نتایج جستجو برای: cement rotary kiln
تعداد نتایج: 38032 فیلتر نتایج به سال:
The fate of mercury (Hg) in cement processing and products has drawn intense attention due to its contribution to the ambient emission inventory. Feeding Hg-loaded coal fly ash to the cement kiln introduces additional Hg into the kiln's baghouse filter dust (BFD), and the practice of replacing 5% of cement with the Hg-loaded BFD by cement plants has recently raised environmental and occupationa...
As pyrometallurgical technologies to smelt nickel metal from the oxide ore, melting reduction process using an electric furnace (Elkem) and semi-melting a rotary kiln (Krupp-Renn) with saprolite ore as raw material have been established operated commercially. However, in future, it is expected that will be difficult because of decline grade necessary develop new adaptable lower processing ore.
The utilisation of industrial bi-products such as cement kiln dust (CKD) is of increasing importance as an option for stabilising contaminated sites due to its pozzolanic nature and also in view of minimising the environmental impact. The experimental programme was carried out in the present study to evaluate the efficacy of CKD as stabilising agent at different percentages 2%, 6%, and 14% (w/w...
Carbon sequestration through the formation of carbonates is a potential means to reduce CO2 emissions. Alkaline industrial solid wastes typically have high mass fractions of reactive oxides that may not require preprocessing, making them an attractive source material for mineral carbonation The degree of mineral carbonation achievable in cement kiln dust (CKD) underambienttemperatures and press...
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