Patent ID: 11858811
Assignee: NOVAPHOS INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  F | IPC C

Claim 15:
16. A phosphorus production method comprising:
forming a reducing bed containing feed agglomerates in a reaction chamber by heating the feed agglomerates;
the feed agglomerates initially fed into the reaction chamber containing phosphate ore and carbonaceous material;
continuously moving the reducing bed through the reaction chamber with the feed agglomerates substantially stable while in the reducing bed;
maintaining a temperature in the reaction chamber from 1250 to 1380° C. along at least a portion of the reducing bed;
generating off gas from the reaction chamber, the off gas containing phosphorus in the form of elemental phosphorus and/or phosphorus pentoxide;
collecting phosphorus from the off gas; and
removing from the reaction chamber a residue containing processed agglomerates.