Extraction of copper from the waste of the Karagayly concentrator under the action of an electric hydro-pulse discharge depending on the pH of the medium in the cell In the work, the waste of the Karagayly concentrator was processed at the experimental hydro pulse discharge (HPD) laboratory setup in order to transfer the copper contained in them (0.11-0.14 %) into the solution and then partially precipitate it in the process of pulsed electrolysis. Pulp from waste (waste + water 1:1) was poured into the cell, then an acidic medium was adjusted to the value pH = 1.0-3.0 using a mixture of reagents. Under the action of electro-hydro pulse the process of pulsed electrolysis occurs simultaneously. Then the lid was tightly closed and a hydro-pulse discharge (HPD) was performed for 5-20 minutes. Under the action of the discharge, all the metals contained in the pulp went into solution and simultaneously precipitated, except for copper ions, which remained in the solution and partially deposited on the cathode. As a result, after processing the pulp with HPD, 20 solutions with a precipitate were obtained. All solutions and precipitates were studied on a copper content by an atomic absorption spectrometer. The optimal conditions for the extraction of copper into solution, namely, the duration of discharge HPD for 20 minutes at pH = 1 and presence of silicate and phosphate ions, were established. All interfering ions of other metals remain in the sediment, since copper is to the right of other metals in the galvanic series.

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Thermodynamic systems analysis Cr-As-H 2 O based on E-pH diagramsAfter studying the problem of environmental pollution, it was found that the most dangerous contaminant is arsenic. Due to the fact that the properties arsenates little studied, the analysis of published data showed that a growing need for thermochemical data from each year for new manufacturing processes involving arsenic compounds. This article first introduced the E-pH diagram of the system Cr-As-H 2 O at standard conditions (25 °C and 1 atm. Total pressure), where the range of existence of arsenate chromium, considered the chemical and electrode reactions produce chromium arsenate compounds of chromium and arsenic. The outcome of the conclusion about the possibility of the use of chromium compounds to output arsenic from solution in the form of a soluble, stable chromium arsenate.

Chemical-technological analysis of slags from the «Altynshoky» complex A historical monument on the top of the Altynshoky hill, first described by Academician K.I. Satpayev in 1935, consists of the so-called «Timur's Stone» and the mound, in the embankment of which there is a melted rock, and whose purpose has not been clarified yet. The proposed work for the first time presents the results of a multidisciplinary study of rock samples from the Altynshoky mound, the wreckage of a thermo-technical structure, and debris of rocks exposed to high temperatures. Using laser atomic emission and X-ray fluorescence analysis, geological study of samples and high-temperature processing in laboratory conditions, the identity of their chemical and mineralogical composition is presented. It is shown that the rock composing the hill and the rock from which the structure is built are identical and metamorphosed basalt. The fragments of the red rock and the slag from the center of the structure according to the ratio of the main components, namely, Fe, Si, Al and others are identical to the composing rock and were obtained from it without adding any ores or fluxes. The possibility of obtaining samples of red color and black vitreous slag from the main rock of the hill was confirmed experimentally. The geological study did not reveal the presence of metals in meltable concentrations. As a result of the research it was established that the construction was not used for metallurgical processes and apparently intended for other purposes, possibly ritual.

The materials of research in the Zailiyskiy Alatau are presented for parasitosis monitoring of crossbred sheep in the Enbekshikazakhsky District of the Almaty Region, the Republic of Kazakhstan. Twenty two parasite species are parasitizing in crossbred sheep in the Zailiyskiy Alatau: 6 protozoa species (Eimeria faurei, Eimeria intricata, Eimeria ovina, Eimeria ovinoidalis, Eimeria parva and Sarcocystis ovicanis), 4 trematode species (Fasciola hepatica, Dicrocoelium lanceatum, Eurytrema pancreaticum and Hasstilesia ovis), 2 cestode species (Moniezia expansa and Moniezia benedeni) and 10 nematode species (Trichostrongylus axei, Ostertagiella circumcincta, Ostertagiella trifida, Ostertagiella trifurcata, Marshallagia marshalli, Haemonchus contortus, Nematodirus oiratianus, Nematodirus spathiger, Strongyloides papillosus and Trichocephalus skrjabini). The total infection of the crossbred sheep with Eimeria was 30%; Anoplocephalids, 30%; Haemonchus, 10%; Nematodirus, 20%; and Strongyloides, 20%. Eimeria monoinvasion occurs in 10%, and Anoplocephalid and Strongyloide monoinvasion, in 5% of cases. Mixed invasions of Eimeria + Anoplocephalids occur in 10% of sheep, Eimeria + Anoplocephalids + Strongyloides, Eimeria + Haemonhus + Nematodirus, Eimeria + Nematodirus + Strongyloides, Eimeria + Strongyloides, and Haemonhusa + Nematodirus, in 5% of sheep. Protozoa and helminths occur in sheep both as a monoinvasion and mixed invasions in the Zailiyskiy Alatau.