Reaktion #3844

ord-f05182efc7494917864a6ea459070b88

Reaktionsgleichung

N
ammonia
O=P([O-])([O-])[O-].O=P([O-])([O-])[O-].O=P([O-])([O-])[O-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[F-]
phosphate rock
O=P(O)(O)O
phosphoric acid
O=S(=O)(O)O
sulfuric acid
→
O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3
P2O5

Edukte

N
ammonia
O=P([O-])([O-])[O-].O=P([O-])([O-])[O-].O=P([O-])([O-])[O-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[F-]
phosphate rock
O=P(O)(O)O
phosphoric acid
O=S(=O)(O)O
sulfuric acid

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Vorschrift

In 1970, Richmond et al ('641 supra) reacted phosphate rock with phosphoric acid and then with sulfuric acid. The resulting acidulate was subsequently neutralized with anhydrous ammonia to produce a 7-21-0 (N--P2O5 --K2O) grade slurrey fertilizer. In later investigations Pottgiesser et al ('162 supra) produced a 13.5-6-0 (N--P2O5K2O) grade slurry by reacting nitric acid with phosphate rock and subsequently feeding the resulting slurry into a body of preneutralized solution maintained at pH 7-10 by addition thereto of aqua ammonia.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: USH0000425uspto-grants-1988_02