Process for reducing collophanite flotation tailing grade

A technology for flotation of tailings and colloidal phosphate rock, applied in flotation, solid separation, grain treatment, etc., to achieve the effect of improving the recovery rate of concentrate, reducing consumption, and widening the value of industrial promotion

Active Publication Date: 2015-06-17
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affected by factors such as lower quality of selected raw ore, higher impurity content, higher ore hardness, and higher and higher requirements for grinding fineness, the current single reverse flotation process has been difficult to meet the existing production requirements, and new ones need to be developed. Process technology to adapt to changes in ore properties, improve the flotation process to ensure the recovery rate and concentrate grade, gradually reduce the energy consumption of the flotation plant, improve the quality of the concentrate, thereby improving the economic and social benefits of the flotation plant

Method used

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  • Process for reducing collophanite flotation tailing grade
  • Process for reducing collophanite flotation tailing grade
  • Process for reducing collophanite flotation tailing grade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The ore type is high-magnesium collophosite, numbered 1 ＃ , the chemical element analysis results are shown in Table 1:

[0044] Table 1 1 ＃ Ore chemical element analysis table

[0045]

[0046] Original process treatment 1 ＃ High Magnesium Collin Phosphate

[0047] See the process flow figure 1 , using a single reverse flotation process. First, the high-magnesium collephinite is ground, and the ground products enter the hydrocyclone for classification; the coarser-grained products obtained by the classification operation are returned to the mill for grinding, and the finer-grained products The concentration is -0.074mm and the content accounts for 90.00%; then reverse flotation roughing is carried out, the roughing foam product is used as the final tailings, the product in the roughing tank is reverse flotation and selected, and the selected foam product is returned to the roughing process as an intermediate product to form Closed loop operation, the product in...

Embodiment 2

[0061] The ore type is high-magnesium collophosite, numbered 2 ＃ , the chemical element analysis results are shown in Table 4:

[0062] Table 4 2 ＃ Ore chemical element analysis table

[0063]

[0064] Original process treatment 2 ＃ High Magnesium Collin Phosphate

[0065] See the process flow Figure 5 , using a single reverse flotation process to grind the high-magnesium collophosite, and the ground products enter the hydrocyclone for classification; the coarser-grained products obtained by the classification operation are returned to the mill for regrinding, and the finer-grained products have fineness The content of -0.074mm accounts for 92.45%. Fine-grained products are subjected to reverse flotation roughing; roughing foam products are used as final tailings, products in the roughing tank are reverse-floated and selected, and selected foam products are returned to roughing as intermediate products. The selection process forms a closed loop operation, and the pro...

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Abstract

The invention discloses a process for reducing the collophanite flotation tailing grade. The process comprises the specific steps that firstly, mineral is ground, then the ground mineral products are graded, relatively coarse grained products obtained after grading are returned to a mill to be ground again, and the relatively fine grained products obtained after grading enter the flotation process to be subjected to reverse flotation operation; flotation foam products serve as final tailings, and products in a flotation cell are graded; relatively coarse grained products obtained after grading serve as intermediate products and are returned to the mill to be ground again, a closed-loop operation is formed, and relatively fine grained products obtained after grading serve as final fine mineral products. The high-magnesia collophanite is processed through the process, qualified phosphate concentrate with the MgO grade smaller than or equal to 0.8% is obtained, the recovery rate of concentrate is improved by 1-3%, and the tailing P2O5 grade is reduced by 1-2%. The stable collophanite flotation technical-economic indexes can be obtained through the process, the utilization rate of the phosphate rock resources is improved, the energy and chemical consumption of a whole flotation mill are reduced, the economic and social benefits of the flotation mill are improved, and the process has wide industrial popularization value.

Description

technical field [0001] The invention belongs to the field of chemical mineral processing engineering, and in particular relates to a processing technology for removing carbonate impurities through reverse flotation of specific high-magnesium collophosite in the Dianchi Lake area of ​​Yunnan. A new process for reducing production consumption of mineral products at the same time. Background technique [0002] At present, for the beneficiation and processing of high-magnesium collophosite in the Dianchi Lake area, the single reverse flotation process is mainly used to remove carbonate impurities. Generally, the operation process of one roughing and one selection is adopted, and the roughing foam product is directly used as the final tailings. The selected foam product returns to roughing and re-selection, and the product in the selected tank is used as the final concentrate. However, due to the higher requirements on grinding fineness when using this process to process this ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B02C21/00B03D1/002B03D1/008B03D101/06B03D101/02
Inventor 李耀基郭永杰刘朝竹方世祥杜令攀钟晋陈赐云李小双
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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