-
公开(公告)号：EP0100057B1
公开(公告)日：1986-02-26
申请号：EP83107068.5
申请日：1983-07-19
发明人： Otake, Masayuki , Ushikubo, Takashi
IPC分类号： C07C51/377 , C07C57/04 , B01J27/18
CPC分类号： B01J27/186 , C07C51/377 , C07C57/04
-
2.发明公开
公开(公告)号：EP0100057A1
公开(公告)日：1984-02-08
申请号：EP83107068.5
申请日：1983-07-19
发明人： Otake, Masayuki , Ushikubo, Takashi
IPC分类号： C07C51/377 , C07C57/04 , B01J27/18
CPC分类号： B01J27/186 , C07C51/377 , C07C57/04
摘要： A process for producing methacrylic acid and/or methacrylic acid ester by oxidative dehydrogenation of isobutyric acid and/or isobutyric acid ester, wherein the improvement comprises using a catalyst having the composition represented by
(where X denotes at least one element selected from the group consisting of lithium, beryllium, magnesium, barium, tin, lead, chromium, tungsten, and tellurium; subscripts a, b, c, d, e, f, and g each denote the ratio of the respective elements; b, c, d, e, and f are in the range of 0≦b≦3, 0.2≦c≦2,0.005≦d≦2,0.005≦e≦0.2, and 0≦f≦2, respectively, when a is 12, and the value of g is determined according to the ratio and valence of the other elements), and at least a part of the composition having the heteropoly acid structure.-
公开(公告)号：EP0275939A3
公开(公告)日：1990-06-13
申请号：EP88100519.3
申请日：1988-01-15
IPC分类号： C07H13/06
CPC分类号： C07H13/06
摘要： A process for preparing a sucrose fatty acid ester by interesterification between sucrose and a lower alkanol ester or glyceride of a fatty acid in the presence of an ion exchange resin is disclosed, wherein said ion exchange resin is a cation exchange resin having a carboxyl group having been ion-exchanged with an alkali metal and/or alkaline earth metal. A sucrose fatty acid can be prepared in a high yield through a simplified recovery and purification step.
-
公开(公告)号：EP0124078A1
公开(公告)日：1984-11-07
申请号：EP84104657.6
申请日：1984-04-25
CPC分类号： C07C41/42 , C07C41/09 , C09K3/30 , Y02P20/582 , Y10S203/20 , C07C43/043
摘要： ©7 A process for producing dimethyl ether useful as a propellant by dehydrating methanol and recovering dimethyl ether from the dehydrated product by distillation, which comprises
(A) a reaction step wherein the dehydration reaction of methanol is conducted in a vapour phase under pressure of from 2 to 50 kg/cm 2 G in the presence of a solid acid catalyst,
(B) a first distillation step wherein the reaction mixture formed by the above reaction step is cooled and introduced into a pressurized distillation column under pressure of at least 5 kg/ cm 2 G; refined dimethyl ether is obtained as a side stream; substance having a boiling point lower than that of dimethyl ether is distilled from the top; and the bottom is withdrawn, and
(C) a second distillation step wherein said bottom is introduced into a second distillation column under pressure lower than the pressure of the pressurized distillation column; unreacted methanol is recovered as a side stream from the second distillation column; substance having a boiling point lower than that of methanol is distilled from the top; and the bottom is withdrawn, whereby
(D) the unreacted methanol recovered from the second distillation step is recycled to the reaction step.-
公开(公告)号：EP0124078B1
公开(公告)日：1987-03-04
申请号：EP84104657.6
申请日：1984-04-25
CPC分类号： C07C41/42 , C07C41/09 , C09K3/30 , Y02P20/582 , Y10S203/20 , C07C43/043
-
6.发明公开Process for preparing sucrose fatty acid esters 失效Verfahren zur Herstellung von Estern derFettsäurevon Sucrose。
公开(公告)号：EP0275939A2
公开(公告)日：1988-07-27
申请号：EP88100519.3
申请日：1988-01-15
IPC分类号： C07H13/06
CPC分类号： C07H13/06
摘要： A process for preparing a sucrose fatty acid ester by interesterification between sucrose and a lower alkanol ester or glyceride of a fatty acid in the presence of an ion exchange resin is disclosed, wherein said ion exchange resin is a cation exchange resin having a carboxyl group having been ion-exchanged with an alkali metal and/or alkaline earth metal. A sucrose fatty acid can be prepared in a high yield through a simplified recovery and purification step.
摘要翻译： 公开了一种在离子交换树脂存在下通过蔗糖与脂肪酸的低级链烷醇酯或甘油酯之间的酯交换制备蔗糖脂肪酸酯的方法，其中所述离子交换树脂是具有羧基的阳离子交换树脂， 与碱金属和/或碱土金属进行离子交换。 可以通过简单的回收和纯化步骤以高产率制备蔗糖脂肪酸。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.008 秒)
