公开(公告)号：US20170036997A1

公开(公告)日：2017-02-09

申请号：US15305923

申请日：2015-04-21

Applicant: BASF SE

Inventor： Manfred HEILIG ,  Thomas SCHULZ ,  Torsten MATTKE ,  Filip NEVEJANS ,  Kai THIELE

IPC: C07C263/10

CPC classification number: C07C263/10 ,  C07C265/12

Abstract: The invention relates to a process for preparing isocyanates by reacting primary amines with phosgene in a solvent, where the solvent comprises a dialkyl carbonate.

Abstract translation: 本发明涉及通过使伯胺与光气在溶剂中反应制备异氰酸酯的方法，其中溶剂包括碳酸二烷基酯。

公开(公告)号：US20220073490A1

公开(公告)日：2022-03-10

申请号：US17056750

申请日：2019-05-08

Applicant: BASF SE ,  Kolon Plastics Inc.

Inventor： Thomas HEITZ ,  Marvin KRAMP ,  Manfred HEILIG ,  HyunSoo CHANG ,  JongMoon KIM ,  In Gi CHO

IPC: C07D317/12

Abstract: The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit (20) wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column (30) from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (40), withdrawing a waste water stream from the bottom of the waste water column, recycling a distillate stream (42) from the waste water column to the phase separation unit, and withdrawing a side stream (43) containing methanol from a stage below the feed stage of the waste water column.

公开(公告)号：US20180346414A1

公开(公告)日：2018-12-06

申请号：US16057482

申请日：2018-08-07

Applicant: BASF SE

Inventor： Manfred HEILIG ,  Thomas SCHULZ ,  Torsten MATTKE ,  Filip NEVEJANS ,  Kai THIELE ,  Stefan MAIXNER

IPC: C07C263/10 ,  C07C265/12

CPC classification number: C07C263/10 ,  C07C265/12

Abstract: The invention relates to a process for preparing isocyanates by reacting primary amines with phosgene in a solvent, where the solvent comprises a dialkyl carbonate.

公开(公告)号：US20210403447A1

公开(公告)日：2021-12-30

申请号：US17056741

申请日：2019-05-08

Applicant: BASF SE ,  Kolon Plastics Inc.

Inventor： Thomas HEITZ ,  Marvin KRAMP ,  Manfred HEILIG ,  HyunSoo CHANG ,  JongMoon KIM ,  In Gi CHO

IPC: C07D317/12

Abstract: The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit (20) wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column (30) from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (40), withdrawing a waste water stream from the bottom of the waste water column, withdrawing a side stream (42) from a stage between the feed stage and the reflux stage of the waste water column and recycling this stream (42) to the phase separation unit, and withdrawing a distillate stream (43) containing methanol from the waste water column.

公开(公告)号：US20150344621A1

公开(公告)日：2015-12-03

申请号：US14822921

申请日：2015-08-11

Applicant: BASF SE

Inventor： Frank HUETTEN ,  Otto MACHHAMMER ,  Thomas DANIEL ,  Markus OTTENBACHER ,  Daniel PFEIFFER ,  Stefanie HERZOG ,  Manfred HEILIG ,  Klaus Joachim MUELLER-ENGEL

IPC: C08G63/81

CPC classification number: C08G63/81 ,  C07C51/252 ,  C07C51/42 ,  C07C51/47 ,  C07C57/04 ,  Y02P20/582

Abstract: An aqueous solution comprising acrylic acid and the conjugate base thereof in a total amount of at least 10% by weight, based on the weight of the aqueous solution, and propionic acid and the conjugate base thereof, formic acid and the conjugate base thereof, acetic acid and the conjugate base thereof, benzoic acid and the conjugate base thereof, maleic anhydride, maleic acid and the conjugate bases thereof, phthalic anhydride, phthalic acid and the conjugate bases thereof, acrolein, benzaldehyde, 2-furaldehyde, and at least 20 mol % of at least one alkali metal cation; process for preparing this solution; and the use of this solution for preparation of polymer by free-radical polymerization.

Abstract translation: 包含丙烯酸及其共轭碱的水溶液的总量为至少10重量％，基于水溶液的重量，丙酸及其共轭碱，甲酸及其共轭碱，乙酸 酸及其共轭碱，苯甲酸及其共轭碱，马来酸酐，马来酸及其共轭碱，邻苯二甲酸酐，邻苯二甲酸及其共轭碱，丙烯醛，苯甲醛，2-糠醛，和至少20摩尔 ％的至少一种碱金属阳离子; 制备该溶液的方法; 以及使用该溶液通过自由基聚合制备聚合物。