Patents Assigned to Hunan Zhongchuang Chemical Co., Ltd.
  • Method of removing heavy hydrocarbons from reaction products in the production of sec-butyl acetate
    Patent number: 8373003
    Abstract: The present invention relates to a method of removing heavy hydrocarbon from reaction products in producing sec-butyl acetate, characterized in that the method comprises: drawing out materials from the enrichment area of the heavy hydrocarbon; contacting the materials with water sufficiently to make the heavy hydrocarbon in materials and the water stratify naturally wherein the heavy hydrocarbon is contained in the upper layer and the water is contained in the lower layer; and discharging the upper layer and recycling the lower layer into the system.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: February 12, 2013
    Assignee: Hunan Zhongchuang Chemical Co., Ltd.
    Inventors: Xiannian Hu, Hua Li, Pingxiang Xi
  • METHOD OF REMOVING HEAVY HYDROCARBONS FROM REACTION PRODUCTS IN THE PRODUCTION OF SEC-BUTYL ACETATE
    Publication number: 20100305355
    Abstract: The present invention relates to a method of removing heavy hydrocarbon from reaction products in producing sec-butyl acetate, characterized in that the method comprises: drawing out materials from the enrichment area of the heavy hydrocarbon; contacting the materials with water sufficiently to make the heavy hydrocarbon in materials and the water stratify naturally wherein the heavy hydrocarbon is contained in the upper layer and the water is contained in the lower layer; and discharging the upper layer and recycling the lower layer into the system.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 2, 2010
    Applicant: HUNAN ZHONGCHUANG CHEMICAL CO., LTD.
    Inventors: Xiannian Hu, Hua Li, Pingxiang Xi