Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Patent
1981-08-21
1983-02-22
Vertiz, O. R.
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
423167, 241 16, C01B 2516, C01F 1144
Patent
active
043748171
ABSTRACT:
The viscosity of phosphate rock slurries is reduced by incorporating in the slurry both sodium tripolyphosphate and an alkaline material, particularly sodium hydroxide. The combined amount of these two materials required to achieve a given viscosity reduction is significantly lower than the weighted average of the amounts required for each to produce individually the same viscosity reduction. The defined alkaline materials, other than sodium hydroxide, are sodium carbonate, ammonium hydroxide and potassium hydroxide.
REFERENCES:
patent: 4042666 (1977-08-01), Rice et al.
patent: 4044107 (1977-08-01), Houghtaling
patent: 4113184 (1978-09-01), Loughrie
Lehman Richard L.
Shepherd John A.
Cave Edwin B.
FMC Corporation
Heller Gregory A.
Ianno Frank
Vertiz O. R.
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