Patents by Inventor Weirong GAO

Weirong GAO 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 and apparatus for the recovery and deep treatment of polluted acid
    Patent number: 10662075
    Abstract: A method and an apparatus for recovery and deep treatment of a polluted acid. The method comprises the following main steps: (1) selectively adsorbing rare and noble metals, such as rhenium, selenium and the like; (2) separating copper from arsenic to recover the copper; (3) carrying out efficient vulcanization to perform deep arsenic removal; (4) carrying out electrodialysis to pre-concentrate acid; (5) evaporating and concentrating the acid; (6) carrying out an air-stripping method to remove fluorine and chlorine. The polluted acid treatment apparatus mainly comprises a precision filtering tank, a special adsorbing tank, a copper-arsenic separation device, a vulcanization device, an electrodialysis device, an evaporative concentration device, and an air-stripping device.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 26, 2020
    Assignee: Central South University
    Inventors: Liyuan Chai, Qingwei Wang, Guomin Jiang, Chengyun Zhou, Qingzhu Li, Zhihui Yang, Weirong Gao
  • METHOD AND APPARATUS FOR THE RECOVERY AND DEEP TREATMENT OF POLLUTED ACID
    Publication number: 20190023585
    Abstract: A method and an apparatus for recovery and deep treatment of a polluted acid. The method comprises the following main steps: (1) selectively adsorbing rare and noble metals, such as rhenium, selenium and the like; (2) separating copper from arsenic to recover the copper; (3) carrying out efficient vulcanization to perform deep arsenic removal; (4) carrying out electrodialysis to pre-concentrate acid; (5) evaporating and concentrating the acid; (6) carrying out an air-stripping method to remove fluorine and chlorine. The polluted acid treatment apparatus mainly comprises a precision filtering tank, a special adsorbing tank, a copper-arsenic separation device, a vulcanization device, an electrodialysis device, an evaporative concentration device, and an air-stripping device.
    Type: Application
    Filed: September 9, 2016
    Publication date: January 24, 2019
    Applicant: Central South University
    Inventors: Liyuan CHAI, Qingwei WANG, Guomin JIANG, Chengyun ZHOU, Qingzhu LI, Zhihui YANG, Weirong GAO