Browsing Engineering by Subject "Zinco"
Now showing items 1-6 of 6
-
Conversion of furan over gallium and zinc promoted ZSM-5 : the effect of metal and acid sites
(2020) [Journal article]The addition of gallium or zinc to ZSM-5 increases the aromatic selectivity and decreases the olefin selectivity for furan conversion. Both the benzene and naphthalenes selectivities increase with small amounts of gallium ... -
Corrosion behavior of a conversion coating based on zirconium and colorants on galvanized steel by electrodeposition
(2015) [Journal article]Corrosion performance of Zr-based coating on substrates obtained by zinc electrodeposition in an alkaline bath is compared to chromate coatings (Cr III and Cr VI). The “nano Zr” is a conversion coating formed by immersion ... -
Dynamic behaviour of an electrolyser with a two phase solid-liquid electrolyte : Part I : spectral analysis of potential fluctuations
(1994) [Journal article]The dynamic behaviour of a simplified electrolyser with a two phase solid-liquid electrolyte was investigated. The current-voltage curve and the impedance of the working electrode (current collector) was measured. In ... -
Estudo comparativo da resistência à corrosão de aços revestidos pelos processos de galvanização a fogo, galvannealing e galvalume
(2013) [Journal article]Este trabalho estuda comparativamente a corrosão de revestimentos à base de zinco sobre aços. Para tanto, é analisado o comportamento eletroquímico dos revestimentos sobre aço livre de intersticiais: zinco galvanizado a ... -
Evaluation of zinc removal and compressive strength of self-reducing pellets composed of Electric Arc Furnace Dust
(2019) [Journal article]The amount of Electric Arc Furnace Dust (EAFD) is continuously increasing in mini-mill steel plants. This dust is considered a hazardous waste because of the presence of elements like lead, cadmium and chromium. Among many ... -
Pre-concentration potential evaluation for a silicate zinc ore by density and sensor-based sorting methods
(2019) [Journal article]Pre-concentration consists of the preliminary discarding of a fraction of the mineral processing plant feed which contains little or none of the mineral of interest, reducing the mass to be processed in downstream operations ...