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Structure and kinetics of internal oxidation in Ag-Sn alloys / Struktura i kinetika interne oksidacije Ag-Sn legura
(Savez inženjera metalurgije Srbije, Beograd, 2008)
Internal oxidation in Ag-Sn-In-Te and Ag-Sn-Cu-Bi alloys was tested. micro structures of casted and homogenized samples, as well as after internal oxidation were followed by optical microscopy. The structure of Ag-Sn-Cu-Bi ...
Semi-interpenetrating polymer networks of chitosan and poly(ethylene glycol) / Semi-interpenetrirajuće mreže hitozana i poli(etilen glikola)
(Association of Chemical Engineers of Serbia, 2008)
Chitosan is a natural polycationic polymer that possesses useful properties such as bioactivity, biocompatibility, non-toxicity and non-antigenicity. On the other hand, its mechanical properties are not good for some ...
Overhaul and reconstruction of an autoclave / Sanacija i rekonstrukcija autoklava
(Society for Structural Integrity and Life, Institute for Material Testing, 2008)
The project of overhaul and redesign of autoclaves, a substantial part of coal drying equipment is realized at the requirement of Kolubara Prerada-Vreoci. Autoclaves operate under pressure at elevated temperature. Frequent ...
The effects of zeolite and silica gel on synthesis of amylisobutyrate catalyzed by lipase from Candida rugosa / Uticaj zeolita i silika gela na sintezu amil-izobutirata katalizovanu lipazom iz Candida rugosa
(Association of Chemical Engineers of Serbia, 2008)
Lipase-catalyzed synthesis of esters has been widely investigated due to numerous advantages in comparison with the conventional chemical process catalyzed with concentrated acids since use of chemical catalysts leads to ...
Nanocomposite powders for new contact materials based on copper and alumina
(Association of the Chemical Engineers of Serbia, 2008)
This paper is a contribution to characterization of Cu-Al2O3 powders with nanostructure designed for the production of dispersion strengthened contact materials. New materials with predetermined properties can be successfully ...
100 years of Bor smelter factory, RTB Bor, Serbia / Sto godina Topionice bakra u Rudarsko-Topioničarskom Basenu Bor, Srbija
(Savez inženjera i tehničara Srbije, Beograd, 2008)
The break through moment in evolution of human community is discover of some metals. Developing mining and metallurgy in eastern Serbia was depended of developing The Bor mining and metallurgical complex (RTB Bor). The ...
Analysis of amphetamines illegally produced in Serbia / Analiza amfetamina ilegalno proizvedenog u Srbiji
(Serbian Chemical Society, Belgrade, 2008)
Forensic practice in the Republic of Serbia faced the illegal production of amphetamine for the first time in 2003. This paper presents the results of the chemical characterization of 32 batches of amphetamine samples from ...
The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity
(Association of the Chemical Engineers of Serbia, 2008)
A two-step optimized laboratory synthetic method of zinc dialkyldithiocarbamates is presented. In the course of the first phase, a sodium salt of dialkyldithiocarbamic acid has been synthesized from the dialkylamines, ...
In situ lead stabilization using natural and synthetic apatite
(Savez hemijskih inženjera, Beograd, 2008)
In this work, mineral apatite was investigated for the remediation of lead contamination. Two different apatite minerals were used: synthetic apatite, Ca10(PO4)6(OH)2 (hereafter denoted as HAP) and natural apatite from ...
Crystallization kinetics of K2O·TiO2· 3GeO2 glass studied by DTA
(International Institute for the Science of Sintering, 2008)
Crystallization kinetics of K2O·TiO2· 3GeO2 glass was investigated by differential thermal analysis (DTA). Experiments were performed on powder samples with a particle size < 0.037 mm. The glass samples were heated at ...