Reverse-direct flotation method for siliceous-calcareous collophanite

A technology of collophosite and silicon-calcium, which is applied in the field of grinding and reverse flotation backwater utilization process of silica-calcium collophosphine, which can solve the problem of increased consumption of beneficiation reagents, increased dosage of collector reagents, tailings The problem of high inventory pressure in the ore warehouse can achieve the effect of saving flotation reagents, low dehydration cost and reducing grinding cost
CN111167610AInactive Publication Date: 2020-05-19BLUESTAR LEHIGH ENG INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BLUESTAR LEHIGH ENG INST CO LTD
Publication Date
2020-05-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a reverse-direct flotation method for siliceous-calcareous collophanite. According to the method, after raw ore is ground, a flotation process sequentially comprising reverseflotation magnesium removal and direct flotation desilicication operation is adopted, reverse flotation return water enters a reverse flotation water return pool and then returns to reverse flotationmagnesium removal so as to be used, direct flotation return water enters a direct flotation water return pool and then returns to direct flotation desilicication operation, and surplus direct flotation return water is fed into the reverse flotation water return pool so as to be used for reverse flotation. According to the invention, with the method, water can be saved, all wastewater can be recycled, and the treatment cost is low; by using a flotation process sequentially comprising reverse flotation and direct flotation, less water is needed, and reverse flotation return water enters the reverse flotation return water pool and then is reused for reverse flotation; and on the premise that the indexes of the concentrate yield, the grade and the recovery rate are similar to those in the prior art, the dosage of chemicals is small, the ion content of ore pulp in direct flotation operation is low, and water consumption is small.
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Description

technical field

[0001] The invention belongs to the technical field of mineral processing, and in particular relates to a process for utilizing siliceous-calcareous colloidal phosphate ore stage grinding and reverse flotation return water. Background technique:

[0002] In the industrialized production of collophosite, how to effectively realize the utilization of backwater is actually related to the level of new water consumption in the dressing plant and the quality of the mineral processing technical indicators, and it is related to the storage pressure of the tailings reservoir and environmental protection issues. Collophosite positive and negative flotation process is mainly for siliceous calcareous collophosphate. The positive flotation process removes most of the silicate gangue minerals through flotation under alkaline pH conditions, while the reverse flotation process Most of the dolomite and calcite are removed under weakly acidic pH conditions. In the actual prod...

Claims

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