The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Feb. 04, 2021
Institute of Multipurpose Utilization of Mineral Resources, Cags, Chengdu, CN;
Shanzhi Deng, Chengdu, CN;
Jie Deng, Chengdu, CN;
Xinhua Zhang, Chengdu, CN;
Da Chen, Chengdu, CN;
Shiqiang Yan, Chengdu, CN;
Jun Song, Chengdu, CN;
Abstract
An ore dressing process for medium-grade and low-grade mixed collophanite includes the following steps: S; crushing ores to obtain crushed ores; S: screening the crushed ores to obtain fine-fraction ores and coarse-fraction ores divided into at least two size fractions; S: performing a photoelectric separation to the coarse-fraction ores of different size fractions to obtain photoelectric separation concentrates and photoelectric separation tailings of each size fraction; S: combining the photoelectric separation concentrates of the each size fraction to obtain pre-enriched concentrates; S: combining the fine-fraction ores and the pre-enriched concentrates, and then performing an ore grinding to obtain minerals to be separated; S: adding water to the minerals to be separated to obtain a floatation pulp, and then performing a floatation to obtain phosphate concentrates and tailings.