Chemical Engineering - Fertiliser Technology - Discussion
Discussion Forum : Fertiliser Technology - Section 1 (Q.No. 16)
16.
Reaction of dilute sulphuric acid with phosphate rock produces
Discussion:
11 comments Page 2 of 2.
Aditi bhattacharya said:
5 years ago
Phosphoric acid is produced from fluorapatite, known as phosphate rock, 3Ca3 (PO4)2. CaF2, by the addition of concentrated (93%) sulfuric acid in a series of well-stirred reactors. This results in phosphoric acid and calcium sulfate (gypsum) plus other insoluble impurities.
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