Title:
PREPARATION METHOD FOR COPPER OR COPPER ALLOY MATERIAL, AND REFINING AGENT FOR REFINING
Document Type and Number:
WIPO Patent Application WO/2021/083385
Kind Code:
A1
Abstract:
A preparation method for a copper or copper alloy material, and a refining agent for refining. The refining agent for refining the copper or copper alloy material is an alloy composed of a Cu element, an Re element, and an M element. The Re element is a rare earth element and the M element is an alkali metal element or an alkaline earth metal element. The refining agent is able produce a compound having a relatively small density with oxygen, phosphorus, or sulphur impurities, thereby achieving the goal of removing impurities. The contents of oxygen, phosphorus, and sulphur in a copper or copper alloy material refined using the present refining agent are all on the ppm scale. The invention also features low preparation costs.
Inventors:
SONG KEXING (CN)
AN SHIZHONG (CN)
ZHOU YANJUN (CN)
LIU HAITAO (CN)
WU BAOAN (CN)
LI SHAOLIN (CN)
XIE HAOFENG (CN)
XIAO ZHU (CN)
DING YUTIAN (CN)
CHENG CHU (CN)
ZHANG YANMIN (CN)
HUANG TAO (CN)
GUO XIUHUA (CN)
ZHU YIMING (CN)
AN SHIZHONG (CN)
ZHOU YANJUN (CN)
LIU HAITAO (CN)
WU BAOAN (CN)
LI SHAOLIN (CN)
XIE HAOFENG (CN)
XIAO ZHU (CN)
DING YUTIAN (CN)
CHENG CHU (CN)
ZHANG YANMIN (CN)
HUANG TAO (CN)
GUO XIUHUA (CN)
ZHU YIMING (CN)
Application Number:
PCT/CN2020/130669
Publication Date:
May 06, 2021
Filing Date:
November 20, 2020
Export Citation:
Assignee:
UNIV HENAN SCIENCE & TECH (CN)
International Classes:
C22C1/06; C22C9/00
Foreign References:
| CN110951985A | 2020-04-03 | |||
| CN107058777A | 2017-08-18 | |||
| CN104046831A | 2014-09-17 | |||
| US4786469A | 1988-11-22 | |||
| CN103146943A | 2013-06-12 | |||
| CN104152728A | 2014-11-19 | |||
| CN104060121A | 2014-09-24 | |||
| EP2669028A1 | 2013-12-04 |
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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