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Mineral flotation collecting agent, preparation method and application

A technology of mineral flotation and collector, applied in flotation, solid separation and other directions, can solve the problems of restricting the comprehensive utilization level of resources and the need for efficient utilization of difficult mineral resources, achieve excellent collection performance, and be conducive to environmental protection , high-quality effect

Active Publication Date: 2022-04-05
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the collectors commonly used in China are mainly conventional products such as xanthate, black powder and thiamine. Conventional flotation agents are increasingly difficult to meet the needs of efficient utilization of increasingly depleted mineral resources, which seriously restricts the comprehensive utilization of resources in my country. Level up

Method used

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  • Mineral flotation collecting agent, preparation method and application
  • Mineral flotation collecting agent, preparation method and application
  • Mineral flotation collecting agent, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Weigh 0.1 mol of N,N-diethyldithioalkanoate sodium (17.13g) and 45.06g of water, mix and stir for 10min; Slowly add sulfuric acid (30% concentration) dropwise to the mixed solution until the solution pH=6.5, continue to stir for 5 minutes, then add 0.08mol propyne chloride (5.96g) and polybenzyltriphenylphosphorous chloride successively to the mixed solution 0.09g, 0.14g of hydroquinone, then the temperature was raised to 30°C in a water bath, and after stirring for 2 hours, the mixture was naturally cooled to room temperature, left to stand for separation, and the target product N,N-diethyldithioalkyl acid propane The alkynyl ester is separated from the waste liquid, and the product is in the form of black oil. The content of propynyl N,N-diethyldithioalkanoate is detected and calculated to be 86.68%, and the yield is 87.35%.

Embodiment 2

[0066] Weigh 0.1 mol of N,N-diethyldithioalkanoate sodium (17.13g) and 45.06g of water, mix and stir for 10min; Slowly add sulfuric acid (concentration is 30%) to solution pH=7 in the mixed solution, keep stirring for 5 minutes, add 0.09mol chloropropyne (6.71g), tributylamine 0.17g, p-hydroxybenzene successively in mixed solution 0.16g of methyl ether, then heated up to 35°C in a water bath, stirred and reacted for 2 hours, the mixture was naturally cooled to room temperature, left to separate, and the target product N,N-diethyldithioalkyl acid propynyl ester and waste liquid After separation, the product was in the form of black oil. The detected and calculated content of propynyl N,N-diethyldithioalkanoate was 88.41%, and the yield was 90.58%.

Embodiment 3

[0068] Weigh 0.1 mol of N,N-diethyldithioalkanoate sodium (17.13g) and 34.25g of water, mix and stir for 10min; Slowly add sulfuric acid (concentration: 30%) dropwise to the mixed solution until the solution pH=7, continue to stir for 3 minutes, add 0.1mol propyne chloride (7.45g) and 0.13g ethylene glycol dialkyl ether to the mixed solution successively , 0.14g of p-hydroxyanisole, then the temperature was raised to 35°C in a water bath, and after stirring for 4 hours, the mixture was naturally cooled to room temperature, left to stand for separation, and the target product N,N-diethyldithioalkyl acid propyne The ester is separated from the waste liquid, and the product is in the form of black oil. The detected and calculated content of propynyl N,N-diethyldithioalkanoate is 91.37%, and the yield is 93.04%.

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Abstract

The invention relates to the technical field of mineral treatment, particularly discloses a mineral flotation collecting agent and further discloses a preparation method and application of the mineral flotation collecting agent. The collecting agent is an N, N-dialkyl dithio alkyl acid alkyne ester compound, and the structure of the collecting agent is shown as a general formula (I). The mineral flotation collecting agent N, N-dialkyl dithio alkyl acid alkyne ester compound provided by the invention is good in selectivity, has excellent collecting performance, and particularly shows a better flotation effect on metal sulfide ore, metal oxidized ore and non-metal ore.

Description

technical field [0001] The invention relates to the technical field of mineral treatment, in particular to a mineral flotation collector, as well as its preparation method and application. Background technique [0002] Flotation is the main processing method of mineral resources, the choice of flotation agents has a great influence on the flotation effect, and determines the quality of the flotation index to a large extent. [0003] At present, the collectors commonly used in China are mainly conventional products such as xanthate, black powder and thiamine. Conventional flotation agents are increasingly difficult to meet the needs of efficient utilization of increasingly depleted mineral resources, which seriously restricts the comprehensive utilization of resources in my country. Level up. [0004] Therefore, the development of new flotation collectors has become one of the keys to the efficient utilization of mineral resources. The invention aims to provide a new flotati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012
Inventor 邱显扬齐越超戴子林赵刚张发明王成行
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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