光触媒作用による金属溶解法

Japanese Patent JP7016569

B2

The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.

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Bian
Sebrina Chen
Xu Yume
Ryorei
Kiyomasa
Mana
Liu Li
Lee Wako

JP2021524243A

February 07, 2022

October 10, 2019

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SHANGHAI NORMAL UNIVERSITY

C22B3/04; B01J23/06; B01J23/08; B01J23/18; B01J23/72; B01J23/745; B01J27/04; B01J27/047; B01J27/08; B01J27/18; B01J27/24; B01J31/22; B01J31/28; B01J31/38; B01J35/02

JP2015159064A
JP2014105346A
JP2003093895A

光エネルギーを利用した廃液からの触媒的貴金属分離・回収技術の開発,環境省 環境研究・技術 情報総合サイト ネットde研究成果報告会,日本,2016年,URL:https://www.env.go.jp/policy/kenkyu/special/houkoku/data_h27/3K133008.html

Choi Hailong
Takayuki Kawai

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