Search results for keyword: maceral
Comparison of foundry coke quality standards in various countries
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Comparison of Composite Standards for Iron Quality in Different Countries
The quality of iron is largely dependent upon the type of material used in its production. It is not only important to select the right material but also to adhere to quality standards. The quality standards of iron vary i......
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Derek
colloidal layer index
The indices of a coal’s vitrinites give an indication of its grade and are used in the coal classification system. Vitrinites are made up of black, ribbon-like bands of aromatic material that are buried deep in the coal bed matrix. The propensity for this material to form separate bands is determ......
Vitrinite reflectance of coal
Reflectivity of Bituminous Coal
Bituminous coal is a sedimentary rock that is largely composed of carbon and hydrocarbons. It is a form of black coal and is classified as an intermediate rank coal due to its general properties. Bituminous coal is the most abundant form of coal found in the world,......
Cohesive grade of coal quality index
Bonding Index of Coal Quality Indicators
Coal quality indicators are measurements that provide the specifications of various coal grades, including the determination of their calorific values. The calorific value of coal is determined to be a reliable way to assess the rank of the coal, which can......
Coal Quality Requirements for Coking Coal
Requirements for Coal Quality of Coke-making
Coking is a method of heating coal in an oxygen-deficient environment, which changes its chemical and physical properties so that it can be used for various industrial applications, including steel making. The quality of coal used in coking process is v......
Coal Geology
Coal Geological Science
Coal geological science is the branch of earth science which studies the origin, distribution, and composition of coal. It also evaluates their influence on the surrounding environment. A deep understanding of coal geology can provide insights into topics such as the forma......
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