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:
Mar. 24, 2015
Filed:
Jun. 07, 2012
Taro Fukaya, Higashikurume, JP;
Kenji Tsutsumi, Yokohama, JP;
Atsushi Yamazaki, Tokyo, JP;
Ichiro Yamanashi, Tokyo, JP;
Hirofumi Noguchi, Sakai, JP;
Yasutaka Kikuchi, Tokyo, JP;
Shuji Seki, Yokohama, JP;
Taro Fukaya, Higashikurume, JP;
Kenji Tsutsumi, Yokohama, JP;
Atsushi Yamazaki, Tokyo, JP;
Ichiro Yamanashi, Tokyo, JP;
Hirofumi Noguchi, Sakai, JP;
Yasutaka Kikuchi, Tokyo, JP;
Shuji Seki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a copper recovery apparatus includes a precipitation tank, a mixing tank, a filter-aid feeder, a solid-liquid separator includes a filter, a cleaning-water supply line, a cleaning-water discharge line, a separation tank, and a filter-aid return line. The precipitation tank is configured to receive copper ions-containing water to be treated and an alkali to prepare treated water containing a precipitate of copper compound. The solid-liquid separator is configured to allow the treated water to be passed through the filter on which the precoat layer is deposited to separate the precipitate retained on the precoat layer from a filtrate.