Title:
MINERAL SEPARATION PROCESS FOR MEDIUM-LOW GRADE MIXED COLLOPHANITE
Document Type and Number:
WIPO Patent Application WO/2021/179862
Kind Code:
A1
Abstract:
Disclosed is a mineral separation process for medium-low grade mixed collophanite, the process comprising the following steps: S1, crushing; S2, screening the crushed ore to obtain fine-fraction ore and coarse-fraction ore which is divided into at least two grain fractions; S3, performing photoelectric separation on the coarse-fraction ore with different particle fractions to obtain a photoelectric separation concentrate and photoelectric separation tailings of each particle fraction; S4, combining the photoelectric separation concentrate of all the particle fractions to obtain a pre-enriched concentrate; S5, combining the fine-fraction ore and the pre-enriched concentrate, and then grinding the ores to obtain minerals to be separated; and S6, adding water to the minerals to be separated to obtain a flotation ore pulp, and performing flotation to obtain a phosphate concentrate and tailings. By means of photoelectric separation silicon reduction and single reverse flotation magnesium removal, the process achieves the effects of high ore dressing efficiency, a small amount of floated ore, low energy consumption, and being low in cost and environmentally friendly.
Inventors:
DENG JIE (CN)
DENG SHANZHI (CN)
ZHANG XINHUA (CN)
CHEN DA (CN)
ZHANG LIJUN (CN)
XIONG WENLIANG (CN)
YAN SHIQIANG (CN)
QIN JIANHUA (CN)
DENG SHANZHI (CN)
ZHANG XINHUA (CN)
CHEN DA (CN)
ZHANG LIJUN (CN)
XIONG WENLIANG (CN)
YAN SHIQIANG (CN)
QIN JIANHUA (CN)
Application Number:
PCT/CN2021/075250
Publication Date:
September 16, 2021
Filing Date:
February 04, 2021
Export Citation:
Assignee:
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES (CN)
International Classes:
B03D1/002; B03B9/00
Foreign References:
| CN111451001A | 2020-07-28 | |||
| CN111450987A | 2020-07-28 | |||
| CN110694788A | 2020-01-17 | |||
| CN105750089A | 2016-07-13 | |||
| CN106583058A | 2017-04-26 | |||
| US5295584A | 1994-03-22 |
Other References:
LI NING, NING LI, SHUHONG ZHANG, HUA PENG, LEI FU, YUNJUN LU: "Application Practice and Evaluation of Photoelectric Separation in a Phosphate Mining Industry", NON-METALLIC MINES, vol. 41, no. 2, 1 March 2018 (2018-03-01), pages 73 - 75, XP055846241, ISSN: 1000-8098
HUANG CHENLEI, HUIHUA, LUO; CAI, ZHONGJUN; LIU, XING; ZHANG, ZHENYI: "Annual Review of Chinese Phosphate Mineral Processing in 2018", WUHAN GONGCHENG DAXUE XUEBAO = JOURNAL OF WUHAN INSTITUTE OF TECHNOLOGY, vol. 41, no. 6, 1 December 2019 (2019-12-01), pages 559 - 565, XP055846243, ISSN: 1674-2869, DOI: 10.3969/j.issn.1674⁃2869.2019.06.009
HUANG CHENLEI, HUIHUA, LUO; CAI, ZHONGJUN; LIU, XING; ZHANG, ZHENYI: "Annual Review of Chinese Phosphate Mineral Processing in 2018", WUHAN GONGCHENG DAXUE XUEBAO = JOURNAL OF WUHAN INSTITUTE OF TECHNOLOGY, vol. 41, no. 6, 1 December 2019 (2019-12-01), pages 559 - 565, XP055846243, ISSN: 1674-2869, DOI: 10.3969/j.issn.1674⁃2869.2019.06.009
Attorney, Agent or Firm:
CHENGDU JEWEIHO INTELLECTUAL PROPERTY LAW FIRM (CN)
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