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As of 2015, the top phosphate rock source are Algeria, Egypt, Morocco, Jordan and Peru. [9] By 2013, 35 percent of Philphos' total production serves the Philippine market while the remaining 65 percent exported to foreign markets namely Vietnam, Thailand, Malaysia, Indonesia and Cambodia, India, Bangladesh, Pakistan, and Taiwan.
It uses a specially fluidized and siliconized monoammonium phosphate powder. [1] ABC dry chemical is usually a mix of monoammonium phosphate and ammonium sulfate, the former being the active component. The mix between the two agents is usually 40–60%, 60–40%, or 90–10% depending on local standards worldwide.
In 2015, 27.6 million metric tons of marketable phosphate rock, or phosphorite, was mined in the United States, making the US the world's third-largest producer, after China and Morocco. The phosphate mining industry employed 2,200 people. The value of phosphate rock mined was US$2.2 billion.
Rashtriya Chemicals & Fertilizers Ltd. (RCF) is an Indian central public sector undertaking which produces chemical and fertilizers and is based in Mumbai. [2] [3] It is under the ownership of Government of India and administrative control of Ministry of Chemicals and Fertilizers.
Phosphate is also used in animal feed supplements, food preservatives, anti-corrosion agents, cosmetics, fungicides, ceramics, water treatment and metallurgy. The production of fertilizer is the largest source responsible for minerals mined for their phosphate content.
The small island nation of Nauru and its neighbor Banaba Island, which used to have massive phosphate deposits of the best quality, have been mined excessively. Rock phosphate can also be found in Egypt, Israel, Palestine, Western Sahara, Navassa Island, Tunisia, Togo, and Jordan, countries that have large phosphate-mining industries.
Phosphate rock production greatly increased after World War II, and remains the primary global source of phosphorus and phosphorus chemicals today. Phosphate rock remains a feedstock in the fertiliser industry, where it is treated with sulfuric acid to produce various "superphosphate" fertiliser products.
Consequently, the widespread use of phosphate fertilizers has increased soil fluoride concentrations. [95] It has been found that food contamination from fertilizer is of little concern as plants accumulate little fluoride from the soil; of greater concern is the possibility of fluoride toxicity to livestock that ingest contaminated soils.