公开(公告)号：US09809526B2

公开(公告)日：2017-11-07

申请号：US15311541

申请日：2015-05-13

申请人： BASF SE

发明人： Tim Blaschke ,  Ortmund Lang ,  Marta Zajaczkowski-Fischer ,  Marco Hartmann

IPC分类号： C07C51/46 ,  C07C51/377 ,  C07C51/43

CPC分类号： C07C51/46 ,  C07C51/377 ,  C07C51/43 ,  C07C57/04

摘要： The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid, wherein an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is converted to acrylic acid in the liquid phase in a first step and aqueous acrylic acid is distilled out of the liquid phase, and the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase in a second step.

公开(公告)号：US09540305B2

公开(公告)日：2017-01-10

申请号：US14724244

申请日：2015-05-28

申请人： BASF SE

发明人： Andrei-Nicolae Parvulescu ,  Armin Lange De Oliveira ,  Stephan A. Schunk ,  Nicolai Tonio Woerz ,  Marco Hartmann ,  Kazuhiko Amakawa ,  Michael Goebel ,  Yong Liu ,  Michael Lejkowski

IPC分类号： C07C51/347 ,  C07C51/353 ,  B01J29/82 ,  B01J29/84 ,  B01J29/83 ,  B01J29/85

CPC分类号： C07C51/347 ,  B01J29/82 ,  B01J29/83 ,  B01J29/84 ,  B01J29/85 ,  C07C51/353 ,  C07C2529/82 ,  C07C2529/83 ,  C07C2529/84 ,  C07C2529/85 ,  C07C57/04

摘要： A process for preparing acrylic acid, comprising (i) providing a stream S4 comprising a formaldehyde source and acetic acid; (ii) contacting stream S4 with an aldol condensation catalyst comprising a zeolitic material comprising aluminum in the framework structure to obtain a stream S6 comprising acrylic acid, the framework structure of the zeolitic material in (ii) comprising YO2 and Al2O3, and Y being a tetravalent element; where the total content of alkali metal and alkaline earth metal in the zeolitic material in (ii), calculated as alkali metal oxide and alkaline earth metal oxide, is from 0% to 0.1% by weight, based in each case on the total weight of the zeolitic material, and where the aldol condensation catalyst in (ii) comprises, outside the framework structure of the zeolitic material present therein, from 0% to 1% by weight of vanadium, based on vanadium as vanadium(V) oxide.

摘要翻译： 一种制备丙烯酸的方法，包括（i）提供包含甲醛源和乙酸的料流S4; （ii）使流体S4与包含框架结构中包含铝的沸石材料的醛醇缩合催化剂接触以获得包含丙烯酸的流S6，（ii）中的沸石材料的框架结构包含YO 2和Al 2 O 3，Y是 四价元素 其中（ii）中的沸石材料中的碱金属和碱土金属的总含量以碱金属氧化物和碱土金属氧化物计算为0〜0.1重量％，基于每种情况下的总重量 沸石材料，并且其中（ii）中的醛醇缩合催化剂在其中存在的沸石材料的骨架结构外包含以钒为氧化钒（V）的钒为0至1重量％的钒。

公开(公告)号：US10252970B2

公开(公告)日：2019-04-09

申请号：US15021286

申请日：2014-08-21

申请人： BASF SE

发明人： Tim Blaschke ,  Ortmund Lang ,  Nicolai Tonio Wörz ,  Christian Raith ,  Marco Hartmann ,  Marta Zajaczkowski-Fischer

IPC分类号： C07C51/44 ,  C07C57/04 ,  C07C51/377

摘要： The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.

公开(公告)号：US09630900B2

公开(公告)日：2017-04-25

申请号：US14917983

申请日：2014-09-02

申请人： BASF SE

发明人： Tim Blaschke ,  Ortmund Lang ,  Nicolai Tonio Wörz ,  Christian Raith ,  Marco Hartmann ,  Marta Zajaczkowski-Fischer

IPC分类号： C07C51/00 ,  C07C51/377 ,  C07C51/44 ,  C07C51/50 ,  C07C57/04

CPC分类号： C07C51/377 ,  C07C51/44 ,  C07C51/50 ,  C07C57/04

摘要： The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.

