Preparation method for zinc oxide ore collecting agent

A technology of zinc oxide ore and collector, applied in solid separation, flotation and other directions, can solve the problems of poor solubility, inconvenient use, poor effect, etc., and achieve low cost, enhanced solubility, improved convenience and flotation. select effect effect

Inactive Publication Date: 2018-06-12
CHIHONG TECH & ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems that the existing amine collectors have a certain collection effect on zinc oxide minerals in zinc oxide flotation, but their solubility is poor, resulting in inconvenient use and poor effect, the present invention proposes a The preparation method of the zinc oxide ore collector, the method is through the organic dissolution of the original amine agent, and the use of ultrasonic wave to aid in dissolution, heating and stirring, without affecting the original collection property, the solubility of the agent is enhanced , improving the convenience of chemical use and flotation effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] A kind of preparation method of zinc oxide ore collector, concrete steps are:

[0016] 1) Prepare a mixed solution of octadecylamine and dodecylamine, and heat it in a water bath, wherein the mass ratio of octadecylamine to dodecylamine is 3~1:1, and the concentration of the mixed solution is 10%~20% , the heating temperature is controlled at 40°C~45°C;

[0017] 2) Add NaOH to the solution obtained in step 1) to adjust the pH to 9~11, then add methanol, propanol, and methyl phosphate in sequence, and heat it in a water bath, wherein the mass ratio of methanol, propanol, and methyl phosphate 4:4:1, the total mass of methanol, propanol, and methyl phosphate is 10%~20% of the total mass of octadecylamine and dodecylamine, and the heating temperature is controlled at 55°C~60°C;

[0018] 3) Stir in a water bath at a constant temperature of 75°C~85°C, control the stirring speed at 120~180 r / min, and use ultrasonic treatment at the same time, the ultrasonic frequency is 25000...

Embodiment 1

[0020] Taking a low-grade zinc oxide ore in Lincang, Yunnan Province as an example, the ore contains 10.5% zinc and an oxidation rate of 60%. The main zinc-containing minerals are smithsonite and sphalerite, and there are a small amount of hemimorphite and zinc-iron tip spar, the preparation of collectors for the treatment of this mine comprises the following steps:

[0021] First prepare a mixed solution of octadecylamine and dodecylamine with a mass ratio of 3:1 and a concentration of 15%, and heat it in a water bath at a temperature of 41°C; then add NaOH to the solution to adjust the pH to 11, Then add methyl alcohol, propanol, methyl phosphate successively, the mass ratio of methyl alcohol, propanol, methyl phosphate is 4:4:1, the total mass of methanol, propanol, methyl phosphate is the total mass of octadecylamine and dodecylamine. 10% of its mass, and heated in a water bath at a temperature of 60°C; finally stirred at a constant temperature in a water bath at a tempera...

Embodiment 2

[0024] Taking a zinc oxide mine in Shangri-La, Yunnan Province as an example, the mine contains 13.5% zinc and an oxidation rate of 76%. The main zinc-containing minerals are hemimorphite and smithsonite, and there are a small amount of galena and zinc-iron spinel. However, the area where the mine is located has a high altitude, low temperature, and poor solubility of amine collectors. The solution must be heated before use, which is extremely inconvenient to use in this area. Preparation of collectors for treating the mine involves the following steps:

[0025] First prepare a mixed solution of octadecylamine and dodecylamine with a mass ratio of 1:1 and a concentration of 20%, and heat it in a water bath at a temperature of 40°C; then add NaOH to the solution to adjust the pH to 10, Then add methyl alcohol, propanol, methyl phosphate successively, the mass ratio of methyl alcohol, propanol, methyl phosphate is 4:4:1, the total mass of methanol, propanol, methyl phosphate is ...

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Abstract

The invention discloses a preparation method for a zinc oxide ore collecting agent, and belongs to the field of ore processing. The preparation method particularly comprises the steps that a mixed solution of octadecylamine and lauryl amine is prepared to be contained into a water bath to be heated; NaOH is added into an obtained solution to adjust the pH, methyl alcohol, propyl alcohol and methylphosphate are sequentially added, a mixture is placed into the water bath to be heated; and thermostatic water bath stirring is carried out, ultrasonication is adopted, and the zinc oxide ore collecting agent is finally obtained. According to the method, in order to solve the problems that an existing amine collecting agent is poor in agent solubleness in zinc oxide floatation, the using condition is limited, and the action effect is poor, organic interaction dissolving, ultrasonic dissolving assisting, heating stirring and other methods are adopted, on the premise that the original collecting character is not influenced, the agent dissolving performance is strengthened, the using convenience is improved, and the finally the aim of improving the flotation effect is achieved.

Description

technical field [0001] The invention belongs to the field of mineral processing, and in particular relates to a preparation method of a zinc oxide ore collector. Background technique [0002] Zinc exists in nature in the form of sulfide minerals and oxide minerals. Zinc mainly exists in the form of sphalerite in sulfide ores, and zinc in oxidized ores mainly exists in the form of smithsonite and hemimorphite. However, the characteristics of zinc ore resources in my country are "less rich ore, miscellaneous types", "few large-scale mines, more small and medium-sized mines", although most of the raw materials used in the modern zinc smelting industry are zinc sulfide ore, With the depletion of mineral resources, the processing and utilization of zinc oxide ore has been put on the agenda. my country's zinc oxide ore reserves are very rich. According to statistics, the reserved reserves of zinc oxide ore are as high as 80 million tons, mainly distributed in Yunnan, Guizhou and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D101/02B03D103/04
CPCB03D1/01B03D2201/02B03D2203/04
Inventor 刘志成高连启惠世和王胜开刘全军常伟华王明飞赵学中张田强刘金德马德张林友敖顺福孙立赵云
Owner CHIHONG TECH & ENG
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