Results 11 to 20 of about 469 (250)
环境与职业医学, 2023 BackgroundThe mining of non-coal underground mines may come into contact with various types of dust, such as lead, zinc, copper, and non-metallic minerals.
Qiang TAN +5 more
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Modification of Steelmaking Slag by Additions of Salts from Aluminum Production
High Temperature Materials and Processes, 2012 The most common slag fluidiser in steelmaking is fluorspar, a mineral primarily composed of CaF2. Because of increasing consumption and decreasing availability of inexpensive fluorspar, steelmakers are seeking alternative means of achieving slag fluidity.
Walker D.C. +3 more
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Journal of Engineering and Sustainable Development, 2023 Ductile cast iron is also called spheroidal graphite cast iron or nodular cast iron. It contains graphite in the semblance of nodules. Automobile scrap (i.e., the engine block) made from gray cast iron was used in this study.
Ali A. Mnati, Kadhim K. Resan
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Utilización de cenizas volantes y mineralizadores como materia prima en la fabricación de cemento
Materiales de Construccion, 1983 In this research the process of formation of a low energy clinker is studied, when fly-ashes (rich in sulphates and lime) and fluorspar are used as raw materials (fly-ashes replaces to the tradicional raw mix partially).
Teresa Blanco Varela +2 more
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Scientific and technological aspects and prospects for application of cryogenic drilling technology
Известия высших учебных заведений: Нефть и газ, 2020 In the article, we analyze types of drilling mud, which are used to drilling intervals of permafrost rocks; the importance of wellbore stability is noted.
A. B. Tulubaev, E. V. Panikarovskii
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Influencia del CaF2 sobre la capacidad de reacción de crudos de cemento
Materiales de Construccion, 1982 The effect of a small quantity of CaF2 on the capacity of reaction of raw mixes has been studied in this paper; and for this purpose the thermal behaviours of a commercial raw mix without the addition of CaF2 were compared at different ages of ...
Ángel Palomo, M. Teresa Blanco
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Replacement of fluorspar in the desulfurization of hot metal
REM: International Engineering JournalIn the steel industry, lime is used as a desulfurizing agent and fluorspar as flux in the hot metal desulfurization process. However there are environmental concerns regarding the use of fluorspar, even when its harmful effects are not fully known.
Arthur Silva Bahiense Moreira +2 more
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Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan
Kuangchan zonghe liyongThis is an article in the field of mining processing engineering. This article takes Dechang Daluchao rare earth mineral processing tailings as the research object, conducts a beneficiation test study on fluorspar recovery, and determines the ...
Zheng ZHOU +6 more
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USING SATELLITE DATA FOR ENVIRONMENTAL IMPACT ANALYSIS IN ECONOMIC GROWTH: THE CASE OF MONGOLIA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The Mongolian economy is based on the primary and secondary economic sectors of agriculture and industry. In addition, minerals and mining become a key sector of its economy.
A. Tungalag +4 more
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