A recovery device for precious metals in spent catalysts
A technology of waste catalyst and recovery device, applied in the field of resource recovery and comprehensive utilization, can solve problems such as secondary organic pollution, and achieve the effects of simple operation, good application prospect and manpower saving.
Inactive Publication Date: 2015-09-30
DALIAN DONGTAI INDAL WASTE TREATMENT
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Problems solved by technology
However, this chelating agent is difficult to be degraded in the natural environment, so long-term and large-scale use of this type of chelating agent brings secondary organic pollution
Method used
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[0010] The following examples will further illustrate the present invention, but do not limit the present invention.
[0011] After weighing the raw materials (150kg waste catalyst, 19kg waste toner, 14kg clay and 15kg water), add the waste toner and waste catalyst to the mixing tank 1 through the material inlet 11, and slowly stir for 20 minutes by the stirring device 12, fully After mixing, add clay and water through the material inlet 11, continue to mix evenly, and then convey the material to the granulator 3 through the conveyor 2 connected to the lower part of the mixing tank 1 for granulation. The diameter of the granules is 5~7cm. The granulated material is evenly spread in the continuous dry distillation device 4 through the screen machine 41 to ensure that the furnace bottom is fully covered to prevent local dry burning from causing damage to the furnace body, and then sealed Dry distillation; start heating, increase from room temperature to 450°C and keep it for 2.5 ho...
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Abstract
The invention discloses a recycling device for noble metals in waste catalyst. The recycling device comprises a stirring tank, a pelletizer, a dry distillation device, a screening machine, a kettle-type treater, a storage tank and a recycling tank, wherein the lower side surface of the stirring tank is connected with a transmission device; the stirring tank, the pelletizer and the screening machine are connected by the transmission device; the screening machine is arranged above the dry distillation device; the dry distillation device is connected with the side bottom of the kettle-type treater by the transmission device; the kettle-type treater is connected with the filter, the storage tank and the recycling tank by a pipeline; a material inlet is arranged on the top of the stirring tank; a stirring device is arranged in the inner cavity of the stirring tank; a material hole is arranged on the upper part of the kettle-type treater; a stirrer is arranged on the inner part of the kettle-type treater; and a liquid inlet is arranged on the side part of the storage tank. The device for recycling the waste metal catalyst provided by the invention is simple to operate, saves manpower, and has low consumption, high efficiency and a good application prospect.
Description
Technical field [0001] The invention belongs to the field of resource recovery and comprehensive utilization, and specifically relates to a device for recovering precious metals in waste catalysts. Background technique [0002] The consumption of commonly used metals in industrial and agricultural production such as iron and steel, chemicals, and special materials is huge. In recent years, my country has paid more and more attention to the comprehensive utilization of primary resources and the research and development of secondary resource utilization, especially the research and development of recovering valuable metals from waste catalysts. attention. However, compared with foreign countries, there is still a big gap in the level of utilization of secondary resources in my country. [0003] However, as demand increases, the predictable reserves of metals continue to decline. At the same time, the amount of precious metal-containing wastes is also increasing. Therefore, recycling...
Claims
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IPC IPC(8): C22B7/00C22B11/00C10G1/00C10B53/08
CPCY02W30/54Y02P10/20
Inventor 张秋玲武伟男王琪智刘晶
Owner DALIAN DONGTAI INDAL WASTE TREATMENT