Title:
ARSENIC PROCESSING METHOD AND ARSENIC-CONTAINING COMPOUND
Document Type and Number:
WIPO Patent Application WO/2015/151903
Kind Code:
A1
Abstract:
Provided is a processing method for arsenic, with which it is possible for the arsenic that is contained in copper ore containing arsenic to be processed into a stable form suitable for long-term stockpiling and storage. This arsenic processing method is characterized by including: a roasting step for roasting copper ore containing arsenic in a non-oxidizing atmosphere, and separating the copper pyrites from the volatiles that contain arsenic sulfides; a heat treatment step for heat treating the volatiles obtained in the roasting step, in a non-oxidizing atmosphere, causing the arsenic sulfides in the volatiles to melt; a pulverization step for pulverizing the volatiles subsequent to the heat treatment step; and a remelting step for heating and remelting the volatiles subsequent to the pulverization step.
Inventors:
TATSUMI RYOSUKE (JP)
HATANO KAZUHIRO (JP)
HATANO KAZUHIRO (JP)
Application Number:
PCT/JP2015/058761
Publication Date:
October 08, 2015
Filing Date:
March 23, 2015
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
C22B15/00; C22B1/02
Foreign References:
| JP2014198890A | 2014-10-23 | |||
| JP2012087400A | 2012-05-10 | |||
| JP2014506288A | 2014-03-13 |
Attorney, Agent or Firm:
AXIS Patent International (JP)
Axis international patent business corporation (JP)
Axis international patent business corporation (JP)
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