Finnish scientists from Helsinki University and Yuvaykul University have developed a new method to remove silver from waste using fatty acids in waste vegetable oil. The study was published scientifically broadcasting Journal of Chemical Engineering (CEJ).
For silver processing, modern technologies often require aggressive chemicals that damage ecology.
The recommended method is based on the combination of fatty acids (eg, oleic or linolevo) and diluted hydrogen peroxide. Such a mixture solves the silver effectively, then can be distinguished in pure form using light in a special reactor.
Development writers, “Our aim is to create cheap and stable methods for the processing of metals, especially from complex multiple component wastes,” he said.
Silver is widely used in electronic, solar panels and other high -tech industries, but less than 20% of world production comes from processed sources. At the same time, natural reserves are exhausted and the price of metal has grown six times in the last 25 years.
The new technology not only solves the problem of lack of resources, but also offers a safe alternative: fatty acids -non -thoxic, biologically fragmented and reused after silver removal.
The method, for example, opens opportunities for “urban production” of precious metals from keyboards with silver -coated or other electronic components.
Previously, scientists Created A sponge that obtains gold from electronic waste.
What are you thinking?
Source: Gazeta
Barbara Dickson is a seasoned writer for “Social Bites”. She keeps readers informed on the latest news and trends, providing in-depth coverage and analysis on a variety of topics.