metal alkoxides comprising continuously introducing an aqueous solution of an alkali metal hydroxide into an upper section of a column reactor; continuously vaporizing an alkanol or an alkoxyalkanol of 4 to 18 carbon atoms into a lower section of the reactor at a rate of at least about 2 to 4 moles of alcohol for each mole of alkali metal hydroxide introduced into the reaction zone; reacting the aliphatic alcohol with the alkali metal hydroxide in the reactor; concurrently removing water from the alkali metal hydroxide solution and the alkoxide formation from an upper section of the reactor as an azeotrope formed by excess alcohol and water; continuously condensing and separating the azeotrope into an alcohol phase and a water phase, the water phase being removed from the process and the alcohol phase being returned to the column reactor; and removing a substantially anhydrous reaction product consisting primarily of alkoxide product in excess alcohol from a bottom section of the reactor while simultaneously maintaining a nonoxidizing atmosphere while conducting the reaction.