Cradle to Gate
Identity ID
e1aabf5f-0271-4f67-8d30-9bb1c588dd2d
Materials
Associated ID
4005b1d1-0a17-4915-a55b-6c78788e5c50
Included activities starts
Included activities ends
Description
This dataset represents a product that is sinter block, a solid block-shaped intermediate product prepared from lead–zinc mixed concentrate blended with flux and returned dust via a high-temperature sintering process. Its core component indicators are clear: a zinc content of 41.76%, a total lead-and-zinc content (Pb+Zn) greater than 48%, a sulfur (S) content of approximately 5.5–6.5%, and a lead-to-zinc ratio of approximately 1:2.2; the product has the physical characteristics of dense structure and relatively high hardness, which can effectively reduce losses during conveying and meets the requirements of subsequent smelting processes. The upstream and downstream of this product are closely linked: the upstream core raw material is lead–zinc mixed concentrate, and the downstream is directly applied to the lead–zinc smelting stage as the core raw material for subsequent reduction smelting, blowing and other processes, used for efficient extraction of lead and zinc metals and then for producing lead–zinc alloys, lead-acid batteries, zinc-based functional materials and other products, broadly supporting the development of metallurgy, electronics, new energy, chemical and other industrial fields. The entire production process focuses on the sintering stage, with the full process covering the entire transformation process from the blending of lead–zinc mixed concentrate to the output of the sinter-block product. The dataset includes the main raw and auxiliary materials, energy and wastes in the production process; infrastructure such as the manufacture of production equipment and plant construction is not included within the boundary of the dataset; the data inventory is formed by merging data from multiple sources.
Activity Description
The entire production process includes the sintering process, covering the entire process from lead-zinc mixed concentrate to sintered blocks.
Process Description
Sinter block is a solid block product formed by high-temperature sintering process from lead-zinc mixed concentrate with flux and returned smoke dust. The zinc content is 41.76%, the Pb+Zn content is greater than 48%, the S content is about 5.5~6.5%, and the lead-zinc ratio is about 1:2.2. It has a dense structure and high hardness, which is convenient for transportation and subsequent smelting.
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 lead-zinc mixed concentrate is sintered with flux and recycled dust to produce sinter, and the generated flue gas is sent to the sulfuric acid plant for sulfuric acid production.