Patents by Inventor Xianrui Wang

Xianrui Wang 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).

  • Method for treating oil-containing aqueous mixtures with cation exchange resin
    Patent number: 9926211
    Abstract: A method for treating an oil-containing aqueous mixture comprising the step of passing the mixture (1) through a media (6) comprising a bead-form cation exchange resin combined with a cationic surfactant, wherein the resin includes a sulfonated crosslinked copolymer matrix having a rough surface characterized by having a frequency of at least 5 peaks and valleys per sample surface area (283 um×212 um), where the difference between the average height of the 5 highest peaks and the 5 lowest valleys is at least 6 ?m.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 27, 2018
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Gongyan Liu, Xianrui Wang, Zhaohui Yan, Liu Yang, Zheng Zhang, Jianbo Zhou
  • METHOD FOR TREATING OIL-CONTAINING AQUEOUS MIXTURES WITH CATION EXCHANGE RESIN
    Publication number: 20160185625
    Abstract: A method for treating an oil-containing aqueous mixture comprising the step of passing the mixture (1) through a media (6) comprising a low bead-form cation exchange resin combined with a cationic surfactant, wherein the resin includes a sulfonated crosslinked copolymer matrix having a rough surface characterized by having a frequency of at least 5 peaks and valleys per sample surface area (283 ?m×212 ?m), where the difference between the average height of the 5 highest peaks and the 5 lowest valleys is at least 6 ?m.
    Type: Application
    Filed: July 8, 2014
    Publication date: June 30, 2016
    Inventors: Gongyan Liu, Xianrui Wang, Zhaohui Yan, Liu Yang, Zheng Zhang, Jianbo Zhou
  • COKING WASTEWATER TREATMENT
    Publication number: 20150076061
    Abstract: A process for treating coking wastewater contains the steps of passing the coking wastewater in such an order through coagulation, particles removal, and ion-exchange resin.
    Type: Application
    Filed: November 30, 2011
    Publication date: March 19, 2015
    Applicants: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
    Inventors: Chad J. Cai, Jenny Z. Zhang, Zhaohui Yan, Xianrui Wang