Preparation of high purity phosphorus
High purity phosphorus and phosphorus compounds are prepared by first reacting H/sub 3/PO/sub 4/ with a lead compound such as PbO to form Pb/sub 3/(Po/sub 4/)/sub 2/. The Pb/sub 3/(Po/sub 4/)/sub 2/ is reduced with H/sub 2/ at a temperature sufficient to form gaseous phosphorus which can be recovered as a high purity phosphorus product. Phosphorus compounds can be easily prepared by reacting the phosphorus product with gaseous reactants. For example, the phosphorus product is reacted with gaseous C/sub 12/ to form PC/sub 15/. Pc/sub 15/ is reduced to Pc/sub 13/ by contacting it in the gaseous phase with solid elemental phosphorus. POC/sub 13/ can be prepared by contacting PC/sub 15/ in the gaseous phase with solid P/sub 2/O/sub 5/. The general process is particularly suitable for the preparation of radiophosphorus compounds.
- Assignee:
- to Department of Energy
- Patent Number(s):
- US 4287165
- OSTI ID:
- 5808814
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400703 -- Radiochemistry & Nuclear Chemistry-- Radioisotope Production
CHEMICAL PREPARATION
CHEMICAL REACTIONS
ELEMENTS
FLUIDS
GASES
LABELLED COMPOUNDS
NONMETALS
PHOSPHORUS
PHOSPHORUS COMPOUNDS
REDUCTION
SYNTHESIS