| Patent Number |
Title Of Patent |
Date Issued |
| 4312852 |
Nitric acid reconstitution |
January 26, 1982 |
| There is described a process for the reconstitution of NO.sub.X gases produced by the thermal decomposition of metal nitrates to nitric acid comprising the steps of:1. contacting the NO.sub.X gases in counter-current relationship in one or more packed columns with cooled 50 to 60 percent |
| 4256714 |
Basic aluminum nitrate crystallization |
March 17, 1981 |
| There is described a process for preparing large crystals of basic aluminum nitrate (BAN) from a nitric acid feed solution containing Al.sub.2 O.sub.3 values comprising the steps of:(1) evaporating water and nitric acid from the solution in a single step evaporation performed at a temper |
| 4246239 |
Alumina production by nitric acid extraction of clay |
January 20, 1981 |
| Alumina values are extracted from clay by the steps of pelletizing into spherical particles, calcining the pellets in a fluidized bed reactor, extracting the clay in about 30-40% nitric acid, purifying the basic aluminum nitrate produced, crystallizing aluminum nitrate nonahydrate, d |
| 4223000 |
Decomposition of aluminum nitrate |
September 16, 1980 |
| There is described a method for the decomposition of aluminum nitrate crystals to alumina comprising the steps of:(a) melting the aluminum nitrate crystals;(b) evaporating from the melted crystals in a once through evaporator at the boiling temperature of the mixture and for a time sufficien |
