Basf Se Corporation

Basf Corporation

Cognis IP Management Gmbh

Jack Thomas Bender

Michael J Virnig

Nathan Clark Emmerich

Louis Rebrovic

William C Mays

Dieter G Von Deak

Martin L Panchula

Tinoush Dinn

Benjamin Reichman

Diana F Wong

Russell Vincent Brewer

Lauren Michele Hight

Provided are processes for extracting nickel and lithium from a Ni/Lisolution. The process for extracting nickel and lithium includes providing a Ni/Lisolution comprising an amount of lithium and an amount of nickel, treating the Ni/Lisolution with an alkaline agent to adjust the pH of the Ni/Lisolution to between about 1.0 to about 10.0, and treating the Ni/Lisolution with a nickel selective extractant, the nickel selective extractant suitable to extract nickel from the Ni/Lisolution at said pH to thereby produce a Lisolution with less than 1000 parts per million Ni. Once complete, the process provides for recoverable nickel and/or lithium that may be recycled into batteries or sold for other uses.

Methods for extracting elements from a solution

Provided are processes for extracting lithium and optionally nickel from a Nickel(II)/Lithium(I) (Ni/Li) solution. The extraction is optionally performed in a series of steps with counterflow of aqueous and organic flows to thereby produce a lithium poor solution. The lithium poor solution may be treated so that remaining Ni in the lithium poor solution may be directly precipitated therefrom in the form of a Ni salt. Once complete, the process provides for recoverable nickel and/or lithium that may be recycled into batteries or sold for other uses.

Methods for extracting Li and Ni from a solution

Leaching aids, for example, when present in a leaching solution, and methods of using the leaching aids. The leaching aids can include one or a combination of compounds. The method of using the leaching aids can include a process of recovering metal from ore, for example, a process involving heap leaching, solvent extraction and electrowinning.

Leaching aids and methods of using leaching aids

Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein Rcomprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.

Methods and systems for reducing impurity metal from a refinery electrolyte solution

Reagent compositions, methods and systems for reducing concentrations of impurity metals during metallurgic processes. Certain methods and systems in particular pertain to control of iron concentration in copper electrowinning electrolyte solutions.

Methods and systems for controlling impurity metal concentration during metallurgic processes

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.

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Vail, AZ, United States of America

Jack Thomas Bender