High iron pelitization wulfenite floatation method

A kind of molybdenum lead ore, sludge technology

Inactive Publication Date: 2008-03-05
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of this invention is long and complicated, requiring multi-stage grinding and desliming before flotation, and the recovery rate of molybdenum minerals is not high, only 65%, and the quality of concentrate is only 7.25%. In addition, the investment in the process equipment is large, Covers a large area and consumes a lot of energy
In addition, molybdenum-lead ore with high iron, muddy and fine particles cannot be recovered

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Mineral raw materials:

[0028] A certain mine in Guizhou has a processing capacity of 100 tons per day. The molybdenum content in the ore is 0.92%, the lead content is 3.9%, and the ferric oxide content reaches 29%. The iron mainly exists in the form of limonite, and the ore is seriously muddy. Phase analysis shows that molybdenum is mainly composed of molybdenite (PbMoO 4 ) form, the ratio of lead to molybdenum reaches 4.23 (the ratio of molybdenum to lead in molybdenum ore is 2.16), indicating that the lead in the ore not only exists in the form of molybdenum lead, but also contains part of lead oxide. Lead is mainly white lead ore.

[0029] 2. Flotation agent and operation steps:

[0030] Pharmacy system:

[0031] Use sodium hydroxide to adjust the pulp to pH 9-10.5, sodium hexametaphosphate 100g / t, sodium sulfide 10kg / t, copper sulfate 67g / t, isoamyl xanthate 330g / t, kerosene 100g / t, No. 2 Oil 60g / t.

[0032] When in use, it is first formulated to the follo...

Embodiment 2

[0044] 1. Mineral raw materials

[0045] In a mine in Guizhou, the molybdenum content in the ore is 0.54%, the lead content is 2.63%, and the ferric oxide content reaches 17%. The iron mainly exists in the form of limonite, and the ore is seriously muddy. Molybdenum is mainly composed of molybdenum lead ore (PbMoO 4 ) in the form of other minerals, except for a small amount of copper, there is also a small amount of zinc ore, and the phase analysis of these two parts of the minerals is oxide ore.

[0046] 2. Flotation agent and operation steps:

[0047] Pharmacy system:

[0048] Use sodium hydroxide to adjust the pulp to pH 9.5, sodium hexametaphosphate 300g / t, sodium sulfide 8kg / t, copper sulfate 120g / t, isoamyl xanthate dosage 210g / t, kerosene 80g / t, No. 2 oil 70g / t.

[0049] When in use, it is first formulated to the following concentrations (% by weight):

[0050] Sodium Hydroxide 20% in water

[0051] Sodium hexametaphosphate 5% aqueous solution

[0052] Sodium sul...

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PUM

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Abstract

The high iron slimed wulfenite floating process adopts sodium hexametaphosphate as dispersant, sodium hydroxide as ore pulp pH regulator, sodium sulfide for sulfurizing and deleading, copper sulfate as activator, kerosene as water repellent, isoamyl xanthate as wulfenite collector and 2# oil as foaming agent. The process can float to recover wulfenite with high iron content and serious sliming effectively. When the raw ore has Mo content of 0.5-0.76 %, Mo concentrate obtained through once coarse separation and four times of fine separation has Mo content of13-16.8 % and recovery rate up to 71-76 %.

Description

1. Technical field [0001] The invention relates to a mineral flotation method, in particular to a high-iron muddy molybdenum-lead ore flotation method. 2. Background technology [0002] Chinese patent application No.200610048650.9 discloses a method for recovering colored molybdenum lead ore by means of a combined process of flotation-heavy-floating. Using colored molybdenum lead ore as raw material, the ore is ground until the mineral monomers are dissociated; first, the flotation equipment is used to Molybdenum minerals and gangue minerals are separated by chemical reagents, and the floating products are molybdenum concentrate products; then the molybdenum minerals and gangue minerals in the flotation tailings are further separated by a shaking table to obtain gravity-selected molybdenum concentrate products. When the first stage of grinding is not enough to fully dissociate the molybdenum minerals, the shaker tailings are further ground to further dissociate the molybdenu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/004B03B1/04B03D101/02B03D101/04B03D103/04
Inventor 陈建华魏宗武穆枭何奥平
Owner GUANGXI UNIV
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