At different concentrations of hydrochloric, sulfuric, and phosphoric acids, the conductivity of the following electrochemical cell was measured: anode-acid solution-in air bridge-acid solution-cath ode. Cellulose fabric, the fibers of which are encapsulated in polyvinyl chloride, the surface of which is chem ically modified with porous layers of aggregates formed by acid molecules and salt groups of ethanol and ace tate cyclams, served as the bridge. The range where the logarithmic conductivity is proportional to the acid concentration is found. In this range, the molar contents of acids and water in the layers are estimated, the presence of aggregates composed of acid hydrates and cyclam salt groups is determined, the structure of layer is studied, and the similarity between the H + conductivity of the layers on fabric and the conductivity of mem branes based on polymers involving the skeleton ammonia salt groups is followed. For the aggregate layers, the specific surface; the limiting volume of pores; and the adsorption capacities for water, alcohol, benzene, and hexane vapors are measured. The formation of aggregates is shown to produce an insubstantial effect on the adsorption characteristics of the surface. During migration of H + ions in the fabric and on its surface, the following process was carried out in the electrochemical cell: adsorption of NH 3 , formation of ions, and transfer of ions to the catholyte. The migration velocity of H + ions is shown to correspond to the mea sured current in the circuit, and ions formed are found to be accumulated in the catholyte.

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Abstract:Determination of basic quality parameters of sylvinite ores quali es them as economic mineral material only, but does not account for the properties necessary to be considered to classify their dressability. A saturation exploration of the Nezhin mining site involved for the rst time a forecast and technological assessment of sylvinite ores in three minable potash horizons, which was made along with estimates of geological elds and was based on a comprehensive study of the mineralogical and technological features of ores in the rock massif and crushed samples.Key word: potash deposits, sylvine ore dreassability, Nezhin mine, Belarus Tre : Okre lenie podstawowych parametrów jako ciowych z ó sylwinitu umo liwia ustalenie ich u yteczno ci ekonomicznej, lecz nie pozwala oceni w asno ci niezb dnych do oceny mo liwo ci wzbogacenia rudy. Badania geologiczne prowadzone w kopalni Nezhin umo liwi y po raz pierwszy prognozowanie i techniczne oszacowanie mineralizacji sylwinitowej w trzech eksploatowanych horyzontach potasono nych dzi ki zastosowaniu kompleksowej analizy cech mineralogicznych i technologicznych mineralizacji w litych i pokruszonych próbkach ze z o a. Przemys owe z o a potasowe kopalni Nezhin zawieraj kopalin o wysokiej zawarto ci sylwinu, ich g ówne cia o rudne zakwali kowano jako obiekt o redniej mo liwo ci wzbogacenia. Jako sylwinitowe serie eksploatacyjne wyodr bnia si warstwy kopaliny reprezentuj ce jeden typ technologiczny kopaliny. Mineralizacja potasowa wykazuje nieznaczne ró nice w eksploatowanych warstwach II poziomu, jest ob ta w warstwach sylwinitowych nr 2, 3 i 4 III poziomu oraz w warstwach I poziomu potasono nego. Udzia we frakcji rudy powy ej 0.5 mm si ga ponad 70%. W a ciwo ci technologiczne sylwinitowej rudy z g ównych poziomów eksploatacyjnych kopalni Nezhin wskazuj , e instalacja wzbogacaj ca rud do wymaganego poziomu przemys owego mo e by u yteczna dla rudy pokruszonej do frakcji 3.15 mm. S owa kluczowe: z o a soli potasowej, wzbogacanie rudy sylwinowej, kopalnia Nezhin,

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