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Now showing items 11-20 of 78
Study of alkylation reaction of n-(4-methylphenyl)- 2-phenylacetamide and n-(4-methoxyphenyl)-2-phenylacetamide with benzyl chloride under basic conditions / Ispitivanje reakcije alkilovanja n-(4-metilfenil)-2-fenilacetamida i n-(4-metoksifenil)-2-fenilacetamida benzilhloridom u baznoj sredini
(Institut bezbednosti, Beograd, 2004)
N-(4-Methylphenyl)-2-phenylacetamide and N-(4-methoxyphenyl)-2-phenylacetamide were alkylated with benzyl chloride in the presence of powdered KOH in various solvents as well as in the presence of phase-transfer catalysts, ...
The synthesis of nanosized calcium-hydroxyapatite particles by the catalytic decomposition of urea with urease / Sinteza nanostrukturnih prahova kalcijum-hidroksiapatita katalitičkom razgradnjom uree ureazom
(Institut bezbednosti, Beograd, 2004)
In this paper, the synthesis of nanosized calcium-hydroxyapatite particles by the catalytic decomposition of urea with urease is presented. As reagents for the Ca-hydroxyapatite synthesis, the various amounts of CaCl2, ...
Biodiesel I: Historical background, present and future production and standards - professional paper / Biodizel I. - istorijat, proizvodnja i standardi
(Association of Chemical Engineers of Serbia, 2004)
Biodiesel is defined as a fuel which may be used as pure biofuel or at high concentration in mineral oil derivatives, in accordance with specific quality standards for transport applications. The main raw material used for ...
Implementation of a combined differential-discrete cellular automata model for cell growth in gel beads
(Association of Chemical Engineers of Serbia, 2004)
Biodiesel II: A new concept of biodiesel production - transesterification with supercritical methanol / Biodizel II - novi koncept dobijanja biodizela - transesterifikacija u natkritičnim uslovima metanoia
(Association of Chemical Engineers of Serbia, 2004)
Biodiesel is defined as a fuel that might be used as a pure biofuel or at high concentration in mineral oil derivatives, in accordance with specific quality standards for transport applications. The main raw material used ...
Mass transfer from the wall of a column to the fluid in a fluidized bed of inert spherical particles / Prenos mase zid-fluid u partikulativno fluidizovanim slojevima
(Association of Chemical Engineers of Serbia, 2004)
Mass transfer in fluidized beds is an important operation for separation processes. Two effects can be achieved by using fluidized beds in mass transfer processes increasing interface area and relative movement between the ...
Leaching of sphalerite from Pb-Zn-Cu-Fe sulphide concentrate by sulphuric acid in the presence of sodium nitrate / Luženje sfalerita iz Pb-Zn-Cu-Fe sulfidnog koncentrata sumpornom kiselinom u prisustvu natrijum-nitrata
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd, 2004)
During floatation of polimetalic ores, in addition to selective concentrates there is a collective sulphide concentrate due to the presence of small mineral types and their complex inter-relations. The existing metallurgies ...
Possibilities of production of antimony(III) oxide in facilities of smelter 'Zajača' / Mogućnosti proizvodnje antimon-trioksida u topionici 'Zajača'
(Savez inženjera i tehničara Srbije, Beograd, 2004)
This paper presentes reserch of technological possibilites of production of antimony(III) oxide in facilities of smelter "Zajača" near Loznica. Metal antimony was producted in smelter "Zajača" for nearly hunderd years, and ...
Immobilized lipases as practical catalysts / Imobilisane lipaze kao katalizatori od praktičnog značaja
(Faculty of Technology, Novi Sad, 2004)
Attractive features of lipase systems include versatility, substrate selectivity, regioselectivity, enantioselectivity and catalysis at ambient temperatures and pressures. To fully exploit the technical and economical ...
Energy and economy savings in the process of methanol synthesis unsig Pinch technology / Energetsko i ekonomsko poboljšanje procesa sinteze metanola primenom Pinch tehnologije
(Serbian Chemical Society, Belgrade, 2004)
A heat exchanger network (HEN) for the process of methanol synthesis has been studied by pinch design analysis. Great economic and energy savings were realized by the pinch analysis in comparison to the existing plant. ...