OF THE DISCLOSURE\nThe invention provides integrated continuous\nprocesses for concentrating "weak" nitric acid and\nconcurrently reconcentrating the spent dehydrating agent\nused to break the nitric acid azeotrope to obtain\n"strong" nitric acid, the processes involving direct\ncoupling of the nitric...
Physical propertiesColorless liquid; highly corrosive; refractive index 1.397 at 16.5°C; density 1.503 g/L; freezes at –42°C; boils at 83°C; completely miscible with water; forms a constant boiling azeotrope with water at 68.8 wt% nitric acid; the azeotrope has density 1.41 g/mL and bo...
(298.1 K): -7971 cal/mole. Forms an azeotrope with water, so-called constant boiling acid at 68% HNO3, bp 120.5°, d4201.41. Develops yellow color in the presence of light due to nitrogen oxide formation. Stains woolen fabrics and animal tissue a bright yellow. Reacts violently with ...
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process for recovery of nitric acidA method for recovering nitric acid solutions and ferric oxide from acidic solutions of ferric nitrate, including the steps of adjusting the nitric acid concentration to the nitric acid-water azeotrope and distilling the solution under such azeotropic conditions....
Davegardh C A R,Wetterholm G A.Method in the revovery of trinitro-methane(nitroform) from a mixture of trinitromethane,nitric acid and water:US,3880941[P].1975.Davegardh C A R,Wetterholm G A. Method in the revovery of trinitro-methane(nitroform) from a mixture of trinitromethane,...
OF THE DISCLOSURE\nThe invention provides integrated continuous\nprocesses for concentrating "weak" nitric acid and\nconcurrently reconcentrating the spent dehydrating agent\nused to break the nitric acid azeotrope to obtain\n"strong" nitric acid, the processes involving direct\ncoupling of the nitric...
method, a nitric acid with a concentration of approximately 45 to 70 % is rectified in contact with a liquid extraction agent in order to prevent the formation of a nitric acid-water-azeotrope, the vapors of the concentrated nitric acid are condensed and a concentrated nitric acid is obtained...
Nitric acid-waterStable isotope fractionationMixtures of water and inorganic acids show differences in isotopic composition between the vapor and liquid phases, reportedly even at an azeotrope. A recent reactive azeotropy analysis rationalized this by allowing for differences in stable isotope composition ...
Nitric AcidOcean Thermal Energy ConversionSea WaterAzeotropesBinary FluidsColumns (Process EngineeringDistillation EquipmentEnergy TechnologyWaterA process for recovering thermal energy from a low-level heat source has been devised. The process utilises the heat generated when nitric acid and water are ...