Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Process for obtaining nitric acid of a concentration higher than the azeotropic concentration by means of the absorption of nitrogen oxides in water or diluted nitric acid










Image Number 2 for United States Patent #4064221.

The present invention relates to a process for obtaining nitric acid of a concentration higher than the azeotropic concentration by means of the absorption of nitrogen oxides in water or diluted nitric acid and the partial pressure of the nitrogen oxides before absorption is raised partly by compression of the gases that contain the nitrous gases and partly by means of a cycle of diluted nitric acid which is decomposed by the action of the NO contained in the gases, enriching them in NO.sub.2 and which subsequently reform by absorption of NO.sub.2 in water when the partial pressure of the nitrogen oxides is low.








 
 
  Recently Added Patents
Bio-stimulant for improved plant growth and development
Changing sound alerts during a messaging session
Verification of a portable consumer device in an offline environment
Method and apparatus for wireless communication in a mesh network with central control of communication relationships
White light emitting lamp and white LED lighting apparatus including the same
Compositions of PD-1 antagonists and methods of use
Process and intermediates for preparing lapatinib
  Randomly Featured Patents
Shunt valve system
Vehicle seat
Process for preparation of a polymer having reactive terminal group
Wearable computing, input, and display device
Display assembly
Fabric treatment compositions comprising organically modified particles
Electrically-operated tacker
Advanced multi-network client device for wideband multimedia access to private and public wireless networks
Medical materials and process for producing the same
Eyewear with translucent superior field of view