Cradle to Gate
Identity ID
8d0e5bed-c00f-48ef-9d80-2172bb582946
Materials
Associated ID
2d3b5c41-092c-48c7-856c-f0d66530385c
Included activities starts
Included activities ends
Description
The product represented by this dataset is cathode zinc, a core intermediate product yielded by the electrowinning process in the hydrometallurgical zinc flow, with prominent core characteristics: the zinc purity can reach 99.99% with extremely low impurity content and strong purity stability; it mostly appears as flakes or plates with a regular physical form, is chemically stable, and can directly match the requirements of subsequent melting and casting. Its upstream and downstream industry chains are closely connected: the upstream core raw material is fresh zinc sulfate solution (obtained from the leaching and purification of zinc calcine), and downstream is the zinc metal melting and casting stage, where it serves as the core raw material for the melting and casting process, producing finished zinc metal through heating and melting, refining and impurity removal, and casting forming, which is then processed into galvanized materials, zinc alloys, and other terminal products. It broadly supports the development of construction, transportation, electric power, manufacturing, and other industrial fields, and is a key intermediate carrier in the hydrometallurgical zinc industry chain connecting fresh zinc sulfate solution with finished zinc metal. The entire production process focuses on the electrowinning stage of hydrometallurgical zinc, covering the full electrochemical conversion process from the input of fresh zinc sulfate solution to the output of finished cathode zinc. The dataset includes the main raw and auxiliary materials, energy, and waste in the production process; infrastructure such as the manufacturing of production equipment and the construction of plants is not included within the dataset boundary. The data inventory is formed by merging data from multiple sources.
Activity Description
The entire production process includes the electrowinning process of zinc hydrometallurgy, covering the entire process from new zinc sulfate solution to cathode zinc.
Process Description
The cathode zinc obtained by the electrowinning process is an important intermediate product of hydrometallurgical zinc smelting. The zinc purity can reach 99.99% and is suitable for subsequent melting and casting of metallic zinc.
Time period
2021
2026
Geography
China
Geography comment
Generated by merging multiple data sets in this geographical location.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The purified zinc sulfate solution is added with additives (bone glue, strontium carbonate, etc.), and is continuously sent to the electrolytic cell through a high-level tank for electrolytic deposition to obtain cathode zinc (Zn99.99%). The metal recovery rate during the electrolysis process is 99.30%.