Continuous preparation of nitrosyl fluoride
AssigneeMallinckrodt Inc.
InventorsNickolas J. Stepaniuk, Bruce J. Lamb
Life of this patent
Estimating the term…
Abstract
A process and apparatus for the continuous production of nitrosyl fluoride from nitrite and hydrogen fluoride. Nitrite solids and hydrogen fluoride are separately introduced and blended into nitrosyl fluoride so as to form a reaction mixture within which the nitrite and the hydrogen fluoride react to produce additional nitrosyl fluoride. The hydrogen fluoride is introduced into the reaction mixture spaced away from where the nitrite is introduced into the reaction mixture so that the hydrogen fluoride and the nitrite separately mix into the nitrosyl fluoride and are diluted therein before mixing with each other, thereby avoiding a violent reaction between the hydrogen fluoride and the nitrite.
Claims18
A process for the preparation of nitrosyl fluoride, comprising separately introducing and blending nitrite and hydrogen fluoride into nitrosyl fluoride solution so as to form a reaction mixture within which the nitrite and the hydrogen fluoride react so as to produce additional nitrosyl fluoride, and removing nitrosyl fluoride produced in the reaction mixture, wherein the reaction mixture is maintained at a substantially constant volume during the introducing and removing steps, and wherein said hydrogen fluoride is introduced into said reaction mixture spaced away from where said nitrite is introduced into said reaction mixture so that the hydrogen fluoride and the nitrite independently mix into said nitrosyl fluoride solution and are diluted therein before mixing with each other, thereby avoiding a violent reaction between the hydrogen fluoride and the nitrite.
The process of claim wherein the nitrite and hydrogen fluoride are cyclically and simultaneously introduced into said reaction mixture spaced apart.
A process for the continuous preparation of nitrosyl fluoride, comprising continuously and separately introducing and blending nitrite and hydrogen fluoride into nitrosyl fluoride solution so as to form a reaction mixture within which the nitrite and the hydrogen fluoride react to produce additional nitrosyl fluoride, and removing nitrosyl fluoride produced in the reaction mixture, wherein said hydrogen fluoride is introduced into said reaction mixture spaced away from where said nitrite is introduced into said reaction mixture so that the hydrogen fluoride and the nitrite independently mix into said nitrosyl fluoride and are diluted therein before mixing with each other, thereby avoiding a violent reaction between the hydrogen fluoride and the nitrite.
Dependencies are inferred from the claim text.