General Electric Company

Sabic Innovative Plastics IP B.v.

General Electric Company and Illa International

John William Fulmer

Andrey Vladimirovich Zinenkov

William D Kight

Arkady Samuilovich Dyckman

Pramod Shankar Kumbhar

Boris I Gorovits

Bharat Singh

Prashant Anil Tatake

Viktor Vladimirovich Pinson

Andrei K Griaznov

Michael J Cipullo

Jegadeesh Thampi

Anatoly D Sorokin

Irina I Vasilieva

Leontii M Krasnov

Yury Alekseevich Shavandin

Genrikh Petrovich Yavshits

Vadim P Boyarsky

Eugene Edward Scott

Vladimir Mikhailovich Zakoshansky

Bradley Norman Geyer

Boris V Krasy

Arun Kumar

Paul William Buckley

John C Schmidhauser

Vladimir Mikhailovitch Zakoshansky

Umesh Krishna Hasyagar

Andrey Yurievich Sokolov

Sarada Gopinathan

Rupesh Bhikaji Pawar

Changaramponnath Gopinathan

Tara Healy Wight

Yury I Petrov

Jacob Lee Oberholtzer

Andrey Jurievich Sokolov

Valery Jurievich Aristovich

Sergey N Chernukhin

Alexander S Malinovskii

Sabyasachi Mandal

Yury Valerievich Aristovich

Randall Todd Bishop

R Jothi Mahalingam

Alexander S Malinovski

Nitin Vaish

Yuri Valerievich Aristovich

Arkadys S Dyckman

Valeri Yurievich Aristovich

Svetlana Ananyevna Ulyanova

Valentina Y Shefter

Sergey Nikolaevich Voyakin

Yurii I Petrov

Marakani Venkata Ramani

Sergey N Chernukhim

Vladimir Yevgenyevich Pastor

Andrew H Farrell

David L Boggs

Pramod Kumbhar

Boris Issakovich Gorovits

Use of a specific combination of catalysts for the first and second steps of the process for the conversion of CHP to BPA provides high yields of BPA and low impurity yields, without a requirement for the intermediate purification steps. In the first step, CHP is cleaved in the presence of an acid treated clay such as acid treated Montmorillonite clay to produce phenol and acetone. In the second step, the phenol and acetone produced is reacted, preferably without intermediate purification, in the presence of a cation exchange resin catalyst that includes a cation exchange resin and a mercaptan or mercaptoalkanoic acid promoter to produce BPA.

Integrated process for the production of bisphenol A from cumene hydroperoxide

The specification provides a method of producing cumene hydroperoxide by continuous aqueous-emulsion oxidation at a high temperature and pressure in a cascade of reactors, wherein the process is conducted in the presence of a mixture of an aqueous solution of an ammonium salt with a concentration of 0.001&#x2013;0.5 mass % and an aqueous solution of ammonia with a concentration of 0.001&#x2013;0.5 mass %, which mixture is fed into each oxidation reactor in an ammonia:ammonium salt mass ratio of 1:100 to 100:1.

Method of producing cumene hydroperoxide

Use of a specific combination of catalysts for the first and second steps of the process for the conversion of CHP to BPA provides high yields of BPA and low impurity yields, without a requirement for the intermediate purification steps. In the first step, CHP is cleaved in the presence of a sulfated metal oxide catalyst such as sulfated Zirconia to produce phenol and acetone. In the second step, the phenol and acetone produced is reacted, preferably without intermediate purification, in the presence of a cation exchange resin catalyst that includes a cation exchange resin and a mercaptan or mercaptoalkanoic acid promoter to produce BPA.

A process for producing a phenol product generally comprises a first step comprising reacting in a first reactor a feed stream comprising cumene hydroperoxide and water with an acid catalyst to produce an effluent comprising the phenol product, acetone, and at least 1% by weight residual cumene hydroperoxide, and a second step comprising passing the effluent into a second reactor and decomposing the residual cumene hydroperoxide, wherein during said process the ratio of phenol to acetone is maintained at a molar ratio of greater than 1:1, and wherein the water in each of the first and second steps is present in an amount more than 0 and less than or equal to 5 weight percent based on the total weight of the feed stream or effluent, and wherein the process is continuous.

Process for producing phenol

The goal of this invention is to produce phenol of high purity by conversion of impurities that are present in the starting phenol, which is produced by the decomposition of cumyl hydroperoxide. The indicated goal is achieved by purifying the phenol containing admixtures of aliphatic and aromatic carbonyl compounds with an aluminum zirconium catalyst.

