公开(公告)号：US09776940B2

公开(公告)日：2017-10-03

申请号：US15227392

申请日：2016-08-03

Applicant: BASF SE

Inventor： Tobias Korn ,  Till Blum ,  Travis Carline ,  Christopher Fuchs ,  Darryl Welch ,  Peter Zurowski ,  Volker Schliephake ,  Steffen Rissel ,  Thorsten Friese ,  Ulrich Jaeger ,  Sylke Haremza

IPC: C07C51/43 ,  C07C45/32 ,  C07C51/21 ,  C07C51/245 ,  C07C51/42 ,  C07C45/78 ,  C07C51/235 ,  C07C51/25 ,  C07C51/44 ,  C07C45/35 ,  C07C45/33 ,  C07C45/39 ,  C07C45/38 ,  C07C57/04 ,  C07C51/47

CPC classification number: C07C45/32 ,  C07C45/33 ,  C07C45/35 ,  C07C45/38 ,  C07C45/39 ,  C07C45/783 ,  C07C51/21 ,  C07C51/235 ,  C07C51/245 ,  C07C51/252 ,  C07C51/42 ,  C07C51/43 ,  C07C51/44 ,  C07C51/47 ,  C07C57/04

Abstract: A process for production of acrylic acid includes preparing a product gas mixture by a catalytic gas-phase oxidation of a C3 precursor; cooling and contacting the cooled product gas mixture in an absorption column having at least two cooling loops in countercurrent with an absorbent to obtain an absorbate A, containing the absorbent and absorbed acrylic acid; condensing a high boiler fraction of the product gas mixture in a first cooling loop; condensing a low boiler fraction of the product gas mixture in a second cooling loop; maintaining a temperature of the absorbate A in the second cooling loop at a value of at least 56° C.; removing an acid water stream comprising glyoxal from the absorption column at a side take-off located above the second cooling loop; and removing a stream F of absorbate A from the absorption column at a side take-off, located at a height of the absorption column between the first cooling loop and the second cooling loop.

公开(公告)号：US09388118B2

公开(公告)日：2016-07-12

申请号：US14038972

申请日：2013-09-27

Applicant: BASF SE

Inventor： Ulrich Jaeger ,  Volker Schliephake ,  Ortmund Lang ,  Jochen Petzoldt ,  Tobias Johannes Korn ,  Virginie Bette ,  Claus Hechler

IPC: C07C67/03 ,  C07C67/08 ,  C07C67/54 ,  C07C69/52 ,  C07C67/62

CPC classification number: C07C67/62 ,  C07C67/08 ,  C07C67/54 ,  C07C69/52 ,  C07C69/54

Abstract: A continuous process for preparing (meth)acrylates of C10-alcohol mixtures by reaction of glacial (meth)acrylic acid with an isomer mixture of C10-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C10-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, and the use of a diester of dicarboxylic acids which have been esterified with N-oxyl-containing compounds as polymerization inhibitors in such a process.

Abstract translation: 通过冰（甲基）丙烯酸与由2-丙基庚醇组成的C 10醇作为主要异构体的异构体混合物和至少一种C 10醇2来制备C10-醇混合物的（甲基）丙烯酸酯的连续方法 丙基-4-甲基己醇，2-丙基-5-甲基己醇，2-异丙基庚醇，2-异丙基-4-甲基己醇，2-异丙基-5-甲基己醇和/或2-丙基-4,4-二甲基戊醇， 的二羧酸二酯在这种方法中被N-氧基化合物酯化作为聚合抑制剂。

公开(公告)号：US09206109B2

公开(公告)日：2015-12-08

申请号：US14104165

申请日：2013-12-12

Applicant: BASF SE

Inventor： Tobias Johannes Korn ,  Peter Zurowski ,  Thorsten Friese ,  Sylke Haremza ,  Ulrich Jaeger ,  Steffen Rissel ,  Volker Schliephake

IPC: C07C51/50 ,  C07C67/62

CPC classification number: C07C51/50 ,  C07C67/62 ,  C07C57/04 ,  C07C69/54

Abstract: In a method of stabilizing acrylic compounds, a liquid phase containing at least one acrylic compound is mixed with at least one metal and at least one ligand. The acrylic compound can be acrylic acid, methacrylic acid, and their respective esters. The metal can be copper, manganese, and cerium. The ligand can be a quinoline compound of formula (I), an N-oxide of a compound of formula (I), 2,2″-bis(2,3-dihydro-3-oxoindolylidene), or an aliphatic y-dentate ligand with y being 2-6 and comprising at least two nitrogen atoms joined by aliphatic or aromatic C1-C4 bridges comprising y-2 further coordinating nitrogen atoms or heteroatoms: where X is OH, NH2, O—(C1-C4)-alkyl, O—C(O)—(C1-C4)-alkyl, or O—C(O)-phenyl; R1 is H, or (C1-C4)-alkyl; R2 is H, (C1-C4)-alkyl, Cl, Br, or SO3H; and R3 is H, Cl or Br.

Abstract translation: 在稳定丙烯酸类化合物的方法中，含有至少一种丙烯酸化合物的液相与至少一种金属和至少一种配体混合。 丙烯酸类化合物可以是丙烯酸，甲基丙烯酸及其各自的酯。 金属可以是铜，锰和铈。 配体可以是式（I）的喹啉化合物，式（I）化合物的N-氧化物，2,2“ - 双（2,3-二氢-3-氧代吲哚基）或脂族y-齿状物 配体，y为2-6，并且包含至少两个氮原子，其通过包含y-2进一步配位的氮原子或杂原子的脂族或芳族C1-C4桥连接：其中X是OH，NH 2，O-（C 1 -C 4） - 烷基 ，O-C（O） - （C 1 -C 4） - 烷基或O-C（O） - 苯基; R1是H或（C1-C4） - 烷基; R2是H，（C1-C4） - 烷基，C1，Br或SO3H; 并且R 3是H，Cl或Br。