公开(公告)号：US20160090344A1

公开(公告)日：2016-03-31

申请号：US14891861

申请日：2014-04-28

申请人： Alexander MAY ,  Steffen KRILL ,  Jörg BECKER ,  Willi PLÖSSER ,  Marcel TRESKOW ,  Martin KÖSTNER ,  EVONIK RÖHM GMBH

发明人： Alexander MAY ,  Steffen KRILL ,  Joerg BECKER ,  Willi PLOESSER ,  Marcel TRESKOW ,  Martin KOESTNER

IPC分类号： C07C51/377 ,  C07C51/44

CPC分类号： C07C51/377 ,  C07C51/43 ,  C07C51/44 ,  C07C51/47 ,  C07C51/48 ,  Y02P20/582 ,  C07C57/04

摘要： The present invention describes a process for preparing alpha-beta-unsaturated carboxylic acids by dehydration of hydroxycarboxylic or alkoxycarboxylic acids which are substituted in the alpha position, in particular 2-hydroxyisobutyric acid, while avoiding accumulation of by-products and additives.

摘要翻译： 本发明描述了通过在α位被取代的羟基羧酸或烷氧基羧酸脱水制备α-β-不饱和羧酸的方法，特别是2-羟基异丁酸，同时避免了副产物和添加剂的积累。

公开(公告)号：US20160137583A1

公开(公告)日：2016-05-19

申请号：US14900403

申请日：2014-07-03

申请人： Steffen KRILL ,  Alexander MAY ,  Jörg BECKER ,  Martin KÖSTNER ,  EVONIK RÖHM GMBH

发明人： Steffen KRILL ,  Alexander MAY ,  Joerg BECKER ,  Martin KOESTNER

IPC分类号： C07C67/20

CPC分类号： C07C67/20 ,  Y02P20/582 ,  C07C69/675

摘要： The present invention relates to a process for the production of alpha-hydroxycarboxylic esters by means of alcoholysis of the corresponding alpha-hydroxycarboxamide under heterogeneous catalysis.

摘要翻译： 本发明涉及在非均相催化下通过相应的α-羟基甲酰胺的醇解制备α-羟基羧酸酯的方法。

公开(公告)号：US20170283364A1

公开(公告)日：2017-10-05

申请号：US15508200

申请日：2015-09-04

申请人： Steffen KRILL ,  Belaid AIT AISSA ,  Alexander MAY ,  Marcel TRESKOW

发明人： Steffen KRILL ,  Belaid AIT AISSA ,  Alexander MAY ,  Marcel TRESKOW

IPC分类号： C07C67/20 ,  C01C1/02 ,  C01C3/02 ,  B01J20/20

CPC分类号： C07C67/20 ,  B01J20/20 ,  C01C1/024 ,  C01C3/0208 ,  C01C3/0212 ,  C07C69/675

摘要： The present invention relates to a process for preparing alpha-hydroxycarboxylic esters proceeding from hydrogen cyanide, wherein the ammonia formed in the step of alcoholysis of the corresponding alpha-hydroxycarboxamide is recycled into a hydrogen cyanide preparation process after a purification step.

公开(公告)号：US20170144960A1

公开(公告)日：2017-05-25

申请号：US15323888

申请日：2015-07-23

申请人： Steffen KRILL ,  Belaid AIT AISSA ,  Alexander MAY ,  Matthias GROEMPING

发明人： Steffen KRILL ,  Belaid AIT AISSA ,  Alexander MAY ,  Matthias GROEMPING

IPC分类号： C07C67/20 ,  C01C1/08 ,  C01C3/02 ,  B01J21/06

CPC分类号： C07C67/20 ,  B01J21/066 ,  C01C1/08 ,  C01C3/02 ,  C07C69/675

摘要： The present invention relates to a process for preparing alpha-hydroxycarboxylic esters from the alcoholysis of alpha-hydroxycarboxam ides in the gas phase, characterized in that the conversion is effected in the presence of water.

公开(公告)号：US20170101322A1

公开(公告)日：2017-04-13

申请号：US15127937

申请日：2015-03-13

申请人： EVONIK RÖHM GMBH

发明人： Alexander MAY ,  Willi PLOESSER ,  Markus Rolf ROSSMEISSL ,  Steffen KRILL ,  Martin KOESTNER

IPC分类号： C01C1/10 ,  B01D3/42 ,  B01D5/00

CPC分类号： C01C1/10 ,  B01D3/42 ,  B01D5/0063 ,  C01C1/12 ,  C01P2006/80

摘要： The present invention describes a method of removing ammonia from alcoholic solution in the presence of carbonic acid compounds while avoiding fouling by supplying the solution to be separated to the upper part of a distillation column and adjusting the temperature at the introduction point such that the ammonium salts of the carbonic acid compound in question are soluble in the in question at the top of the distillation column under the operating conditions.

公开(公告)号：US20120232305A2

公开(公告)日：2012-09-13

申请号：US13131462

申请日：2009-10-29

申请人： Alexander MAY ,  Martin KOESTNER ,  Joerg BECKER ,  Joerg SCHALLENBERG ,  Hermann SIEGERT ,  Bernd VOGEL

发明人： Alexander MAY ,  Martin KOESTNER ,  Joerg BECKER ,  Joerg SCHALLENBERG ,  Hermann SIEGERT ,  Bernd VOGEL

IPC分类号： C07C67/20 ,  C07C231/24

CPC分类号： C07C231/06 ,  C07C231/065 ,  C07C231/14 ,  C07C253/00 ,  C07C233/09 ,  C07C255/16

摘要： The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid to produce a hydroxycarboxylic acid nitrile, B) hydrolysis of the hydroxycarboxylic acid nitrile obtained in step A) in the presence of a catalyst comprising manganese dioxide, wherein a molar excess of carbonyl compound is used in relation to the hydrocyanic acid to react the carbonyl compound with hydrocyanic acid according to step A), and the reaction mixture obtained in step A) is not purified by distillation before the hydrolysis according to step B) is carried out. The invention furthermore relates to a method for producing alkyl(meth)acrylates from polymers, moulding compounds and moulded bodies, wherein a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid is carried out in accordance with the method described above.

摘要翻译： 本发明涉及一种由羰基化合物和氢氰酸制备羧酸酰胺的方法，包括以下步骤：a）使羰基化合物与氢氰酸反应生成羟基羧酸腈，B）水解得到的羟基羧酸腈 步骤A）在包含二氧化锰的催化剂存在下，其中相对于氢氰酸使用摩尔过量的羰基化合物以使羰基化合物与氢氰酸根据步骤A）反应，并将步骤A中获得的反应混合物 ）在根据步骤B）进行水解之前未经蒸馏纯化。 本发明还涉及从聚合物，成型化合物和成型体制备（甲基）丙烯酸烷基酯的方法，其中根据上述方法由羰基化合物和氢氰酸制备羧酸酰胺的方法。