Title:
METHOD FOR RESOURCE TREATMENT OF CHEMICAL NICKEL-PLATING WASTE LIQUID
Document Type and Number:
WIPO Patent Application WO/2022/141147
Kind Code:
A1
Abstract:
The present invention relates to the technical field of wastewater resource treatment, and more particularly, to a method for resource treatment of a chemical nickel-plating waste liquid. The method comprises the steps of: oxidation complex-breaking, nickel-phosphorus synchronous precipitation, nickel secondary precipitation, and sodium salt recycling. According to the present invention, no sludge is generated in a reaction process, secondary pollution of the environment can be prevented, the technological process is short, the use amount of the medicament is small, the treatment cost is greatly reduced, the resource recycling of nickel, phosphorus, sodium, sulfate or chlorine in the chemical nickel-plating waste liquid is achieved, and the method is a low-cost and clean resource treatment method.
Inventors:
LI SHANTING (CN)
TAN KAN (CN)
XU WENBIN (CN)
ZHANG YANHUA (CN)
XIAO YONGJUN (CN)
GUO XINGLIN (CN)
HE LONG (CN)
TAN KAN (CN)
XU WENBIN (CN)
ZHANG YANHUA (CN)
XIAO YONGJUN (CN)
GUO XINGLIN (CN)
HE LONG (CN)
Application Number:
PCT/CN2020/141208
Publication Date:
July 07, 2022
Filing Date:
December 30, 2020
Export Citation:
Assignee:
DONGJIANG ENVIRONMENTAL COMPANY LTD (CN)
International Classes:
C01B25/37; C02F9/06; C01G53/04; C23C18/16; C25B1/20; C02F101/10; C02F103/16
Foreign References:
| CN108503103A | 2018-09-07 | |||
| CN108083563A | 2018-05-29 | |||
| CN105329988A | 2016-02-17 | |||
| CN101456637A | 2009-06-17 | |||
| CN103073096A | 2013-05-01 | |||
| CN106186427A | 2016-12-07 |
Attorney, Agent or Firm:
CHINA TRADEMARK & PATENT LAW OFFICE CO., LTD. (CN)
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