公开(公告)号：US20160221916A1

公开(公告)日：2016-08-04

申请号：US15021286

申请日：2014-08-21

申请人： BASF SE

发明人： Tim Blaschke ,  Ortmund Lang ,  Nicolai Tonio Wörz ,  Christian Raith ,  Marco Hartmann ,  Marta Zajaczkowski-Fischer

IPC分类号： C07C51/377 ,  C07C57/04 ,  C07C51/44

CPC分类号： C07C51/377 ,  C07C51/44 ,  C07C57/04

摘要： The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.

摘要翻译： 本发明涉及一种在液相中将3-羟基丙酸水溶液脱水为丙烯酸的方法，其中从液相中连续除去水性丙烯酸，并且3-羟基丙酸水溶液和/或液相含量高 低聚3-羟基丙酸。

公开(公告)号：US09738583B2

公开(公告)日：2017-08-22

申请号：US15348130

申请日：2016-11-10

申请人： BASF SE

发明人： Marco Hartmann ,  Lukas Schulz ,  Nicolai Tonio Woerz ,  Yong Liu ,  Till Christian Brueggemann ,  Michael Lejkowski ,  Johannes Lieberknecht

IPC分类号： C07C51/353

CPC分类号： C07C51/353 ,  B01J23/002 ,  B01J37/0201 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/3706 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/69

摘要： A process for preparing acrylic acid from formaldehyde and acetic acid, is performed by (i) providing a gaseous stream S1 comprising formaldehyde, acetic acid, oxygen and water, where the formaldehyde content of stream S1 is in the range from 8% to 18% by volume, based on the total volume of stream S1, the ratio of the volumes of acetic acid to formaldehyde is in the range from 0.6:1 to 1.1:1, and the molar ratio of oxygen to the total amount of organic carbon is in the range from 0.02:1 to 0.15:1; and (ii) contacting stream S1 with an aldol condensation catalyst in a reaction zone to obtain a gaseous stream S2 containing acrylic acid.

公开(公告)号：US09458080B2

公开(公告)日：2016-10-04

申请号：US14958207

申请日：2015-12-03

申请人： BASF SE

发明人： Nicolai Tonio Woerz ,  Lukas Schulz ,  Tim Blaschke ,  Marco Hartmann ,  Feelly Ruether ,  Yan Li

IPC分类号： C07C51/43 ,  C07C57/04 ,  C07C67/343 ,  C07C51/47

CPC分类号： C07C51/47 ,  C07C51/43 ,  C07C57/04 ,  C07C67/343

摘要： A process for obtaining acrylic acid, comprising (a) providing a liquid stream S7 comprising acetic acid and acrylic acid, where the molar ratio of acetic acid to acrylic acid in stream S7 is greater than 1:1, (b-1) crystallizing a portion of the acetic acid present in stream S7 to obtain solid crystallized acetic acid in its mother liquor, (b-2) separating the mother liquor from the acetic acid crystallized in (b-1) to obtain the solid crystallized acetic acid and a liquid stream S8 comprising acrylic acid and acetic acid, (c) separating stream S8 into at least one stream S10 depleted of acrylic acid compared to S8 and a stream S11 enriched in acrylic acid compared to S8.

摘要翻译： 一种获得丙烯酸的方法，包括（a）提供包含乙酸和丙烯酸的液体流S7，其中料流S7中乙酸与丙烯酸的摩尔比大于1:1，（b-1）使 存在于料流S7中的乙酸部分以在其母液中获得固体结晶的乙酸，（b-2）将母液从（b-1）中结晶的乙酸分离，得到固体结晶的乙酸和液体 流S8包含丙烯酸和乙酸，（c）与S8相比，将流S8分离成至少一个缺乏丙烯酸的流S10，和与S8相比富含丙烯酸的流S11。

