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Deoiling treatment method of molybdenum concentrate after floatation

A treatment method and technology for molybdenum concentrate are applied in the field of deoiling treatment of molybdenum concentrate after flotation, which can solve the problems of decreasing gaseous sulfur dioxide concentration, incomplete oxidation of molybdenum concentrate, poor fluidity, etc.

Inactive Publication Date: 2010-02-10
JINDUICHENG MOLYBDENUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low melting point of the hydrocarbon oil used as a molybdenum collector (350-400°C), it coats the surface of the molybdenum concentrate, causing the molybdenum concentrate to overheat at the initial stage of roasting, forming agglomerates, and affecting the deep oxidation of the molybdenum concentrate. Lead to incomplete oxidation of molybdenum concentrate
When the hydrocarbon oil content of the molybdenum concentrate exceeds 2% (mass fraction), the molybdenum concentrate is not easy to disperse, sticky, and has poor fluidity, resulting in a significant decline in the roasting capacity of the molybdenum concentrate. It will cause the concentration of gaseous sulfur dioxide to drop, increasing the difficulty of handling low-concentration sulfur dioxide (less than 2%)

Method used

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Embodiment

[0013] Degreasing was carried out by heating in a microwave tray dryer. The microwave heating cavity is a 1.5mm thick stainless steel plate. The microwave feed-in part is three-side feed-in. During operation, the molybdenum concentrate is in a container, and there is a device to stir the molybdenum concentrate. The temperature in the container is controlled at 320±10°C, and it is heated to smokeless output. Condensation recovery.

[0014] The turntable of the microwave equipment has four layers, the size is ф1000mm, the speed is 8 rpm, and the power is 20kw. Process 100kg of molybdenum concentrate per hour.

[0015] Comparison of Degreasing Effects Between Microwave Method and Muffle Furnace

[0016] Way

[0017] It can be seen from the example of molybdenum concentrate deoiling that if 10kg of molybdenum concentrate is also deoiled, the energy consumption of the microwave method is less than 50% of that of the muffle furnace method when the deoiling effect is e...

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PUM

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Abstract

The invention relates to a deoiling treatment method of molybdenum concentrate after floatation, in particular to a method for deoiling the molybdenum concentrate after floatation with microwave. Themethod is characterized in that a treatment process thereof comprises the following steps: heating and deoiling the molybdenum concentrate after floatation with the microwave, and then collecting, condensing, recovering and recycling oil smoke generated after heating. The method specifically comprises the following steps: selectively heating the molybdenum concentrate by the characteristics of a large dielectric constant of molybdenite, vaporizing hydrocarbon oil covered on the surface of the molybdenum concentrate with less energy consumption, discharging, condensing and recovering the smokeby air suction setting, and then recycling the floatation molybdenite medicament.

Description

technical field [0001] A method for deoiling molybdenum concentrate after flotation relates to a method for deoiling molybdenum concentrate after flotation by using microwave energy. Background technique [0002] In the flotation process of molybdenum concentrate, hydrocarbon oil is the collector of molybdenite flotation. During the flotation process, about 70% of the collector is enriched in the molybdenum concentrate, so that the oil content of the molybdenum concentrate reaches 3% to 4%. Due to the low melting point of the hydrocarbon oil used as a molybdenum collector (350-400°C), it coats the surface of the molybdenum concentrate, causing the molybdenum concentrate to overheat at the initial stage of roasting, forming agglomerates, and affecting the deep oxidation of the molybdenum concentrate. Lead to incomplete oxidation of molybdenum concentrate. When the hydrocarbon oil content of the molybdenum concentrate exceeds 2% (mass fraction), the molybdenum concentrate is...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/10B03D1/12
Inventor 徐秋生孙院军刘雁鹰钟在定刘东新
Owner JINDUICHENG MOLYBDENUM CO LTD