Patents by Inventor Silu Wang

Silu 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).

  • Quaternary arylcarboxylate compositions for extracting C1 to C4 carboxylic acids from aqueous streams
    Patent number: 9611209
    Abstract: This invention relates to solvents for extracting C1 to C4 carboxylic acids from aqueous streams. More specifically, the extraction solvents include one or more salts composed of a phosphonium cation and an arylcarboxylate anion. The extraction solvents may further include one or more non-ionic liquid organic solvents as an enhancer. The extraction solvents are useful for extracting aqueous mixtures containing one or more lower carboxylic acids, such as monocarboxylic acids, alkoxycarboxylic acids, and halogen-containing carboxylic acids.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 4, 2017
    Assignee: Eastman Chemical Company
    Inventors: Jingyi Liu, Silu Wang, Christopher Hardacre, David William Rooney, Robert Thomas Hembre, Scott Donald Barnicki, Chester Wayne Sink