Title:
METHOD AND SYSTEM FOR RECYCLING SINTERED ASH
Document Type and Number:
WIPO Patent Application WO/2023/036048
Kind Code:
A1
Abstract:
Disclosed are a method and system for recycling sintered ash. High-purity potassium chloride can be produced by using sintered ash generated in a sintering process of an iron and steel enterprise, the problems of equipment corrosion and agglomeration resulting from alkali metals and chlorine entering sintering, a blast furnace, a rotary kiln and other high-temperature furnaces or kilns is simultaneously avoided, and ammonia nitrogen and sulfate radicals can be removed at a low cost, to improve the quality of a recycled crystalline salt; further, multi-effect countercurrent evaporation is achieved by adjusting the potassium-sodium ratio, and then the value of the crystalline salt is further improved; in addition, the present invention also has the advantages of simple process conditions, low energy consumption, zero discharge of wastewater and the like.
Inventors:
YANG BENTAO (CN)
PENG JIANHONG (CN)
XIAO HAIJUAN (CN)
CHEN YAO (CN)
LI JIA (CN)
FENG ZHEYU (CN)
XIAO QICHUN (CN)
PENG JIANHONG (CN)
XIAO HAIJUAN (CN)
CHEN YAO (CN)
LI JIA (CN)
FENG ZHEYU (CN)
XIAO QICHUN (CN)
Application Number:
PCT/CN2022/116533
Publication Date:
March 16, 2023
Filing Date:
September 01, 2022
Export Citation:
Assignee:
ZHONGYE CHANGTIAN INT ENG CO (CN)
International Classes:
C01D3/04; B09B3/00; C01F11/46
Foreign References:
| CN108607870A | 2018-10-02 | |||
| CN110040748A | 2019-07-23 | |||
| CN209139465U | 2019-07-23 | |||
| JP2004035937A | 2004-02-05 | |||
| CN105271327A | 2016-01-27 |
Attorney, Agent or Firm:
BEIJING TROHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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