Published 2007 | Version v1
Journal article Metadata-only

Regularities of radium coprecipitation with barium sulfate from salt solutions

Creators

  • 1. Nauchno-Proizvodstvennaya Ehkologicheskaya Firma EhKO-tekhnologiya, Berezniki (Russian Federation)
  • 2. Permskij Gosudarstvennyj Tekhnicheskij Univ., Bereznikovskij Filial, Berezniki (Russian Federation)

Description

Coprecipitation of radium with barium sulfate from highly concentrated NaCl solutions is studied, including the effects of the initial solution composition, alkaline reagent (CaO, NaOH), supporting electrolyte (NaCl) concentration, and pH. The process is promoted by high NaCl concentration in the initial solution, which is due to structural transformation and change in the sorption activity of the BaSO4 precipitate in salt solutions. The results obtained were applied to recovery of radium from process solutions during the development and introduction of improved procedure for disinfection and decontamination of waste yielded by chlorination of loparite concentrates

Abstract (Russian)

Изучено соосаждение радия с BaSO4 из растворов с высоким содержанием NaCl. Рассмотрено влияние состава исходных растворов, типа щелочного реагента (CaO, NaOH), концентрации электролита (NaCl) и величины рН на процесс. Процессу способствует повышение концентрации NaCl в исходном растворе, что объясняется изменением структуры и сорбционной активности осадка BaSO4 в солевых растворах. Полученные закономерности использованы для локализации радия из производственных растворов при разработке и внедрении усовершенствованной технологии обезвреживания и дезактивации отходов процесса хлорирования лопаритовых концентратов

Additional details

Additional titles

Original title (Russian)
Закономерности соосаждения радия с сулфатом бария из солевых растворов

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
49
Journal Issue
5
Journal Page Range
p. 473-476
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39092798
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AQUEOUS SOLUTIONS; BARIUM SULFATES; CHEMICAL COMPOSITION; CONCENTRATION RATIO; COPRECIPITATION; DECONTAMINATION; PH VALUE; RADIUM COMPOUNDS; SODIUM CHLORIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; CLEANING; DIMENSIONLESS NUMBERS; DISPERSIONS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; MIXTURES; OXYGEN COMPOUNDS; PRECIPITATION; SEPARATION PROCESSES; SODIUM COMPOUNDS; SOLUTIONS; SULFATES; SULFUR COMPOUNDS

Optional Information

Notes
18 refs., 3 figs.