Dow Global Technolgoies LLC

The Dow Chemical Company

Robert M Campbell

John Robert Briggs

Bruce D Hook

Bruce Bell

William Jack Kruper, Jr

William J Kruper

Tina L Arrowood

David James Schreck

Hernan J Cortes

Richard Dicran Varjian

Jeffrey G Hippler

Curt N Theriault

Ralf Fitschen

Anh Nguyen

R Paul Himes

Dennis A Hucul

Paul C Vosejpka

Lin Fu

Robert F Eaton

Manish K Mundra

Abhijit Ghosh-Dastidar

Mark E Jones

Troy E Knight

Curtis D Pfeiffer

Larry N Ito

Pramod D Patil

Bob R Maughon

Amit Katiyar

Adam L Grzesiak

Jacob Crosthwaite

Kenneth L Kearns

Curtis D Pfeffer

Bruce M Bell

Kenneth Kearns

The present invention provides for a method of using a mixture of two or more nonionic surfactants for enhanced oil recovery and for an emulsion that includes carbon dioxide, a diluent and a mixture of two or more nonionic surfactants, where each nonionic surfactant is prepared with a double metal cyanide catalyst.

Nonionic surfactant compositions for enhanced oil recovery

The present disclosure is directed to a plasticizer composition, polymeric compositions containing the plasticizer composition, and conductors coated with the polymeric composition. The plasticizer composition includes a first plasticizer comprising epoxidized fatty acid alkyl esters and a second plasticizer comprising an epoxidized natural oil. The plasticizer composition, first plasticizer, and/or second plasticizer can undergo one or more color-reducing treatment processes, such as distillation, filtration, and/or peroxide treatment.

Plasticizer compositions and methods for making plasticizer compositions

The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of hydrogen chloride at superatmospheric, atmospheric and subatmospheric pressure conditions for a sufficient time and at a sufficient temperature, preferably wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; said process carried out without a step undertaken to specifically remove volatile chlorinated hydrocarbon by-products or chloroacetone, wherein the combined concentration of volatile chlorinated hydrocarbon by-products and chloroacetone is less than 2000 ppm throughout any stage of the said process.

Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloroacetone levels

A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; wherein said crude glycerol, said ester of crude glycerol, or mixture thereof is derived from a renewable raw material. Chlorohydrins made by the process of the present invention are useful in preparing epoxides such as epichlorohydrins.

Process for the conversion of a crude glycerol, crude mixtures of naturally derived multicomponent aliphatic hydrocarbons or esters thereof to a chlorohydrin

The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts. In addition, certain catalysts of the present invention may be used in the present process at superatmospheric, atmospheric and subatmospheric pressure conditions with improved results.

Conversion of a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin

Process for the conversion of a crude glycerol, crude mixtures of naturally derived multihydroxylated aliphatic hydrocarbons or esters thereof to a chlorohydrin

Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloracetone levels

A process for making 2,3-dihalopropanol including reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of an iridium and a second transition metal mixed metal catalyst where the second transition metal is selected from the group comprising ruthenium, iron, molybdenum, tungsten, rhenium, osmium, manganese or vanadium, under conditions such that 2,3-dihalopropanol is formed. The 2,3-dihalopropanol is particularly useful in a process for making epihalohydrin.

Process for making 2,3-dihalopropanols

On-line supercritical fluid extraction multidimensional chromatographic

An on-line multidimensional chromatographic system and method which couples a liquid chromatograph to a supercritical fluid chromatograph. The system includes an inlet column for depositing a fraction of interest eluting from the liquid chromatograph, an interface interposed between the inlet column and the supercritical fluid chromatograph for receiving and trapping an analyte from the deposited fraction on an impactor surface, and a valve arrangement for controlling fluid flow throughout the system. After the fraction of interest has been deposited in the inlet column, the liquid chromatograph solvent is removed from the inlet column, and then the deposited fraction is extracted from the inlet column in a supercritical fluid stream. The supercritical fluid stream is directed into the interface, where the analyte is trapped while the supercritical fluid is decompressed and vented. A subsequent supercritical fluid stream is then used to introduce the trapped analyte directly into the analytical column of the supercritical fluid chromatograph. The system and method can also be used to introduce samples contained in large volumes of solvent without the prior liquid chromatographic separation.

On-line multidimensional chromatographic system with large volume

An on-line multidimensional chromatographic system and method which couples a liquid chromatograph to a supercritical fluid chromatograph. The system includes an inlet column for depositing a fraction of interest eluting from the liquid chromatograph, an interface interposed between the inlet column and the supercritical fluid chromatograph for receiving and trapping an analyte from the deposited fraction on an impactor surface, and a valve arrangement for controlling fluid flow throughout the system. After the fraction of interest has been deposited in the inlet column, the liquid chromatograph solvent is removed from the inlet column, and then the deposited fraction is extracted from the inlet column in a supercritical fluid stream. The supercritical fluid stream is directed into the interface, where the analyte is trapped while the supercritical fluid is decompressed and vented. A subsequent supercritical fluid stream is then used to introduce the trapped analyte directly into the analytical column of the supercritical fluid chromatograph.

Growing community of inventors

Midland, MI, United States of America

Robert M Campbell