METHOD FOR EXTRACTING COPPER FROM LEACH SOLUTIONS AT ELEVATED TEMPERATURES

Title:

METHOD FOR EXTRACTING COPPER FROM LEACH SOLUTIONS AT ELEVATED TEMPERATURES

Document Type and Number:

WIPO Patent Application WO/2004/104238

Kind Code:

A2

Abstract:

Copper is extracted from aqueous copper leach solutions wherein the leach solutions have a temperature of at least 30°C. The method comprises contacting the aqueous solution with an extraction reagent of the formula (I) : wherein R is a linear or branched C_10-18alkyl group and R₁ is H or CH₃. These extraction reagents do not undergo any significant degradation normally encountered with the use of conventional reagents in leach solutions having temperatures equal to or greater than 30°C.

Inventors:

KORDOSKY GARY A (US)
SUDDERTH R BRANTLEY (US)
VIRNIG MICHAEL J (US)

Application Number:

PCT/US2004/012907

Publication Date:

December 02, 2004

Filing Date:

April 27, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

COGNIS CORP (US)
KORDOSKY GARY A (US)
SUDDERTH R BRANTLEY (US)
VIRNIG MICHAEL J (US)

International Classes:

C22B3/26; C22B3/30; C22B11/00; C22B15/00; C22B; (IPC1-7): C22B/

Foreign References:

US6177055B1

2001-01-23

Attorney, Agent or Firm:

Drach, John E. (Patent Department 300 Brookside Avenu, Ambler PA, US)

Download PDF:

View/Download PDF PDF Help

Previous Patent: FE-NI ALLOY METAL WIRE HAVING A HIGH MECHANICAL STRENGTH AND A LOW THERMAL EXPANSION CO-EFFICIENT, W...

Next Patent: BENEFICIATION OF TITANIFEROUS SLAGS