Title:
METHOD FOR SCREENING MOLECULAR FUNCTIONAL GROUPS OF COAL SLIME FLOTATION COLLECTING AGENT
Document Type and Number:
WIPO Patent Application WO/2023/160045
Kind Code:
A1
Abstract:
A method for screening molecular functional groups of a coal slime flotation collecting agent, relating to the field of flotation reagent design. Modified probes (14) having different flotation reagent molecular functional groups are prepared by means of deposition; then elastic deformation information generated in the process of feeding the modified probes (14) into a tested coal sample (9) is observed by means of an atomic force microscope (AFM), and probe feeding force information of the modified probes (14) in the probe feeding process is deduced according to the elastic deformation information; probe withdrawing force information corresponding to the modified probes (14) are collected to generate a probe withdrawing force curve; and probe withdrawing force curve values of all the modified probes (14) are compared, the larger the values are, the larger the adhesive force between the molecular functional groups of the flotation collecting agent on the modified probes (14) and the coal sample (9) is, and the larger the adhesive force is, the better the effect of the collecting agent deposited on the modified probes (14) is. The screening method is simple in steps, high in precision and intuitive, and the problems in the prior art that efficient collecting agent molecular functional groups are difficult to screen, a collecting agent regulation and control mechanism is not clear, etc. are solved.
Inventors:
XIA YANGCHAO (CN)
GUI XIAHUI (CN)
XING YAOWEN (CN)
ZHU CHUNYUN (CN)
XIA LINGYONG (CN)
CHE TAO (CN)
XU BAOLIN (CN)
MENG FANCAI (CN)
XIAO YOUFEN (CN)
GUI XIAHUI (CN)
XING YAOWEN (CN)
ZHU CHUNYUN (CN)
XIA LINGYONG (CN)
CHE TAO (CN)
XU BAOLIN (CN)
MENG FANCAI (CN)
XIAO YOUFEN (CN)
Application Number:
PCT/CN2022/133064
Publication Date:
August 31, 2023
Filing Date:
November 21, 2022
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
G01N19/04
Foreign References:
| CN114577716A | 2022-06-03 | |||
| CN113426583A | 2021-09-24 | |||
| CN110736858A | 2020-01-31 | |||
| AU7131081A | 1982-12-09 | |||
| CN102218376A | 2011-10-19 | |||
| AU2860297A | 1998-01-22 | |||
| CN103143448A | 2013-06-12 |
Other References:
YE, JUNJIAN: "Study on Interface Control of Fine-grained Apatite Flotation", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE (ELECTRONIC JOURNAL) ENGINEERING SCIENCE AND TECHNOLOGY I, no. 06, 30 June 2020 (2020-06-30), ISSN: 1674-022X
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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