Patents by Inventor Yongfeng Bu

Yongfeng Bu 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: 20230399352
    Abstract: A production apparatus and a production method of sucrose-6-ester are provided. The production apparatus includes a tank, a rotary distillation device, and a condensation device, the tank includes a separation chamber and a reaction chamber; the condensation device is sheathed inside the rotary distillation device, and the rotary distillation device is slidably connected in the separation chamber; a turntable of the rotary distillation device is fixed on a top surface of a drum, and a first heating device is provided on an outer wall of the turntable; the condensation device includes a condenser pipe, a water receiving plate, and a condensate water box that are connected sequentially from top to bottom; the condensation device is sheathed inside the drum of the rotary distillation device in a non-contact manner, and the condenser pipe is arranged to penetrate through the turntable and contacts a top surface of the tank.
    Type: Application
    Filed: February 7, 2021
    Publication date: December 14, 2023
    Inventors: Zhengsong ZHANG, Zhenghua LI, Jingang ZHAO, Congyong ZHANG, Xuelian ZHENG, Yongfeng BU
  • Publication number: 20230374054
    Abstract: Disclosed is a method for purifying sucralose, sequentially including: adding sucralose to ultrapure water, heating the resulting mixture for dissolution to obtain a dissolved solution, filtering the dissolved solution to obtain a filtrate, and then extracting the filtrate with an extraction solvent to remove non-polar impurities; subjecting the extracted recrystallization solution to concentration by evaporation to obtain a concentrated recrystallization solution with a preset concentration, and leaving the concentrated recrystallization solution to stand at a preset temperature for a preset time to produce a sucralose crystal nucleus in the concentrated recrystallization solution; subjecting the concentrated recrystallization solution containing the sucralose crystal nucleus to programmed cooling to obtain a recrystallization solution with a large amount of a sucralose crystal; and centrifuging the recrystallization solution with a large amount of a sucralose crystal to obtain a solid, and subjecting the so
    Type: Application
    Filed: September 30, 2020
    Publication date: November 23, 2023
    Inventors: Zhengsong Zhang, Rui Zhou, Jingang Zhao, Xuelian Zheng, Yongfeng Bu, Yongle Chen
  • Publication number: 20230234980
    Abstract: Provided are a device and a method for producing a sucrose-6-ester. The device includes a shell, a film scraping apparatus, and a base, wherein the film scraping apparatus is arranged on the base, and the shell covers the film scraping apparatus and the base; the shell is provided with a reaction solution inlet and a condensated water outlet; the base is provided with a carboxylate feed pipe, a reaction product discharge pipe, and a reaction channel connected to the carboxylate feed pipe; the film scraping apparatus includes a temperature control unit, a rotary tube, and a plurality of scrapers arranged on an inner wall of the rotary tube, and an outer edge of each of the scrapers abuts against an outer wall of the temperature control unit; and the rotary tube is able to rotate around the temperature control unit.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 27, 2023
    Applicant: ANHUI JINHE INDUSTRIAL CO., LTD.
    Inventors: Jiaxin XIA, Zhengsong ZHANG, Jingang ZHAO, Zhenghua LI, Congyong ZHANG, Xuelian ZHENG, Yongfeng BU