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:
Apr. 27, 2010
Filed:
Dec. 11, 2006
Kazuyoshi Matsuo, Ichihara, JP;
Kazuo Abe, Tokyo, JP;
Takao Suzuki, Tokyo, JP;
Shinichiro Saito, Kumagaya, JP;
Kazuyoshi Matsuo, Ichihara, JP;
Kazuo Abe, Tokyo, JP;
Takao Suzuki, Tokyo, JP;
Shinichiro Saito, Kumagaya, JP;
Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, JP;
Taiheiyo Cement Corporation, Tokyo, JP;
Abstract
Disclosed is a method for removal of an unburned carbon contained in a fly ash material. The method comprises the steps of adding water to the fly ash to prepare a fly ash slurry; shearing the fly ash slurry using an agitating blade that can rotate at a high speed to generate an active energy on the surface of an unburned carbon by the shearing force, thereby imparting lipophilicity to the unburned carbon; and adding a collecting agent and a foaming agent to the slurry containing the lipophylized unburned carbon to cause the attachment of the collecting agent to the lipophylized unburned carbon, and at the same time, causing the attachment of the unburned carbon having the collecting agent attached thereto an air bubble to separate the unburned carbon by flotation.