Претраживање
Приказ резултата 11-20 од 699
Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties
(Serbian Chemical Society, 2001)
A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO, M̄n = 1000 g/mol) was synthesized in a two stage process involving ...
A critical review of relationships for predicting the dynamic viscosity coefficient of liquid organic compounds at saturation conditions / Kritički prikaz modela za predskazivanje koeficijenta dinamičkog viskoziteta zasićene tečnosti organskih supstanci
(Association of Chemical Engineers of Serbia, 2001)
This paper presents some empirical relationships for predicting the saturated liquid dynamic viscosity coefficient of organic compounds. Eleven models were tested using 295 experimental points for 34 organic compounds. On ...
Recycled wool-based nonwoven material for sorption of acid dyes
(Niscair, 2005)
The possibility of using a nonwoven material based on recycled wool for sorption of acid dyes from wastewater has been studied. To,improve its sorption properties, the recycled wool-based nonwoven material was treated with ...
Mechanochemistry of titanium oxides
(Belgrade : Association of the Chemical Engineers of Serbia, 2009)
Mechanochemistry represents an alternative route in synthesis of nanomaterials. Mechanochemical routes are attractive because of their simplicity, flexibility, and ability to prepare materials by solid state reactions at ...
The raw base for jeans production / Sirovinska baza za proizvodnju džinsa
(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2007)
In this paper, short history ofjeans are given, and tertile fibers used forjeans production and their most important properties are revievved.
Removal of mineral oil and wastewater pollutants using hard coal
(Association of Chemical Engineers of Serbia, 2009)
This study investigates the use of hard coal as an adsorbent for removal of mineral oil from wastewater. In order to determine the efficiency of hard coal as an adsorbent of mineral oil, process parameters such as sorption ...
A microwave-assisted liquefaction as a pretreatment for the bioethanol production by the simultaneous saccharification and fermentation of corn meal
(Association of the Chemical Engineers of Serbia, 2008)
A microwave-assisted liquefaction as a pretreatment for the bioethanol production by the simultaneous saccharification and fermentation (SSF) of corn meal using Saccharomyces cerevisiae var. ellipsoideus yeast in a batch ...
The growth of ruby single crystals / Раст монокристала рубина
(Serbian Chemical Society, 2005)
Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation ωc = 20 rpm were calculated by equations of the ...
Mean heat transfer coefficients during the evaporation of 1,1,1,2-tetrafluoroethane (R-134a) in a plate heat exchanger
(Serbian Chemical Society, 2007)
In this study the transfer coefficient of evaporation heat of the refrigerant 1,1,1,2-tetrafluoroethane (R-134a) in a vertical plate heat exchanger was experimentally investigated. The results are presented as the dependancy ...
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions / Утицај концентрације раствора и степена полимеризације карбоксиметилцелулозе на садржај гаса у реактору са вибрационом мешалицом
(Serbian Chemical Society, 2005)
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethylcellulose (sodium salt, CMC) solutions were used as the liquid ...