Juhai Deng

Title: Juhai Deng and a More Efficient Method for Recovering Metals from Copper Anode Slime.

Introduction

Juhai Deng is an inventor associated with Kunming University of Science and Technology in Kunming, China. His patent work addresses the recovery of valuable metals from copper anode slime, a material generated during copper refining.

Latest Patents

Deng is associated with 1 patent, titled “Recovery Method for Valuable Metals in Copper Anode Slime.” The method recovers selenium, copper, tellurium, arsenic, lead, bismuth, gold, and silver. It uses two-step vacuum carbothermal reduction in place of conventional reduction smelting and stepwise blowing of noble lead. According to the patent description, this approach avoids arsenic-containing soot emissions associated with the traditional process.

The method also produces a gold-rich residue with very low levels of base metals, including lead, bismuth, antimony, and arsenic. After chlorination leaching and reduction, the residue can yield gold powder with a lower base-metal content than that produced by traditional processes. The described benefits include less slag, a shorter production cycle, and reduced precious-metal losses in slag.

Career Highlights

Deng’s listed patent highlights work on improving metal recovery in copper refining. The invention focuses on combining recovery of multiple valuable elements with reduced emissions and more efficient processing.

Collaborations

Deng’s listed coworkers include Bin Yang and Baoqiang Xu. The patent information provided connects his work with Kunming University of Science and Technology.

Conclusion

Juhai Deng’s patent presents a vacuum carbothermal approach to recovering valuable metals from copper anode slime while aiming to reduce arsenic emissions, slag production, processing time, and precious-metal losses.