Chemical Industry and Chemical Engineering Quarterly
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Production of fine zinc borate in industrial scale
Chemical Industry and Chemical Engineering Quarterly - Tập 18 Số 4-1 - Trang 547-553 - 2012
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 size
distribution. Th...
Synthesis of tetraalkyl thiuram disulfides using different oxidants in recycling solvent mixture
Chemical Industry and Chemical Engineering Quarterly - Tập 18 Số 1 - Trang 73-81 - 2012
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 was performed
in a recyc...
Investigation of cultivated lavender (Lavandula officinalis L.) extraction and its extracts
Chemical Industry and Chemical Engineering Quarterly - Tập 20 Số 1 - Trang 71-86 - 2014
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
combination with mass spec...
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