Patents by Inventor Fuzu LIU

Fuzu LIU 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).

  • Publication number: 20210017059
    Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 21, 2021
    Inventors: Xiping YIN, Ye LI, Songyuan GU, Zhijian LIU, Tao WANG, Jin'ai GAO, Yuhua CHEN, Yan ZHOU, Ling YANG, Zhiwei YUAN, Hongliang YI, Tao AN, Fuzu LIU, Zhimin ZHANG, Shupeng XU, Hongqi GUO
  • Publication number: 20210002147
    Abstract: Apparatus and methods are related to treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In such a method, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. Ammonia, sodium sulfate, and sodium chloride from the waste water are recovered so that the resources in the waste water can be reused.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Xiping YIN, Ye LI, Songyuan GU, Zhijian LIU, Tao WANG, Jin'ai GAO, Yuhua CHEN, Yan ZHOU, Ling YANG, Zhiwei YUAN, Hongliang YI, Tao AN, Fuzu LIU, Zhimin ZHANG, Shupeng XU
  • Patent number: 10829401
    Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 10, 2020
    Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.
    Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu, Hongqi Guo
  • Patent number: 10815132
    Abstract: The present invention relates to the waste water treatment field, and discloses apparatus and method for treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In the method of the present invention, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. The method of the present invention can recover ammonia, sodium sulfate, and sodium chloride from the waste water respectively, so that the resources in the waste water can be reused as far as possible.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 27, 2020
    Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.
    Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu
  • Publication number: 20190062188
    Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Inventors: Xiping YIN, Ye LI, Songyuan GU, Zhijian LIU, Tao WANG, Jin'ai GAO, Yuhua CHEN, Yan ZHOU, Ling YANG, Zhiwei YUAN, Hongliang YI, Tao AN, Fuzu LIU, Zhimin ZHANG, Shupeng XU, Hongqi GUO
  • Publication number: 20180305221
    Abstract: The present invention relates to the waste water treatment field, and discloses apparatus and method for treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In the method of the present invention, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. The method of the present invention can recover ammonia, sodium sulfate, and sodium chloride from the waste water respectively, so that the resources in the waste water can be reused as far as possible.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 25, 2018
    Inventors: Xiping YIN, Ye LI, Songyuan GU, Zhijian LIU, Tao WANG, Jin'ai GAO, Yuhua CHEN, Yan ZHOU, Ling YANG, Zhiwei YUAN, Hongliang YI, Tao AN, Fuzu LIU, Zhimin ZHANG, Shupeng XU