Gg. Levkovskaya et al., SYNTHESIS OF HETERYLTHIOALKANOIC ACIDS AND THEIR USE FOR CONCENTRATION OF TUNGSTEN-CONTAINING ORES, Russian journal of applied chemistry, 69(12), 1996, pp. 1849-1852
Methods for preparing a series of heterylthioalkanoic acids inclulding
alpha-(indol-3-ylthio)propionic, alpha-(indol-3-ylthio)butyric, and p
ur-6-ylthioacetic acids were developed, and flotation properties of th
ese compounds in concentration of tungsten-containing ores are studied
.