Труды КНЦ вып. 5(ХИМИЯ И МАТЕРИАЛОВЕДЕНИЕ) вып. 2/2021(12)

TRANSACTIONS CHEMISTRY AND MATERIALS of the Kola Science Centre series 5 CONTENTS Page Abdurakhmonov O. E., Chemical synthesis of nanostructured magnetic hardened alloy Alisultanov M. E., of the Nd-Fe-B system 11 Yurtov E. V. Abdurakhmonov O. E., Chemical synthesis of nanopowder Nd2Fe14BаSiO2 Vertaeva D. A., of the nucleus-shell type 14 Yurtov E. V. Avazbekova A. A., Studying the mineral composition of gold mining waste........... 17 Juraev Kh. B. Agafonov D. G., Behavior of niobium, manganese and phosphorus during reducing Sadykhov G. B., roasting of rare earth-rare metal ore of the Chuktukon deposit..... 21 Kop’yev D. Y., Anisonyan K. G. Atmadzhidi A. S., The complex processing of titanomagnetite concentrates of the Goncharov K. V. Gremyakha-vyrmes deposit with extraction of vanadium and titanium....... 24 Bozorov A. N., Hydrometallurgical processing of molybdenum-containing raw materials Safarov A. R. and waste of molybdenum production 26 Bocharova I. V., Study of lithium-conducting ceramics Li1.3Ab.3Ti1.7(PO4)3 Kunshina G. B. with the nasicon structure 30 Bykov P. A., Investigation of wear conditions of a composite material based Kalashnikov I. E., on an anti-friction alloy AO20-1 reinforced with Ti particles........ 36 Kobeleva L. I., KolmakovA. G., Mikheev R. S. Velyaev Yu. O., The study of phosphate ions sorption from silicon dioxide solutions Maiorov D. V. obtained by using acid decomposition of nepheline.............. 42 Velyaev Yu. O., Physico-chemical properties of silicon dioxides obtained by extraction Maiorov D. V. from sulfuric acid solutions from acid decomposition of nepheline.. 48 Velyaev Yu. O., Preparation of silicon and alumosilicic aerogels based on the Maiorov D. V., decomposition of nepheline with an alcoholic solution of sulfuric acid........... 54 Kometiani I. B. Vetrova D. A., Standard rate constants of charge transfer for the redox couple Kuznetsov S. A. Ti(IV)/Ti(III) in chloride-fluoride melts with the different cationic composition................................................................................................... 60 Vinogradov V. Yu., Using of mechanoactivation for preparation of cerium-containing solid Kalinkin A. M., solutions based on zircon 66 Kuznetsov V. Ya. Vorobev D. A., Calculation of nonlinear optical properties of lithium niobate crystals. 72 Sidorova O. V., Palatnikov M. N., Kadetova A. V. 7