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Приказ резултата 31-40 од 78
Expressing the reliability of the process technologies components / Izražavanje pouzdanosti opreme u procesnim tehnologijama
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Beograd, 2004)
Every process defined within a specific technology necessitates the exploitation of equipment with a large variety in structures. Procedures in the technology define the purpose of the component, and in-service operations ...
Kinetics of palm oil hydrolysis by lipase immobilized in a hollow fiber membrane reactor
(Association of Chemical Engineers of Serbia, 2004)
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 ...
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 ...
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, ...
Synthesis and characterization of biodegradable aliphatic copolyesters with hydrophilic soft segments / Sinteza i karaterizacija biodegradabalnih alifatičnih kopoliestara modifikovanih mekim hidrofilnim segmentima
(Serbian Chemical Society, Belgrade, 2004)
segmented poly(ester-ether)s based on poly(butylene succinate) and two different types of polyethers were investigated. The poly(ester-ether)s were synthesized by transesterification reaction of dimethyl succinate ...
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 ...
Alkylation of N-substituted-2-phenylacetamides / Alkilovanje n-supstituisanih 2-fenilacetamida
(Serbian Chemical Society, Belgrade, 2004)
Various N-substituted phenylacetamides were alkylated using different alkylating agents under neutral and basic conditions. Reactions were performed at different reaction temperatures and in various solvents. Also, a number ...
Temperature dependence of the Kovats retention indices for alkyl 1, 3-diketones on a DB-5 capillary column / Temperaturna zavisnost kovačevih retencionih indeksa 1,3-diketonan a DB-5 kapilarnoj koloni
(Serbian Chemical Society, Belgrade, 2004)
A series of alkyl 1,3-diketones were used to study the temperature dependence of the Kovats retention indices in the temperature range 130–190 ºC (403–463 K). The temperature dependence is described by the empirical equation ...
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, ...