Attrition of rock samples

A method for measuring the rate of attrition of rock, comprises the steps of: (i) providing a sample of rock consisting substantially of particles greater than a selected size, (ii) agitating the sample of rock in a liquid, (iii) removing particles of rock above the selected size from the liquid to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MICHELLE BRIDGET CARRIER, GERALD HENRY MEETEN, PAUL WILLIAM WAY
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for measuring the rate of attrition of rock, comprises the steps of: (i) providing a sample of rock consisting substantially of particles greater than a selected size, (ii) agitating the sample of rock in a liquid, (iii) removing particles of rock above the selected size from the liquid to leave a slurry comprising the liquid and any particles of rock of the selected size or smaller, and (iv) measuring a property of the slurry indicative of the amount of rock in the slurry. Preferably, the property measured is the density of the slurry which is determined non-gravimetrically. Apparatus for effecting the invention is claimed (claim 11) and comprises a container 2 in which granules of rock 1 are agitated in a liquid 5. After agitation, particles of rock above the selected size are removed from the liquid by filtration, the filter 4 being located at an end 8 of the container.