METHOD FOR PURIFYING ALUMINUM AND APPARATUS THEREFOR - DAIKI ALUMINIUM INDUSTRY CO., LTD.

Title:

METHOD FOR PURIFYING ALUMINUM AND APPARATUS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2011/096170

Kind Code:

A1

Abstract:

Disclosed is a method for purifying aluminum, which is capable of removing impurity components such as Zn and Mg in molten aluminum without requiring an agitation device and without extremely lowering the vacuum degree. The method for purifying aluminum is capable of minimizing the occurrence of a trouble caused by metal vapor. Also disclosed is a purification apparatus which is capable of carrying out the method. Specifically, elements having high vapor pressures are evaporated and removed from molten aluminum by heating the molten aluminum introduced into a furnace by arc discharge and maintaining the molten aluminum temperature at 700-1,000˚C and the average vacuum degree of the atmosphere in the furnace at 20-1,000 Pa.

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Inventors:

OSHIRO, Naoto (TECHNICAL CENTER, 1483-1, Aza Yamashinden, Kawasaki-cho, Kameyama-sh, Mie 11, 〒5190211, JP)
大城　直人 (〒11 三重県亀山市川崎町字山新田１４８３番地の１株式会社大紀アルミニウム工業所　テクニカルセンター内 Mie, 〒5190211, JP)
KAWAI, Kiyofumi (TECHNICAL CENTER, 1483-1, Aza Yamashinden, Kawasaki-cho, Kameyama-sh, Mie 11, 〒5190211, JP)
川井　清文 (〒11 三重県亀山市川崎町字山新田１４８３番地の１株式会社大紀アルミニウム工業所　テクニカルセンター内 Mie, 〒5190211, JP)

Application Number:

JP2011/000378

Publication Date:

August 11, 2011

Filing Date:

January 25, 2011

Export Citation:

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Assignee:

DAIKI ALUMINIUM INDUSTRY CO., LTD. (46 Minami-Kyuhoji 3-chome, Yao-shi Osaka, 76, 〒5810076, JP)
株式会社大紀アルミニウム工業所 (〒76 大阪府八尾市南久宝寺３丁目４６番地 Osaka, 〒5810076, JP)
OSHIRO, Naoto (TECHNICAL CENTER, 1483-1, Aza Yamashinden, Kawasaki-cho, Kameyama-sh, Mie 11, 〒5190211, JP)
大城　直人 (〒11 三重県亀山市川崎町字山新田１４８３番地の１株式会社大紀アルミニウム工業所　テクニカルセンター内 Mie, 〒5190211, JP)
KAWAI, Kiyofumi (TECHNICAL CENTER, 1483-1, Aza Yamashinden, Kawasaki-cho, Kameyama-sh, Mie 11, 〒5190211, JP)

International Classes:

C22B21/06; C22B9/02; C22B9/04; C22B9/20; F27B14/04; F27B14/06; F27B14/14; F27D11/08; F27D11/10

Attorney, Agent or Firm:

MORI, Yoshiaki et al. (Room 911, Osaka-Ekimae Dai-4 Bldg. 11-4, Umeda 1-chome, Kita-ku, Osaka-sh, Osaka 01, 〒5300001, JP)

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