TY  JOUR
TI  INVESTIGATION OF THE OPPORTUNITY OF EXPANSION OF THE BASE  OF MINERAL RESOURCES FOR OBTAINING OF ADSORBENTS ON THE BASIS  OF OPAL-CRISTOBALITE ROCKS
KW  The paper presents the results of the investigation of the opportunity of expansion of the base of mineral resources for obtaining of adsorbents on the basis of opal-cristobalite rocks. Samples of opal-cristobalite rocks of the Aristovskoye field of the Ulyanovsk region were investigated. It was found that the prepared samples of the diatomite of the Aristovskoye field of the 5–63 μm fraction are limited soluble in the alkali solution  (12,00–25,70 %). The opoka of the same fraction of the Aristovskoye field  is soluble more than the diatomite from the Aristovskoye field (41,70–43,00 %). It was found that the value of adsorption of methylene blue on opal-cristobalite rocks of the Aristovskoe field (30–45 %) is comparable to the value of methylene blue adsorption on samples of opal-cristobalite rocks of the Inzenskoye field of the Ulyanovsk region. It was shown that the value of methylene blue adsorption on the samples of rocks of Aristovskoe field depends on the content of silica
KW  alumina and on the summary content of oxides of alkali and alkaline-earth metals in them
KW  which is also characteristic for the samples of diatomite of the Inzenskoye field. It was found that the iron (III) oxide content in samples of rocks of Aristovskoe field is rather high (2,85 – 4,03 %)
KW  but can be reduced by using of different methods. Thus
KW  previously revealed regularities of the change in the value of methylene blue adsorption from the chemical composition of opal-cristobalite rock
KW  obtained for the diatomite of Inzenskoye field
KW  are common for opal-cristobalite rocks of other deposits.This allows us to expand the base of mineral resources for obtaining of adsorbents on the basis of opal-cristobalite rocks.
JO  Bulletin of Belgorod State Technological University named after. V. G. Shukhov
AU  Ubaskina, Y.A.
AU  Fetyukhina, E.G.
AU  Adaev, T.V.
PY  2018
IS  3
PB  Belgorod State Technological University named after V.G. Shukhov