The Adaptation of New Research Techniques to Mineral Engineering Problems

The adsorption isotherms of dodecylamine on quartz at various constant alkaline pH values are given. Data are given on adsorption of H⁺ on quartz as a function of pH at 10^-1 M ionic strength and as a function of pH at different ionic strengths, Solubility tests were run on quartz at 60, M Borax solutions were used as solvents. The uptake of Cl^- by muscovite was briefly studied. The study of uptake of dodecylarumonium ion by muscovite was continued. A study of xanthate flotation of pyrite is presented. The experimental work of the Comminution Project was aimed at determining the fundamental properties which control the fracture of brittle materials.. Authors: Li, H. C. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)]; van Lier, J. A. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)]; Seele, G. D. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)]; Goldstick, T. K. [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)]; Sato, Shigeru [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)]. DOE Contract: AT(30-1)-956. Subjects: 36 MATERIALS SCIENCE; ACIDITY; ADSORPTION; ALKYL RADICALS; ALUMINUM SILICATES; AMINES; AMMONIUM COMPOUNDS; ANIONS; BORATES; BORAX; BRITTLENESS; CATIONS; CHLORINE; CONTROL; DODECYL RADICALS; FAILURES; FLOTATION; HYDROGEN; IMPURITIES; IRON SULFIDES; METALLURGY AND CERAMICS; MICA; MINERALS; MUSCOVITE; POTASSIUM SILICATES; PYRITE; QUARTZ; SODIUM CHLORIDES; SODIUM COMPOUNDS; SOLUBILITY; SOLUTIONS; SOLVENTS; TEMPERATURE; TESTING; WATER; XANTHATES