Refining

(noun)

Refining (as in non-metallurgical uses) consists of purifying an impure material, in this case a metal.

Related Terms

Examples of Refining in the following topics:

  • Steelmaking and Refining

    • Refining consists of purifying an impure material, in this case a metal.
    • In refining, the final material is usually chemically identical to the original, but purer.
    • The term "refining" is used in a narrower context.
    • For the gray pig iron to be usable, a preliminary refining process was developed to remove the silicon.
    • The product of this process was a white metal known as finers metal or refined iron.

  • Extractive Metallurgy

    • Ores are extracted through mining; they are then refined to extract the valuable element(s).
    • Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
    • The most common types of electrometallurgical processes are electrowinning and electro-refining.
    • Electro-refining is used to dissolve an impure metallic anode (typically from a smelting process) and produce a high purity cathode.

  • Metallurgy

    • Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
    • The most common types of electrometallurgical processes are electrowinning and electro-refining.
    • Electro-refining is used to dissolve an impure metallic anode (typically from a smelting process) and produce a high purity cathode.

  • Standard Units (SI Units)

    • It should be apparent that the move into modern times has greatly refined the conditions of measurement for each basic unit in the SI system, making the measurement of, for example, the luminous intensity of a light source a standard measurement in every laboratory in the world.
    • Over time they have been refined for clarity and simplicity.

  • Silver

    • Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.

  • Temperature

    • In the 16th and 17th centuries, scientists refined the observations and experiments of the Byzantines and Greeks to produce rudimentary devices relating the amount of "hotness" or "coldness" in the air.
    • Modern methods have refined the measurement to -273.16 °C.

  • Chemical Manufacturing

    • Major industrial customers include rubber and plastic products, textiles, apparel, petroleum refining, pulp and paper, and primary metals.

  • Trihalides: Boron-Halogen Compounds

    • It is also used in the refining of aluminium, magnesium, zinc, and copper alloys to remove nitrides, carbides, and oxides from molten metal.

  • Substances and Mixtures

    • Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride), and refined sugar (sucrose).

  • Iron

    • Further refinement with oxygen reduces the carbon content to the correct proportion to make steel.