Patents by Inventor Aigin Wang

Aigin Wang 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 of preparing ethylene glycol from cellulose
    Patent number: 7960594
    Abstract: A method for preparing ethylene glycol from cellulose uses the cellulose as the feed for the reaction. The cellulose conversion is performed over catalysts which are composed of the metallic state, carbides, nitrides, or phosiphides of molybdenum or tungsten, and metallic cobalt, nickel, ruthenium, rhodium, palladium, iridium, and platinum of the group 8, 9, or 10 transition metals. The catalytic conversion of cellulose is conducted at 120 to 300° C. and hydrogen pressure 1 to 12 MPa under the hydrothermal conditions to achieve the high efficiency, high selectivity, and high yield of ethylene glycol. Compared to the existing method of preparing ethylene glycol from ethylene, the method, using the renewable raw material for the reaction, is friendly to the environment, and has high atom economy.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: June 14, 2011
    Inventors: Tao Zhang, Mingyuan Zheng, Na Ji, Aigin Wang, Yuying Shu, Hui Wang, Xiaodong Wang, Jingguang Chen
  • METHOD OF PREPARING ETHYLENE GLYCOL CELLULOSE
    Publication number: 20100256424
    Abstract: A method for preparing ethylene glycol from cellulose uses the cellulose as the feed for the reaction. The cellulose conversion is performed over catalysts which are composed of the metallic state, carbides, nitrides, or phosiphides of molybdenum or tungsten, and metallic cobalt, nickel, ruthenium, rhodium, palladium, iridium, and platinum of the group 8, 9, or 10 transition metals. The catalytic conversion of cellulose is conducted at 120 to 300° C. and hydrogen pressure 1 to 12 MPa under the hydrothermal conditions to achieve the high efficiency, high selectivity, and high yield of ethylene glycol. Compared to the existing method of preparing ethylene glycol from ethylene, the method, using the renewable raw material for the reaction, is friendly to the environment, and has high atom economy.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 7, 2010
    Inventors: Tao Zhang, Mingyuan Zheng, Na Ji, Aigin Wang, Yuying Shu, Hui Wang, Xiaodong Wang, Jingguang Chen