Application of Anthracene Fraction Resin Processing Waste for Talc Flotation
Abstract Generated abstract
This paper examines the use of an oil emulsion waste product from ultrasonic purification of crude anthracene as a flotation collector for talc from the Alguy deposit. Laboratory flotation tests were conducted in neutral tap water using a Mekhanobr flotation machine, and results were compared with flotation using tipol alone at the same reagent consumption of 500 g/t. The anthracene oil emulsion produced a higher concentrate yield and slightly higher MgO recovery than tipol, indicating that this processing waste can function effectively as a collector for naturally hydrophobic minerals such as talc.
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APPLICATION OF WASTES FROM PROCESSING RESINS OF THE ANTHRACENE FRACTION FOR TALC FLOTATION
S. A. Babenko, V. P. Bakhtina, L. V. Popova
(Presented by the scientific seminar of the Department of General Chemical Technology)
One of the methods for purifying crude anthracene from oils is its ultrasonic treatment, which was carried out by diploma students A. V. Kalinina and L. A. Kudryavtseva. To stabilize the oil emulsion, a surface-active substance—tipol (secondary sodium alkylsulfonate)—was added to the crude anthracene. After 10 min of ultrasonic treatment, an emulsion was separated that had the following composition: anthracene—0.073%, carbazole—0.060%, phenanthrene—0.30%, oils—0.32%, tipol—1.2%, water—98.047%.
An emulsion of this composition was used as a collector for the flotation of talc from the Alguy deposit. The flotation conditions were as follows: S:L = 1:4, neutral medium, tap water, temperature 18°C. The tests were carried out in a Mekhanobr laboratory flotation machine; chamber capacity 1 l. Impeller speed—1400 rpm, conditioning time 3 min, flotation time—5 min. The best results for extraction of talc into the froth product were obtained at an emulsion consumption of 500 g/t. For comparison, experiments on talc flotation with tipol alone were carried out in parallel; consumption—500 g/t.
Table 1
Results of talc flotation with an emulsion of oil from anthracene and with tipol
| Reagents | Product name | Yield, % | Content, SiO₂ | Content, MgO | Recovery, SiO₂ | Recovery, MgO |
|---|---|---|---|---|---|---|
| Emulsion of oil from anthracene | Concentrate | 94.64 | 64.48 | 30.00 | 92.7 | 98.9 |
| Emulsion of oil from anthracene | Tailings | 5.46 | 87.88 | 4.1 | 7.3 | 1.1 |
| Emulsion of oil from anthracene | Initial sample | 100.0 | 65.8 | 28.62 | 100.0 | 100.0 |
| Tipol | Concentrate | 89.9 | 64.26 | 30.64 | 87.0 | 98.2 |
| Tipol | Tailings | 10.1 | 85.60 | 4.95 | 13.0 | 1.8 |
| Tipol | Initial sample | 100.0 | 66.5 | 28.0 | 100.0 | 100.0 |
As is evident from Table 1, the results of talc flotation with the emulsion from anthracene are better than with tipol: the concentrate yield is respectively 94.64 and 89.9%, and the recovery of MgO into the concentrate is 98.9 and 98.2%.
Thus, the emulsion from the processing of crude anthracene can be successfully used as a collector for the flotation of naturally hydrophobic materials.