Preparation of high purity phosphorus and compounds thereof particularly radiophosphorus compounds
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 Cl/sub 2/ to form PCl/sub 5/. PCl/sub 5/ is reduced to PCl/sub 3/ by contacting it in the gaseous phase with solid elemental phosphorus. POCl/sub 3/ can be prepared by contacting PCl/sub 5/ 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:
- Dept. of Energy
- Patent Number(s):
- None
- OSTI ID:
- 6755583
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CRYOGENIC FLUIDS
DRUGS
ELEMENTS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LABELLED COMPOUNDS
LABELLING
LEAD COMPOUNDS
LEAD PHOSPHATES
NONMETALS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS CHLORIDES
PHOSPHORUS COMPOUNDS
PHOSPHORUS ISOTOPES
RADIOACTIVE MATERIALS
RADIOPHARMACEUTICALS
REDUCTION
SYNTHESIS