Borogypsum: mineral composition, processing technology

We have chosen borogypsum for our study, which contains gypsum and silicon dioxide used in various industries. Present methods of borogypsum processing were considered. A new flotation reagent was proposed to separate the silicon concentrate from boric acid production waste. With the help of methods of mathematical planning, a multifactor experiment was carried out to reveal the optimal mode of flotation. We chose the following factors: temperature, pH, concentration of the main flotation reagent, agitation time, and also the time of flotation. The results of an experimental study of the raw material and obtained samples were presented with the help of modern physicochemical methods (spectrophotometry, IR spectroscopy, scanning electron microscopy, X-ray phase analysis), which allowed studying the chemical and mineral compositions and the structure of the samples. The new flotation concentration technology from boric acid wastes was developed.