公开(公告)号：US09446390B2

公开(公告)日：2016-09-20

申请号：US14724204

申请日：2015-05-28

申请人： BASF SE

发明人： Andrei-Nicolae Parvulescu ,  Armin Lange De Oliveira ,  Michael Lejkowski ,  Nicolai Tonio Woerz ,  Marco Hartmann ,  Kazuhiko Amakawa ,  Michael Goebel ,  Ulrich Mueller ,  Mathias Feyen ,  Yong Liu

IPC分类号： B01J29/70 ,  B01J29/40 ,  C07C51/353

CPC分类号： B01J29/7088 ,  B01J29/405 ,  B01J29/7007 ,  B01J29/7038 ,  B01J29/7057 ,  C07C51/353 ,  C07C57/04

摘要： The present invention relates to a process for preparing acrylic acid comprising (i) providing a stream comprising a formaldehyde source and acetic acid and (ii) contacting this stream with an aldol condensation catalyst comprising a zeolitic material, wherein the framework structure of the zeolitic material in (ii) includes Si and O, and has a molar Al:Si ratio of 0:1 to 0.001:1, and wherein the framework structure of the zeolitic material in (ii), in addition to Si and any Al, comprises one or more elements selected from the group consisting of tetravalent elements Y other than Si and trivalent elements X other than Al.

摘要翻译： 本发明涉及一种制备丙烯酸的方法，其包括（i）提供包含甲醛源和乙酸的流，和（ii）使该流与包含沸石材料的醛醇缩合催化剂接触，其中沸石材料的骨架结构 在（ii）中包括Si和O，并且具有0:1至0.001:1的摩尔Al:Si比，并且其中除了Si和任何Al之外，（ii）中的沸石材料的骨架结构包含一个 或更多选自除Si以外的四价元素Y和除Al以外的三价元素X的元素。

公开(公告)号：US09434673B2

公开(公告)日：2016-09-06

申请号：US14277384

申请日：2014-05-14

申请人： BASF SE

发明人： Philipp Gruene ,  Cornelia Katharina Dobner ,  Marco Hartmann

IPC分类号： B01J27/198 ,  C07C51/347 ,  C07C67/347 ,  C07C51/353

CPC分类号： C07C51/347 ,  C07C51/353 ,  C07C57/04

摘要： Process for preparing a vinylidenecarboxylic acid or ester thereof, wherein a reaction gas comprising gaseous formaldehyde, molecular oxygen and an alkycarboxylic acid or ester thereof is brought into contact with a solid catalyst whose active composition comprises a vanadium-phosphorus oxide having an average oxidation state of vanadium of from +4.40 to +5.0 to give a product gas comprising the vinylidenecarboxylic acid or ester thereof.

摘要翻译： 制备亚乙烯基羧酸或其酯的方法，其中将包含气态甲醛，分子氧和其烷基羧酸或其酯的反应气体与活性组合物包含平均氧化态的钒 - 磷氧化物的固体催化剂接触 钒为+4.40〜+ 5.0，得到含有亚乙烯基羧酸或其酯的产物气体。

公开(公告)号：US09771314B2

公开(公告)日：2017-09-26

申请号：US15348460

申请日：2016-11-10

申请人： BASF SE

发明人： Marco Hartmann ,  Lukas Schulz ,  Nicolai Tonio Woerz ,  Yong Liu ,  Till Christian Brueggemann ,  Michael Lejkowski ,  Johannes Lieberknecht

IPC分类号： C07C51/353 ,  C07C57/04 ,  C07C51/347 ,  B01J27/198 ,  B01J29/70 ,  B01J35/00 ,  B01J35/10 ,  C07C51/43

CPC分类号： C07C51/353 ,  B01J27/198 ,  B01J29/7057 ,  B01J35/002 ,  B01J35/1019 ,  C07C51/347 ,  C07C51/43 ,  C07C57/04

摘要： The invention relates to a process for preparing acrylic acid from formaldehyde and acetic acid, comprising (i) providing a gaseous stream S1 comprising formaldehyde, acetic acid and acrylic acid, where the molar ratio of acrylic acid to the sum total of formaldehyde and acetic acid in stream S1 is in the range from 0.005:1 to 0.3:1; (ii) contacting stream S1 with an aldol condensation catalyst in a reaction zone to obtain a gaseous stream S2 comprising acrylic acid.