-
公开(公告)号：US20160244395A1
公开(公告)日：2016-08-25
申请号：US15028109
申请日：2014-10-14
发明人： Leonard E. Bogan, Jr. , Mark A. Silvano , Raymond P. Roach , Sarah M. Hoyt , Robert Tengler , David C. Decoster , Sanjib Biswas , Muhunthan Sathiosatham , Sarah L. Hruby , Andrew M. Lemonds
IPC分类号： C07C51/377 , B01J27/24
CPC分类号： C07C51/377 , B01J27/24 , C07C57/04
摘要： Hydroxycarboxylic acids, e.g., 3-hydroxypropionic acid, and/or their ammonium salts are dehydrated to their corresponding unsaturated carboxylic acids, e.g., acrylic acid, by a process that uses a catalyst comprising ammonium bisulfate. The use of ammonium bisulfate reduces or eliminates the problems associated with processes that use sulfuric acid as a dehydrating catalyst, e.g, excess sulfuric acid consumption and/or recovery.
摘要翻译： 通过使用包含硫酸氢铵的催化剂的方法将羟基羧酸例如3-羟基丙酸和/或其铵盐脱水成相应的不饱和羧酸，例如丙烯酸。 使用硫酸氢铵减少或消除了与使用硫酸作为脱水催化剂的方法相关的问题，例如过量的硫酸消耗和/或回收。
-
公开(公告)号：US20160102043A1
公开(公告)日：2016-04-14
申请号：US14889554
申请日：2014-06-17
发明人： Andrew M. Lemonds , Jinsuo Xu
IPC分类号： C07C67/327 , C07C67/08 , B01J23/04 , C07C67/54 , C07C231/10 , C07C67/317 , C07C51/09
CPC分类号： C07C67/327 , B01J21/08 , B01J23/04 , C07C51/09 , C07C67/08 , C07C67/317 , C07C67/54 , C07C231/10 , C07C69/54
摘要： A method for producing α-, β-unsaturated carboxylic acid esters in high yield from acetone cyanohydrin and sulfuric acid through the separation and concurrent catalytic conversion of reaction side products to additional α-, β-unsaturated carboxylic acid ester product. The catalyst comprises at least one Group IA element, and boron as a promoter, on a porous support.
摘要翻译： 通过将反应副产物分离并同时催化转化成另外的α-，β-不饱和羧酸酯产物，从丙酮氰醇和硫酸以高产率生产α-，β-不饱和羧酸酯的方法。 在多孔载体上，催化剂包含至少一种IA族元素和硼作为助催化剂。
-
3.发明申请PROCESS FOR PRODUCING MMA AND/OR MAA FROM ACETONE CYANOHYDRIN AND SULFURIC ACID 有权从ACETONE CYANOHYDRIN和硫酸生产MMA和/或MAA的方法公开(公告)号：US20150259272A1
公开(公告)日：2015-09-17
申请号：US14430648
申请日：2013-09-09
IPC分类号： C07C51/06 , C07C231/06 , C07C67/08
CPC分类号： C07C51/06 , C07C67/08 , C07C67/20 , C07C231/06 , C07C231/12 , C07C303/24 , C07C235/06 , C07C305/06 , C07C233/09 , C07C57/04 , C07C69/54
摘要： A multistage process for the preparation of methacrylic acid and esters thereof via the hydrolysis of ACH, cracking the hydrolysis products, and converting the cracked products to the desired acid or ester, wherein the average temperature in the first hydrolysis reactor is from 55 C to 70 C.
