PROCESS FOR DIAMONDS EXTRACTION FROM THEIR MIXTURES WITH CARBON CONSTITUENT

摘要

A method for diamond extraction from their mixtures with carbon constituent comprises the introduction into mixture as catalyst of chemical compound with further thermal treatment in the medium, containing oxygen. As catalyst at least one copper salt in liquid state is added into mixture in ratio: the quantity of cuprum 5-15 times less than the quantity of the mentioned mixture. After that ultrasound treatment of the obtained suspension is carried out for at least 20 minutes and drying, and thermal treatment is carried out at temperature 330-370 °С for 2-4 hours.