One of the products obtained from processing lead and copper dust.
Product Name:
Thallium
Production Site
Lead Plant, Ust-Kamenogorsk Metallurgical Complex
Process Flowsheet
Thallium extraction and re-extraction, deposition and decomposition of Tl chromate, cementation and melting of thallium briquettes when Cu and Pb Plant dusts are treated.
Production output per year:
6 tpa
Application
- optical glass
- prisms
- microscopes
- Thallium hydroxide is added to glass to enhance its refraction.
- low-temperature thermometers for far north
- Thallium amalgam hardens only at above 60 degrees Celsius, and is used for making thermometers.
Tl (min) | 99.98% |
Fe (max) | 0.001% |
Cd (max) | 0.003% |
Cu (max) | 0.003% |
Pb (max) | 0.01% |
Zn (max) | 0.003% |
Total impurities | 0.020% |