Results 41 to 50 of about 1,079 (210)
Kinetics of desorption of hydrogen from copper chromite catalyst
, 1983 Isothermal desorption of hydrogen from copper chromite has been studied from 50 to 300° C. An empirical expression, β exp [-α q]= t, is found to fit the desorption data satisfactorily, while the application of the Elovich and the first order desorption ...
Srinivasan, K. R., Choudhary, Vasant R.
core +1 more source
Bismuth-nickel mineralization in chromitites of Mariinskii deposit (Urals emerald mines)
Литосфера, 2018 The unusual Bi-Ni mineralization, represented by parkerite, millerite, bismutohauchecornite, bismuthinite, nickeline and, possibly nickel analogue of smythite (?), found in the metasomatically altered chromite rocks of the Mariinsky emerald-beryllium ...
Mikhail P. Popov +2 more
doaj +2 more sources
Journal of Aerospace Technology and Management, 2011 Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Eunice Aparecida Campos +5 more
doaj
Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser +4 more
wiley +1 more source
Journal of the Turkish Chemical Society, Section A: Chemistry, 2023 65 Türkçe Barbaros AKKURT Journal of the Turkish Chemical Society Section A: Chemistry Araştırma Makalesi EN Cobalt-Containing Oxide Catalysts Obtained by The Sol-Gel Method with Auto-Combustion in The Reaction of Low ...
Sima ZULFUGAROVA +3 more
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Biofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1235-1243, May/June 2026.Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício +3 more
wiley +1 more source
ChemistrySelect, Volume 11, Issue 17, 5 May 2026.Efficient hydrogenation of furfural to furfuryl alcohol over a Cu‐impregnated mesoporous Cr‐silicate catalyst synthesized with PDADMAC, achieving complete conversion and 86% selectivity under mild ethanolic conditions. ABSTRACT A 10 wt.% Cu‐impregnated chromium silicate catalyst was synthesized via a sol–gel method followed by hydrothermal treatment ...
Vinicius L. Medeiros +3 more
wiley +1 more source
FirePhysChemThis work details the study conducted on composite solid propellants with activated copper chromite (ACR) as burn catalyst for its burn rate change with time due to the interaction of ammonium perchlorate (AP) with ACR.
Sathiskumar PS +3 more
doaj +1 more source
Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior
steel research international, Volume 97, Issue 5, Page 2541-2558, May 2026.This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini +4 more
wiley +1 more source
, 1988 Adsorption of nitrobenzene, aniline and water on copper chromite has been investigated at the temperatures (483-558 K) and partial pressures (0-40 kPa) involved in the catalytic process (viz.
Choudhary, V. R. +2 more
core +1 more source