Title:
METHOD FOR RECOVERING VALUABLE COMPONENTS FROM SMELTING SLAG CONTAINING NICKEL
Document Type and Number:
WIPO Patent Application WO/2019/071787
Kind Code:
A1
Abstract:
A method for recovering valuable components from smelting slag containing nickel, comprising: adding nickel smelting slag into a reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heating the mixed slag to a molten state to serve as reaction slag, mixing well, monitoring the reaction slag in real time, and obtaining slag after a reaction by means of adjusting the mixed reaction slag to simultaneously satisfy conditions a and b; separating and recovering. The method may fully use the physical thermal resources of smelting nickel slag as well as hot metallurgical flux, while cold furnace slag may also be processed; by means of adding an additive, mixing well and controlling the oxygen level of slag, slag metallurgy is implemented and a synchronous separation technique for copper and iron in nickel smelting slag is achieved, solving the current problems of the bulk deposition of furnace slag, environmental pollution and heavy metal element pollution.
Inventors:
ZHANG LI (CN)
ZHANG WU (CN)
ZHANG WU (CN)
Application Number:
PCT/CN2017/115642
Publication Date:
April 18, 2019
Filing Date:
December 12, 2017
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
C22B7/04; C22B11/02; C22B13/02; C22B15/00; C22B19/30; C22B23/02
Foreign References:
| CN106755652A | 2017-05-31 | |||
| CN106755651A | 2017-05-31 | |||
| CN1435501A | 2003-08-13 | |||
| CN104946840A | 2015-09-30 | |||
| US4141722A | 1979-02-27 |
Other References:
ZHANG, JUHUA ET AL.: "Mechanism of Vanadium Slag Roasting with Calcium Oxide", INTERNATIONAL JOURNAL OF MINERAL PROCESSING, vol. 138, 18 March 2015 (2015-03-18), pages 20 - 29, XP055592257, ISSN: 0301-7516, DOI: 10.1016/j.minpro.2015.03.007
Attorney, Agent or Firm:
BEIJING EASY JOY SOON IP AGENT LTD. (CN)
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