Xiaowei Liu

Title: Innovations by Xiaowei Liu in Lead Oxide Recycling

Introduction

Xiaowei Liu is a notable inventor based in Changxing, China, recognized for his contributions to the field of recycling lead oxide-containing materials. With a total of two patents to his name, Liu has developed innovative methods that significantly enhance the efficiency and sustainability of lead recovery processes.

Latest Patents

Liu's latest patents include a method for recycling lead oxide-containing waste material. This method involves several steps: first, the lead oxide-containing waste material is contacted with a desulphurizer under specific reaction conditions, followed by solid-liquid separation to obtain a filtrate and filtration residue. The filtration residue is then subjected to a conversion reaction at temperatures between 350-750°C to convert lead-containing components into lead oxide. The product is subsequently treated with an alkaline solution to dissolve the PbO, leading to the crystallization of PbO crystals. This innovative approach not only reduces energy consumption but also improves the overall efficiency of the recycling process.

Another significant patent by Liu is a method for directly recovering lead oxide used for lead-acid battery cathodes from waste lead paste. This method also involves contacting waste lead paste with a barium-containing desulphurizer and performing solid-liquid separation. The filtration residue undergoes a conversion reaction at similar temperatures to recover lead oxide. By quantitatively replenishing a barium sulfate additive during desulphurization, this method effectively decreases recovery costs and energy consumption while enhancing the comprehensive utilization of waste lead paste.

Career Highlights

Throughout his career, Xiaowei Liu has worked with prominent organizations, including Chilwee Power Co. Ltd and Beijing University of Chemical Technology. His experience in these institutions has contributed to his expertise in lead recycling technologies and sustainable practices.

Collaborations

[This section has been skipped due to space constraints.]

Conclusion

Xiaowei Liu's innovative methods for recycling lead oxide-containing materials demonstrate his commitment to advancing sustainable practices in the industry. His contributions not only address environmental concerns but also enhance the efficiency of lead recovery processes.