Cradle to Consumer
Identity ID
2ab07042-ece3-4d72-aee7-6055f33dcf0e
Materials
Associated ID
6ebcf90c-181d-45f6-b23f-e8123e26c8ed
Included activities starts
Included activities ends
Description
This dataset is a market dataset representing the consumption market of the region. The dataset includes the transport of the product from the gate to the consumption end, and the transport service is calculated based on the transport situation of the product in the region. The product represented by this dataset is purified zinc sulfate solution, the core intermediate product output from the purification process in the hydrometallurgical zinc smelting process. Its core characteristics are clear: the zinc content is approximately 140 g/L, and impurities such as lead, iron, copper, and cadmium in the solution have been largely removed, resulting in high purity and strong chemical stability, which can precisely match the stringent requirements of the subsequent zinc electrowinning process for raw material purity. Its upstream and downstream industry chains are closely connected: the upstream core raw material is the leachate output from the leaching process of hydrometallurgical zinc smelting, and downstream it is directly applied to the electrowinning stage of hydrometallurgical zinc smelting, serving as the core electrolyte of the electrolytic cell. Through electrochemical action, cathode zinc is deposited at the cathode, which is then processed by smelting and casting into zinc metal products, and finally processed into galvanized materials, zinc alloys and other terminal products, broadly supporting the development of construction, transportation, electric power, manufacturing and other industrial fields, making it a key intermediate carrier connecting the leachate and the electrowinning process in the hydrometallurgical zinc smelting industry chain. The entire production process focuses on the purification stage of hydrometallurgical zinc smelting, covering the entire purification and conversion process from the input of leachate to the output of the purified zinc sulfate solution product. The dataset includes the main raw and auxiliary materials, energy and waste of the production process, while infrastructure such as production equipment manufacturing and plant construction 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 purification step in zinc hydrometallurgy, covering the whole process from leachate to fresh zinc sulfate solution.
Process Description
The fresh zinc sulfate solution obtained from the purification process is an important intermediate product in hydrometallurgical zinc production. The zinc content is about 140 g/L, and most impurities have been removed. It is suitable for the subsequent zinc electrowinning process.
Time period
2021
2026
Geography
China,Gansu
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 main purpose of purification is to remove harmful impurities and residual impurities such as arsenic, antimony, germanium, etc.; at the same time, it enriches valuable metals such as copper, cadmium, and cobalt for further recycling. Purification methods are roughly divided into two categories: one is to add zinc powder to remove copper and cadmium, and then remove cobalt and nickel in the presence of an activator; the other is to add zinc powder to remove copper and cadmium, and then add special agents to react with cobalt to form an insoluble solid to remove cobalt. The purification process studied in this article adopts the zinc powder-xanthate method. The recovery rate of zinc during the purification process is generally 99.5%.