General Electric Company

Sabic Global Technolgoies B.v.

Sabic Innovative Plastics IP B.v.

Umesh Krishna Hasyagar

Pramod Shankar Kumbhar

Rathinam Jothi Mahalingam

Jan-Pleun Lens

Gurram Kishan

Paul Eijsbouts

Ramesh Krishnamurti

John William Fulmer

Mohammed Bismillah Ansari

Vijay Dinkar Bodas

Jegadeesh Thampi

Kishan Gurram

Edward Joseph Nesakumar

Prashant Anil Tatake

Hatem Abdallah Belfadhel

Vinod Sankaran Nair

Vinod Kumar Rai

Bharat Singh

Somak Paul

Abdullah Saad Al-Dughaither

Radhakrishna Arakali Srinivasarao

Subash Scindia

Nileshkumar Prakash Kukalyekar

T Tilak Raj

Ashok Shyadligeri

Debjani Kapila

Ritesh Nandy

Guillermo Leal Canelon

Ibrahim S Marhoon-Al

Subrahmanya Bhat K

Paul Somak

Anju S Shukla

Radhakrishna Sreenivasarao Arakali

Ameen Ghamdi-al

AS Radhakrishna

K Subrahmanya Bhat

Pramod Kumbhar

A method of purifying alcohol produced in a process that includes the Oxo process is disclosed. Aldehyde from the Oxo process that remains with the alcohol is removed by a reaction with an alkali sulphite to produce an insoluble adduct and alcohol having a reduced amount of aldehyde mixed with it. The adduct is removed from the alcohol by filtration.

Process for aldehyde removal from alcohols by treatment with bisulphite

Methods for performing a condensation reaction are disclosed. Specifically, various methods for the production of highly-pure bisphenol-A are disclosed in which an attached promoter ion exchange resin catalyst system is combined with a solvent crystallization step.

Promoter catalyst system with solvent purification

A process for preparing 2,2-bis(4-hydroxyphenyl)propane (p,p-bisphenol-A) from 2,4,4-trimethyl-2-(4-hydroxyphenyl)chroman (chroman 1.5) is disclosed. Phenol and chroman 1.5 are contacted over an acidic ion exchange resin at a given temperature for a given period of time. The process results in improved quality of p,p-bisphenol-A, better performance of catalyst, improved raw material usage, and reduced waste.

Process for producing bisphenol-A

A polymer comprising structural units derived from a polycyclic dihydroxy compound of Formula (I) wherein R, Rand Rare independently at each occurrence selected from the group consisting of a cyano functionality, a halogen, an aliphatic functionality having 1 to 10 carbons, a cycloaliphatic functionality having 3 to 10 carbons, and an aromatic functionality having 6 to 10 carbons; wherein each occurrence of 'n', 'm', and &#x201c;p&#x201d; independently has a value of 0, 1, 2, 3, or 4; and wherein the polymer is substantially linear.

Polymers, polymer compositions, and method of preparation

A process for forming a cycloalkylidene bisphenol comprises: reacting a cycloalkanone compound of formula:where [A] is a substituted or an unsubstituted aromatic group, R&#x2013;Rindependently represent a hydrogen or a C&#x2013;Chydrocarbyl group; and 'a' and 'b' are integers independently having values from 0&#x2013;3; with an aromatic hydroxy compound of formula [A]-OH, where [A] is as previously described; at a mole ratio of greater than or equal to about 20, in the presence of a sulfonic acid type ion exchange resin catalyst crosslinked with greater than or equal to about 8 weight percent of divinylbenzene, and a promoter selected from the group consisting of a mercaptan compound and a resorcinol compound; to form a cycloalkylidene bisphenol of formula:where [A], R&#x2013;R, &#x201c;a&#x201d; and &#x201c;b&#x201d; are as previously described. Moreover, any acid catalyst can be used with a resorcinol promoter.

Methods for preparing cycloalkylidene bisphenols

A method of preparing a polycyclic compound containing a ketone functionality comprising:

Preparation of ketone containing cyclic compounds

A process for converting carbonyl-type impurities contained in a phenolic solvent to high-boiling derivatives is provided by contacting the phenolic solvent with a hydrotalcite-type material (HTM). The phenol can be separated from the high-boiling derivatives using conventional separation techniques, such as distillation, so the invention also provides a process for separating carbonyl-type impurities, such as hydroxyacetone (HA), from a phenolic solvent. The process can be applied in the conventional industrial process for converting cumene to phenol to remove carbonyl-type impurities from the phenol product. A process and a facility for producing purified phenol by converting cumene to phenol are provided. In the conversion of cumene to phenol, the phenol often contains carbonyl-type impurities. The phenol and carbonyl-type impurities are reacted in the presence of an HTM to produce phenol and high-boiling derivatives. The phenol may be further purified using conventional separation techniques, such as distillation, to remove the high-boiling derivatives.

Production and purification of phenol: hydroxyacetone removal by hydrotalcite

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Karnataka, India

Umesh Krishna Hasyagar