Accession Number : ADD006868

Title :   Process for the Preparation of 1,3,5-Trifluoro-2,4,6-Trinitrobenzene.

Descriptive Note : Patent,


Personal Author(s) : Koppes,William M ; Adolph,Horst G ; Sitzmann,Michael E

Report Date : 06 Nov 1979

Pagination or Media Count : 3

Abstract : A process for producing 1,3,5-trifluoro-2,4,6-trinitrobenzene by: (1) forming a mixture of fuming sulfuric acid and potassium nitrate wherein the fuming sulfuric acid is composed of at least 25 percent by weight sulfur trioxide, and wherein the molar ratio of fuming sulfuric acid to potassium nitrate is from about 2:1 to about 3:1; (2) adding 1,3,5-trifluorobenzene to the mixture until the molar ratio of potassium nitrate to 1,3,5-trifluorobenzene is from 6:1 to 10:1, the temperature of the mixture being maintained in the range of from about 30 degrees C. to about 50 degrees C. during the addition; (3) then raising the temperature of the mixture into the range of from about 140 degrees C. to about 160 degrees C. where it is maintained until the optimum yield of 1,3,5-trifluoro-2,4,6-trinitrobenzene has been obtained; and (4) isolating the product, 1,3,5-trifluoro-2,4,6-trinitrobenzene from the reaction mixture. (Author)

Descriptors :   *Patents, *Synthesis(Chemistry), *Reaction kinetics, *Nitrobenzenes, *Fluorinated hydrocarbons, Nitrates, Sulfuric acid, Mixtures, Potassium compounds, Ratios, Optimization, Inventions, Production

Subject Categories : Industrial Chemistry and Chemical Processing
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE