公开(公告)号：EP3001835B1

公开(公告)日：2017-04-05

申请号：EP14722653.4

申请日：2014-05-07

Applicant: BASF SE

Inventor： DEMMING, Stefanie ,  THOTLA, Suman ,  WITTENBERG, Jens ,  IFFLAND, Gabriele ,  BRÜGGEMANN, Till, Christian ,  HOELZL, Yvonne ,  SIEGEL, Wolfgang ,  FREYER, Stephan

IPC: C07C67/08 ,  C07C67/54 ,  B01D3/14

CPC classification number: C07C67/08 ,  B01D3/141 ,  C07C67/54 ,  C07C69/40

Abstract: The invention relates to a process for continuously preparing di-C1-3-alkyl succinates by reacting succinic acid with an C1-3-alkanol in the presence of a fixed-bed heterogeneous acidic esterification catalyst in a tubular reactor at a temperature in the range of from 60 to 100° C., wherein a mixture, comprising succinic acid, C1-3-alkanol, mono-C1-3-alkyl succinate, di-C1-3-alkyl succinate and water, is formed in a mixing stage and fed to the entrance of the tubular reactor, and wherein 5 to 75% of the outlet flow rate of the tubular reactor are recycled directly to the mixing stage as a recycle stream, and the molar ratio of C1-3-alkanol to succinic acid added to the mixing zone, and not including the C1-3-alkanol and succinic acid at the recycle stream, being in the range of from 2.0 to 9.5. The invention furthermore relates to a process for separating the reactor effluent of an esterification of succinic acid with an C1-3-alkanol to give di-C1-3-alkyl succinates by distillation, wherein the separation is performed in a divided wall column in which C1-3-alkanol and water are removed in a top draw of the column, di-C1-3-alkyl succinate is removed in a side draw of the column, and wherein mono-C1-3-alkyl succinate and succinic acid are removed in a bottom draw of the column.

公开(公告)号：EP2841383B1

公开(公告)日：2016-11-09

申请号：EP13720843.5

申请日：2013-04-24

Applicant: BASF SE

Inventor： FEYEN, Mathias ,  MÜLLER, Ulrich ,  PARVULESCU, Andrei-Nicolae ,  SCHAACK, Bernd, Bastian ,  AHRENS, Sebastian ,  GERHARD, Dirk ,  SON, Sunghee ,  IFFLAND, Gabriele ,  SEELIG, Bianca

IPC: C01B37/02 ,  C01B39/08 ,  C01B39/12 ,  C01B39/40 ,  B01J29/40 ,  B01J29/89

CPC classification number: B01J29/89 ,  B01J29/40 ,  B01J29/405 ,  B01J29/44 ,  B01J29/46 ,  B01J29/48 ,  B01J29/70 ,  B01J29/88 ,  B01J35/002 ,  C01B37/02 ,  C01B39/082 ,  C01B39/12 ,  C01B39/40

公开(公告)号：EP2872448A1

公开(公告)日：2015-05-20

申请号：EP13732592.4

申请日：2013-07-02

Applicant: BASF SE

Inventor： SCHRÖDLE, Simon ,  DRANSFELD, Peter ,  IFFLAND, Gabriele ,  BÖHLING, Ralf

IPC: C01G51/10

CPC classification number: C01G51/10 ,  C01P2006/80

Abstract: The invention relates to a method for producing an aqueous cobalt sulphate solution having a pH value in the region of between 5 - 8, characterized in that (a) a metallic cobalt dissolves in aqueous sulfuric acid in an atmosphere low in oxygen, hydrogen or inert gas, and b) the thus produced acidic cobalt sulphate solution purifies in an ion exchanger.

公开(公告)号：EP2841383A1

公开(公告)日：2015-03-04

申请号：EP13720843.5

申请日：2013-04-24

Applicant: BASF SE

Inventor： FEYEN, Mathias ,  MÜLLER, Ulrich ,  PARVULESCU, Andrei-Nicolae ,  SCHAACK, Bernd, Bastian ,  AHRENS, Sebastian ,  GERHARD, Dirk ,  SON, Sunghee ,  IFFLAND, Gabriele ,  SEELIG, Bianca

IPC: C01B37/02 ,  B01J29/89 ,  C01B39/08 ,  C01B39/12 ,  C01B39/40

CPC classification number: B01J29/89 ,  B01J29/40 ,  B01J29/405 ,  B01J29/44 ,  B01J29/46 ,  B01J29/48 ,  B01J29/70 ,  B01J29/88 ,  B01J35/002 ,  C01B37/02 ,  C01B39/082 ,  C01B39/12 ,  C01B39/40

Abstract: The present invention relates to a process for the preparation of a zeolitic material comprising the steps of: (1) providing a mixture comprising one or more sources for YO
2 and one or more alkenyltrialkylammonium cation R
1 R
2 R
3 R
4 N
+ -containing compounds as structure directing agent; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material; wherein Y is a tetravalent element, and wherein R
1 , R
2 , and R
3 independently from one another stand for alkyl; and R
4 stands for alkenyl, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.

公开(公告)号：EP2812365A1

公开(公告)日：2014-12-17

申请号：EP13702226.5

申请日：2013-02-01

Applicant: BASF SE

Inventor： FLORE, Karin ,  DANIEL, Thomas ,  VOITL, Agnes ,  IFFLAND, Gabriele

IPC: C08F220/06

CPC classification number: C08F220/06

Abstract: The invention relates to a method for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution or monomer suspension, comprising at least one ethylenically unsaturated, acid-group-bearing monomer, which monomer is at least partially neutralized by adding a neutralizing agent, wherein the neutralizing agent is filtered before being added.

Abstract translation: 本发明涉及一种通过聚合含有至少一种烯属不饱和含酸基单体的单体水溶液或单体悬浮液来制备吸水聚合物颗粒的方法，该单体通过加入中和剂至少部分中和， 其中中和剂在加入之前被过滤。