On the table in his house, located in the traditional
neighborhood of La Floresta, Quito, Ecuador, the researcher
Marcelo Acosta Estrada improvised a laboratory to demonstrate
how the technique he invented. "We took the gold quartz and was
crushed to a size even smaller. We put it in the mortar and pour
the juice from bananas. " While Acosta move content, makes the
banana juice come in contact with minerals. The researcher
explains that the oxides are reduced with hydrogen to pure
metals. In his essay gets that small gold particles rise to the
surface. Also stresses that other minerals can be recovered
using the same technique. This home test can be applied to
industrial scale with the necessary investment. The big
difference is that the extraction of gold with current machines
takes about 24 hours. The process created by this researcher
from Ecuador takes just 20 minutes. The technique of the
chemical engineer, a professor of the National Polytechnic
School, is in the process of international patenting. This