A waste circuit board precious metal recovery device based on cyanogenic biofilm reactor
A biofilm reactor and precious metal recovery technology, applied in the direction of improving process efficiency, can solve the problem of almost no precious metal information on circuit boards, and achieve the effect of low consumption
Active Publication Date: 2018-09-14
YANGZHOU UNIV
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Problems solved by technology
[0004] At present, there are few patents related to the recovery of precious metals in waste circuit boards through efficient bioleaching technology and equipment. little information
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] as attached figure 1 As shown, a waste circuit board precious metal recovery device based on a cyanogenic biofilm reactor of the present invention includes a medium storage tank 1, an airlift circulation biofilm reactor 2, a gas supply system 4, a sampling device 6, an electric Control box 9, metal ion online monitoring system 10 and control system 11, air-lift circulation biofilm reactor 2 contains biofilm carrier 3, medium storage tank 1 is connected to air-lift circulation biofilm reactor through medium pump 16 The medium inlet 13 on the 2 is connected, the gas supply system 4 is connected with the air-lift circulation type biofilm reactor 2 through the gas pump 14, the sampling device 6 is connected with the air-lift circulation type biofilm reactor 2, and the gas supply system 4 is connected with the air-lift circulation type biofilm reactor...
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The invention relates to a waste circuit board precious metal recovery device based on a cyanogenic biofilm reactor, which includes a medium storage tank, an airlift circulation biofilm reactor, a gas supply system, a sampling device, an electric control box, and a metal ion online Monitoring system and control system, the air-lift circulation biofilm reactor contains biofilm carriers, the culture medium storage tank is connected with the medium inlet on the air-lift circulation biofilm reactor through the medium pump, and the gas supply system passes through The gas pump is connected to the air-lift circulation biofilm reactor, the sampling device is connected to the air-lift circulation biofilm reactor, and the air-lift circulation biofilm reactor is provided with a solution pump for pumping out the metal ion solution. The electric control box is electrically connected with the sampling device, the metal ion online monitoring system, the control system, the solution pump, the gas pump and the culture medium pump respectively. The device of the invention can realize efficient and stable leaching of precious metals, has no pollution in use, and is environmentally friendly.
Description
technical field [0001] The invention relates to the separation and recovery of precious metals from waste circuit boards, in particular to a recovery device for precious metals from waste circuit boards based on a cyanogenic biofilm reactor. Background technique [0002] With the continuous advancement of science and technology, the emergence of electronic and electrical products has made people's living standards improve day by day. Circuit boards are the core components of various electronic and electrical products, and their scrap volume continues to increase with the increase in the amount of waste electronic and electrical products. Waste circuit boards are rich in metal resources, including precious metals such as gold, silver, and palladium, non-ferrous metals such as copper, aluminum, zinc, tin, and lead, and base metals such as iron. In addition, waste circuit boards also contain a large amount of non-metallic resources. Therefore, the recycling of waste circuit b...
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IPC IPC(8): C22B7/00C22B3/18C22B3/46C22B11/08
CPCC22B3/18C22B3/46C22B7/007C22B11/046C22B11/08Y02P10/20
Inventor 胡建阮菊俊梅丽娟张洋李青王悦
Owner YANGZHOU UNIV