Ammonium → Ammonia
Reaction equation
C([NH:5]CP)C([O-])=O.[NH4+].[CH2:9]([NH:13][CH2:14][P:15]([OH:18])([OH:17])=[O:16])[C:10]([OH:12])=[O:11].[NH4+]>O>[NH3:5].[CH2:9]([NH:13][CH2:14][P:15]([OH:18])([OH:17])=[O:16])[C:10]([OH:12])=[O:11]Participants
Reactant 3
Product 2
Reagents, catalysts & solvents 1
Procedure
A process is provided for preparing ammonium glyphosate powder suitable for downstream processing by extrusion to make a granular formulation comprising ammonium glyphosate and surfactant. The process comprises (a) mixing (i) solid particulate glyphosate acid, (ii) water in an amount of about 0.5 to about 3 parts by weight per part by weight of glyphosate acid, and (iii) a base that supplies ammonium cations, in an amount of about 0.8 to about 1.25 mole equivalents of ammonia per mole of glyphosate acid, to form an aqueous reaction medium; (b) allowing the glyphosate acid to react with the base in the reaction medium to form a reaction product comprising a concentrated aqueous solution of ammonium glyphosate; (c) drying the reaction product, for example with a drum dryer, to recover a particulate solid; and (d) accelerating the particulate solid in a turbulent high-velocity gas stream, for example in a jet mill, to form by particle-particle attrition an ammonium glyphosate powder having a mean particle size of about 5 to about 20 μm.
Sources & evidence
- ORD record
- ord-2863cfa9c07f44ba86d6f46648b74c83
- Source dataset
- uspto-grants-2002_09
- Patent number
- US06448434B1
Reaction notes
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