Nitro Containing (including Aci Forms) Patents (Class 568/924)
With preservative or stabilizer (Class 568/925)
Nitronic acid or group ia or iia light metal containing (e.g., aci forms, etc.) (Class 568/926)
Benzene ring containing (Class 568/927)
Polycyclo-alicyclic ring system (Class 568/941)
Six-membered alicyclic ring containing (Class 568/942)
Acyclic (Class 568/943)
  • Recovery of nitrated aromatic compounds from nitration wash liquors
    Patent number: 4241229
    Abstract: The wash liquor resulting from the nitration of aromatic compounds is contacted with a quantity of the same aromatic compound being nitrated and the resultant solution is recycled to the nitration process.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: December 23, 1980
    Assignee: American Cyanamid Company
    Inventor: Verner Alexanderson