公开(公告)号：US09593065B2

公开(公告)日：2017-03-14

申请号：US14794955

申请日：2015-07-09

Applicant: BASF SE

Inventor： Lukas Schulz ,  Nicolai Tonio Woerz ,  Tim Blaschke ,  Marco Hartmann ,  Frank Huetten

IPC: C07C51/347 ,  B01J23/50 ,  B01J27/198 ,  C07C57/04 ,  C07C45/38 ,  C07C51/353 ,  C07C45/32 ,  C07C45/78

CPC classification number: C07C51/347 ,  B01J23/50 ,  B01J27/198 ,  C07C45/32 ,  C07C45/38 ,  C07C45/783 ,  C07C51/353 ,  C07C57/04 ,  C07C47/04

Abstract: A process for preparing acrylic acid from methanol and acetic acid, comprising (i) contacting a gaseous stream S0 comprising methanol, oxygen and inert gas with an oxidation catalyst to obtain a gaseous stream S1 comprising formaldehyde and inert gas; (ii) removing at least a portion of the inert gas present in S1 from at least a portion of the formaldehyde present in S1 by absorbing this formaldehyde in an absorbent to obtain a gaseous stream S2 comprising the portion of the inert gas removed, and to obtain a stream S3 comprising absorbent and absorbate comprising formaldehyde; (iii) optionally removing a portion or the entirety of the absorbent present in stream S3, such that a stream S3a remains from stream S3, and producing a stream S4 from at least stream S3 or stream S3a and a stream S5 comprising acetic acid; and (iv) contacting stream S4 in gaseous form with an aldol condensation catalyst to obtain a gaseous stream S6 comprising acrylic acid.

Abstract translation: 一种从甲醇和乙酸制备丙烯酸的方法，包括（i）使包含甲醇，氧气和惰性气体的气流S0与氧化催化剂接触以获得包含甲醛和惰性气体的气流S1; （ii）通过在吸收剂中吸收该甲醛从S1中存在的甲醛的至少一部分除去S1中存在的至少一部分惰性气体，以获得包含去除部分惰性气体的气流S2，并且 获得包含含甲醛的吸收剂和吸收剂的流S3; （iii）任选地除去流S3中存在的吸收剂的一部分或全部，使得流S3a从流S3保留，并从至少流S3或流S3a和包含乙酸的流S5产生流S4; 和（iv）将气态的流S4与醛醇缩合催化剂接触以获得包含丙烯酸的气流S6。

公开(公告)号：US09771314B2

公开(公告)日：2017-09-26

申请号：US15348460

申请日：2016-11-10

Applicant: BASF SE

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

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

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

Abstract: 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.

公开(公告)号：US09738583B2

公开(公告)日：2017-08-22

申请号：US15348130

申请日：2016-11-10

Applicant: BASF SE

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

IPC: C07C51/353

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

Abstract: 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

Applicant: BASF SE

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

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

CPC classification number: C07C51/47 ,  C07C51/43 ,  C07C57/04 ,  C07C67/343

Abstract: 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.

Abstract translation: 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：US09873646B2

公开(公告)日：2018-01-23

申请号：US15305111

申请日：2015-04-20

Applicant: BASF SE

Inventor： Michael Hübner ,  Lukas Schulz ,  Pawel Czajka ,  Oliver Christian Gobin ,  Nicole Holub ,  Daniel Pfeiffer ,  Andreas Weickgenannt ,  Marta Porta Garcia

IPC: C07C5/10 ,  C07C5/27 ,  C07C5/31 ,  C07C5/03 ,  C07C7/04

CPC classification number: C07C5/03 ,  C07C5/10 ,  C07C5/29 ,  C07C5/31 ,  C07C7/04 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/08 ,  C07C2523/46 ,  C07C2523/745 ,  C07C2523/75 ,  C07C2523/755 ,  C07C2527/08 ,  C07C2527/11 ,  C07C2527/1213 ,  C07C2527/126 ,  C07C2527/135 ,  C07C2531/02 ,  C07C2601/14 ,  C07C13/18

