Patents by Inventor Changjiu XIA

Changjiu XIA 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).

  • Tin-titanium-silicon molecular sieve, preparation method and application thereof
    Publication number: 20230356202
    Abstract: A tin-titanium-silicon molecular sieve, a preparation method and an application thereof are provided. The electron binding energy of framework tin active centers in the tin-titanium-silicon molecular sieve is 488.5 eV or less. In the tin-titanium-silicon molecular sieve, the molar ratio of titanium to silicon is preferably 0.005-0.03, and the molar ratio of tin to silicon is preferably 0.005-0.025. The tin-titanium-silicon molecular sieve of the invention has more catalytic active centers, a lower electron binding energy of framework tin active centers, and an excellent catalytic performance.
    Type: Application
    Filed: August 26, 2021
    Publication date: November 9, 2023
    Inventors: Changjiu XIA, Yujia LIU, Xinxin PENG, Min LIN, Bin ZHU, Xingtian SHU
  • Titanium silicalite molecular sieve and its synthesis
    Patent number: 9896343
    Abstract: The present invention relates to a titanium silicalite molecular sieve, wherein the crystal grain of the titanium silicalite molecular sieve has a ratio of (surface Si/Ti ratio):(bulk Si/Ti ratio) being larger than 1.1 and less than 5.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: February 20, 2018
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Changjiu Xia, Bin Zhu, Min Lin, Xinxin Peng, Xingtian Shu, Chunfeng Shi
  • Full-Si molecular sieve and its synthesis process
    Patent number: 9656251
    Abstract: The present invention relates to a full-Si molecular sieve, wherein the full-Si molecular sieve has a Q4/Q3 of (10-90):1 wherein Q4 is the peak strength at the chemical shift of ?112±2 ppm in the 29Si NMR spectrum of the full-Si molecular sieve, expressed as the peak height relative to the base line; and Q3 is the peak strength at the chemical shift of ?103±2 ppm in the 29Si NMR spectrum of the full-Si molecular sieve, expressed as the peak height relative to the base line.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 23, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Xingtian Shu, Changjiu Xia, Min Lin, Bin Zhu, Xinxin Peng, Aiguo Zheng, Mudi Xin, Yanjuan Xiang, Chunfeng Shi
  • Full-Si Molecular Sieve and its Synthesis Process
    Publication number: 20150119569
    Abstract: The present invention relates to a full-Si molecular sieve, wherein the full-Si molecular sieve has a Q4/Q3 of (10-90):1.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Xingtian SHU, Changjiu XIA, Min LIN, Bin ZHU, Xinxin PENG, Aiguo ZHENG, Mudi XIN, Yanjuan XIANG, Chunfeng SHI
  • Titanium silicalite molecular sieve and its synthesis
    Publication number: 20150118149
    Abstract: The present invention relates to a titanium silicalite molecular sieve, wherein the crystal grain of the titanium silicalite molecular sieve has a ratio of (surface Si/Ti ratio):(bulk Si/Ti ratio) being larger than 1.1 and less than 5.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Changjiu XIA, Bin ZHU, Min LIN, Xinxin PENG, Xingtian SHU, Chunfeng SHI
  • Gaming device
    Patent number: D1025221
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: April 30, 2024
    Inventors: Guanhua Su, Changjiu Xia, Nanxiang Dong, Yongqiu Cai