Separation of feldspar from quartz using EDTA as modifier

A study was conducted to test a new technique for separating quartz from feldspar using EDTA as modifier in acid medium. m is to replace the modifier now in use, namely HF, because of the growing awareness of environmental and health problems. search was carried out using a multiple approach including: zeta potential measurements and flotation tests with the EMDEE Microflot system. ison and correlation of the results of these experiments leads to the following conclusions: • s possible to separate quartz from feldspar at around pH 2 using EDTA as modifier. x02022; he tested collectors (cationic and cationic-anionic) the best results are obtained with a mixture having a ratio of 3 cationic to 1 anionic.