Washability


Also found in: Dictionary, Thesaurus.

washability

[‚wäsh·ə′bil·əd·ē]
(mining engineering)
Coal properties determining the amenability of a coal to improvement in quality by cleaning.

Washability

 

a technical estimate of the potential extent of extraction of valuable components from ores and coals by concentration of the useful minerals. The property depends on the mineralogic-petrologic and structural composition of the useful mineral and on the method of extraction. Studies of washability are performed to develop the technology of processing of a mineral for the purpose of designing a concentration plant; to improve industrial processes, equipment, and concentration conditions; to evaluate new flotation reagents; and to study the mechanisms of concentration.

Washability studies are performed on material obtained as a result of sampling of the mineral deposit. Studies of the material composition of the sample by mineralogic-petrologic granulometric, phase, and chemical analysis are followed by the plotting of washability curves in coordinates of the yield of the product being concentrated versus the content and extraction of a component. The sample is then concentrated according to the method selected, and the results are evaluated by means of technical and economic analysis. In some cases the electrical, magnetic, and adsorption properties of minerals are determined at the same time.

REFERENCE

Mitrofanov, S. I., L. A. Barskii, and V. D. Samygin. Issledovanie poleznykh iskopaemykh na obogatimost’. Moscow, 1974.

L. A. BARSKII

References in periodicals archive ?
Relative scrub resistance was evaluated on the Garner Straight Line Washability and Wear Abrasion Machine.
The combination of the washability recovery rates and thick coal seams enhance the economics of future mining operations due to the high product coal ratio versus ROM Coal.
A consultant in fossil fuel analysis and quality management based in New Jersey, Nadkarni lists the ASTM methods for measuring such characteristics as carbon and hydrogen in coal and coke, mercury, plasticity of coal, sieve analysis, specific gravity of lump coal, and washability.
Due to its high durability and superior washability, it has excellent flow and coverage, therefore giving a smooth surface, he said.
Cotton 75 excels thanks to its soft handle, outstanding volume-weight balance and sheer washability.
For a project like this, where washability is key, organic cotton is a perfect choice.
Struktol MR 161A is said to offer such benefits as fast biodegradability, good wetting of surfaces, no swelling of rubber, it is silicone-free, no corrosion of metal parts, low pour point, thermal and chemical stability, no mold fouling, it is non-irritating to the skin, it is very cost-effective, it is a stable lubricant film and easy washability with water.
Issues on toxicity of flame-retardant treatments, as well as washability, were also part of the discussion.
Fabrics are especially chosen for their washability, wearability and durability with non-iron and Tefloncoated items.
A latex topcoat delivers burnish resistance plus improved washability and touch-up, to ensure long-lasting appeal.
Rugby shirts have always been ideal armchair wear, with their generous cut and washability, but the new Nike shirts are skin-tight for goodness sake.
They provide the user with benefits such as acid resistance as well as washability.