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:
Dec. 11, 2012
Filed:
Mar. 21, 2008
Katsuhisa Honda, Matsuyama, JP;
Tomofumi Takahashi, Matsuyama, JP;
Katsuhisa Honda, Matsuyama, JP;
Tomofumi Takahashi, Matsuyama, JP;
Ehime University, Matsuyama-Shi, Ehime, JP;
Miura Co., Ltd., Matsuyama-Shi, Ehime, JP;
Abstract
Column which includes a first column with an upper layer of HSOsilica gel and a lower layer AgNOsilica gel and a second column packed with alumina, connected detachably to a lower end of the first column. An oily liquid containing polychlorinated biphenyls, is added to the upper layer and heated. An aliphatic hydrocarbon solvent is supplied to the upper layer, whereby polychlorinated biphenyls captured by the first column are dissolved in the aliphatic hydrocarbon and then flow to the second column. The polychlorinated biphenyls are captured by the alumina which is located near the inlet of the second column, which is then detached from the first column. A hydrophobic solvent is passed through the second column in a direction opposite to the direction in which the aliphatic hydrocarbon was passed, providing an extract containing the polychlorinated biphenyls dissolved in a small amount of the hydrophobic solvent.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile