نتایج جستجو برای: beneficiation
تعداد نتایج: 500 فیلتر نتایج به سال:
In the present work, effects of accelerated carbonation on physical and microstructural properties recycled concrete fines are systematically studied. The RCF was prepared by crushing a base CEM I mixture made in laboratory with water-to-cement ratio 0.54 seal-cured for 28 days. CO2 overpressure, ambient temperature, duration uptake, water absorption, porosity RCFs investigated central composit...
In recent years, coal production and consumption increased dramatically, especially in China. So, more and more attentions have been paid to coal preparation and coal ash utilization with the growing concern about the pollution by fly ash. The unburned carbon in fly ash significantly affects its utilization in many fields, especially in concrete production industry. Technologies such as flotati...
The purpose of the controller presented is to maintain the proportion of carbon content in the products of the coal washing dense medium cyclone (DMC) at a certain level by optimally manipulating the density of the heavy medium. In practice, the DMC processes are mainly controlled by empirical methods which are process specific and cannot satisfy the industrial requirements today. As a result, ...
The effectiveness of jigging operation for the beneficiation of low-grade iron ore deposits of Orissa, India has been investigated. Iron ore sample obtained from Barbil region of Orissa containing very high amount of silica and alumina was crushed using the laboratory jaw crusher and roll crusher to prepare different particle sizes. The sink and float tests were carried out to evaluate the poss...
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