Patents by Inventor Yang-Min Liang

Yang-Min Liang 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 preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using titanium-silicalite molecular sieve
    Patent number: 8540956
    Abstract: The present invention provides a method for preparing large particles of titanium-silicalite molecular sieves. The method of the present invention includes the steps of preparing a dispersion solution of a primary crystalline molecular sieve; forming an aggregated particle solution by adding a flocculating agent and a coagulating agent into the dispersion solution; mixing the aggregated particle solution with a synthesis gel to form a mixture; and heat-treating the mixture. The average diameter of the titanium-silicalite molecular sieves in the present invention is more than 5 ?m. In the preparation of cyclohexanone oxime using the molecular sieve of the present invention as the catalyst, the selectivity and conversion rate of cyclohexanone oxime are high, the usage of hydrogen peroxide is enhanced, and the catalyst is easy to be recovered.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: September 24, 2013
    Assignee: China Petrochemical Development Corporation
    Inventors: Pin-To Yao, Cheng-Fa Hsieh, Shih-Yao Chao, Yang-Min Liang
  • METHOD FOR PREPARING TITANIUM-SILICALITE MOLECULAR SIEVE AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING TITANIUM-SILICALITE MOLECULAR SIEVE
    Publication number: 20110144328
    Abstract: The present invention provides a method for preparing large particles of titanium-silicalite molecular sieves. The method of the present invention includes the steps of preparing a dispersion solution of a primary crystalline molecular sieve; forming an aggregated particle solution by adding a flocculating agent and a coagulating agent into the dispersion solution; mixing the aggregated particle solution with a synthesis gel to form a mixture; and heat-treating the mixture. The average diameter of the titanium-silicalite molecular sieves in the present invention is more than 5 ?m. In the preparation of cyclohexanone oxime using the molecular sieve of the present invention as the catalyst, the selectivity and conversion rate of cyclohexanone oxime are high, the usage of hydrogen peroxide is enhanced, and the catalyst is easy to be recovered.
    Type: Application
    Filed: March 29, 2010
    Publication date: June 16, 2011
    Applicant: CHINA PETROCHEMICAL DEVELOPMENT CORPORATION
    Inventors: Pin-To Yao, Cheng-Fa Hsieh, Shih-Yao Chao, Yang-Min Liang