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1. (WO2002004919) METHOD AND APPARATUS FOR THE ASSAY OF PRECIOUS METALS

Pub. No.:    WO/2002/004919    International Application No.:    PCT/ZA2001/000092
Publication Date: Jan 17, 2002 International Filing Date: Jul 12, 2001
IPC: C21C 5/46
C22B 1/00
C22B 11/02
G01N 33/20
Applicants: INNOVATIVE MET PRODUCTS (PTY) LIMITED
COWAN, George, Michael
HOHENSTEIN, Boyne, Friedrich
MCINTOSH, Keith, Sheares
HOFMEYR, Pierre, Karel
Inventors: COWAN, George, Michael
HOHENSTEIN, Boyne, Friedrich
MCINTOSH, Keith, Sheares
HOFMEYR, Pierre, Karel
Title: METHOD AND APPARATUS FOR THE ASSAY OF PRECIOUS METALS
Abstract:
The invention provides a method of assaying a mineral sample for determining the concentration of selected metals in a sample comprising the steps of providing a comminuted mineral sample; mixing such sample with a flux; preheating a reaction vessel to a temperature which approximates the melting point of the flux; introducing the mixture of the mineral sample and flux into the crucible, whereby the mixture is transformed to a molten state to capture the metal to be assayed in a collector material; and separating slag from the collector material.