...There are three established industrial manufacturing methods: (1) reacting with sodium carbonate to produce rhenanite ( CaNaPO4) , (2) defluorinating in the form of hydrogen fluoride by high-temperature reaction with steam, and (3) a combination of (1) and (2). An example of (1) is the German rhenania phosphate, and an example of (2) is the American defluorinated calcined tricalcium phosphate. (3) has been industrialized in Japan, and calcined phosphate fertilizer in the strict sense refers to this. ... *Some of the terminology that mentions "Rhenania phosphate" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…工業的製法が確立されているのは,(1)炭酸ナトリウムと反応させレナニットCaNaPO4をつくる,(2)水蒸気との高温反応でフッ化水素の形で脱フツさせる,(3)上の(1)と(2)の折衷型,の3種である。(1)の例はドイツのレナニアリン肥Rhenania phosphate,(2)の例はアメリカの脱フツ焼成リン酸三石灰である。(3)は日本で工業化されており,狭義の焼成リン肥はこれを指す。… ※「Rhenania phosphate」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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