Process and catalyst for purifying phenol

A method for measuring a concentration of a hydroperoxide of an alkylaromatic hydrocarbon in a process stream comprises immersing a probe into the process stream; wherein the probe is coupled to a spectrometer; collecting absorption data with the spectrometer at a wavelength of 13,000 cmto 4,000 cm; and calculating a concentration of the hydroperoxide of the alkylaromatic hydrocarbon in the process stream. In another embodiment, samples are withdrawn from the process stream and analyzed spectrometrically to determine the concentration of the hydroperoxide of the alkylaromatic hydrocarbon in the sample.

Method of measuring the concentration of hydroperoxides of alkylaromatic hydrocarbons

The specification provides a method of producing cumene hydroperoxide by continuous aqueous-emulsion oxidation at a high temperature and pressure in a cascade of reactors, wherein the process is conducted in the presence of a mixture of an aqueous solution of an ammonium salt with a concentration of 0.001-0.5 mass % and an aqueous solution of ammonia with a concentration of 0.001-0.5 mass %, which mixture is fed into each oxidation reactor in an ammonia:ammonium salt mass ratio of 1:100 to 100:1.

The specification provides a method for producing p-cumylphenol phenol by reacting phenol with &agr;-methylstyrene in the presence of a highly efficient heterogeneous aluminum zirconium catalyst.

Process and catalyst for producing p-cumylphenol

A process for separating sulfonic acid compounds from a phenolic solvent is provided by contacting the phenolic solvent with a hydrotalcite-type material (HTM). The process can be applied in the conventional industrial process for converting cumene to phenol to remove sulfonic acid compounds 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 a sulfonic acid cation exchange resin catalyst (IER) to produce a reaction product that may contain sulfonic acid compounds. The reaction product is contacted with an HTM to reduce the amount of sulfonic acid compounds which may be present and to produce a purified phenol-containing stream. The purified phenol-containing stream may be further purified using conventional separation techniques, such as distillation.

Production and purification of phenol

A method for manufacturing cumene hydroperoxide comprises reacting cumene and oxygen in the presence of a water phase comprising aqueous ammonia, and in the absence of an additive comprising an alkali or alkaline earth metal, to form cumene hydroperoxide. A system for producing cumene hydroperoxide comprises a cumene feed in fluid communication with a reactor having a cumene hydroperoxide oxidate outlet; an oxygen feed in fluid communication with the reactor; and an ammonia feed in fluid communication with the cumene feed and/or the reactor, wherein the cumene feed, the oxygen feed, the ammonia feed, and the reactor are free of an additive comprising an alkali or alkaline earth metal.

Method and system for manufacturing cumene hydroperoxide

A system for purifying a cumene hydroperoxide cleavage product mixture comprises a cumene hydroperoxide cleavage product mixture feed containing impurities in fluid communication with an aqueous alkaline solution feed; the cumene hydroperoxide cleavage product mixture and aqueous alkaline solution feeds in fluid communication with a neutralization drum having a aqueous salt phase outlet; a aqueous salt phase feed containing impurities in fluid communication with a decomposer reactor having an oxidized aqueous salt phase outlet; an oxidizing agent feed in fluid communication with the aqueous salt phase feed containing the impurities prior to the decomposer reactor; and an oxidized aqueous salt phase feed containing water-soluble oxidized derivatives of the impurities in fluid communication with the cumene hydroperoxide cleavage product mixture prior to the neutralization drum.

Method and system for purifying cumene hydroperoxide cleavage products

A system for purifying a cumene hydroperoxide cleavage product mixture comprises a cumene hydroperoxide cleavage product mixture feed containing impurities in fluid communication with an aqueous alkaline solution feed; the cumene hydroperoxide cleavage product mixture and aqueous alkaline solution feeds are in fluid communication with a neutralization drum having an aqueous salt phase outlet; an aqueous salt phase feed containing impurities in fluid communication with a heat treatment vessel having a heat-treated aqueous salt phase outlet; and a heat-treated aqueous salt phase feed containing water-soluble derivatives of the impurities in fluid communication with the cumene hydroperoxide cleavage product mixture prior to the neutralization drum.

System and method for purifying cumene hydroperoxide cleavage products

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

This invention concerns the field of environmental protection and can be used to clean industrial waste gases containing products that cause resin formation which fouls catalysts. It is proposed to clean industrial waste gases of aromatic and aliphatic compounds at 120-160 &deg; C. by means of passing waste gases first through a catalytic composition consisting of a guard bed (to protect the palladium catalyst) with a specific surface 0.2-1.0 m &middot;g , which is initially roasted at 800-1,350&deg; C. and second through a palladium catalyst bed (0.1-3% palladium, deposited on an active aluminum oxide). The proposed method makes it possible to clean industrial waste gases of harmful substances (for example, methanol, cumene) with a degree of destruction not less than 97-98% in the presence of aromatic hydroperoxides which cause resin formation and catalyst fouling on other catalytic systems.

Method of cleaning industrial waste gases

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Mt. Vernon, IN, United States of America

John William Fulmer