Nathan Clark Emmerich

US Patent:

8460623, Jun 11, 2013

Filed:

Feb 22, 2012

Appl. No.:

13/401939

Inventors:

Michael Virnig - Tucson AZ, US
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Duesseldorf

International Classification:

C22B 3/00

US Classification:

423 24, 423 9, 423 215, 423 54

Abstract:

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.

US Patent:

8475748, Jul 2, 2013

Filed:

Feb 22, 2012

Appl. No.:

13/401921

Inventors:

Michael Virnig - Tucson AZ, US
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Duesseldorf

International Classification:

B01D 11/00

US Classification:

423 9, 423 24, 423 54, 423 99, 423139, 252184

Abstract:

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.

US Patent:

8529850, Sep 10, 2013

Filed:

Feb 22, 2012

Appl. No.:

13/401930

Inventors:

Michael Virnig - Tucson AZ, US
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Duesseldorf

International Classification:

B01D 11/00

US Classification:

423 9, 423 24, 423 54, 423 99, 423139

Abstract:

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.

US Patent:

20120219478, Aug 30, 2012

Filed:

Feb 22, 2012

Appl. No.:

13/401957

Inventors:

Michael Virnig - Tucson AZ, US
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Dusseldorf

International Classification:

C22B 15/00
C22B 19/20
C22B 23/00

US Classification:

423 24, 423139, 423 99

Abstract:

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.

US Patent:

20130020536, Jan 24, 2013

Filed:

Jul 17, 2012

Appl. No.:

13/551029

Inventors:

Michael Virnig - Tucson AZ, US
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Dusseldorf

International Classification:

C09K 3/00

US Classification:

252364

Abstract:

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.

US Patent:

20130247718, Sep 26, 2013

Filed:

May 9, 2013

Appl. No.:

13/890637

Inventors:

- Dusseldorf, DE
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

Assignee:

Cognis IP Management GmbH - Dusseldorf

International Classification:

C22B 34/34
C22B 19/20
C22B 3/44
C22B 3/00

US Classification:

75721

Abstract:

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.

US Patent:

20130302225, Nov 14, 2013

Filed:

Jul 10, 2013

Appl. No.:

13/938427

Inventors:

- Dusseldorf, DE
Jack Bender - Corona de Tucson AZ, US
Nathan C. Emmerich - Tucson AZ, US

International Classification:

C22B 15/00

US Classification:

423 24, 252184

Abstract:

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.

US Patent:

20190062867, Feb 28, 2019

Filed:

Oct 18, 2016

Appl. No.:

15/768762

Inventors:

- Ludwigshafen, DE
Noah Oliver - Tucson AZ, US
Nathan Clark Emmerich - Tucson AZ, US
Lauren Hight - Southgate MI, US
Michael Virnig - Tucson AZ, US

International Classification:

C22B 3/30
C22B 15/00

Abstract:

Methods and systems for removing polar compounds from a metal-containing solution. According to various example aspects, methods and systems for removing hydrolysis byproducts and other polar compounds from a metal-loaded organic solution of a solvent extraction process.