Lesson3 Coal Assay

Coal assay techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. 煤质分析技术是专门用来测量煤的特定物理和化学性质的特定分析方法。 These methods are used primarily to determine the suitability of coal for coking, power generation or for iron ore smelting in the manu……Read More

Lesson3 Part1

Coal Assay Coal assay techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. 煤质分析技术是专门用来测量煤的特定物理和化学性质的特定分析方法。 These methods are used primarily to determine the suitability of coal for coking, power generation or for iron ore smelting ……Read More

Lesson2 Part4

Liquefaction Coal can also be converted into liquid fuels like gasoline or diesel by several different processes. 煤还可以通过几种不同的方式转化为汽油柴油等液体燃料。 The Fischer-Tropsch process of indirect synthesis of liquid hydrocarbons was used in Nazi Germany for many years and is today used by Sasol in South Africa. 间接……Read More

Lesson2 Part3

Metallurgic coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Coke from coal is grey, hard and porous, and has a heating value of 29.6 MJ/kg. 冶金焦在高炉炼铁时用作燃料和还原剂。煤制焦炭呈灰色、坚硬、多孔,热值为29.6MJ/Kg。 Byproducts of this conversion of coal to coke include coal tar, ammonia, l……Read More

Lesson2 Part1

Types and Application of coal Coal is a fossil fuel formed in swamp ecosystems where plant remains were saved by water and mud from oxidization and biodegradation. 煤是沼泽生态系统中形成的化石燃料,在沼泽生态系统中,植物残骸在水和泥浆的氧化和生物降解作用中被保存下来。 Coal is a readily combustible black or brownish-black rock. It is a sedimentary roc……Read More

Lesson1 Part2

Ores are also classified by the nature of their gangues, such as calcareous or basic (lime rich), or siliceous, or acidic (silica rich). 矿石还根据脉石的性质进行分类,例如钙质或碱性(富含石灰),硅质或酸性(富含二氧化硅)。 The minimum metal content required for a deposit to qualify as an ore varies from metal to metal. 矿床符合矿石的最低金属含量因金属而异。 M……Read More

Lesson1 Part1

Metallic Ores An ore can be described briefly as an accumulation of mineral in sufficient quantity as to be capable of economic extraction. 一个矿石可以简单地描述为一个足够数量的、能够经济开采的矿藏。 This establishes the market price of the metal as a critical criterion in the definition, and this will vary according to the com……Read More