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Fizičkohemijske i strukturne osobine kiselinski modifikovanog zeolitskog tufa - heu-tip zeolit / Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid
(Srpsko hemijsko društvo, Beograd, 2004)
Uzorci prirodnog zeolita (HEU-tipa) iz ležišta Novakovići – klinoptilolit- Ca (u blizini Prijedora, Bosna i Hercegovina), modifikovani su različitim koncentracijama hlorovodonične kiseline (od 10-3 M do 2 M), a u cilju ...
Obtainment of scheelite-sulphide preconcentrate from polymetallic ore from 'Rudnik' mine
(Univerzitet u Beogradu - Tehnički fakultet u Boru, Beograd, 2005)
The possibility of preconcentration of scheelit and sulphide minerals from mine "Rudnik" polymetallic ore, using the gravity concentration process was investigated in this paper. Because of wolfram minerals occurrence in ...
Uticaj vrste izmenljivog katjona kod klinoptilolita i montmorilonita na adsorpciju aflatoksina B1 / The effect of exchangeable cations in clinoptilolite and montmorillonite on the adsorption of aflatoxin B1
(Srpsko hemijsko društvo, Beograd, 2001)
U ovom radu je ispitivana adsorpcija aflatoksina B1 na različitim oblicima klinoptilolita i montmorilonita na 37 ºC i pH 3-8 u vodenom rastvoru elektrolita. Polazni (Ca) oblici klinoptilolita i montmorilonita su prvo ...
Uticaj đubrenja na dinamiku mineralnog azota u zemljištu pri gajenju inbred linija kukuruza / Effects of fertilisers on the dynamics of mineral nitrogen in soil under maize inbred lines
(Savez poljoprivrednih inženjera i tehničara, Beograd, 2002)
Ispitivanja su obavljena na oglednom polju Instituta za kukuruz "Zemun Polje" tokom 1998. i 1999, na zemljištu tipa semiglejno-karbonatni černozem. U ogledu su korišćene tri inbred linije kukuruza (L1, L2 i L3) različitih ...
The adsorption of sulphate, hydrogenchromate and dihydrogenphosphate anions on surfactant-modified clinoptilolite
(Elsevier Science Bv, Amsterdam, 2000)
The adsorption of sulphate, hydrogenchromate and dihydrogenphosphate anions on surfactant-modified clinoptilolite (SMC) was investigated. The SMCs were prepared by the adsorption of cis-1-aminoctadecen-9 (oleylamine) on ...
The influence of detergents and active components of detergent on bioproduction of organic matters and enzymatic activity of some species of fungi
(Casa Editrice Tilgher-Genova sas, 2004)
Detergent (Merix, "Merima" Krusevac) applied in concentration of 1 % vol. showed specific influence on the bioproduction of some 15 different amino acids and on the enzyme activity of the species of fungi A. niger, A. ...
Application of different collectors in the flotation concentration of feldspar, mica and quartz sand
(Pergamon-Elsevier Science Ltd, Oxford, 2004)
The potential application of different cation collectors in the flotation concentration of mica, feldspar and quartz sand has been investigated. Raw materials (Bujanovac and Ub) from two localities in Serbia were used. The ...
Ispitivanje mogućnosti vezivanja čestica letećeg pepela iz termoelektrana elementarnim sumporom / Investigation of the possibility of binding fly ash particles by elemental sulphur
(Savez hemijskih inženjera, Beograd, 2006)
U ovom istraživanju je ispitivana mogućnost korišćenja elementarnog sumpora (koji se javlja kao sporedni proizvod u procesu rafinacije nafte), kao vezivnog sredstva čestica letećeg pepela iz termoelektrana, manjih od 63 ...
Zavisnost prinosa semena inbred linija kukuruza od sadržaja mineralnog azota u zemljištu u fazi svilanja / The dependence of seed yield of maize inbred lines on the content of mineral nitrogen in soil in the silking stage
(Savez poljoprivrednih inženjera i tehničara, Beograd, 2003)
U periodu 1998-1999. godine obavljena su ispitivanja u Institutu za kukuruz "Zemun Polje" u kojima je analiziran prinos semena inbred linija kukuruza u zavisnosti od sadržaja mineralnog azota u zemljištu tipa semigleno-karbonatni ...
Hydration of mechanically activated mixtures of Portland cement and fly ash
(University of Chemistry and Technology, Prague, 2007)
Fly ash (FA) can be used in cement mixtures with certain limitations. For experimental purposes, mixtures of Portland cement (PC) and FA were used. The content of FA in the mixtures was either 30% or 50%. The mechanical ...