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Scheelite flotation collecting agent and preparation method thereof

A technology of scheelite and collector, which is applied in flotation, solid separation, etc., can solve the problems that collectors are easy to form micelles, high flotation temperature requirements, and poor indicators of concentrators, etc., and achieve good market promotion prospects , Improve mineral processing technical indicators, good effect of low temperature resistance

Active Publication Date: 2018-09-04
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-calcium scheelite flotation collector of the invention is low in cost and non-toxic, and when used for mineral separation, in order to obtain a better separation effect, multiple roughing, sweeping and beneficiation are required. Complex conditions
[0005] At present, oxidized paraffin soap, oleic acid, and sodium oleate are mostly used in industry for flotation. This process has disadvantages such as large amount of reagents, poor selectivity of reagents, and high requirements for flotation temperature.
Using this type of agent, once the slurry temperature is lower than 15°C or even 20°C, the collector is easy to form micelles, the activity decreases, and the flotation effect becomes poor, resulting in a significant drop in production indicators
In low temperature weather in winter, many concentrators are forced to stop production due to poor indicators, resulting in a huge waste of resources

Method used

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  • Scheelite flotation collecting agent and preparation method thereof
  • Scheelite flotation collecting agent and preparation method thereof
  • Scheelite flotation collecting agent and preparation method thereof

Examples

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preparation example Construction

[0043] The preparation method of scheelite flotation collector of the present invention, described preparation method comprises the steps:

[0044] 1) In parts by weight, add 10 to 20 parts of hydroxy fatty acid, 5 to 10 parts of hydroxamic acid, 5 to 10 parts of diesel oil and 5 to 10 parts of Foaming agent, stir evenly to obtain compound mixture;

[0045] 2) Add lye to the compound mixture obtained in step 1), stir and undergo saponification reaction to obtain the scheelite flotation collector.

Embodiment 1

[0047] In parts by weight, weigh 45 parts of sulfonated oleic acid, 15 parts of hydroxy oleic acid, 5 parts of benzyl hydroxamic acid and 5 parts of -20# diesel oil, mix and stir at room temperature for 20 minutes, then add 7 parts of foaming agent pine Alcohol oil, after continuing to stir for 20 min, a homogeneous mixture was obtained. Dissolve 15 parts of sodium hydroxide in 100 parts of water, then slowly add it to the above mixture, stir evenly at 30°C and react for 90 minutes to fully saponify it to obtain a scheelite flotation collector.

[0048] Using the scheelite flotation collector provided in Example 1 of the present invention and the technical scheme of using oxidized paraffin wax soap as the collector in the prior art to carry out comparative tests: the ore sample WO 3 The grade is 0.39%, and sodium carbonate is used to adjust the pH of the pulp to 9.5-10.0, and then 3000 g / t of water glass is added to suppress the gangue. The performance and effect comparison be...

Embodiment 2

[0054] In parts by weight, weigh 50 parts of sulfonated oleic acid, 10 parts of hydroxystearic acid, 10 parts of naphthalene hydroxamic acid and 10 parts of -10# diesel oil, mix and stir at room temperature for 20 minutes, and then add 10 parts of foaming agent MIBC , and continue to stir for 20 min to obtain a homogeneous mixture. Dissolve 17 parts of sodium hydroxide in 100 parts of water, then slowly add it to the above mixture, stir evenly at 32°C and react for 75 minutes to fully saponify it to obtain a scheelite flotation collector.

[0055] Using the scheelite flotation collector provided in Example 2 of the present invention and the technical scheme using oleic acid as the collector in the prior art to carry out a comparative test: the selected ore sample WO 3 The grade is 0.67%, and sodium carbonate is used to adjust the pH of the pulp to 9.5-10.0, and then 3000g / t of water glass is added to suppress the gangue. The performance and effect of the two are compared as fo...

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Abstract

The invention provides a scheelite flotation collecting agent and a preparation method thereof. The scheelite flotation collecting agent comprises, by weight part, 40-60 parts of sulfonated unsaturated fatty acid, 10-20 parts of hydroxy fatty acid, 5-10 parts of hydroximic acid, 5-10 parts of diesel oil and 5-10 parts of a foaming agent. The scheelite flotation collecting agent is used for flotation of scheelite and is good in low temperature resistance and selectivity and great in collecting capability; and scheelite rough concentrate high in grade and recovery rate can be obtained. The preparation method of the scheelite flotation collecting agent has the advantages of being wide in raw material source and simple in preparation technology. The obtained scheelite flotation collecting agent is good in dissolving property, great in collecting capability and good in selectivity and low temperature resistance and particularly resists to floatation at the low temperature ranging from 12 DEG C to 20 DEG C; the mineral dressing technical index can be effectively increased; economical benefits are remarkable; and good market promotion prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and relates to a scheelite flotation collector and a preparation method thereof, in particular to a low-temperature resistant scheelite flotation collector and a preparation method thereof. Background technique [0002] my country's tungsten ore reserves are abundant, among which scheelite accounts for more than 70% of the total tungsten ore reserves, but poor, fine and miscellaneous deposits account for the majority of scheelite reserves, and the flotation process is the most important beneficiation of scheelite method. [0003] CN1321547A discloses a collector compound used for tungsten ore flotation. The chemical name of the collector compound is ammonium benzyl hydroxamate. The collector has good water solubility and is easy to prepare. It can be prepared by conventional stirring When dissolving and flotation scheelite and scheelite, the index of rough concentrate is improved to a ...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D1/008B03D101/02B03D101/04B03D103/02
CPCB03D1/008B03D1/012B03D2201/02B03D2201/04B03D2203/02
Inventor 凌石生王中明肖巧斌呼振峰刘方谭欣张云海刘书杰苏建芳赵杰
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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