Japanese universities to develop new technology uses salmon DNA extraction of rare earth

According to "Japanese Economic News" website reported on August 21, Hiroshima University, Japan Aisin Seiki and affiliated research and development company Aisin COSMOS Institute jointly developed the use of bio-tech products, parts DNA to recover rare earths contained in waste technologies. This technique uses DNA of salmon or trout adsorption earth, and poured into an acidic aqueous solution was separated and recovered.

It is reported that up to 90% recyclable than purity neodymium and dysprosium. Study group hoped to replace the traditional method of efficient recycling methods, and put into practical application as soon as possible. High-tech products containing rare earths waste components, but such rare earth mixed with neodymium and dysprosium, recycling needs to be separated neodymium and dysprosium and other ingredients.

The study group found in the study, DNA contained in the rare earth phosphate adsorption properties. Experiment, the group is filled inside the plastic tube with DNA cellulose, and then injected into a solution mixed with a variety of rare earth, and then into the low concentration of hydrochloric acid, neodymium, dysprosium and cerium, etc. are successfully separated and recovered.


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