000 03696nla2a2200445 4500
001 652836
005 20231030041157.0
035 _a(RuTPU)RU\TPU\network\18175
035 _aRU\TPU\network\18170
090 _a652836
100 _a20170127a2016 k y0engy50 ba
101 0 _aeng
105 _ay z 100zy
135 _adrgn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aThe study of the process of alkaline precipitation purification of solutions from silicon macroscales in the ammonium-fluoride processing of beryllium-containing materials
_fA. N. Dyachenko [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 7 tit.]
330 _aThe ammonium-fluoride method of beryllium materials processing is examined. An analysis of the existing sulfuric-acid and fluoride processing scheme of beryllium-containing concentrates processing is described; advantages of the proposed ammonium-fluoride scheme and possible problems that may occur when testing a new technique are discussed. Studies on determining the effect of silicon macroscales on the behavior of beryllium in fluoride solutions at an increased pH, as well as on establishing the distribution of beryllium and silicon by phases in laboratory testing of the technology on model mixtures, are described. As a result of the studies, it is found that precipitation purification of solutions from silicon with a solution of ammonia is possible at a temperature of 20-25 °C. The paper presents data on the effect of an excessive concentration of ion-fluoride in a solution on the pH level of silicon precipitation; and on the hydrolysis degree of beryllium and silicon during the precipitation.
461 0 _0(RuTPU)RU\TPU\network\4526
_tMATEC Web of Conferences
463 0 _0(RuTPU)RU\TPU\network\17872
_tVol. 85 : Chemistry and Chemical Technology in XXI Century (CCT 2016)
_oConference, May 17-20, 2016, Tomsk, Russia
_o[proceedings]
_fNational Research Tomsk Polytechnic University (TPU) ; eds. A. N. Pestryakov ; E. I. Korotkova ; A. Vorobiev
_v[01009, 6 p.]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aочистка
610 1 _aосаждение
610 1 _aрастворы
610 1 _aкремний
610 1 _aбериллий
701 1 _aDyachenko
_bA. N.
_cChemical Engineer
_cProfessor of Tomsk Polytechnic University, Doctor of technical sciences
_f1977-
_gAlexander Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\32666
701 1 _aKraydenko
_bR. I.
_cChemical Engineer
_cAssociate Professor of Tomsk Polytechnic University, Senior Researcher, Candidate of chemical sciences
_f1983-
_gRoman Ivanovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31223
701 1 _aLesnikova
_bM.
_gMargarita
701 1 _aMalyutin
_bL. N.
_cChemical Engineer
_cTechnician-designer of Tomsk Polytechnic University
_f1990-
_gLev Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\32652
701 1 _aPetlin
_bI. V.
_cChemical Engineer
_cAssistant of Tomsk Polytechnic University
_f1987-
_gIlya Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31227
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра химической технологии редких, рассеянных и радиоактивных элементов (№ 43) (ХТРЭ)
_h56
_2stltpush
_3(RuTPU)RU\TPU\col\18733
801 2 _aRU
_b63413507
_c20170203
_gRCR
856 4 _uhttp://dx.doi.org/10.1051/matecconf/20168501009
856 4 _uhttp://earchive.tpu.ru/handle/11683/36596
942 _cCF