Tin & Lead Separation and Recycling-Plant-Changsha Metalcess Intelligent Equipment Co., Ltd.-Metallurgical Equipment Design and Manufacturing, Process Technology Package Delivery, and Automation Integration

Tin & Lead Separation and Recycling

Tin separation can be achieved successfully by Vacuum distillation unit manufactured by Metalcess. Many lead battery scrap recycling plant send harris dross back to rotary furnace and produce Lead-Tin alloy, by VDU/VDF, Lead can be separated from Tin. Tin from soldering Tin, Lead-Tin alloy, and Lead-Tin-Antimony alloy can be separated to produce high purity Tin ingot (99%-99.99%) by the combination of vacuum distillation furnace process, tin fire-refining process and crystallization process. Our Tin and Lead separation technology and equipment has a high recovery rate and high grade output product, which give clients a high economic payback. The production capacity can be 3 tons per day to hundreds tons per day.

Raw Material

High purity Tin ingot product can be produced from varies of raw materials, such as soldering Tin alloy, Tin dross, slag, Tin ore, concentrate and so on with a good selection of technological process and equipment.

The main contents of soldering Tin are Lead and Tin with impurities such as Copper, Iron, Arsenic, Antimony, Bismuth, Silver, and etc. These impurities need to be removed through refining process to produce high Tin product( 99-99.999%). The final Tin purity depends on the impirities compositions in the specific raw materials, the combination of the process and equipment, as well as the proficiency of the operators.

Soldering Tin (Lead-Tin alloy, Tin-Lead-Antimony alloy): Scrap soldering Tin recovered from waste circuit board recycling
Tin slag: Recycled from smelting plants, harris dross recycling, lead refining dross recycling
Tin dross and scum: From Lead smelting and Lead-acid battery scrap smelting and refining process

Output Product

Crude Lead: Pb＞99%, Sn＜0.3%

Tin Ingot: 99%-99.999% purity

Process Description

Firstly, impurities such as iron, copper, arsenic and antimony of crude Tin are removed in a refining pot.

Then the Lead-Tin alloy/ Lead-Tin-Antimony alloy after impurities removal is sent to vacuum distillation to remove Lead and Bismuth, and usually Antimony is also evaporated along with Lead.

The crude Lead produced can be sold directly or be proecssed further in Lead refining line to produce high-purity Lead ingot.

Varies along with the chemical composition of the feed material, 90-99% Tin product can be obtained through one to three stages of vacuum distillations.

If super high purity Tin product is required, electrically heated spiral crystallizer will be installed to produce 99.9-99.999% Tin ingot .

Tin Fire-refining Kettles for Cu, Fe, As, and Sb Removing

Fire-refining Kettles for Cu, Fe, As, and Sb Removing

Tin Refining kettles made of stainlesss steel or cast steel is used for removing impurities.

It consists of kettle cover, stove, kettle body, agitator, NG combustion burner & control valve train & control cabinet, refractory brick for oven hearth.

To avoid Iron's dissolution in melton Tin and obtain a longer service life, stainless steel kettle are more suggested.

Vacuum Distillation Furnace for Lead and Tin Separation

Vacuum Distillation Furnace for Lead and Tin Separation

Vacuum distillation furnace is a high efficiency equipment for Lead separation from Tin.

Under vacuum atmosphere, the Lead, Bismuth, and Antimony in the alloy are evaporated by heating, and then the vapor is cooled and collected at distillation disk while Tin flows down into the distillation receiving tray. Tin and Lead are separated and be collected by two independent collection tubes.

The boiling point difference between different metals is the key to the separation achieved by the vacuum furnace. In actual applications, the appropriate melting temperature and vacuum degree need to be determined according to the composition and properties of the input alloy so as to ensure high separation effeciency and output metal purity.

Electric Heating Spiral Crystallizer Refining

Electric Heating Spiral Crystallizer Refining

Spriral crystallizer is mainly used for high purity Tin production.

It has the advantages of low maintenance cost and low equipment investment.

99.9%-99.99% purity Tin can be produced with it.

WHY Metalcess For Your New Project

For specific projects, not all of the above mentioned Tin refining equipment will be installed. With our 30 years of experience in the Tin smelting industry, Metalcess can identify the most suitable technical process to remove different types of impurities in the Lead-tin-antimony alloy so as to reach a high purity (99%-99.999% Tin) final product, based on the right selection of Tin refining equipment. And we always aim to shorten the process flow, reduce energy consumption, and improve the working environment of the operators with a high lever of systematic intelligent automation intergration.

The Tin smelting electric furnaces, refining pots, vacuum distillation furnaces, and electric heating crystallizers manufactured by Metalcess is of high product purity, high metal recovery rate, clean working environment, intelligent operation, low labor costs, and can meet local environmental protection requirements.

Metalcess can provide customized one-stop services for your Tin recycling project, including process design, equipment selection, equipment manufacturing, installation and commissioning guidance, as well as operator training, until the qualified final products are produced.