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Method for preparing willemite mineral collecting agent

A technology of collectors and minerals, applied in the field of collectors, can solve the problems of waste of resources, difficulty in harvesting, and ineffective recovery of zinc oxide ore, and achieve the effect of good concentrate grade and less dosage of chemicals

Active Publication Date: 2014-04-16
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Willemite often coexists with smithsonite. For a long time, due to the difficulty of harvesting silicon-zinc minerals, it is often impossible to effectively recover zinc oxide ore, resulting in a great waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An example of the preparation method of silicon-zinc mineral collector of the present invention, comprises the following steps:

[0015] Use tea tree columbine, castor plant columbine and tea tree bark as raw materials, after washing, dry at low temperature, pulverize, and pass through a 100-mesh sieve to obtain the pericarp powder, which is taken by mass ratio: pericarp powder: triethanolamine: water=6:4 : 10, heated to 120°C, fed nitrogen gas and stirred for 2 hours, then raised the temperature to 150-160°C, fed nitrogen gas and stirred for 2-3 hours, cooled to below 60°C in a cold water bath, filtered 5 times with gauze, and used for filtrate Centrifuge the sedimentation machine for 2 to 3 times of centrifugation, collect the supernatant in a round bottom flask and carry out vacuum distillation to obtain a dark yellow concentrated liquid, heat it in a water bath at a temperature of 60 to 70 ° C, evaporate the solvent to dryness, and obtain a viscous The viscous liqui...

Embodiment 2

[0017] An example of the preparation method of silicon-zinc mineral collector of the present invention, comprises the following steps:

[0018] Using soybean, castor bean and tea tree bark as raw materials, after cleaning, dry at low temperature, pulverize, and pass through a 100-mesh sieve to obtain the peel powder, which is obtained according to the mass ratio: peel powder: triethanolamine: water=6:4: 10. Heat to 120°C, feed nitrogen gas and stir for 2 hours, then raise the temperature to 150-160°C, feed nitrogen gas and stir for 2-3 hours, cool to below 60°C with a cold water bath, filter 5 times with gauze, and take the filtrate for use Centrifuge the sedimentation machine for 2 to 3 times of centrifugation, collect the supernatant in a round bottom flask and carry out vacuum distillation to obtain a dark yellow concentrated liquid, heat it in a water bath at a temperature of 60 to 70 ° C, evaporate the solvent to dryness, and obtain a viscous The viscous liquid was dried ...

Embodiment 3

[0020] This embodiment is an application example of the willemite mineral collector in the flotation of willemite minerals.

[0021] 1. Mineral raw materials:

[0022] Among the raw material ores, the zinc content in willemite is 10.2%, and the iron content is 3.17%. The 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 willemite.

[0023] 2. Chemical system and operating conditions: use sodium carbonate to adjust the pH of the pulp to 12-13, use sodium hexametaphosphate 2000g / t, copper sulfate 200g / t, collector dosage 1200g / t, No. 2 oil 60g / t dosage A one-year 100t / d industrial expansion test was carried out. The results show that the above-mentioned process and chemical conditions can effectively recover the muddy willemite by flotation. Under the condition that the ore zinc grade is 10.2%, after one roughing and two sweeping And secondary selection, the zinc grade of the flotation concen...

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PUM

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Abstract

The invention discloses a method for preparing a willemite mineral collecting agent. The method includes the following steps: using two or three of soybeans, castor beans, tea tree seeds and tea tree bark as raw materials, carrying out drying, smashing and screening, fetching fruit tree bark powder, triethanolamine and water with the mass ratio of 5-8 to 2-4 to 5-10, heating the mixture to the temperature ranging from 120 DEG C to 130 DEG C, leading in nitrogen, stirring to enable a reaction to last for 2-3 hours, heating the mixture to the temperature ranging from 150 DEG C to 160 DEG C, leading in nitrogen, stirring to enable a reaction to last for 2-3 hours, cooling the mixture to the temperature lower than 60 DEG C, fetching filter liquor, carrying out centrifugal separation two or three times through a centrifugation machine, carrying out reduced pressure distillation on supermatant liquor, obtaining a deep yellow concentrated solution, heating the deep yellow concentrated solution in a 60-70 DEG C water bath, evaporating a solvent to be dry, and obtaining yellow powder, namely the willemite mineral collecting agent after complete drying is achieved. According to the method, argillization and dolomite-contained willemite minerals can be effectively collected through the collecting agent.

Description

1. Technical field [0001] The invention relates to a collector for willemite minerals, especially for willemite containing mud and dolomite gangue. 2. Background technology [0002] There are many kinds of zinc oxide ores, and the common zinc oxide minerals with industrial value are smithsonite (ZnC03) and hemimorphite [ZnSi2O7 (OH)2 H2O], willemite (ZnSiO3), hydrozinsite [3Zn( OH)2·2ZnCO3], zincite (ZnO) and so on. For the recovery of smithsonite and hemimorphite, the most effective method at present is the sulfide amine flotation method. Willemite often coexists with smithsonite. For a long time, due to the difficulty of harvesting silicon-zinc minerals, it is often impossible to effectively recover zinc oxide ore, resulting in a great waste of resources. 3. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a silicon-zinc mineral collector. The prepared collector can effectively collect muddy silicon-zinc minera...

Claims

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Application Information

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IPC IPC(8): B03D1/01B03D101/02
Inventor 穆枭陈建华陈晔李玉琼
Owner GUANGXI UNIV
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