Preparation of high purity phosphorus
- Oak Ridge, TN
- Knoxville, TN
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4287165
- OSTI ID:
- 863971
- Country of Publication:
- United States
- Language:
- English
Similar Records
Preparation of high purity phosphorus and compounds thereof particularly radiophosphorus compounds
Process for producing hydrogen from water using cobalt and barium compounds
Related Subjects
compound
compounds
contacting
easily
elemental
elemental phosphorus
example
form
form gaseous
gaseous
gaseous phase
gaseous reactant
gaseous reactants
lead
particularly
particularly suitable
pb
pbo
pcl
phase
phosphorus
phosphorus compounds
pocl
preparation
prepared
process
product
purity
purity phosphorus
radiophosphorus
reactants
reacted
reacting
recovered
reduced
solid
sufficient
suitable
temperature
temperature sufficient