摘要翻译： 用于通过ACH的水解制备甲基丙烯酸及其酯的多阶段方法，裂解水解产物，并将裂化产物转化为所需的酸或酯，其中第一水解反应器中的平均温度为55℃至70℃ C。
-
公开(公告)号：US20150141694A1
公开(公告)日：2015-05-21
申请号：US14398767
申请日：2013-05-21
发明人： Andrew M. Lemonds , Jinsuo Xu
IPC分类号： C07C67/327
CPC分类号： C07C67/327 , B01J23/04 , B01J27/182 , B01J35/1019 , B01J35/1023 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J37/0236 , B01J37/28 , C07C69/54
摘要： A method for producing α-, β-unsaturated carboxylic acid esters in high yield from reaction by-product streams via the catalytic conversion of the by-products to additional α-, β-unsaturated carboxylic acid ester product. The catalyst comprises cesium, and phosphorous as a promoter, on a porous support.
摘要翻译： 通过将副产物催化转化成另外的α-，β-不饱和羧酸酯产物，从反应副产物流中以高产率生产α-，β-不饱和羧酸酯的方法。 在多孔载体上，催化剂包含铯和磷作为助催化剂。
-
公开(公告)号：US09701610B2
公开(公告)日：2017-07-11
申请号：US15028109
申请日：2014-10-14
发明人： Leonard E. Bogan, Jr. , Mark A. Silvano , Raymond P. Roach , Sarah M. Hoyt , Robert Tengler , David C. Decoster , Sanjib Biswas , Muhunthan Sathiosatham , Sarah L. Hruby , Andrew M. Lemonds
IPC分类号： C07C51/377 , B01J27/24 , C07C57/04
CPC分类号： C07C51/377 , B01J27/24 , C07C57/04
摘要： Hydroxycarboxylic acids, e.g., 3-hydroxypropionic acid, and/or their ammonium salts are dehydrated to their corresponding unsaturated carboxylic acids, e.g., acrylic acid, by a process that uses a catalyst comprising ammonium bisulfate. The use of ammonium bisulfate reduces or eliminates the problems associated with processes that use sulfuric acid as a dehydrating catalyst, e.g, excess sulfuric acid consumption and/or recovery.
-
6.发明授权Process for producing MMA and/or MAA from acetone cyanohydrin and sulfuric acid 有权由丙酮氰醇和硫酸生产MMA和/或MAA的方法公开(公告)号：US09260368B2
公开(公告)日：2016-02-16
申请号：US14430648
申请日：2013-09-09
IPC分类号： C07C51/06 , C07C67/20 , C07C303/24 , C07C231/06 , C07C231/12 , C07C67/08
CPC分类号： C07C51/06 , C07C67/08 , C07C67/20 , C07C231/06 , C07C231/12 , C07C303/24 , C07C235/06 , C07C305/06 , C07C233/09 , C07C57/04 , C07C69/54
摘要： A multistage process for the preparation of methacrylic acid and esters thereof via the hydrolysis of ACH, cracking the hydrolysis products, and converting the cracked products to the desired acid or ester, wherein the average temperature in the first hydrolysis reactor is from 55 C to 70 C.
摘要翻译： 用于通过ACH的水解制备甲基丙烯酸及其酯的多阶段方法，裂解水解产物，并将裂化产物转化为所需的酸或酯，其中第一水解反应器中的平均温度为55℃至70℃ C。
-
公开(公告)号：US09199910B2
公开(公告)日：2015-12-01
申请号：US14398767
申请日：2013-05-21
发明人： Andrew M. Lemonds , Jinsuo Xu
IPC分类号： C07C67/327
CPC分类号： C07C67/327 , B01J23/04 , B01J27/182 , B01J35/1019 , B01J35/1023 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1061 , B01J37/0236 , B01J37/28 , C07C69/54
摘要： A method for producing α-, β-unsaturated carboxylic acid esters in high yield from reaction by-product streams via the catalytic conversion of the by-products to additional α-, β-unsaturated carboxylic acid ester product. The catalyst comprises cesium, and phosphorous as a promoter, on a porous support.
摘要翻译： 通过将副产物催化转化成另外的α-，β-不饱和羧酸酯产物，从反应副产物流中以高产率生产α-，β-不饱和羧酸酯的方法。 在多孔载体上，催化剂包含铯和磷作为助催化剂。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.013 秒)
