phosphate rock


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phosphate rock

n.
Any of various rocks composed largely of phosphate minerals, especially apatite, used as fertilizer and as a source of phosphorous compounds.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
It is currently producing around 6.5 Mt/y of treated phosphate rock.
The letter indicated that in 2012 and 2013 New Zealand companies imported about 660,000 tonnes of phosphate rock from Western Sahara with a value around 111 Million US Dollars going to the Moroccan treasury.
Blessed with more than 2bn tonnes in phosphate ore resources, PhosAgro's subsidiary Apatit covers all of the group's requirements for phosphate rock. Its igneous rock formations are less enriched with residual elements compared to the sedimentary deposits exploited by its peers.
Fosfertil, a producer of phosphate and nitrogen fertilisers, owns three phosphate mines, two ammonia plants and finished fertiliser plants with an upgrading capacity of 3.4 million tonnes phosphate rock and 600,000 tonnes ammonia a year.
Additional keywords: acid soils, phosphate rock dissolution, soil pH, calcium, P.
On the export market, Morocco saw phosphate rock sales 6% lower at 11.7 Mt, having fallen by 13% in the previous year.
To enable the Repurpose Plan, the Company intends to procure higher grade phosphate rock from third parties and, once operational, from Itafos Farim.
Among specific topics are tailoring collectors to allow sea water usage in phosphate beneficiation, recovering rare earth elements from phosphate rock and phosphate mining waste products using a novel heterogeneous adsorption polymer, how phosphate rock quality impacts the phosphoric acid plant and the granulation plant operations, the effect of calcium concentrate on calcite flotation from apatite using carbonic gas, and a comparative study of different column sizes for ultrafine apatite flotation.
Besides, manufacturing process of Superphosphates Market fertilizers follows a reaction which involves raw phosphate rock and an appropriate percentage of water and sulphuric acid.
'This value is higher or equivalent to several sources of phosphate rock materials or water-soluble phosphate sources (Triple Super Phosphate).