Sentences with phrase «rare chemical element»

Not exact matches

The whole slew of rare earth elements are a challenge to separate because of their chemical similarity — and they are never found alone.

A Cologne working group involving Prof. Carsten Münker and Dr. Elis Hoffmann and their student Sebastian Viehmann (working with Prof. Michael Bau from the Jacobs University Bremen) have managed for the first time to determine the isotope composition of the rare trace elements Hafnium and Neodymium in 2.7 - billion - year - old seawater by using high purity chemical sediments from Temagami Banded Iron Formation (Canada) as an archive.

Most previous Antarctic ice core records have not included many of the elements and chemical species that we study, such as heavy metals and rare earth elements, that characterize the anomaly — so in many ways these other studies were blind to the Mt. Takahe event.»

The element rhodium is a powerful catalyst — a driver of chemical reactions — but is also one of the rarest and most expensive.

Researchers from the KU Leuven Department of Chemical Engineering have discovered a method to separate two rare earth elements — europium and yttrium — with UV light instead of with traditional solvents.

Inorganic chemicals, compounds of precious metals, rare earth metals, radioactive elements or isotopes

For example, according to Apple, an iPhone 6 contains.01 ounces worth of rare earth elements (17 chemical elements essential to today's technology) in components that include the handset's speakers and touchscreen display.

It begins with the mining of rare earth minerals, a collection of chemical elements manufactured mostly in China.

A third of the top worldwide chemical companies are clients, including specialty chemical manufacturers, petrochemical groups, chemical trading companies, fertilizer suppliers, plastics and rubber makers, producers of powder coatings, recyclers of petroleum refining residuals, performance materials manufacturers and rare earth element suppliers.