Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Vlada Veljkovic"'
Autor:
Marija Miladinovic, Stefan Pavlovic, Ivana Bankovic-Ilic, Milan Kostic, Olivera Stamenkovic, Vlada Veljkovic
Publikováno v:
Chemical Industry. 77:39-52
Possibilities of using waste plum stones in biodiesel production were investigated. The plum kernels were used as a source to obtain oil by the Soxhlet extraction method, while the whole plum stones, the plum stone shells that remained after the cras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e4c48181c85a88fce9cdec921504ab3
https://doi.org/10.2298/hemind221113009m
https://doi.org/10.2298/hemind221113009m
Autor:
Zoran Todorovic, Biljana Djordevic, Dragan Troter, Ljiljana Veselinovic, Miodrag Zdujic, Vlada Veljkovic
Publikováno v:
Chemical Industry. 77:53-67
Deep eutectic solvents (DESs) are called 'designer solvents' due to various structural variations and the benefit of tailoring their physicochemical properties. For industrial applications of DESs it is crucial to know their physical and thermodynami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0900c4ae2d6b77b531d4ab7eecc61487
https://doi.org/10.2298/hemind220527016t
https://doi.org/10.2298/hemind220527016t
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly. 28:237-245
Apple pomace is a solid waste derived from the apple processing industry. To foster sustainability, the apple processing industry must implement the circular economy model of biorefinery and treat apple pomace as a valuable source of apple seed oil.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7157af161f4d6d22da7afe8030c6b840
https://doi.org/10.2298/ciceq210819035t
https://doi.org/10.2298/ciceq210819035t
Autor:
Marija Miladinovic, Milica Petkovic, Ivana Bankovic-Ilic, Sandra Konstantinovic, Vlada Veljkovic
Publikováno v:
Chemical Industry. 76:75-85
Oil methanolysis over modified CaO catalysts was studied to assess the catalytic performance and to define an appropriate kinetic model. CaO was modified by commercial glycerol and a deep eutectic solvent (DES), choline chloride : glycerol (ChCl : Gl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2852f681e07ccc3761c92486ccda414c
https://doi.org/10.2298/hemind211125009m
https://doi.org/10.2298/hemind211125009m
Autor:
T Ivana Karabegovic, Z Dragan Troter, R Bojana Danilovic, G Natalija Djordjevic, S Dragisa Savic, B Vlada Veljkovic
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 27, Iss 4, Pp 313-317 (2021)
In recent years, many researchers have focused on microalgae as a potential source of lipids for various purposes. To improve the lipid yield, different biomass pretreatments have been investigated. The aim of this work was to determine the effect of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5af9c46ef0ef43c299c62946672e9b5f
https://doi.org/10.2298/ciceq201101049d
https://doi.org/10.2298/ciceq201101049d
Autor:
Milan D. Kostić, Ana V. Veličković, Olivera S. Stamenković, Jelena M. Avramović, B Vlada Veljkovic, B Jugoslav Krstic
Publikováno v:
Hemijska Industrija, Vol 75, Iss 5, Pp 257-276 (2021)
Hemijska industrija
Hemijska industrija
Wheat straw ash (WSA) was investigated as a new catalyst in biodiesel production from sunflower oil. The catalyst was characterized by temperature-programmed decomposition, X-ray powder diffraction, Hg porosimetry, N2 physisorption, and scanning elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfc881b0fd721a2ecefc3dbcec665804
http://www.doiserbia.nb.rs/img/doi/0367-598X/2021/0367-598X2105257V.pdf
http://www.doiserbia.nb.rs/img/doi/0367-598X/2021/0367-598X2105257V.pdf
Publikováno v:
Journal of the Serbian Chemical Society, Vol 72, Iss 8-9, Pp 847-855 (2007)
Ozone absorption in water was investigated in a mechanically stirred reactor, using both the semi-batch and continuous mode of operation. A model for the precise determination of the volumetric mass transfer coefficient in open tanks without the nece
Externí odkaz:
https://doaj.org/article/1a4393aa3d1a4bf6ba5e2a4561db8bf3
Autor:
B Marija Tasic, M Petar Mitrović, O Milan Biberdžić, G Ivica Đalović, D Milan Kostic, S Olivera Stamenkovic, B Vlada Veljkovic
Publikováno v:
Reciklaža i Održivi Razvoj, Vol 11, Iss 1, Pp 53-62 (2018)
Recycling and Sustainable Development (2018) 11(1):53-62
Recycling & Sustainable Development
Recycling and Sustainable Development (2018) 11(1):53-62
Recycling & Sustainable Development
The use of low-cost or priceless feedstocks such as byproducts in biodiesel production results in a reduced overall process costs. The present paper reports the use of corn germs and corn cobs as byproducts from corn-based starch production in the bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7815f4cac82336e33d497066e056ca4b
https://scindeks-clanci.ceon.rs/data/pdf/1820-7480/2018/1820-74801801053K.pdf
https://scindeks-clanci.ceon.rs/data/pdf/1820-7480/2018/1820-74801801053K.pdf
Autor:
Z Milica Zlatkovic, Sandra S. Konstantinović, T Jovan Ciric, B Slavica Ilic, B Vlada Veljkovic, D Gordana Gojgic-Cvijovic
Publikováno v:
Hemijska Industrija, Vol 71, Iss 6, Pp 487-494 (2017)
Hemijska industrija
Hemijska industrija
In the present work, four derivatives of salicylaldehyde (salicylaldehyde-hydrazone, phenylhydrazone, semicarbazone and thiosemicarbazone) were synthesized using both conventional (95% ethanol) and green (crude glycerol from biodiesel production) sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18b15d0c5fcc91c589f62eb123454fe1
https://doi.org/10.2298/hemind170124011k
https://doi.org/10.2298/hemind170124011k
Autor:
B Vlada Veljkovic, Sandra S. Konstantinović, S Dragisa Savic, T Jovan Ciric, B Slavica Ilic, R Bojana Danilovic
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 22, Iss 4, Pp 461-489 (2016)
The increased production of biodiesel as an alternative fuel involves the simultaneous growth in production of crude glycerol as its main by-product. Therefore, the feasibility and sustainability of biodiesel production requires the effective utiliza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ac4a5a39f6b29aed161b5e26c591e25
https://doi.org/10.2298/ciceq160303019k
https://doi.org/10.2298/ciceq160303019k