|Series||Information circular (United States. Bureau of Mines) -- 8913|
Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Author: T. A.#N# (Timothy A.) Clancy. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) http Author: T. A.#N# (Timothy A.) Clancy. A technology of environment-friendly refractories based on briquetted dry-ground dolomite, magnesia-silicate raw materials, and stabilizing additives has been developed. The potential use of the newly designed refractories as an alternative to chromite-periclase refractories Cited by: 3. The actual global use of sintered dolomite is estimated to t / a, whereof 90% are used in the steel industry and 10% in the cement industry. Dolomite bricks are sold according to their grades and shapes between and € / t. The mineral dolomite has been discovered by the French geologist Déodat de Dolomieu in the year
InfodriveIndia provides latest Dolomite Refractory export import data and directory of Dolomite Refractory exporters, Dolomite Refractory importers, Dolomite Refractory buyers, Dolomite Refractory suppliers, manufacturers compiled from actual shipment data from Indian Customs and US Customs. Along with the India Export Import data, InfodriveIndia also provides Dolomite Refractory USA Import. The potential use of the newly designed refractories as an alternative to chromite-periclase refractories is emphasized. and dolomite (Mg,Ca(CO3)2) and their contribution in industrial. After the gloomy days of the financial downturn, dolomite could see opportunities coming from the refractories industry as an alternative to minerals such as magnesia About 20% of dolomite produced is used for specific applications in the steel and cement industries, the . Typical refractories are composed of fireclay, quartz, and silica. In a basic refractory, the common materials used are calcium oxide, magnesium oxide, dolomite, and chrome-magnesite. In an acidic environment, the main raw materials used are zirconium dioxide, .
Question is ⇒ Chromite refractories, Options are ⇒ (A) are bonded with lime and clay., (B) (free from silica) have better thermal fatigue resistance than silica and magnesite refractories., (C) are resistant to basic slag., (D) all (a), (b) and (c)., (E), Leave your comments or Download question paper. To help reduce the nation's dependence on imported chromite, the Bureau of Mines is conducting research on the use of dolomites as an alternate material. Dolomite is a plentiful domestic resource and offers certain advantages as a refractory raw material. Why Dolomite? There are a number of unique properties in dolomite brick that make dolomite well suited for use as a refractory lining in a cement rotary kiln. A high degree of refractoriness allows the dolomite brick to withstand the temperatures and stresses involved in the burning zone, the corrosion resistance to alkalis, and a reducing atmosphere, as well as excellent coatability. Chromite—A cost-effective refractory raw material for refractories in various metallurgical applications N. McEwan, T. Courtney, R.A. Parry, and P. Knupfer Vereeniging Refractories (Pty) Ltd Keywords: refractories, chromite, Marico Abstract – This paper examines the role of refractory-grade chromite in refractories.