Patents by Inventor Shaoyong Yan

Shaoyong Yan 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 co-producing alumina and activated calcium silicate from high-alumina fly ash
    Patent number: 9139445
    Abstract: A method for co-producing alumina and activated calcium silicate from high-alumina fly ash, comprising the steps that: high-alumina fly ash reacts with sodium hydroxide solution to obtain desiliconized solution and desiliconized fly ash; milk of lime is added to the desiliconized solution to obtain activated calcium silicate; limestone and sodium carbonate solution are added to the desiliconized fly ash to blend raw slurry, the raw slurry is baked into clinker, and sodium aluminate crude solution is obtained from dissolution of the clinker; the sodium aluminate crude solution is subjected to the processes of first-stage deep desiliconization, second-stage deep desiliconization, carbonization decomposition, seed precipitation and etc to obtain alumina.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 22, 2015
    Assignee: INNER MONGOLIA DATANG INTERNATIONAL RECYCLING RESOURCE DEVELOPMENT CO., LTD.
    Inventors: Junmin Sun, Zhanjun Zhang, Gang Chen, Shaoyong Yan, Qizhi Huo, Licheng Wu, Hongli Xu, Lian Qin, Xiaoxia Chen
  • METHOD FOR CO-PRODUCING ALUMINA AND ACTIVATED CALCIUM SILICATE FROM HIGH-ALUMINA FLY ASH
    Publication number: 20130343971
    Abstract: A method for co-producing alumina and activated calcium silicate from high-alumina fly ash, comprising the steps that: high-alumina fly ash reacts with sodium hydroxide solution to obtain desiliconized solution and desiliconized fly ash; lime cream is added to the desiliconized solution to obtain activated calcium silicate; limestone and sodium carbonate solution are added to the desiliconized fly ash to blend raw slurry, the raw slurry is baked into clinker, and sodium aluminate crude solution is obtained from dissolution of the clinker; the sodium aluminate crude solution is subjected to the processes of first-stage deep desiliconization, second-stage deep desiliconization, carbonization decomposition, seed precipitation and etc to obtain alumina.
    Type: Application
    Filed: August 28, 2013
    Publication date: December 26, 2013
    Applicant: Inner Mongolia Datang International Recycling Resource Development Co., Ltd.
    Inventors: JUNMIN SUN, Zhanjun Zhang, Gang Chen, Shaoyong Yan, Qizhi Huo, Licheng Wu, Hongli Xu, Lian Qin, Xiaoxia Chen