Hisayoshi Umeda

Comparative Study of Metals Recovery Process from Effluent Water of a Metallurgical Refining Process

A. Shibayama, W. Tongamp, Kunihiko Takahashi, 2010 .

Recovery and Concentration of Precious Metals from Strong Acidic Wastewater

Kunihiko Takahashi, Atsushi Shibayama, Hisayoshi Umeda, 2011 .

Flotation and Process Design for Precious Metals Recovery from Powdery Waste Generated by Polishing Process of Dental Alloy

A. Shibayama, Kunihiko Takahashi, Kazutoshi Haga, 2011 .

Recovery of Trace Precious Metals in Strongly Acidic Wastewater

A. Shibayama, Kunihiko Takahashi, Y. Takasaki, 2010 .