Production of fine zinc borate in industrial scaleChemical Industry and Chemical Engineering Quarterly - Tập 18 Số 4-1 - Trang 547-553 - 2012
Gaye Ö. Çakal
In this study, zinc borate production in an industrial scale batch reactor
was carried out at the optimum process conditions determined in the previous
studies performed at the laboratory and pilot scale reactors. The production
was done via the heterogeneous reaction of boric acid and zinc oxide. The
samples were characterized by chemical analysis, XRD, TGA, SEM and particle
...... hiện toàn bộ
Synthesis of tetraalkyl thiuram disulfides using different oxidants in recycling solvent mixtureChemical Industry and Chemical Engineering Quarterly - Tập 18 Số 1 - Trang 73-81 - 2012
Milutin Milosavljević, Aleksandar Marinković, Jelena Marković, Danijela Brkovic, Milan Milosavljević
A new optimized laboratory synthesis of tetraalkyl thiuram disulfides,
starting from dialkyl amines and carbon disulfide in presence of three
oxidants (hydrogen peroxide, potassium peroxodisulfate and sodium
hypochlorite) and appropriate reaction medium: two mixtures of isopropyl
alcohol - water used in two consecutive syntheses, was presented in this
work. First synthesis w...... hiện toàn bộ
Investigation of cultivated lavender (Lavandula officinalis L.) extraction and its extractsChemical Industry and Chemical Engineering Quarterly - Tập 20 Số 1 - Trang 71-86 - 2014
Vesna Nadjalin, Žika Lepojević, Mihailo Ristić, Jelena Vladić, Branislava Nikolovski, Dušan Adamović
In this study essential oil content was determined in lavender flowers and
leaves by hydrodistillation. Physical and chemical characteristics of the
isolated oils were determined. By using CO2 in supercritical state the
extraction of lavender flowers was performed with a selected solvent flow
under isothermal and isobaric conditions. By the usage of gas chromatography
in com...... hiện toàn bộ