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:
Feb. 05, 2013
Filed:
Sep. 16, 2010
Koji Yamada, Odate, JP;
Masahiko Ogino, Kosaka-machi, JP;
Nobuyasu Ezawa, Ageo, JP;
Hiroshi Inoue, Tokyo, JP;
Koji Yamada, Odate, JP;
Masahiko Ogino, Kosaka-machi, JP;
Nobuyasu Ezawa, Ageo, JP;
Hiroshi Inoue, Tokyo, JP;
Dowa Metals & Mining Co., Ltd., Tokyo, JP;
Tanaka Kikinzoku Kogyo K.K., Tokyo, JP;
Kosaka Smelting & Refining Co., Ltd., Tokyo, JP;
Nippon PGM Co., Ltd., Tokyo, JP;
Abstract
An apparatus for recovering platinum group elements comprises a furnace body having an interior space substantially shot off from external air, a material charging port and an exhaust port provided in an upper half of the furnace body, at least two fluid discharge ports provided in a lower half of the furnace body at different height levels. a material charging chute connected to the material charging port. an exhaust unit connected to the exhaust port; and electrodes for passing electric current through and heating material charged into the furnace. The material charging chute is equipped with a vertical two stage shutter so as to maintain airtightness when material is charged into the interior space of the furnace.