Controlled production of ammonia and other gases
First Claim
1. A method for the generation of ammonia, comprising:
- (a) providing an ammoniated metal salt having the formula
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Accused Products
Abstract
Improved methods for the controlled generation of ammonia from an ammoniated metal salt at substantially ambient temperature by applying microwave energy to the salt. The ammoniated salts have the formula MAn.X(NH3), wherein M is at least one metal selected from the group consisting of alkali metals, alkaline earth metals, scandium, ytterbium, the lanthanides, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, zinc, cadmium, mercury, tin, and aluminum; A is at least one ion selected from the group consisting Cl−, Br−, F−, I−, ClO3−, ClO4−, BF4−, AlCl4−, PF6−, SbCl6−, and SbF6−; and SbF6− n is from 1 to 6; and X is from 1 to 8. The methods are useful in, inter alia, absorption type refrigeration systems where ammonia is used as a refrigerant and the salt is used as a sorbent bed.
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Citations
33 Claims
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1. A method for the generation of ammonia, comprising:
(a) providing an ammoniated metal salt having the formula - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 32, 33)
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13. A method for cooling, comprising:
-
(a) adsorbing ammonia onto a metal salt to provide a corresponding ammoniated metal salt;
(b) desorbing ammonia from said anmoniated metal salt by applying microwave energy thereto, wherein applying microwave energy does not substantially increase a temperature of said ammoniated metal salt; and
(c) circulating said desorbed ammonia through a refrigeration sorption system to produce said cooling. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
M is at least one metal selected from the group consisting of alkali metals, alkaline earth metals, scandium, ytterbium, the lanthanides, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, zinc, cadmium, mercury, tin, and aluminum;
A is at least one ion selected from the group consisting of Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
;
n is from 1 to 6; and
X is from 1 to 8.
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17. The method of claim 16 wherein:
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M is at least one of copper, silver, and gold;
A is at least one Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 1.
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18. The method of claim 16 wherein:
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M is at least one of chromium, manganese, iron, cobalt, nickel, palladium, platinum, copper, zinc, cadmium, and mercury;
A is at least one of Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 2.
-
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19. The method of claim 16 wherein:
-
M is at least one of scandium, ytterbium, the lanthanides, chromium, molybdenum, tungsten, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, and iridium;
A is at least one Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 3.
-
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20. The method of claim 16 wherein:
-
M is at least one of titanium, zirconium, hafnium, vanadium, niobium, molybdenum, tungsten, and osmium;
A is at least one ion of Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 4.
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21. The method of claim 16 wherein:
-
M is at least one of niobium, tantalum, tungsten, and molybdenum;
A is at least one of Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 5.
-
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22. The method of claim 16 wherein:
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M is tungsten;
A is at least one of Cl−
, Br−
, F−
, I−
, ClO3−
, ClO4−
, BF4−
, AlCl4−
, PF6−
, SbCl6−
, and SbF6−
; and
n is 6.
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23. The method of claim 16 wherein M is at least one of alkaline earth metals, chromium, manganese, iron, cobalt, nickel, cadmium, zinc, tantalum, rhenium, sodium, potassium, cesium, aluminum, and copper, and A is Cl−
- or Br−
.
- or Br−
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24. The method of claim 16 wherein M is at least one of chromium, manganese, iron, cobalt, nickel, cadmium, zinc, tantalum or rhenium, and A is Cl−
- or Br−
.
- or Br−
-
25. The method of claim 16 wherein MAn is one of NaAlCl4, KalCl4, K2ZnCl4, K2FeCl5, or CsCuCl3.
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26. The method of claim 16 wherein M is a alkali metal or an alkaline earth metal, A is Cl−
- or Br−
, and n is 1 or 2.
- or Br−
-
27. A method of claim 16 where said ammoniated metal salt is a chloride or bromide of strontium.
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28. A method for cooling, comprising:
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(a) a desorbing ammonia onto a zeolite to provide a corresponding ammoniated zeolite;
(b) desorbing ammonia from said ammoniated zeolite by applying microwave energy thereto for a time sufficient to produce said ammonia, wherein applying microwave energy does not substantially increase a temperature of said ammoniated zeolite; and
(c) circulating said desorbed ammonia through a refrigeration sorption system to produce said cooling.
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29. A method for the generation of phosphine or arsine, comprising:
(a) providing a ligated metal salt having the formula - View Dependent Claims (30, 31)
Specification