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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.
The construction industry is the number one user of phosphogypsum in 2020, with 10.5 Mt used as concrete set retarder and 3.5 Mt used in drywall. [13] It is also used as a chemical feedstock for producing sulfates , and as a soil conditioner similar to regular gypsum. [ 14 ]
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.
It's used in kutsinta, a type of rice cake from the Philippines together with pitsi-pitsî. [4] In Assam, north east India, extensive use is made of a type of lye called khar in Assamese and karwi in Boro which is obtained by filtering the ashes of various banana stems, roots and skin in their cooking and also for curing, as medicine and as a ...
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.
Today, RONPhos currently employs 20.4 per cent of the working population of the Republic of Nauru. Although the initial layer of phosphate has been mined out (approximately 100 million tonnes), a secondary level of phosphate is believed to exist, holding nearly 20 million tonnes of minable resources.
With primary phosphate reserves exhausted by the end of the 2010s, Nauru has sought to diversify its sources of income. In 2020, Nauru's main sources of income were the sale of fishing rights in Nauru's territorial waters, and revenue from the Regional Processing Centre [ 13 ] (an offshore Australian immigration detention facility).
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.