Process for preparing prilled porous ammonium nitrate
CA 1064677 A · Owner: Mitsubishi Chemical Industries Limited · Inventors: Shimizu, Hiroshi; Kimura, Kazumi; Kozima, Katsumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.
Abstract From the Canadian patent
This invention discloses a prilled ammonium nitrate containing 2 to 5% by weight water which is obtained by prilling an aqueous solution of 93 to 98% by weight ammonium nitrate. The nitrate is dried by lowering the drying temperature of the ammonium nitrate to a temperature less than the III-IV crystalline transition temperature of ammonium nitrate at least once when the water content of the prilled ammonium nitrate is 0.3 to 1.5% by weight in the drying step. It is then further dried at a temperature higher than the III-IV transition temperature. An anti-caking agent may be added to the dried prilled ammonium nitrate. The product thus obtained is particularly useful as an ammonium nitrate …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents.
Why it's free to use
- Granted October 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 23, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.