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Method for separating and recovering sediments after processing rhenium molybdenum concentrate-containing high lead

A technology for separation and recovery of molybdenum concentrate, which is applied in the field of chemical metallurgy to achieve the effects of simple equipment, simple process and operation, and high degree of automation

Inactive Publication Date: 2013-08-14
西部鑫兴金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no comprehensive and specific report on the separation and recovery process for this type of precipitation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for separating and recovering sediment after treatment of a high-lead-containing rhenium-molybdenum concentrate, the specific steps are as follows:

[0033] (1) Take the sediment from the sedimentation tank in the method of reducing lead and protecting rhenium for high-lead-containing rhenium-molybdenum concentrate;

[0034] Wherein, the method for reducing lead and protecting rhenium of the described high-lead rhenium-containing molybdenum concentrate, the specific steps are as follows:

[0035] Measure 200mL of concentrated hydrochloric acid and 1800mL of industrial pure water with a concentration of 36wt%, put them into a reactor with a heating mantle and a stirring device, stir and mix evenly at room temperature to obtain hydrochloric acid;

[0036] Add 82g of calcium chloride solid to the hydrochloric acid, and dissolve completely under stirring at room temperature to obtain mixed solution 1;

[0037] Heat the mixed solution 1 to 90°C under stirring, and ...

Embodiment 2

[0052] A method for separating and recovering sediment after treatment of a high-lead-containing rhenium-molybdenum concentrate, the specific steps are as follows:

[0053] (1) Take the sediment from the sedimentation tank in the method of reducing lead and protecting rhenium for high-lead-containing rhenium-molybdenum concentrate;

[0054] Wherein, the method for reducing lead and protecting rhenium of the described high-lead rhenium-containing molybdenum concentrate, the specific steps are as follows:

[0055] Measure 200mL of concentrated hydrochloric acid and 980mL of industrial pure water with a concentration of 36wt%, put them into a reactor with a heating mantle and a stirring device, stir and mix evenly at room temperature to obtain hydrochloric acid;

[0056] Add 30 g of calcium chloride solid to the hydrochloric acid, and dissolve completely under stirring at room temperature to obtain a mixed solution 1;

[0057] Heat the mixed solution 1 to 95°C under stirring, and ...

Embodiment 3

[0072] A method for separating and recovering sediment after treatment of a high-lead-containing rhenium-molybdenum concentrate, the specific steps are as follows:

[0073] (1) Take the sediment from the sedimentation tank in the method of reducing lead and protecting rhenium for high-lead-containing rhenium-molybdenum concentrate;

[0074] Wherein, the method for reducing lead and protecting rhenium of the described high-lead rhenium-containing molybdenum concentrate, the specific steps are as follows:

[0075] Measure 200mL of concentrated hydrochloric acid and 1000mL of industrial pure water with a concentration of 36wt%, put them into a reactor with a heating mantle and a stirring device, stir and mix evenly at room temperature to obtain hydrochloric acid;

[0076] Add 28g of calcium chloride solid to the hydrochloric acid, and dissolve completely under stirring at room temperature to obtain mixed solution 1;

[0077] Heat the mixed solution 1 to 100°C under stirring, and...

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Abstract

The invention discloses a method for separating and recovering sediments after processing rhenium molybdenum concentrate-containing high lead, which belongs to the chemical metallurgy field. The method comprises the following steps: removing sediments in a sedimentation pool for a lead reduction rhenium preservation method of rhenium molybdenum concentrate-containing high lead, filtering to obtain a filter cake 2, washing and adding a solid NaCl aqueous solution of calcium chloride and then mixing, heating and insulating to obtain a solid-liquid mixture 3, filtering to obtain a filter cake 3 and a filtrate 2; processing the filter cake 3 to obtain a molybdenum concentrate powder; and processing the filtrate 2 to obtain a white lead chloride crystal. The method has the advantages of simpledevice, simple technology and operation, small labor intensity, high automation degree and easy parameter control, and can realize the recovery and utilization of the molybdenum concentrate, and the recovery rate of molybdenum is increased from 80-90% to more than 98% from the rhenium molybdenum concentrate-containing high lead to a lead reduction rhenium preservation method.

Description

technical field [0001] The invention relates to a method for separating and recovering precipitates after processing high-lead-containing rhenium-molybdenum concentrates, belonging to the field of chemical metallurgy. Background technique [0002] Molybdenum is a refractory rare metal with excellent physical, chemical and mechanical properties. It is widely used in iron and steel, nonferrous metallurgy industry, petroleum and chemical industries. [0003] Molybdenite has the largest reserves and the most industrial application value among molybdenum ores. However, molybdenite is generally associated with most metal ores (such as galena, etc.), so molybdenite will involve a series of impurity removal and purification processes in mining, smelting and chemical production, especially the need to combine molybdenum and Lead is separated. The recovery rate of molybdenum metal is an important economic and technical index in the impurity removal and purification process, and it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/00C22B3/04C22B13/00C22B34/34
CPCY02P10/20
Inventor 徐吉峰白宏斌薛丽英王伟王子川马高峰郭金亮孙国青田莎莎谢亚宁马晓莹冯宝奇
Owner 西部鑫兴金属材料有限公司