![用于生产(甲基)丙烯酸和衍生物的工艺和从其生产的聚合物](/CN/2012/8/1/images/201280008311.jpg)
基本信息:
- 专利标题: 用于生产(甲基)丙烯酸和衍生物的工艺和从其生产的聚合物
- 专利标题(英):A process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
- 申请号:CN201280008311.1 申请日:2012-02-08
- 公开(公告)号:CN103370299A 公开(公告)日:2013-10-23
- 发明人: 大卫·威廉·约翰逊 , 格雷厄姆·罗纳德·伊斯特汉 , 马丁·波利亚科夫 , 托马斯·安德鲁·哈德尔
- 申请人: 璐彩特国际英国有限公司
- 申请人地址: 英国汉普郡
- 专利权人: 璐彩特国际英国有限公司
- 当前专利权人: 三菱化学英国有限公司
- 当前专利权人地址: 英国汉普郡
- 代理机构: 北京安信方达知识产权代理有限公司
- 代理人: 高瑜; 郑霞
- 优先权: 1102249.8 2011.02.09 GB; 1110741.4 2011.06.24 GB
- 国际申请: PCT/GB2012/050272 2012.02.08
- 国际公布: WO2012/107758 EN 2012.08.16
- 进入国家日期: 2013-08-09
- 主分类号: C07C51/38
- IPC分类号: C07C51/38 ; C07C51/48 ; C07C57/04 ; C08F20/06
A method of extracting (meth)acrylic acid from an aqueous reaction medium into an organic phase in contact therewith is described. The aqueous reaction medium is formed from at least one base catalyst and at least one dicarboxylic acid selected from maleic, fumaric, malic, itaconic, citraconic, mesaconic, and citramalic acid or mixtures thereof in aqueous solution and contains the base catalysed decarboxylation products of the base catalysed reaction. The method includes either the addition of at least one of the said dicarboxylic acids and/or a pre-cursor thereof to the aqueous reaction medium to enhance the solvent extraction of the (meth)acrylic acid into the organic solvent or maintaining the level of base catalyst to dicarboxylic acid and/or pre-cursor at a sub-stoichiometric level during the extraction process. The method extends to a process of producing (meth)acrylic acid, its esters and polymers and copolymers thereof.
公开/授权文献:
- CN103370299B 用于生产(甲基)丙烯酸和衍生物的工艺和从其生产的聚合物 公开/授权日:2016-06-01
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07C | 无环或碳环化合物 |
------C07C51/00 | 羧酸或它们的盐、卤化物或酐的制备 |
--------C07C51/347 | .不包括形成羧基的反应 |
----------C07C51/377 | ..裂解氢或官能团;官能团的氢解 |
------------C07C51/38 | ...脱羧 |