Title:
METHOD FOR COLLECTING INDIUM AND TIN USING INDUSTRIAL WASTE
Document Type and Number:
WIPO Patent Application WO/2016/111571
Kind Code:
A1
Abstract:
The present invention relates to a method for collecting indium and tin using industrial waste and, more specifically, the method comprises: an inorganic acid mixing step for mixing an inorganic acid with industrial waste mixed with indium and tin; a tin precipitation step for mixing an ammonium sulfate powder with the mixture, which is mixed with the inorganic acid through the inorganic acid mixing step, to precipitate tin (II) sulfate; a tin separation step for separating tin(II) sulfate, which is precipitated through the tin precipitation step; and an indium collection step for mixing dilute hydrochloric acid and a zinc metal powder with the mixture, from which tin is separated through the tin separation step, to collect an indium sponge. The method for collecting indium and tin using industrial waste, comprising the above steps, can easily collect tin and indium, as high-priced metals, at high yield, which are contained in the industrial waste composed of metal sponge waste or sludge containing indium and tin. The collected indium and tin are convenient for metal retreatment.
Inventors:
HONG IN SEOK (KR)
KIM JOO HYUNG (KR)
NHA SANG KYUN (KR)
KIM JOO HYUNG (KR)
NHA SANG KYUN (KR)
Application Number:
PCT/KR2016/000161
Publication Date:
July 14, 2016
Filing Date:
January 08, 2016
Export Citation:
Assignee:
HWARYU TECH CO LTD (KR)
International Classes:
C22B58/00; C22B3/00; C22B7/00
Foreign References:
| JP2007056366A | 2007-03-08 | |||
| KR20120074355A | 2012-07-06 | |||
| JPH05247556A | 1993-09-24 | |||
| KR20040042696A | 2004-05-20 | |||
| KR20060072559A | 2006-06-28 |
Attorney, Agent or Firm:
KIM, SU-JIN (KR)
김수진 (KR)
김수진 (KR)
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