The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9068291 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 30, 2015

Filed:

Nov. 13, 2013
Applicants:

Red Shield Acquisition, Llc, Old Town, ME (US);

University of Maine System Board of Trustees, Bangor, ME (US);

Inventors:

Darrell Waite, Bangor, ME (US);

Richard Arnold, Milford, ME (US);

James St. Pierre, Milford, ME (US);

Hemant P. Pendse, Orono, ME (US);

William H. Ceckler, Hancock, ME (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/00 (2006.01); C13K 13/00 (2006.01); C13K 1/02 (2006.01); D21C 11/10 (2006.01);
U.S. Cl.
CPC ...
D21C 11/0007 (2013.01); C13K 1/02 (2013.01); C13K 13/00 (2013.01); D21C 11/0042 (2013.01); D21C 11/10 (2013.01);
Abstract

A system and method for hardwood pulp liquid hydrolysate conditioning includes a first evaporator receives a hardwood mix extract and outputting a quantity of vapor and extract. A hydrolysis unit receives the extract, hydrolyzes and outputs to a lignin separation device, which separates and recovers a quantity of lignin. A neutralization device receives extract from the lignin separation device and a neutralizing agent, producing a mixture of solid precipitate and a fifth extract. The solid precipitate is removed from the fifth extract. A second evaporator removes a quantity of acid from the fifth extract in a vapor form. This vapor may be recycled to improve total acid recovery or discarded. A desalination device receives the diluted extract, separates out some of the acid and salt and outputs a desalinated solution.


Find Patent Forward Citations

Waite, Darrell. (2015). System and method for conditioning a hardwood pulp liquid hydrolysate (U.S. Patent No. 9068291). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9068291

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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