Phosphate rock and Phosphorite, calcined 化学特性,用途語,生産方法
解説
燐灰土，燐酸石灰に不純物を混じた白色または灰褐色の土。脊椎動物の骨格・排泄物などが堆積したもの。燐分の多いものは人造肥料の原料となる。最初は燐灰石に対する名称であったが，現在は堆積岩でP2O5が19.5％以上含まれているものに用いられる［Kirwan : 1794, Pettijohn : 1975］．ギリシャ語のphos-phorusは光をもたらす意味．
农业用途
Phosphorite or mineral phosphate is made by grinding
rock phosphate, a natural mineral found in the form of
sedimentary rocks containing various calcium phosphates.
It is used as a phosphatic fertilizer, and is a primary
source of phosphorus. It is a mineral containing calcium
phosphate with hydroxyl groups or is hydroxy apatite.
Phosphorite is a continental phosphatic rock,
consisting of concretions of collophanite, found in
decalcification clays. The most famous phosphorites are
from Causses du Quercy (France).
Phosphate rock and Phosphorite, calcined 上流と下流の製品情報
原材料
準備製品