Title:
エコ資源スラグ有効利用方法
Document Type and Number:
Japanese Patent JP4576550
Kind Code:
B1
Abstract:
Slags, including the harmful-substance-containing slags, are not directly melted but are neutralized and processed into eco-resource materials, so that the slugs can be effectively utilized to purify and revive a large area of polluted water without any burden on the environment. Predetermined proportions of a non-recyclable harmful-substance-containing unused slag selected from by-product slags produced during the refining of a metal such as iron, copper, or aluminum from an ore, a porcelain clay for ceramics, and a mineral clay for ceramics, such as a quartz powder or an alumina powder, are kneaded to form a clay material with a suitable size. The clay material is burnt in a burning oven for ceramics at a predetermined temperature for a predetermined period of time so that a liquid glaze can sufficiently penetrate into the inner region of the clay material, thereby forming a biscuit clay material. A liquid glaze produced by kneading a powder made from a crushed special natural stone with a glaze for ceramics in a predetermined ratio followed by aging is applied, for example, to the biscuit clay material. As a result, a harmful-substance-containing unused slag is neutralized and used as an eco-resource filter medium.
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Inventors:
Tonegawa Jiro
Application Number:
JP2010011636A
Publication Date:
November 10, 2010
Filing Date:
January 22, 2010
Export Citation:
Assignee:
Kanto Trust Co., Ltd.
International Classes:
B09B3/00; B09C1/02; B09C1/08; C02F1/30; C02F11/10; C09K17/02; E01C5/22; E02B3/00; E02B3/14
Domestic Patent References:
| JP2005320174A |
Foreign References:
| WO2005108680A1 |
Attorney, Agent or Firm:
Shoji Kenji