公开(公告)号：US20160207871A1

公开(公告)日：2016-07-21

申请号：US14915448

申请日：2014-08-29

Applicant: OXEA GMBH

Inventor： Jens KUBITSCHKE ,  Thorsten KREICKMANN ,  Jörg ARNOLD ,  Matthias KRAMER ,  Heinz STRUTZ

IPC: C07C67/60

CPC classification number: C07C67/60 ,  C07C67/08 ,  C07C67/56 ,  C07C69/28

Abstract: A batchwise process for aftertreatment of polyol esters prepared by reacting polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH   (II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, or a hydroxyalkyl radical having 1 to 5 carbon atoms, preferably the hydroxymethyl radical, m is an integer from 1 to 10, preferably 1 to 8 and especially 1, 2, 3 or 4, o is an integer from 2 to 15, preferably 2 to 8 and especially 2, 3, 4 or 5, with excess linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms and having a lower boiling point than the polyols used. The process is carried out in the presence of a Lewis acid and in the presence of an adsorbent, while removing the water formed, characterized in that the excess monocarboxylic acid is removed by distillation and water is added to the crude ester obtained at a temperature below the boiling point of water at the particular pressure and the crude ester with added water is aftertreated with avoidance of basic compounds, and the sparingly soluble conversion products and the adsorbent present in the esterification reaction are filtered off.

Abstract translation: 用于后处理多元醇酯的分批方法，其通过使通式（II）的多元醇H - （ - O - [ - CR 1 R 2 - ] m - ）o-OH（II）反应制备，其中R 1和R 2各自独立地为氢， 具有1至5个碳原子的烷基，优选甲基，乙基或丙基，或具有1至5个碳原子的羟烷基，优选羟甲基，m为1至10，优选1至8，特别是1,2 ，3或4，o是2至15，优选2至8，特别是2，4或5的整数，其中具有3至20个碳原子并具有比其低的沸点的过量的直链或支链脂肪族单羧酸 使用多元醇 该方法在路易斯酸存在下并且在吸附剂存在下进行，同时除去形成的水，其特征在于通过蒸馏除去过量的单羧酸，并将水加入到在低于 在特定压力下的水的沸点和加入水的粗酯进行后处理，避免碱性化合物，并且滤出酯化反应中存在的微溶的转化产物和吸附剂。