公开(公告)号：US20170267627A1

公开(公告)日：2017-09-21

申请号：US15500197

申请日：2015-07-29

Applicant: BASF SE

Inventor： Piotr MAKARCZYK ,  Boris BREITSCHEIDEL ,  Beatrice RÖSSLER-FEIGEL ,  Kerstin MÜHLHEIMS

IPC: C07C67/56

CPC classification number: C07C67/56 ,  C07C69/80

Abstract: In a process for workup of a crude ester comprising esterification catalyst hydrolysis product in suspended particulate form, a) the crude ester is admixed in an emulsifying tank with 1% to 10% by weight of water and the water is emulsified in the crude ester to obtain a suspoemulsion, b) the suspoemulsion from the emulsifying tank is transferred to an agglomerating tank containing an initial charge of water-undersaturated crude ester, such that a water content below the solubility limit of water in the crude ester is established in the mixture of the suspoemulsion and the initial charge of crude ester, as a result of which the suspended particulate esterification catalyst hydrolysis products form stable agglomerates, and c) the agglomerates formed are filtered off.

公开(公告)号：US20240010603A1

公开(公告)日：2024-01-11

申请号：US18039986

申请日：2021-12-08

Applicant: BASF SE

Inventor： Dominik HERBRECHT ,  Cornelis Hendricus DE RUITER ,  Marvin KRAMP ,  Maike FEUERSTEIN ,  Piotr MAKARCZYK ,  Tile GIESHOFF

IPC: C07C67/08

CPC classification number: C07C67/08

Abstract: The present invention relates to a process for the continuous preparation of (meth)acrylate by reacting an alcohol with a (meth)acrylic acid using at least one control unit which is closed-loop controlled by a sensor (S).

公开(公告)号：US20220177405A1

公开(公告)日：2022-06-09

申请号：US17433700

申请日：2020-02-21

Applicant: BASF SE

Inventor： Piotr MAKARCZYK ,  Boris BREITSCHEIDEL ,  Zsolt SZARKA ,  Sonja JUDAT

IPC: C07C67/303

Abstract: The present invention relates to a process for purifying benzenepolycarboxylic esters and for preparing cyclohexanepolycarboxylic esters by hydrogenating the purified benzenepolycarboxylic esters. The invention further relates to benzenepolycarboxylic esters and cyclohexanepolycarboxylic esters having a small proportion of by-products, especially of dialkyl ethers, and especially to diisononyl cyclohexane-1,2-dicarboxylate having a small proportion of diisononyl ether. The invention also relates to the use of the cyclohexanepolycarboxylic esters as plasticizers, especially in products intended for human contact, such as children's toys, food packaging and medical articles.