Wakamatsu, T. published the artcileSelective flotation of quartz and feldspar using non-ionic surfactant, Computed Properties of 2016-56-0, the publication is Publications of the Australasian Institute of Mining and Metallurgy (2005), 803-805, database is CAplus.
In order to develop the HF-free flotation reagent system, the main objective of this investigation was to study the possibility of separation of quartz from feldspar using non-ionic surfactants as the collector. The non-ionic surfactants used were polyoxyethyl cetyl ether (PECE) and polyethylene glycol monocetyl ether (PGME). The flotation behavior of quartz and microcline with PECE and PGME was investigated. Each surfactant was a good selective collector for quartz with its recovery being influenced by pH and surfactant concentration Quartz is floated favorably by both types of polyoxyethylene non-ionic surfactant whereas microcline was not so much. The floatability of quartz increases as the oxyethylene length of surfactants increases. Zeta potential measurements in the system of PGME/mineral were also carried out. It was determined that in the absence of PGME the points of zero charge for quartz and microcline should be approx. at pH 2.5 and 1.8, resp. The addition of PGME to the system causes both minerals to become less neg. charged. Differences in the zeta potential value between quartz and microcline, in the presence of PGME, were detected. It can be suggested that the interaction of the oxyethylene group to the microcline surface should not be as strong as that to the quartz surface. In the mixed surfactant system of PGME and dodecylamine acetate (DAA), a small addition of DAA causes drastic enhancement of quartz flotation in the wide pH range of 1 ? 10. In the mixed surfactant system selective flotation of quartz from microcline would be anticipated at pH <3.0. The quartz floatability is thought to be as a result of the hydrophobic interaction between the adsorbed surfactant chains at the mineral-water interface.
Publications of the Australasian Institute of Mining and Metallurgy published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C8H10O2, Computed Properties of 2016-56-0.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia