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  • Smelting of tin
    Smelting of tin

    Tin recycling is a complex process involving multiple steps and technologies, with the main purpose of recovering tin resources from discarded tin products or tin containing waste, and achieving resource recycling. The following are the main methods and steps for tin recycling treatment: 1、 The main methods of tin recycling Chemical recycling Acid leaching method: By adding an appropriate amount of acid, tin ions in waste tin react with the acid to generate soluble tin salts, thereby achieving tin recovery. This method has a high recovery rate, but attention should be paid to the possible waste gas and liquid generated during the reaction process, which need to be properly treated. Solvent extraction method: using specific organic solvents to extract tin ions from waste tin, and then obtaining pure tin through subsequent processing. This method is suitable for situations with low tin content and high recovery rate, but suitable solvents and extraction conditions need to be selected. Physical recycling method Electrolysis method: By electrolysis, tin ions in waste tin are reduced to metallic tin and deposited on the electrode. This method is suitable for situations where there are many impurities in the waste tin, and tin can be separated from other impurities through the electrolysis process. The recovery rate of electrolysis method is relatively high, but the equipment investment is large and the operating cost is also high. Magnetic separation method: By utilizing the magnetic difference of tin, tin is separated from waste tin through the action of a magnetic field. This method is suitable for situations with high tin content and significant magnetic differences, with simple operation but relatively low recovery rate. Biological recycling Utilize the metabolic activity of microorganisms to recycle tin back and forth. By cultivating specific microorganisms, they react with tin ions in waste tin to generate tin containing biological precipitates, which are then processed to obtain pure tin. This method has the advantages of environmental protection and energy conservation, but the recovery rate is relatively low and the technology is not yet mature, requiring further research and improvement. Other Technologies Technologies such as ion exchange resin treatment and activated carbon adsorption treatment each have their own characteristics, and suitable methods can be selected based on the properties and treatment requirements of waste tin.

    2024-10-16

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  • factory safety production training activities
    factory safety production training activities

    factory safety production training activities this morning

    2024-10-10

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  • Lead metallurgy process - pyrometallurgical lead smelting (three-stage furnace lead smelting method)
    Lead metallurgy process - pyrometallurgical lead smelting (three-stage furnace lead smelting method)

    Yuguang three-stage furnace lead smelting method The main process of Yuguang three-stage furnace lead smelting is bottom blowing furnace oxidation desulfurization, bottom blowing furnace reduction, and fuming furnace recovery of zinc. It was industrialized and applied in 2010. Cancel the blast furnace, eliminate metallurgical coke, and achieve direct reduction of liquid slag. Together with the original oxygen enriched bottom blowing furnace oxidation section, form a complete industrial production system for direct reduction of liquid slag. The specific technical solution is to mix lead concentrate, limestone, quartz sand, etc. and send them to an oxygen bottom blowing furnace for smelting, producing crude lead, liquid slag, and dusty flue gas. Liquid high lead slag is directly fed into the horizontal reduction furnace, with natural gas and oxygen supplied by the bottom spray gun, and a feeding port provided at the top for adding coal particles and stones. The slag is discharged intermittently. The partial oxidation combustion of natural gas and coal particles releases heat, maintaining the temperature required for the reduction reaction. Under gas stirring and mass transfer, the reduction of high lead slag is achieved.

    2024-10-09

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  • new scrap lead electrolysis machine system is making for clients in our factory include lead ingot casting machine
    new scrap lead electrolysis machine system is making for clients in our factory include lead ingot casting machine

    include lead anode plate cating machine system , cathode plate casting machne system ,scrap anode scrubber system ect.

    2024-10-08

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  • Classification and Recycling of Waste Aluminum
    Classification and Recycling of Waste Aluminum

    Classification and Recycling of Waste Aluminum，Waste aluminum is divided into two categories: new waste aluminum and old waste aluminum

    2024-10-07

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  • The process of extracting zinc from refined zinc sulfide ore mainly includes the following steps
    The process of extracting zinc from refined zinc sulfide ore mainly includes the following steps

    The process of extracting zinc from refined zinc sulfide ore mainly includes the following steps

    2024-09-27

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