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.:
Date of Patent:
Nov. 18, 2014
Filed:
Feb. 25, 2011
Timothy LA, Kardinya, AU;
John D. Kildea, Baldivis, AU;
Kevin L. O'brien, Saint Charles, IL (US);
Everett C. Phillips, Batavia, IL (US);
Kailas B. Sawant, Aurora, IL (US);
David H. Slinkman, Lombard, IL (US);
Frederick J. Swiecinski, Algonquin, IL (US);
Ji Cui, Aurora, IL (US);
Timothy La, Kardinya, AU;
John D. Kildea, Baldivis, AU;
Kevin L. O'Brien, Saint Charles, IL (US);
Everett C. Phillips, Batavia, IL (US);
Kailas B. Sawant, Aurora, IL (US);
David H. Slinkman, Lombard, IL (US);
Frederick J. Swiecinski, Algonquin, IL (US);
Ji Cui, Aurora, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.