Pretraživanje
Prikaz rezultata 11-20 od 22
Boron removal by anion exchangers impregnated with citric and tartaric acids
(Taylor & Francis Inc, Philadelphia, 1996)
The separation of boron compounds, boric acid and borax, with anion-exchange resins, before and after impregnation with citric and tartaric acids, has been studied. Three different commercially available anion exchangers ...
A rheological study of behavior of polymer-bitumen blends
(Erdoel Erdgas Kohle/EKEP, 1996)
The influence of the elastomer such as SBS and SBR and their mixtures on the structure and rheological properties of blown bitumen B 65 blends, was studied. The crude oil denoted as SEB (Soviet Export Blend) was used to ...
Formation mechanism, morphology and synthesis of alpha-Al2O3, mullite and cordierite particles obtained by the ultrasonic spray pyrolysis
(Trans Tech Publications Ltd, Durnten-Zurich, 1996)
The present stage in our investigations of the synthesis of high-purity, submicrometer and spherical Al2O3, mullite and cordierte powders obtained by the ultrasonic spray pyrolysis is presented. The influence of precursors ...
Diureas as ligands in asymmetric reduction of ketones
(Amer Chemical Soc, Washington, 1996)
Gas-solid and gas-liquid mass-transfer coefficients
(Wiley, Hoboken, 1996)
Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis
(Cambridge Univ Press, New York, 1996)
Submicrometer spherical particles of mullite powder were synthesized by ultrasonic spray pyrolysis of emulsion and solutions, using tetra-ethyl-orthosilicate (TEOS) or silicic-acid and Al(NO3)(3) . 9H(2)O as initial ...
Electron microscopy observations of deformation twinning in a precipitation hardened copper-titanium alloy
(Elsevier Science Ltd., 1996)
Temperature-programmed desorption mass spectrometric study of the surface properties of glassy carbon
(Wiley, Hoboken, 1996)
The temperature-programmed desorption (TPD) method combined with mass spectrometric analysis has been applied to the characterization of glassy carbon (GC) and modified glassy carbon surfaces. Five different samples of GC ...
A study of the template conformation in CoAPO-21
(Akadémiai Kiadó, 1996)
A model system structurally based on CoAPO-21 has been studied by the PM3 MO method in order to examine the conformation of the encapsulated template species. It is confirmed that the observed conformation of the template ...
On the possibility of the preparation open framework manganese phosphate
(Elsevier Inc., 1996)
Manganese(ll)/phosphate/organic template hydrothermal reactions were investigated with the aim of preparing novel crystalline porous materials. Ethylenediamine, isopropylamine, and piperidine were explored as organics that ...