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. 19, 2013
Filed:
Feb. 06, 2012
Bruce A. Keiser, Plainfield, IL (US);
Jitendra T. Shah, Naperville, IL (US);
John V. Meier, Chicago, IL (US);
Paul J. Zinn, Montgomery, IL (US);
Jianwei Yuan, Aurora, IL (US);
Raul Espinosa, Austin, TX (US);
Rebecca L. Stiles, Naperville, IL (US);
Richard Mimna, Aurora, IL (US);
Wayne M. Carlson, Batavia, IL (US);
Bruce A. Keiser, Plainfield, IL (US);
Jitendra T. Shah, Naperville, IL (US);
John V. Meier, Chicago, IL (US);
Paul J. Zinn, Montgomery, IL (US);
Jianwei Yuan, Aurora, IL (US);
Raul Espinosa, Austin, TX (US);
Rebecca L. Stiles, Naperville, IL (US);
Richard Mimna, Aurora, IL (US);
Wayne M. Carlson, Batavia, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.