公开(公告)号：US10308579B2

公开(公告)日：2019-06-04

申请号：US15759919

申请日：2016-12-06

Applicant: SABIC Global Technologies B.V.

Inventor： Satish Chandra Pandey ,  Gaurav Mediratta ,  Alvaro Carrillo

IPC: C07C37/20 ,  C07C39/16 ,  H01M10/6551 ,  H01M10/613 ,  H01M10/052 ,  H01M2/10 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0587

Abstract: An improved method of manufacture of a bisphenol comprises heating a monohydric phenol to a first temperature sufficient to melt the monohydric phenol; adding a carbonyl compound to 2.0-3.0 molar equivalents, based on the moles of carbonyl compound, of the monohydric phenol in the presence of catalytic amounts of an organosulfonic acid catalyst and a reaction promoter at a second temperature sufficient to maintain unreacted monohydric phenol in a molten state; increasing the temperature to a third temperature higher than the second temperature, and mixing for a time sufficient to produce the bisphenol in a yield of 80 to 100%, based on the amount of carbonyl compound; wherein mineral acids, Lewis acids, and ion exchange resins are not used. The method is applicable to the manufacture of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, a useful intermediate for the manufacture of bi-functional poly(phenylene ether)s.

公开(公告)号：US20180265441A1

公开(公告)日：2018-09-20

申请号：US15759919

申请日：2016-12-06

Applicant: SABIC Global Technologies B.V.

Inventor： Satish Chandra Pandey ,  Gaurav Mediratta ,  Alvaro Carrillo

IPC: C07C37/20 ,  C07C39/16

CPC classification number: C07C37/20 ,  C07C39/16 ,  C07C2527/03 ,  H01M2/1077 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/6551 ,  H01M2300/0065 ,  Y02T10/7011

Abstract: An improved method of manufacture of a bisphenol comprises heating a monohydric phenol to a first temperature sufficient to melt the monohydric phenol; adding a carbonyl compound to 2.0-3.0 molar equivalents, based on the moles of carbonyl compound, of the monohydric phenol in the presence of catalytic amounts of an organosulfonic acid catalyst and a reaction promoter at a second temperature sufficient to maintain unreacted monohydric phenol in a molten state; increasing the temperature to a third temperature higher than the second temperature, and mixing for a time sufficient to produce the bisphenol in a yield of 80 to 100%, based on the amount of carbonyl compound; wherein mineral acids, Lewis acids, and ion exchange resins are not used. The method is applicable to the manufacture of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, a useful intermediate for the manufacture of bi-functional poly(phenylene ether)s.