Dow Global Technolgoies LLC

Rohm and Haas Company

Blue Cube IP LLC

Northwestern University

Bruce D Hook

Anil Mehta

John Robert Briggs

Robert M Campbell

Andrei S Merenov

Danil Tirtowidjojo

Christian D Kneupper

William W Fan

Jeffrey G Hippler

William Jack Kruper, Jr

Bruce Bell

David H West

William J Kruper

Tina L Arrowood

David James Schreck

Richard Dicran Varjian

David Jean

David R Wilson

David L Malotky

Sukrit Mukhopadhyay

Wanglin Yu

Theodore Tysak

William Hoy Heath

Arjun Raghuraman

Nathan Wilmot

Daniel Lawrence Dermody

Heather Spinney

Andrea Claudette Keenan

Christopher P Christenson

Yushan Hu

Juan Carlos Medina

John B Cuthbert

SonBinh T Nguyen

Malcolm F Finlayson

Timothy Charles Frank

Philip J Carlberg

Anna Forlin

Gyongyi Gulyas

Mark E Jones

Istvan Lengyel

Dennis Wade Jewell

Charles William Lipp

Craig F Gorin

James W McMichael

Justin M Notestein

Hannah L Crampton

Charles W Lipp

Dan Tirtowidjojo

Curt N Theriault

Anh Nguyen

Ralf Fitschen

Eric B Ripplinger

Stacey A Saba

Daniele Cristina Santos

Leming Gu

Paulo Fabricio Queiroz Martins

Zhe Jia

Michael D Cloeter

Brayden E Glad

William A Cynecki

Jorg Theuerkauf

Heinz Groenewald

Sascha Noormann

Jean Paul Chauvel, Jr

Joseph Bonadies, Jr

Aslin Izmitli

Laura Havens

David L Burow

Khiet T Pham

Steve Gluck

Matthew Bierman

Kimberly A Surber

Elva L Lugo

Ni Yan

Andrea C Keenan

Dennis W Jewell

Frank Koester

Sunil K Chaudhary

Celio Lume Pereira

Glenn Lord

Christine Lundstroem

Annett Horn

Ranate Patrascu

Kenneth L Kearns

Paulo Martins

Daniele Santos

Heather A Spinney

Jun Li

Piyush Thakre

Joerg Theuerkauf

Renate P Patrascu

Sascha N Noormann

Heinz G Groenewald

Kenneth Kearns

A method of producing an alcohol ethoxylate surfactant or lubricant, the method including reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R)(R)(R)(R), whereas M is boron, aluminum, indium, bismuth or erbium, R, R, R, and Rare each independent, Rincludes a first fluoroalkyl-substituted phenyl group, Rincludes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, Rincludes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional Rincludes a functional group or functional polymer group, Rbeing different from at least one of Rand R. The method further including forming an alcohol ethoxylate surfactant or lubricant having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

Process of manufacturing surfactants and lubricants

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

Method of making a grease thickener and the thickener made by the method

A method for suppressing the formation of ammonia comprising providing a carrier material to a container having a headspace; providing a bacteria, an acidifier and an odor inhibitor to the carrier material, the bacteria comprising-or-bacteria, and the odor inhibitor comprising a salt of an aminopolycarboxylic acid compound; and applying animal waste to the carrier material; wherein there is a 5 to 98 percent improvement of ammonia content in the headspace as compared to an untreated control comprising a container containing the carrier material and the bacteria and not contain the odor inhibitor.

[object Object]

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocyanate in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

A method of producing an alcohol ethoxylate surfactant or lubricant includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R)1(R)1(R)1(R), whereas M is boron, aluminum, indium, bismuth or erbium, R, Rand Reach includes a same fluoroalkyl-substituted phenyl group, and optional Rincludes a functional group or functional polymer group. R, R, and Rare the same fluoroalkyl-substituted phenyl group. The method further includes forming the alcohol ethoxylate surfactant or lubricant having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

Provided are proppants for use in hydraulic fracturing operations. The proppants comprise particles having coatings disposed on them as described herein. The proppants exhibit reduced dust generation, for instance during transloading, conveying and/or offloading of the proppant at a wellsite and/or at intermediate shipping transload points.

