Patent ID: 11939430
Assignee: J.M. HUBER CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for producing a polyphosphate composition, the process comprising:
(a) continuously introducing an aqueous slurry containing from about 5 wt. % to about 50 wt. % of a phosphate compound into a polymerization vessel;
(b1) evaporating water from the aqueous slurry in a first zone of the polymerization vessel;
(b2) polymerizing the phosphate compound in a second zone of the polymerization vessel at a temperature in a range from about 250 to about 450° C. for a time period sufficient to form the polyphosphate composition; and
(c) continuously discharging the polyphosphate composition from the polymerization vessel, wherein the polyphosphate composition comprises:
at least about 8 wt. % of a polyphosphate; and
less than or equal to about 35 wt. % of the phosphate compound.