SVIBOR - Papers quoted in CC - project code: 1-07-071
MINISTRY OF SCIENCE AND TECHNOLOGY
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SVIBOR - Collecting Data on Projects in Croatia
Papers quoted in Current Contents on project 1-07-071
Quoted papers: 9
Other papers: 122
Total: 131
Title: A new intermetallic phase in the Pd-Pb-As system
- Authors:
- Matković, Prošper (74890)
- Matković, Tanja (73036)
Journal: Journal of Alloys and Compounds
ISSN: 0925-8388
Volume: 202
Year: 1993
Pages: from 107 to 112
Number of references: 12
Language: engleski
Summary: A new ternary compound was identified in the Pd-Pb-As
system. ThePd3Pb2As phase crystallizes with an orthorhombic structure in
thespace group Cmc21, a=1.1857(2)nm, b=0.6861(1)nm, c=0.5808(1)nm,Z=4,
although the crystals show quasi-hexagonal symetry. Thisstructure shows a
complex similarity to the NiAs type ofstructure. The palladium atoms are
octahedrally coordinated byfour lead and two arsebic atoms; the lead and
arsenic atoms are(six) coordinated by palladium atoms in the form of a
distortedtrigonal prism. The trigonal prisms are connected by sharingedges
to form a framework. The Pd3Pb2As structure was determinedfrom
single-crystal X-ray diffraction data and refined byfull-matrix
least-squares methods to R=0.073 for 309 reflections.
Keywords: structure,intermetallic,phase,system,ternary
Title: Extraction of gold(III) with diisopropyl ether (IPE) -
iso-pentyl alcohol (iPA) mixture
- Authors:
- Maljković, Dubravka (27761)
- Maljković,, Darko (27750)
- Paulin, Alojzija (83015)
Journal: Solvent Extraction and Ion Exchange
Number: 3
ISSN: 0736-0299
Volume: 10
Year: 1992
Pages: from 477 to 489
Number of references: 5
Language: engleski
Summary: The extraction of gold(III) by pure IPE and a mixture of
IPE-iPafrom aqueous solutions of hydrochloric acid was investigated.Firstly
the basic system HCl-H2O-IPE-iPA was examined andidentified as a new system
in which the third liquid phaseappears under certain conditions. In the
system HCl-H2O-AuCl3-IPE-iPa the influence of initial solvent composition
on phase volumes and on the distribution ratio of gold(III) was examinedat
two levels of initial acid concentration. It was found thatgold(III) was
efficiently extracted from 5 mol.dm-3 solutions ofhydrochloric acid. With
alcohol contents between 20 and 50 % vol distribution ratios over 1000 and
synergistic enhancement over750 were obtained.
Keywords: solvent extraction, gold(III), synergistic enhancement, mixed solvents, diisopropyl ether, iso-pentyl alcohol
Title: Ion chromatographic analysis of anion from slag elution
- Authors:
- Cerjan-Stefanović, Štefica (6631)
- Rastovčan, Alenka (165876)
Journal: Croatica Chemica Acta
Number: 3
ISSN: 0011-1643
Volume: 66
Year: 1993
Pages: from 1 to 9
Number of references: 23
Language: engleski
Summary: Anions from blast furnace slag significantly influence
theenvironment, human health and the stability of the builtstructure in
civil engineering. The anions were determined bymeans of ion
chromatographic analysis modified from differentrelations of anions in the
eluents. The fluoride saturationfactors of the system are experimentally
determined andcalculated with the help of distribution coefficient.
Keywords: blast furnace slag, ion chromatographic analysis
Title: The Effect of Temperature on the Formation of the Third
Liquid Phase in the System Hydrochloric Acid - Water - Diisopropyl Ether -
iso-Pentyl Alcohol
- Authors:
- Maljković, Dubravka (27761)
- Paulin, Alojzija (83015)
- Maljković,, Darko (27750)
Journal: Solvent Extraction and Ion Exchange
Number: 1
ISSN: 0736-0299
Volume: 12
Year: 1994
Pages: from 133 to 144
Number of references: 4
Language: engleski
Summary: Extraction systems containing diisopropyl ether (IPE) and
high initial hydrochloric acid concentration (higher than 7.1 mol/L) are
very sensitive to temperature changes. Small changes (a few degrees
centigrade) in working temperature may cause changes not only of the phase
volume but also of the number of phases. Results of investigation of the
temperature effect over the interval of 15 to 40 C on the volume and number
of equilibrated phases in the system hydrochloric acid - water - IPE -
iso-pentyl alcohol as well on the distribution of hydrochloric acid are
given. The observed effect of temperature is compared to that in systems
containing n-pentyl or n-hexyl alcohol as a component of mixed solvent.
Keywords: effect of temperature, third phase, acid extraction, mixed solvent, diisoprpyl ether, iso-pentyl alcohol
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