Proppants with improved dust control

Processes and apparatus for purifying brine are provided including (1) providing an aqueous brine solution comprising one or more inorganic salts and one or more organic compounds and (2) conducting at least one unit operation for removing organic compounds from the brine solution to obtain a purified brine solution.

Process and apparatus for purification of industrial brine

A process for recovering a divinylarene dioxide from a crude feed stream comprising the steps of: (a) providing an effluent reaction stream containing at least one divinylarene dioxide product and other compounds; and (b) separating/recovering the divinylarene dioxide product from the other compounds of the reaction effluent from step (a); wherein the percent recovery of the divinylarene dioxide product recovered comprises greater than about 85 percent; and wherein the percent purity of the divinylarene dioxide product recovered comprises greater than about 85 percent.

Process for recovering divinylarene dioxides

Modifying agents, e.g., a poly(sulfonyl) azide, are attached to a substrate surface, e.g., the surface of a polyolefin particle, by a process comprising the steps of: A. Contacting in an open contact zone and under a flow of inert gas a substrate with a modifying agent, binding agent, e.g., a phenolic-based antioxidant, and a liquid mixing agent, e.g., methylene chloride, to form a substrate mixture; B. Closing the contact zone and stopping the flow of inert gas to the contact zone; C. Agitating the substrate mixture under the inert gas in the closed contact zone to commence evaporation of the liquid mixing agent; D. Reducing the temperature and pressure of the closed contact zone while continuing to agitate the substrate mixture; and E. Completing the substantial evaporation of the mixing agent from the substrate mixture by opening the contact zone and initiating an inert gas flow while continuing agitation of the substrate mixture and maintaining a reduced pressure.

Process for attaching a modifying agent to a substrate

A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is stripped to recover dichlorohydrin(s) while distilling or fractionating the mixture to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture in one step. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment.

Process and apparatus for recovery of dichlorohydrins via codistillation

A process for preparing a divinylarene oxide including (a) reacting (i) at least one divinylarene; (ii) at least one peroxycarboximidic acid; (iii) at least one solvent; and (iv) at least one basic compound, under reaction conditions to form a reaction effluent containing a divinylarene oxide product; and then (b) evaporating the reaction effluent of step (a) to form a concentrate containing the divinylarene oxide product; and wherein the concentrate separates into two liquid phases.

Process for preparing divinylarene oxides

A multiple liquid phase composition and process for preparing an oxirane product, such as epichlorohydrin, including a reaction mixture of: (a) at least one olefin, wherein the olefin is selected from one of (i) an aliphatic olefin or substituted aliphatic olefin, with the proviso that the aliphatic olefin is not propylene, (ii) a cycloaliphatic olefin, (iii) an aromatic olefin, (iv) a cycloaromatic olefin, and (v) mixtures thereof; (b) at least one peroxide compound, (c) at least one catalyst, and (d) and a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol or a combination of alcohols, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than the oxirane product; and wherein the oxirane product partitions into a high affinity solvent during the reaction. The process of the present invention advantageously produces a waste stream with no significant amount of sodium chloride (NaCl). In one embodiment, the present invention includes a process for preparing epichlorohydrin from allyl chloride and hydrogen peroxide including reacting (a) an allyl chloride with (b) hydrogen peroxide, in the presence of (c) a titanium silicalite-1 (TS-1) catalyst and (d) in the presence of a predetermined amount of a mixed solvent system; wherein the mixed solvent system includes at least (i) methanol and (ii) at least one non-reactive co-solvent.

Process for producing an oxirane

A process for preparing a divinylarene dioxide including reacting (a) at least one divinylarene; (b) at least one peroxycarboximidic acid; (c) at least one solvent; and (d) at least one basic compound, under conditions to form a reaction mixture containing a divinylarene dioxide product; and then separating the divinylarene dioxide product from the other reaction mixture components to obtain a purified divinylarene dioxide product.

Process for preparing divinylarene dioxides

A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is distilled or fractionated to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture to form a higher boiling fraction comprising the residue of the distillation or fractionation. The higher boiling fraction is stripped to recover remaining dichlorohydrins. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment.

Multi-stage process and apparatus for recovering dichlorohydrins

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Lake Jackson, TX, United States of America

Bruce D Hook