Research/Patents/US 5714714
US 5714714Tier 3 — General Defense

PROCESS FOR PREPARING AMMONIUM DINITRAMIDE

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE NAVY

Filed

Oct 15, 1992

Granted

Feb 3, 1998

Location

Arlington VA (defense contractors)

Abstract

A process for preparing ammonium dinitramide by: (1) nitrating either ethyl carbamate or methyl carbamate to form the corronding mononitrate compound, ethyl N-nitrocarbamate or methyl N-nitrocarbamate; (2) reacting the N-nitrocarbamate with ammonia under anhydrous conditions to produce the corresponding ammonium salt, ammonium ethyl N-nitrocarbamate or ammonium methyl N-nitrocarbamate; (3) nitrating the ammonium salt and then treating the reaction mixture with ammonia to produce ammonium dinitramide, ammonium nitrate, and regenerate the original ethyl carbamate or methyl carbamate compound.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 8, 1993

Rescinded

Feb 18, 1997

Duration

4 years

Inventor

  • 1ALFRED G. STERN

Sensitive facility: Arlington VA (defense contractors)

Back to patent indexSource: USPTO 35 USC §181 secrecy order records