Patents by Inventor Dongqiang Ma

Dongqiang Ma 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).

  • Process and apparatus for co-producing cyclohexanol and alkanol
    Patent number: 9561991
    Abstract: This invention relates to a process for co-producing cyclohexanol and alkanol, including a cyclohexene esterification step and a cyclohexyl ester hydrogenation step. This invention further relates to a process for further producing cyclohexanone or caprolactam, starting from the co-producing process, and an apparatus for co-producing cyclohexanol and alkanol. The process for co-producing cyclohexanol and alkanol of this invention is environment-friendly, with low production cost and highly improved atom economy.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: February 7, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Baoning Zong, Dongqiang Ma, Langyou Wen, Bin Sun, Keyong Yang
  • PROCESS AND APPARATUS FOR CO-PRODUCING CYCLOHEXANOL AND ALKANOL
    Publication number: 20150274620
    Abstract: This invention relates to a process for co-producing cyclohexanol and alkanol, including a cyclohexene esterification step and a cyclohexyl ester hydrogenation step. This invention further relates to a process for further producing cyclohexanone or caprolactam, starting from the co-producing process, and an apparatus for co-producing cyclohexanol and alkanol. The process for co-producing cyclohexanol and alkanol of this invention is environment-friendly, with low production cost and highly improved atom economy.
    Type: Application
    Filed: September 17, 2013
    Publication date: October 1, 2015
    Inventors: Baoning Zong, Dongqiang Ma, Langyou Wen, Bin Sun, Keyong Yang