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Preparation method of inhibitor of argillaceous and carbonaceous gangue minerals

A technology of gangue minerals and inhibitors, applied in the field of inhibitors, can solve the problems of loss of useful metal minerals, economic burden, and lack of dispersion effect, etc., and achieve less dosage of chemicals, good inhibitory effect, and good concentrate grade Effect

Inactive Publication Date: 2009-12-30
广西华锡集团股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, in the recovery process of muddy oxidized ore, in addition to adding ore washing operation before the beneficiation process, water glass, sodium hexametaphosphate, and sodium carbonate are added as inhibitors to improve recovery rate and concentrate grade. The loss of useful metal minerals is unavoidable during the ore washing process. The latter can only act on muddy minerals under appropriate conditions. If the amount added is too small, the dispersion effect will not be achieved, which will affect the recovery of metal minerals. Too much will cause the suppression of the metal minerals by the agent and reduce the recovery rate of the metal minerals
In addition, in the process of recovering sulfide ore of carbonaceous gangue minerals, for a long time, a large amount of chemicals have been added to allow the carbonaceous gangue minerals to preferentially adsorb and then collect metal minerals, which resulted in a large amount of waste of chemicals , which increases the cost of beneficiation and causes unnecessary economic burden to the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An example of the preparation method of mud-containing and carbonaceous gangue mineral inhibitor of the present invention comprises the following steps:

[0014] Take grape seeds and naphthalene bark as raw materials, wash and dry at low temperature, pulverize, and pass through an 80-mesh sieve to obtain the peel powder, which is taken according to mass ratio: peel powder: sodium sulfite: sodium bisulfite: water=5: 3:3:10, heat to 60°C, keep stirring for 8 hours, filter twice with gauze, take the filtrate and carry out centrifugation twice with a centrifugal sedimentation machine, collect the supernatant in a round bottom flask and carry out vacuum distillation to obtain a deep The yellow concentrated solution was heated in a water bath, the temperature was controlled at about 60°C, the solvent was evaporated to dryness, and the obtained viscous liquid was dried in a vacuum drying oven at a temperature of about 60°C to obtain a yellow-brown viscous solid, which was obtai...

Embodiment 2

[0016] Another example of the preparation method of mud-containing and carbonaceous gangue mineral inhibitor of the present invention comprises the following steps:

[0017] Grape seed, pomegranate peel and willow bark are used as raw materials, washed, dried at low temperature, crushed, passed through an 80-mesh sieve, and taken according to the mass ratio: peel powder: sodium sulfite: sodium bisulfite: water = 2:1:1: 4. Heat to 70°C, keep stirring for 10 hours, filter with gauze for 3 times, take the filtrate and use a centrifugal sedimentation machine for 3 times of centrifugation, and collect the supernatant in a round bottom flask for vacuum distillation to obtain a dark yellow concentrated solution. Heating in a water bath, the temperature is controlled at about 70°C, the solvent is evaporated to dryness, and the obtained viscous liquid is dried in a vacuum drying oven at a temperature of about 60°C to obtain a yellow-brown viscous solid, and after complete drying, a yell...

Embodiment 3

[0019] This embodiment is an application example of the mud-containing and carbonaceous gangue mineral inhibitor in the flotation of mud-containing and carbonaceous gangue minerals.

[0020] 1. Mineral raw materials:

[0021] The zinc content in zinc oxide in the raw ore is 9.2%, and the content of ferric oxide reaches 10.17%. Iron mainly exists in the form of limonite, and the ore is seriously muddy. Phase analysis shows that zinc mainly exists in the form of smithsonite.

[0022] 2. Chemical system and operating conditions: Use sodium hydroxide to adjust the pH of the pulp to 8-9.5, press inhibitor 100g / t, sodium sulfide 10kg / t, copper sulfate 100g / t, isopentyl xanthate 330g / t, No. 2 100t / d industrial scale-up test was carried out at the dosage of 60g / t oil for one year. The results show that the above process and chemical conditions can effectively recover zinc oxide ore with severe mudification and high iron content by flotation, and the grade of zinc in the ore is 10.17....

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Abstract

A preparation method of an inhibitor of argillaceous and carbonaceous gangue minerals comprises the following steps: adopting two or three of grapestone, pomegranate peel, willow bark and crab-apple bark as raw materials, cleaning the raw materials and then drying the cleaned raw materials at a low temperature, grinding, sieving with a 80 mesh sieve, taking fruit tree bark powder, sodium sulfite, sodium bisulfite and water in a ratio of 5-8:3-4:3-4:10-16, heating the mixture to 60-70 DEG C to react for 8-10h, filtrating, taking the filtrate for reduced pressure distillation, obtaining concentrated solution, heating the solution in 60-70 DEG C water bath, evaporating the solvent to obtain sticky liquid, performing vacuum drying to the sticky liquid to obtain tawny sticky solid and completely drying the solid to obtain the inhibitor of argillaceous and carbonaceous gangue minerals. The inhibitor prepared by the method of the invention can effectively restrain seriously slimed gangue minerals containing high carbon, increase the recovery of useful minerals and the concentrate grade, reduce the dosage of the medicament and has no toxin and no pollution.

Description

1. Technical field [0001] The invention relates to an inhibitor of mud-containing and carbonaceous gangue minerals, especially for oxidized ore containing mud and carbonaceous gangue, and poor and fine miscellaneous tailings, the inhibitor needs to improve the grade of concentrate. 2. Background technology [0002] For a long time, in the recovery process of muddy oxidized ore, in addition to adding ore washing operation before the beneficiation process, water glass, sodium hexametaphosphate, and sodium carbonate are added as inhibitors to improve recovery rate and concentrate grade. The loss of useful metal minerals is unavoidable during the ore washing process. The latter can only act on muddy minerals under appropriate conditions. If the amount added is too small, the dispersion effect will not be achieved, which will affect the recovery of metal minerals. Too much will cause the suppression of the metal minerals by the agent and reduce the recovery rate of the metal mine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D101/06B03D103/02
Inventor 陈锦全周德炎唐凤玲陈建华魏宗武陈志文穆枭兰丽红
Owner 广西华锡集团股份有限公司
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