Conference Presentations by Josiah Stephen
Journal Institute of Earth Sciences, Southern Federal University, Russia, 2015
The Kizil-Dere pyrite deposit explored in detail in the 1980s in the Khnov,Borchinsky region of m... more The Kizil-Dere pyrite deposit explored in detail in the 1980s in the Khnov,Borchinsky region of mountainous Dagestan, is the largest deposit of copper-zinc ores not only in the North Caucasus, but also in Europe. The relevance of the research is due, first of all to the adoption at the government level of a decision to build a copper mining and processing plant on the basis of its industrial reserves, using the latest foam flotation technologies for deep processing of polymetallic ores.
The Kizil-Dere deposit is confined to the Southern wing of the Main Caucasian (Akhtychay) fault, crossing the Khnov-Borchinsky ore district in the sub-latitudinal direction. In structural-tectonic terms, this area is part of the Shakhnabad-Mazincky anticlinorium, the core part of which is composed of rocks of the Lower-Middle- Jurassic flyschoid sequence. The main pyrite deposits are Pravoberezhnaya(Right river embarkment) and Levoberezhnaya (Left river embarkment), localized in terrigenous deposits of the Upper Aalenian, with a thickness of more than 1100 m.
Tin-Cobalt-Arsenide Mineralization in pyrites ore deposits Kizil-Dere (Mountanous Dagestan) in pyrite ore Kizil-Dere locality, Cobalt is a typomorphic impurity with 100% frequency of occurrence in exploration samples, which determines the need for it mineralogical and technological assessment as a potenally industrial critical semi-component.
Laboratory and technological testing of 5 representative samples of pyrites ores from the Kizil-Dere deposit was carried out by employees of the Southern Federal University and the Central Chemical Laboratory “Sevkavgeologia” (Essentuki) using the VIMS method on small-sized enrichment flotation machines FM-2m. In the experiments, the traditional scheme of foam-flotation separation of ore and non-metallic minerals was used, including the sequential execution of the following technological operations:
1 – Addition or initial sample to 0.5 mm; 2 – excision of sample in a shear mill up 2 00 mesh (50 grams of ore + 100 ml of water) – 28 min; 3 – Pulp aeration at 4000 rpm.- 15 minutes; 4 – adding <<foaming agent>> (butyl xanthate – 3 ml) and <<collector>> (terpinol T-66 – 1 ml); 5 – agitation – 2 minutes; 6 – direct flotation at 4000 rpm.
The concentrations of Cu, As, Sn, Co, and Ni were determined in the resulting enrichments products by emission spectral analysis.
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Conference Presentations by Josiah Stephen
The Kizil-Dere deposit is confined to the Southern wing of the Main Caucasian (Akhtychay) fault, crossing the Khnov-Borchinsky ore district in the sub-latitudinal direction. In structural-tectonic terms, this area is part of the Shakhnabad-Mazincky anticlinorium, the core part of which is composed of rocks of the Lower-Middle- Jurassic flyschoid sequence. The main pyrite deposits are Pravoberezhnaya(Right river embarkment) and Levoberezhnaya (Left river embarkment), localized in terrigenous deposits of the Upper Aalenian, with a thickness of more than 1100 m.
Tin-Cobalt-Arsenide Mineralization in pyrites ore deposits Kizil-Dere (Mountanous Dagestan) in pyrite ore Kizil-Dere locality, Cobalt is a typomorphic impurity with 100% frequency of occurrence in exploration samples, which determines the need for it mineralogical and technological assessment as a potenally industrial critical semi-component.
Laboratory and technological testing of 5 representative samples of pyrites ores from the Kizil-Dere deposit was carried out by employees of the Southern Federal University and the Central Chemical Laboratory “Sevkavgeologia” (Essentuki) using the VIMS method on small-sized enrichment flotation machines FM-2m. In the experiments, the traditional scheme of foam-flotation separation of ore and non-metallic minerals was used, including the sequential execution of the following technological operations:
1 – Addition or initial sample to 0.5 mm; 2 – excision of sample in a shear mill up 2 00 mesh (50 grams of ore + 100 ml of water) – 28 min; 3 – Pulp aeration at 4000 rpm.- 15 minutes; 4 – adding <<foaming agent>> (butyl xanthate – 3 ml) and <<collector>> (terpinol T-66 – 1 ml); 5 – agitation – 2 minutes; 6 – direct flotation at 4000 rpm.
The concentrations of Cu, As, Sn, Co, and Ni were determined in the resulting enrichments products by emission spectral analysis.