TH28939B - Process for stabilizing ammonium nitrate - Google Patents

Abstract

DC60 (29/03/44) This invention Relates to methods for producing thermally stable and mechanically stable ammonium nitrate by silicating of 1-3 percent net metal in nitric acid. before reaction with ammonia Ammonium nitrate granules produced by this method swell very little. These granules do not clump much. and the pellet strength of these materials is high this invention Relates to methods for producing heat stable ammonium nitrate. and mechanical stability by silicate 1-3 percent metal mesh in nitric acid before reaction with ammonia. Ammonium nitrate granules produced by this method swell very little. These granules do not clump much. and the pellet strength of these materials is high

Claims (9)

1.Method for producing ammonium nitrate Which are heat stable pellets And mechanical stability Which are unique to (a) 1-3 percent of the ligate metal by weight. Of the product, ammonium nitrate was dissolved in fluids containing mainly nitric acid. (b) a solution composed mainly of nitric acid And silicate of the metal that has been treated with ammonia. In order to make ammonium nitrate thick dispersion and to neutralize the solution. (c) The ammonium nitrate thick dispersant was dried. And granulate 2. The methods set out in claim 1, which are unique at Propose the silicate of the reticular metal to be biotite, or floopite, or a mixture of these substances. Which is most especially proposed to be the Flokopite 3. The method defined in claim 2, which is characterized by that floopite or biotite is pure. Or there is a waste of increased concentration as an impurity That could be calcite and / or dolomites 4. The methods set out in claim 1, which are unique at Silicates of crystallized metals dissolved in pure nitric acid. Or proposed is in nitric acid, where 1-2% by weight of concentrated sulfuric acid is added. 5. Method as set out in Clause 1-4, any one Which is unique to the silicate of the reticular metal Were melted at 40-70 ° C with the proposed 50-70 ° C 6.Method as set out in Claims 1-5. Which is unique in its reaction with ammonium It has been performed at temperatures of 110 - 170 degrees Celsius with the proposed 110 - 150 degrees Celsius. 7.Method as set out in Clause 1-6, any one Which is unique in that in the ammonium reaction, the pH was adjusted up to 5.0 -7.0 8.Ammonia nitrate Stable to heat And mechanical stability Which are unique to This substance has been produced by the method described in either Clause 1-7. 9. Thermo-stable and mechanical-stable ammonium nitrate as defined in claim 8, which is characterized by the total nitrogen content in the range of 32 - 34.5%, with the proposed 33 - 34%.