Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof

A combined inhibitor and application method technology, applied in the field of combined high-efficiency inorganic inhibitors, flotation separation of sulfide minerals, and high-efficiency inorganic inhibitors, can solve the problems of poor selectivity of flotation separation reagents, achieve good inhibitory effect, reduce reagents Cost, good effect

Inactive Publication Date: 2008-05-14
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor selectivity of complex sulfide mineral flotation separation reagents. The present invention proposes a kind of co

Method used

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  • Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof

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Experimental program
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Effect test

Embodiment 1

[0031] pure mineral test

[0032] Adopt combined inhibitor of the present invention (calcium peroxide: sodium humic acid is 1: 3 (300: 900g / t)), chalcopyrite, pyrrhotite, pyrite have been carried out pure mineral ore laboratory Research, adopt the combined inhibitor of the present invention as the inhibitor of pyrite and pyrrhotite, each test takes 3g of minerals. Flotation is carried out in a 40ml hanging tank flotation machine, and the pH range of the pulp is 2 to 10. First, gradually add the inhibitor described in the present invention, and stir for 3 minutes; add butyl ammonium black medicine 20g / t, and stir for 2 minutes ; Pinitol oil 15g / t, stirring for 1 minute; flotation for 4 minutes, the recovery rate of pure minerals. The results are shown in Table 1. As can be seen from the results, the combination inhibitor of the invention can effectively suppress pyrite and pyrrhotite, but has no inhibitory effect on chalcopyrite, so chalcopyrite and pyrrhotite can be well comb...

Embodiment 2

[0036] Actual ore closed circuit test

[0037] Adopting the combined inhibitor of the present invention (calcium peroxide 300g / t: sodium humate 900g / t is 1: 3), the actual ore of a certain copper mine in Anhui has been carried out laboratory closed-circuit test research, and its ore main mineral is yellow Copper ore, pyrite, pyrrhotite, etc. The properties of this type of ore are complex, especially copper-bearing pyrrhotite-talc and serpentine ores that are difficult to separate account for 30.12%, and the existence of easily floating silicate gangue seriously affects the recovery rate of copper beneficiation. Therefore, firstly, pyrite and pyrrhotite should be suppressed, copper should be selected first, and then pyrite should be activated for flotation. For this reason, the combined inhibitor of the present invention is used to add sodium humate and calcium peroxide in a ratio of 3:1 in sequence to strongly inhibit pyrite and pyrrhotite. The test adopts one rough, two fin...

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Abstract

The invention relates to a high-efficient combined inhabitor for pyrite in complex sulfide ores and the application method of the inhabitor. The inhabitor comprises calcium superoxide and HA-Na. The inhabitor of the invention can inhibit complex vulcanized iron-bearing minerals selectively, has better inhibition properties for magnetic pyrite, pyrite and arsonopyrite, and is an inhabitor of high selectivity. Compared with the prior inhibitors such as lime, cyanide, bichrome, potassium permanganate, sodium sulfide, sulphite, zinc sulphate and trisodium phosphate, the invention has the advantages of lower use level, good effects, no pollution, and other advantages.

Description

[technical field] [0001] The invention belongs to the technical field of sulfide mineral flotation, is a kind of combined high-efficiency inorganic depressant for pyrite in complex sulfide ores, and especially relates to the production of sulfide minerals containing chalcopyrite, pyrite and pyrrhotite type ores Flotation separation. The invention also relates to a specific application method of the high-efficiency inorganic inhibitor. [Background technique] [0002] At present, the main method to deal with complex sulfide minerals is flotation separation. Due to the increasingly poor, fine and miscellaneous resources, the difficulty of flotation separation is increasing. In order to improve the efficiency of flotation separation of sulfide minerals, improve the separation from the aspect of enhanced collection of chalcopyrite Effect. A more important aspect is to improve the possibility of flotation separation of these sulfide minerals by developing high-efficiency inhibit...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/012B03D1/004B03B1/00B03D101/06B03D101/02B03D101/04B03D103/02
Inventor 孙伟胡岳华黄红军
Owner CENT SOUTH UNIV
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