نتایج جستجو برای: copper slags
تعداد نتایج: 83871 فیلتر نتایج به سال:
This paper presents a significant method and a basic idea of waste heat recovery from high temperature slags based on Time Temperature Transformation (TTT) curves. Three samples with a fixed CaO/SiO2 ratio of 1.05 and different levels of Al2O3 were designed and isothermal experiments were performed using a Single Hot Thermocouple Technique (SHTT). The TTT curves established through SHTT experim...
Limestone filler is a raw material that is already used in several applications like paints, bricks, bituminous mixtures...etc. Moreover, and particularly in Belgium, classical additions for concrete like fly ashes and granulated blast furnace slags are becoming rare; there is a need for new additions that could have a positive effect on the properties of the fresh and hardened cementitous comp...
During the processes of copper production, post-reaction slags are formed and must be transported to storage sites as waste. The working conditions slag ladles extreme, incl. due high reactivity cyclicality operation ladles. material vat walls is exposed intense factors: chemical in form a liquid phase temperature gradients (thermal shocks). Which leads reduction campaign length single vat. pap...
The knowledge of Cr2O3 activity in slag is necessary to decarburize chromium-containing special steel while minimizing the oxidation loss chromium. In present study, firstly, phase relationship CaO–SiO2–Cr2O3 system was determined at 1573 K. Subsequently, activities two- and three-phase coexisting slags K were measured by equilibrating molten copper with oxide phases under a stream Ar + H2 CO2 ...
this study was conducted in order to evaluate the effects of long term ageing on toughness andresilient modulus of asphalt concrete mixtures containing electric arc and basic oxygen furnacesteel slags. after initial evaluation of the properties of steel slags using x-ray diffraction andscanning electric microscope, eleven sets of laboratory mixtures were prepared. each set wastreated replacing ...
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