Patents by Inventor Hui SHAOLIANG

Hui SHAOLIANG 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).

  • Patent number: 8540960
    Abstract: A method for producing of ultra-clean and High-purity electronic grade reagents is disclosed. The industrial grade reagents are chemically pretreated and filtered, and the colature is rectified. Heating the steam during the rectification to overheated steam, and filtering the overheated steam used the microporous membrane to remove the solid particulates. Condensing the overheated steam and the secondarily filter to remove the dust in the product. Due to the adoption of the technical scheme, the ultra-clean and High-purity isopropanol produced is in conformity with standard SEMI-C12 and the hydrochloric acid to standard SEMI-C8. And the method is applicable for the large-scale continuous production.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: September 24, 2013
    Assignee: Shanghai Chemical Reagent Research Institute
    Inventors: Jiarong Zhan, Mao Huiping, Hui Shaoliang, Shen Zheyu
  • Publication number: 20110094872
    Abstract: A method for producing of ultra-clean and High-purity electronic grade reagents is disclosed. The industrial grade reagents are chemically pretreated and filtered, and the colature is rectified. Heating the steam during the rectification to overheated steam, and filtering the overheated steam used the microporous membrane to remove the solid particulates. Condensing the overheated steam and the secondarily filter to remove the dust in the product. Due to the adoption of the technical scheme, the ultra-clean and High-purity isopropanol produced is in conformity with standard SEMI-C12 and the hydrochloric acid to standard SEMI-C8. And the method is applicable for the large-scale continuous production.
    Type: Application
    Filed: October 28, 2010
    Publication date: April 28, 2011
    Inventors: Jiarong ZHAN, Mao HUIPING, Hui SHAOLIANG, Shen ZHEYU