Patent · US Active

Method for preparing lead directly from lead-containing material by solid phase reaction

US11519054B2 · kind B2 · utility

0Cited by

2References

5Claims

0Family size

Assignee

University of Science and Technology Beijing · CN

Inventor

Chengyan Wang · Beijing, CN

Key dates

Filing date	Sep 20, 2019
Grant date	Dec 6, 2022
Priority date	—
Expiry date	Apr 1, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for preparing lead directly from a lead-containing material by a solid phase reaction, includes: step 1, adding the lead-containing material to be processed to the grinder, and adding a metal substance and water to the grinder, wherein an activity of the metal substance is larger than that of lead; the solid phase reaction between the lead-containing material and the metal substance is caused directly by the grinder through a mechanical force to obtain a reaction product; step 2, washing and filtering the reaction product to obtain the lead and a metal salt solution corresponding to the metal substance; step 3, performing a melt casting on the lead to obtain a crude lead, crystallizing the metal salt solution to obtain a metal salt corresponding to the metal substance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.