Patents by Inventor Xiaokui Liang

Xiaokui Liang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for recycling lead from waste glass containing lead
    Patent number: 8771620
    Abstract: Disclosed is a method for recycling lead from waste glass containing lead, which comprises the following steps: mechanical crushing waste glass containing lead, ball milling and screening to obtain glass powder containing lead; alkaline roasting the glass powder containing lead to obtain a roasted material; mixing polycarboxylic acid complexant and nitric acid to produce leaching agent, and then placing the roasted material into the leaching agent to obtain leachate; regulating pH value of the leachate to solidify metal ion to obtain precipitate, separating and removing impurities, rinsing and drying to obtain chemical product containing lead. The method avoids environment pollution caused by waste glass containing lead.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: July 8, 2014
    Assignee: Shenzhen Gem High-Tech Co., Ltd.
    Inventors: Kaihua Xu, Miaomiao Guo, Xianda He, Xiaokui Liang
  • METHOD FOR RECYCLING LEAD FROM WASTE GLASS CONTAINING LEAD
    Publication number: 20130129585
    Abstract: Disclosed is a method for recycling lead from waste glass containing lead, which comprises the following steps: mechanical crushing waste glass containing lead, ball milling and screening to obtain glass powder containing lead; alkaline roasting the glass powder containing lead to obtain a roasted material; mixing polycarboxylic acid complexant and nitric acid to produce leaching agent, and then placing the roasted material into the leaching agent to obtain leachate; regulating pH value of the leachate to solidify metal ion to obtain precipitate, separating and removing impurities, rinsing and drying to obtain chemical product containing lead. The method avoids environment pollution caused by waste glass containing lead.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 23, 2013
    Inventors: Kaihua Xu, Miaomiao Guo, Xianda He, Xiaokui Liang