Process for the production of guanidine nitrate from urea...

C - Chemistry – Metallurgy – 07 – C

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260/544.1

C07C 279/02 (2006.01) C07C 277/00 (2006.01)

Patent

CA 1294980

ABSTRACT Process for the production of guanidine nitrate from urea and ammonium nitrate The present invention provides a process for the production of guanidine nitrate by the reaction of urea and excess ammonium nitrate in the presence of a silicon dioxide catalyst at an elevated temperature, wherein the molten reaction mixture containing the dispersed catalyst is passed in a cycle, a branch current of the reaction mixture is continuously separated off by filtration in such a manner that the catalyst remains in circulation and consumed urea and ammonium nitrate are supplemented corresponding to the removal of the product.

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