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Related to Liquation: zone refining, electrolytic refining


Separation of fusible metals from less fusible ones by applying heat.
The partial melting of an alloy.



in nonferrous metallurgy, the process of separating an alloy into its component parts based on the difference in their melting points. When an alloy is heated slowly, the metals and low-melting eutectics melt out of it; the refractory part remains as a friable, spongy mass. Reverbatory furnaces with sloping hearths are used for liquation.



(geology), the process of the separation of an initially uniform magmatic melt into two immiscible liquids of differing composition as the temperature drops. As a result of the crystallization of the liquids, mineral aggregates (rock and ores) of differing composition are formed.

In the second half of the 19th century, liquation was viewed as one of the forms of the differentiation of magma, as a result of which there arose different parent magmas that gave rise to all the various igneous rocks. Subsequently, as a result of experimental data on silicate systems, a study of metallurgical slags and glass, as well as petrographie studies, the areas where liquation could be employed to explain geological processes were greatly reduced. Many researchers consider liquation a factor in the formation of magmatic sulfide ores. Liquation is also thought to be significant with respect to the formation of chamber pegmatites, the varioles in variolites, and certain ore-forming solutions. Liquation phenomena in silicate melts, particularly those rich in volatile components (fluorine, water, and boron), have been substantiated experimentally by American (O. F. Tuttle and J. Friedman) and Soviet (D. P. Grigor’ev, O. A. Esin, la. I. Ol’-shanskii) geologists.


Beliankin, D. S. “Magmaticheskaia likvatsiia—mozhno li verit’ v nee i kakie my imeem k tomu osnovaniia?” Izv. AN SSSR: Seriia geologi-cheskaia, 1949, no. 5.
Dolomanova, E. I. “O vozmozhnoi roli likvatsii silikatnykh rasplavov v rudoobrazovanii.” In Ocherki geokhimii endogennykh i gipergennykh protsessov. Moscow, 1966.


References in periodicals archive ?
The court will initiate a compulsory liquation procedure to liquate the dissolved company.
Influence of Electron Beam Welding Parameters and Metallurgical Factors on Intergranular Liquation Cracking Susceptibility of Cast Alloy 718.
Following delivery of the termination notice, the court entered an order commencing the SIPA proceeding and authorizing the trustee appointed to oversee the liquation of LBI's estate to take immediate possession of LBI's property.
It is quite clear that the main area of application of ESR TC is the remelting of creep-resisting alloys, susceptible to spotty liquation.
2004 Liquation cracking in full-penetration Al-Cu welds.
Commonly occurring "chondrulein-chondrule" texture is indicative of multiple liquation layering of matter and its intense chaotic mixing (convection).
Shock liquation of sand clay", Beijing: Earthquake Industry Press.
Liquation value is the estimated amount that would be left if the owner were forced to quickly liquidate all of the assets and pay off the liabilities.
The lead plant treats sulphide concentrates by sintering, shaft furnace reduction, two stage liquation of copper and alkaline oxidation of impurities.
The high-grade Parkes Crust from the first desilvering kettle is transferred to the silver refinery and melted in liquation furnaces.
Consequently, it would be beneficial to the Company and its shareholders to continue to hold this asset until an attractive exit alternative can be found and the voluntary liquation of the Company would allow the Company to continue to manage this investment at the lowest possible cost until such time.