公开(公告)号：US20240157269A1

公开(公告)日：2024-05-16

申请号：US18284313

申请日：2022-03-17

Applicant: BASF SE

Inventor： Ulrich HAMMON ,  Lukas SCHULZ

IPC: B01D3/32

CPC classification number: B01D3/328

Abstract: The present invention relates to a column (1) for a thermal treatment of a mixture of compounds having a tendency to polymerization. The column (1) comprises a mass transfer tray (5) comprising a rising tube (8) having an inlet opening (9) below and an outlet opening (10) above the mass transfer tray (5). The rising tube (8) further comprises a lateral opening (11) above the mass transfer tray close to the upper surface of the mass transfer tray (5). Said rising tube (8) is adapted to form a fountain (13) at the outlet opening (10) by atomization of a liquid fraction of the mixture of compounds from the mass transfer tray that enters through the lateral opening into the rising tube (8). The fountain (13) is sprayed to a spot (16) of the column (1) where polymerization is likely to occur. Furthermore, the present invention relates to a thermal separating process that uses such column (1).

公开(公告)号：US20170129841A1

公开(公告)日：2017-05-11

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 ,  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：US20170121240A1

公开(公告)日：2017-05-04

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: C07C5/03 ,  C07C7/04 ,  C07C5/31

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：US20220259131A1

公开(公告)日：2022-08-18

申请号：US17628897

申请日：2020-07-14

Applicant: BASF SE

Inventor： Kazuhiko AMAKAWA ,  Lukas SCHULZ ,  Michael BENDER ,  Klaus Joachim MUELLER-ENGEL ,  Christian WALSDORFF ,  Signe UNVERRICHT

IPC: C07C51/145 ,  C07C45/50 ,  B01J23/887 ,  B01J35/02

Abstract: A process for the continuous production of either acrolein or acrylic acid as the target product from propene comprising a catalyzed gas phase partial oxidation of propene to yield a product gas containing the target product, transferring the target product in a separating zone from the product gas into the liquid phase and conducting out of the separating zone a stream of residual gas the major portion of which is returned into the partial oxidation and the remaining portion of said stream is purged from the process as off-gas from which synthesis gas can be produced or which can be added to synthesis gas produced otherwise.

公开(公告)号：US20160159724A1

公开(公告)日：2016-06-09

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: C07C51/47

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：US20170129840A1

公开(公告)日：2017-05-11

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: 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, 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; (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：US20170128916A1

公开(公告)日：2017-05-11

申请号：US15348217

申请日：2016-11-10

Applicant: BASF SE

Inventor： Michael LEJKOWSKI ,  Yong LIU ,  Marco HARTMANN ,  Till Christian BRUEGGEMANN ,  Lukas SCHULZ ,  Johannes LIEBERKNECHT ,  Armin LANGE DE OLIVEIRA ,  Stephan A. SCHUNK ,  Andrei-Nicolae PARVULESCU ,  Martin DIETERLE ,  Nicolai Tonio WOERZ ,  Rolf TOMPERS ,  Robert MUELLER

IPC: B01J27/199 ,  C07C51/353 ,  B01J37/08 ,  B01J35/00 ,  B01J37/02

CPC classification number: B01J27/199 ,  B01J23/007 ,  B01J23/14 ,  B01J23/22 ,  B01J23/30 ,  B01J35/0006 ,  B01J37/0205 ,  B01J37/0236 ,  B01J37/024 ,  B01J37/086 ,  B01J37/088 ,  C07C51/353 ,  C07C57/04

Abstract: An oxidic composition comprising vanadium, tungsten, phosphorus, oxygen and optionally tin, where the molar ratio of phosphorus to the sum total of vanadium, tungsten and any tin in the oxidic composition is in the range from 1.4:1 to 2.4:1.

公开(公告)号：US20160031789A1

公开(公告)日：2016-02-04

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 ,  C07C45/78 ,  C07C45/32

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。