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1. EP3484843 - MANUFACTURE OF BISPHENOL A

Office European Patent Office
Application Number 17751134
Application Date 10.07.2017
Publication Number 3484843
Publication Date 22.05.2019
Publication Kind B1
IPC
C07C 37/20
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
11by reactions increasing the number of carbon atoms
20using aldehydes or ketones
C07C 37/84
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
68Separation; Purification; Stabilisation; Use of additives
70by physical treatment
84by crystallisation
C07C 39/16
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
39Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
12polycyclic with no unsaturation outside the aromatic rings
15with all hydroxy groups on non-condensed rings
16Bis(hydroxy phenyl)alkanes; Tris(hydroxy phenyl)alkanes
CPC
C07C 37/20
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
11by reactions increasing the number of carbon atoms
20using aldehydes or ketones
C07C 37/84
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
37Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
68Purification; separation; Use of additives, e.g. for stabilisation
70by physical treatment
84by crystallisation
C07C 39/16
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
39Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
12polycyclic with no unsaturation outside the aromatic rings
15with all hydroxy groups on non-condensed rings ; , e.g. phenylphenol
16Bis-(hydroxyphenyl) alkanes; Tris-(hydroxyphenyl)alkanes
Applicants SABIC GLOBAL TECHNOLOGIES BV
Inventors EIJSBOUTS PAULUS JOHANNES MARIA
HEININK RENE
Designated States
Priority Data 16179051 12.07.2016 EP
Title
(DE) HERSTELLUNG VON BISPHENOL A
(EN) MANUFACTURE OF BISPHENOL A
(FR) PRODUCTION DE BISPHÉNOL A
Abstract
(EN)
The invention is directed to a method for the manufacture of bisphenol A, to the use of acid in a method for crystallisation of bisphenol A/phenol adduct, and to bisphenol A/phenol adduct crystals. The method for the manufacture of bisphenol A comprises: a) reacting phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising bisphenol A; and b) crystallising a bisphenol A/phenol adduct from said product mixture, wherein said crystallisation is carried out in the presence of an acid, wherein the total amount of acid present during the crystallisation step is 5 % or less by total weight of the reaction product.

(FR)
L'invention concerne un procédé de fabrication de bisphénol, l'utilisation d'acide dans un procédé de cristallisation du produit d'addition bisphénol A/phénol, et les cristaux d'addition de bisphénol A/phénol. Le procédé de fabrication de bisphénol A consiste à : a) faire réagir du phénol et de l'acétone en présence d'un catalyseur acide pour former un mélange de produits comprenant du bisphénol A; et b) cristalliser un produit d'addition bisphénol A/phénol à partir dudit mélange de produits, ladite cristallisation étant réalisée en présence d'un acide, la quantité totale d'acide présent pendant l'étape de cristallisation étant inférieure ou égale à 5 % en poids total du produit de réaction.