Patents by Inventor Heping Jin

Heping Jin 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).

  • Preparation method for triphenylchloromethane
    Patent number: 12091375
    Abstract: Disclosed is a preparation method for triphenylchloromethane, comprising the following steps: adding hydrochloric acid or a mixture of hydrochloric acid and Lewis acid to a mixture of triphenylmethanol and an organic solvent; stirring for reaction; removing the water layer after the completion of reaction to obtain an organic solution containing triphenylchloromethane. In the method, the conversion rate of triphenylmethanol is almost quantitative to be above 99%, and the content of triphenylchloromethane in the product obtained is above 99%. The operation is simple, and no waste gas is generated. Therefore, the method is environmentally friendly and suitable for industrialized production and can achieve better economic benefits.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: September 17, 2024
    Assignees: Linhai Huanan Chemical Co., Ltd., Zhejiang Huahai Pharmaceutical Co., Ltd.
    Inventors: Lu Zhang, Guoliang Tu, Jianyue Xu, Heping Jin, Su Wang, Qi Hu, Sen Yang, Heng Liu
  • Preparation Method for Triphenylchloromethane
    Publication number: 20220234970
    Abstract: Disclosed is a preparation method for triphenylchloromethane, comprising the following steps: adding hydrochloric acid or a mixture of hydrochloric acid and Lewis acid to a mixture of triphenylmethanol and an organic solvent; stirring for reaction; removing the water layer after the completion of reaction to obtain an organic solution containing triphenylchloromethane. In the method, the conversion rate of triphenylmethanol is almost quantitative to be above 99%, and the content of triphenylchloromethane in the product obtained is above 99%. The operation is simple, and no waste gas is generated. Therefore, the method is environmentally friendly and suitable for industrialized production and can achieve better economic benefits.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 28, 2022
    Inventors: Lu Zhang, Guoliang Tu, Jianyue Xu, Heping Jin, Su Wang, Qi Hu, Sen Yang, Heng Liu