Abstract: The present invention relates to a process for preparing cyclohexane from methylcyclopentane (MCP) and benzene. In the context of the present invention, MCP and benzene are constituents of a hydrocarbon mixture (HM1) additionally comprising dimethylpentanes (DMP), possibly cyclohexane and possibly at least one compound (low boiler) selected from acyclic C5-C6-alkanes and cyclopentane. First of all, benzene is converted in a hydrogenation step to cyclohexane (that present in the hydrocarbon mixture (HM2)), while MCP is isomerized in the presence of a catalyst, preferably of an acidic ionic liquid, to cyclohexane. After the hydrogenation but prior to the isomerization the dimethylpentanes (DMP) are removed, with initial removal of the cyclohexane present in the hydrocarbon mixture (HM2) together with DMP. This cyclohexane already present prior to the isomerization can be separated again from DMP in a downstream rectification step and isolated and/or recycled into the process for cyclohexane preparation. Between the DMP removal and MCP isomerization—if low boilers are present in the hydrocarbon mixture (HM1)—low boilers are, optionally removed. After the isomerization, the cyclohexane is isolated, optionally with return of unisomerized MCP and optionally of low boilers. Preferably, cyclohexane and/or low boilers are present in the hydrocarbon mixture (HM1), and so a low boiler removal is preferably conducted between the DMP removal from isomerization. It is additionally preferable that the removal of the cyclohexane from DMP is additionally conducted, meaning that the cyclohexane component which arises in the benzene hydrogenation and may be present in the starting mixture (HM1) is isolated and hence recovered.

公开(公告)号：US20140018595A1

公开(公告)日：2014-01-16

申请号：US13937373

申请日：2013-07-09

Applicant: BASF SE

Inventor： Katharina Spuhl ,  Stefan Bitterlich ,  Lukas Schulz ,  Michael Hübner

IPC: C07C7/00

CPC classification number: C07C7/00 ,  C07C5/29 ,  C07C7/04 ,  C07C2601/14 ,  C07C13/18

Abstract: The present invention relates to a process for treating an output from a chemical reaction, wherein the chemical reaction is performed in the presence of an ionic liquid. The chemical reaction is preferably an isomerization. In a rectifying column with a partial condenser, the hydrogen halide is drawn off from a mixture which originates from the chemical reaction and comprises at least one organic compound, preferably at least one hydrocarbon, and at least one hydrogen halide.

Abstract translation: 本发明涉及一种处理化学反应输出的方法，其中化学反应是在离子液体存在下进行的。 化学反应优选为异构化。 在具有部分冷凝器的精馏塔中，卤化物从起始于化学反应的混合物中排出，并且包含至少一种有机化合物，优选至少一种烃和至少一种卤化氢。

公开(公告)号：US20140018588A1

公开(公告)日：2014-01-16

申请号：US13937247

申请日：2013-07-09

Applicant: BASF SE

Inventor： Katharina Spuhl ,  Markus Schmitt ,  Jochen Bürkle ,  Joni Joni ,  Steffen Tschrischwitz ,  Daniel Pfeiffer ,  Steffen Bitterlich ,  Lukas Schulz ,  Michael Hübner

IPC: C07C5/29

CPC classification number: C07C5/29 ,  C07C2527/125 ,  C07C2601/14 ,  C07C13/18

Abstract: The present invention relates to a process for isomerizing at least one hydrocarbon in the presence of an acidic ionic liquid and at least one hydrogen halide (HX) in an apparatus (V1), wherein the hydrogen halide (HX) is removed in an apparatus (V2) in gaseous form from the isomerization product and is at least partly recycled into apparatus (V1).

Abstract translation: 本发明涉及在装置（V1）中在酸性离子液体和至少一种卤化氢（HX）存在下使至少一种烃异构化的方法，其中在设备中除去卤化氢（HX）（ V2），并且至少部分地再循环到装置（V1）中。