Solutions formed from ammonium carbonate/bicarbonate and ammonium hydroxide

Patent metadata

Field	Value
Publication number	US-2020398233-A1
Application number	US-202016904624-A
Country	US
Kind code	A1
Filing date	Jun 18, 2020
Priority date	Jun 19, 2019
Publication date	Dec 24, 2020
Grant date	—

Abstract

Solutions formed from ammonium carbonate and/or bicarbonate and ammonium hydroxide are disclosed. An amount of ammonium carbonate or bicarbonate is added to water with mixing. Furthermore, an amount of ammonium hydroxide is added to the water with mixing. Optionally, and amount of sodium hydroxide is added to the water with mixing. The ammonium carbonate or bicarbonate, the ammonium hydroxide, and the optional sodium hydroxide may be added to the water in any order. The solutions are useful in a variety of applications including formation of biocides and synthesis of urea.

First claim

What is claimed is:

1 . A method for forming an equilibrated solution that includes ammonium carbamate, the method comprising the steps of:
adding an amount of ammonium carbonate to water with mixing; and adding an amount of ammonium hydroxide to the water with mixing.

2 . The method of claim 1 , further comprising:
adding an amount of sodium hydroxide to the water with mixing.

3 . The method of claim 2 , wherein:
a weight ratio of ammonium hydroxide to sodium hydroxide is about 1:1 to about 1:10.

4 . The method of claim 1 , wherein:
a weight ratio of ammonium hydroxide to water is about 1:2 to about 1:20.

5 . The method of claim 1 , wherein
a weight ratio of ammonium hydroxide to ammonium carbonate is about 1:1 to about 1:10.

6 . A method for forming an equilibrated solution that includes ammonium carbamate, the method comprising the steps of:
adding an amount of ammonium bicarbonate to water with mixing; and adding an amount of ammonium hydroxide to the water with mixing.

7 . The method of claim 6 , further comprising:
adding an amount of sodium hydroxide to the water with mixing.

8 . The method of claim 7 , wherein:
a weight ratio of ammonium hydroxide to sodium hydroxide is about 1:1 to about 1:10.

9 . The method of claim 6 , wherein:
a weight ratio of ammonium hydroxide to water is about 1:2 to about 1:20.

10 . The method of claim 6 , wherein
a weight ratio of ammonium hydroxide to ammonium bicarbonate is about 1:0.5 to about 1:5

Assignees

• Solenis Tech Lp

Inventors

• Carey William S

Classifications

• C01C1/26 Primary

  Carbonates or bicarbonates of ammonium · CPC title

• B01F23/511 Primary

  characterised by the composition of the liquids or solids · CPC title

• C01B21/12 Primary

  Carbamic acid {or thiocarbamic acid}; Salts thereof · CPC title

• B01F3/1214 Primary

  Operations & Transport · mapped topic