Henkel Corporation

Cognis Corporation

Cognis IP Management Gmbh

Basf Se Corporation

Basf Corporation

Henkel Research Corporation

Henkel Kommanditgesellschaft Auf Aktien

Other

General Mills Chemicals, Inc.

Michael J Virnig

Phillip L Mattison

Jack Thomas Bender

George A Wolfe

Nathan Clark Emmerich

William E Fristad

Gary Alan Kordosky

Stephen M Olafson

J Murdoch MacKenzie

Hans Christian Hein

R Brantley Sudderth

J Michael Sierakoski

Louis Rebrovic

James P Clark

Wilson L Lin

Keith E Weerts

G Timothy Fisher

Klaus Bruns

Leroy O Krbechek

Jonathan M Cassel

Sang I Kang

LeRoy O Krbechek

Ronald P Wirth

Jeffrey L Narum

John Fast

Frank McDonnell

Kevin V Martin

Mary Collins

Dana K Elliott

Rainer Eskuchen

Reuben H Grinstein

Thomas Gerke

Thomas Markert

Josef Penninger

Paul Schulz

Edward D DiDomenico

Bert Gruber

Kenneth D MacKay

Horst-Juergen Krause

Jianhua Mao

Steven M Hoagland

Horst Josten

Franz J Carduck

Thomas J Stierman

Lon-Tang W Lin

Mary I Casey

Mark Witschger

Marie-Esther Saint Victor

Burrel Boley, Iii

Ralph L Jensen

Volker Falk

Terry L Crandell

Murdoch Mackenzie

Dana K Elliot

Paul O'Driscoll

Michael D Fabiano

Eugen Heinrichs

Daniel McSweeney

Dustin Gordon

Jack Bender

Sulfonate-, sulfate-, or carboxylate-capped, alkoxylated anti-misting agents having the structure: R((AO)X)((AO)H), and methods of suppressing mist from electrolyte solutions by adding a mist-suppressing amount of one or more compounds selected from the group consisting of compounds of the Formulas R((AO)X)((AO)H)and RN(CH)R, and mixtures thereof, to electrolyte solutions.

Acid mist mitigation agents for electrolyte solutions

Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect relates to a method of separating iron/copper using a specific ketoxime. Aldoximes may also be added to the reagent compositions used in these methods.

Compositions and methods of using a ketoxime in a metal solvent extraction reagent

Provided are methods method of recovering metal from an aqueous solution, the method comprising contacting an aqueous solution containing at least two metals selected from molybdenum, cobalt, nickel, zinc and iron with an organic solvent and an oxime-containing reagent composition at a predetermined pH, the predetermined pH selected to provide a high first metal extraction and a low second metal extraction; and separating the first metal from the solution.

Methods of metal extraction using oximes

Provided are methods for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuits, said solvents essentially consisting of at least one ketoxime and/or aldoxime; at least one equilibrium modifier; and at least one diluent.

Method for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuits

Compositions and methods of using a ketoxime in a metal solvent

Reagent compositions, methods for their manufacture and methods of their use are described. In particular, provided are reagent compositions comprising an aldoxime and ketoxime with an alkyl substituent. Also provided are methods of metal recovery using these reagent compositions.

Metal solvent extraction reagents and use thereof

Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from a nitrate-containing aqueous solution. Another such method is of extracting a metal from an aqueous ammoniacal solution. A third method is of multi-metal extraction based on a predetermined pH.

Sulfonate- or sulfate-capped, alkoxylated anti-misting agents having the structures: R((AO)X)((AO)H)and RC(O)NH(CH)N(CH)CHCHRCHSO, and to methods of suppressing mist from electrolyte solutions by adding a mist-suppressing amount of one or more of said compounds to electrolyte solutions.

Sulfonate- or sulfate-capped anti-misting agents

Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from an aqueous ammoniacal solution. Metals that can be extracted include nickel, zinc and copper.

Methods of metal extraction from ammoniacal solutions using oximes

The disclosed invention provides water-insoluble, water-immiscible extraction reagent compositions comprising an extractant reagent comprising one or more aldoxime extractants, optionally including one or more ketoxime extractants, in combination with one or more ether or polyether equilibrium modifiers, or mixtures thereof, selected from the compounds of Formula I-III: 

More efficient ether modifiers for copper extractant formulations

A method of creating solvent extraction reagent formulations that have high conductivity by combining (a) phenolic oxime extraction reagent(s) or other extraction reagent(s) in the organic phase of a solvent extraction circuit of a metal recovery operation, comprising combining the phenolic oxime extraction reagent(s) or other reagent(s) with one or more ketone, nitrile and/or amide compounds, or mixtures thereof, to create an extraction reagent formulation with a conductivity of at least 4,000 pS/m, measured according to the provisions of BS 5958 Part I, as well as a method of creating an organic phase that has a high conductivity, preferably a conductivity of at least 250 pS/m, comprising adding to that organic phase in an extraction circuit a phenolic oxime extraction reagent formulation with one or more ketoxime, aldoxime, mixtures thereof, or one or more other extraction reagents, and one or more ketone, nitrile, or amide compounds, or mixture thereof, and novel ketone, nitrile and amide compounds.

Highly-conductive copper extractant formulations

The preparation of concentrated solutions of oxime metal extractants, such as aldoximes and ketoximes, or mixtures of aldoxime and ketoxime, and the use thereof in formulating or preparing extraction reagent compositions for use in an extractant organic phase in a process of extracting metals from aqueous solutions containing metal values; and in particular, to concentrates which are solutions of individual ketoxime or aldoxime or mixtures of water-insoluble hydroxy aldoximes and ketoximes, in varying ratios by weight of 1:100 aldoxime to ketoxime, or conversely, 100:1 ketoxime to aldoxime, in water-immiscible hydrocarbon solvents or equilibrium modifiers. The invention also provides for maintaining stability of concentrates determined by accelerating rate calorimetry to define the ranges of oxime concentration and volume whereby the concentrate will be a stable, flowable, pourable and pumpable concentrate which can be safely stored long term. The extraction compositions may also optionally contain equilibrium modifiers or kinetic additives.

Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom

Antimisting agents

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Tucson, AZ, United States of America

Michael J Virnig