US5387359A
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Alkaline earth metal potassium acetate, a process for its preparation and its use
Assignee: Hoechst AG
•
Filing: 1993-12-02
•
Granted: 1995-02-07
•
Expires: 2013-12-02
Abstract
Abstract The alkaline earth metal potassium acetate according to the invention comprises 14 to 19 % by weight of calcium (Ca++), 0 to 1% by weight of magnesium (Mg++), 11 to 16 % by weight of potassium (K+), 62 to 71% by weight of acetate (CH3COO-), 0 to 7 % by weight of water and 0 to 2 % by weight of water-insoluble components For its preparation, a calcium oxide containing at least 85% of CaO, acetic acid and potassium hydroxide solution are reacted with one another and the reaction product is granulated to give particles of 0.5 to 5 mm. The alkaline earth metal potassium acetate according to the invention can be used as an environment-friendly deicing agent causing little corrosion.
Inventors
- 👤 Johannes Himmrich
- 👤 Gunther Schimmel
- 👤 Klaus Pollmannn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:33
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
An alkaline earth metal potassium acetate, consisting essentially of 14 to 19% by weight of calcium (Ca ++ ), 0 to 1% by weight of magnesium (Mg ++ ), 11 to 16% by weight of potassium (K + ), 62 to 71% by weight of acetate (CH 3 COO - ), 0 to 7% by weight of water; said alkaline earth metal potassium acetate having the following X-ray diffraction pattern: ______________________________________
d/A Intensity d/A Intensity
______________________________________
13.95 +- 0.03
.sup. mw 3.33 +- 0.04
.sup. vs
11.45 +- 0.30
.sup. ms 3.26 +- 0.04
.sup. vs
10.88 +- 0.30
.sup. vs 3.21 +- 0.04
m
7.13 +- 0.10
w 3.05 +- 0.03
m
6.65 +- 0.10
w 2.83 +- 0.03
.sup. mw
5.68 +- 0.08
.sup. mw 2.75 +- 0.03
.sup. mw
5.56 +- 0.08
.sup. mw 2.42 +- 0.02
s
4.22 +- 0.06
w 2.17 +- 0.02
.sup. mw
4.02 +- 0.06
w 2.05 +- 0.02
.sup. mw
3.57 +- 0.04
m
______________________________________
vs = very strong
s = strong
ms = mediumstrong
m = medium
mw = mediumweak
w = weak.
Claim 2
Dependent Claim
183 words
An alkaline earth metal potassium acetate, consisting essentially of 14 to 19% by weight of calcium (Ca ++ ), 0 to 1% by weight of magnesium (Mg ++ ), 11 to 16% by weight of potassium (K + ), 62 to 71% by weight of acetate (CH 3 COO - ), 0 to 7% by weight of water; said alkaline earth metal potassium acetate having the following X-ray diffraction pattern: ______________________________________
d/A Intensity d/A Intensity
______________________________________
13.95 +- 0.03
.sup. mw 3.33 +- 0.04
.sup. vs
11.45 +- 0.30
.sup. ms 3.26 +- 0.04
.sup. vs
10.88 +- 0.30
.sup. vs 3.21 +- 0.04
m
7.13 +- 0.10
w 3.05 +- 0.03
m
6.65 +- 0.10
w 2.83 +- 0.03
.sup. mw
5.68 +- 0.08
.sup. mw 2.75 +- 0.03
.sup. mw
5.56 +- 0.08
.sup. mw 2.42 +- 0.02
s
4.22 +- 0.06
w 2.17 +- 0.02
.sup. mw
4.02 +- 0.06
w 2.05 +- 0.02
.sup. mw
3.57 +- 0.04
m
______________________________________
vs = very strong
s = strong
ms = mediumstrong
m = medium
mw = mediumweak
w = weak.
Claim 3
Dependent Claim
218 words
A deicing agent causing little corrosion comprising a mixture of a) up to 50% by weight of carboxylates having 1 to 4 carbon atoms with cations selected from alkali metals and alkaline earth metals, and b) an alkaline earth metal potassium acetate consisting essentially of 14to 19% by weight of calcium (Ca ++ ), 0 to 1% by weight of magnesium (Mg ++ ), 11 to 16% by weight of potassium (K + ), 62 to 71% by weight of acetate (CH 3 COO - ), 0 to 7% by weight of water; said alkaline earth metal potassium acetate having the following X-ray diffraction pattern: ______________________________________
d/A Intensity d/A Intensity
______________________________________
13.95 +- 0.03
.sup. mw 3.33 +- 0.04
.sup. vs
11.45 +- 0.30
.sup. ms 3.26 +- 0.04
.sup. vs
10.88 +- 0.30
.sup. vs 3.21 +- 0.04
m
7.13 +- 0.10
w 3.05 +- 0.03
m
6.65 +- 0.10
w 2.83 +- 0.03
.sup. mw
5.68 +- 0.08
.sup. mw 2.75 +- 0.03
.sup. mw
5.56 +- 0.08
.sup. mw 2.42 +- 0.02
s
4.22 +- 0.06
w 2.17 +- 0.02
.sup. mw
4.02 +- 0.06
w 2.05 +- 0.02
.sup. mw
3.57 +- 0.04
m
______________________________________
vs = very strong
s = strong
ms = mediumstrong
m = medium
mw = mediumweak
w = weak.
Claim 4
Dependent Claim
218 words
A deicing agent causing little corrosion comprising a mixture of a) up to 50% by weight of carboxylates having 1 to 4 carbon atoms with cations selected from alkali metals and alkaline earth metals, and b) an alkaline earth metal potassium acetate consisting essentially of 14to 19% by weight of calcium (Ca ++ ), 0 to 1% by weight of magnesium (Mg ++ ), 11 to 16% by weight of potassium (K + ), 62 to 71% by weight of acetate (CH 3 COO - ), 0 to 7% by weight of water; said alkaline earth metal potassium acetate having the following X-ray diffraction pattern: ______________________________________
d/A Intensity d/A Intensity
______________________________________
13.95 +- 0.03
.sup. mw 3.33 +- 0.04
.sup. vs
11.45 +- 0.30
.sup. ms 3.26 +- 0.04
.sup. vs
10.88 +- 0.30
.sup. vs 3.21 +- 0.04
m
7.13 +- 0.10
w 3.05 +- 0.03
m
6.65 +- 0.10
w 2.83 +- 0.03
.sup. mw
5.68 +- 0.08
.sup. mw 2.75 +- 0.03
.sup. mw
5.56 +- 0.08
.sup. mw 2.42 +- 0.02
s
4.22 +- 0.06
w 2.17 +- 0.02
.sup. mw
4.02 +- 0.06
w 2.05 +- 0.02
.sup. mw
3.57 +- 0.04
m
______________________________________
vs = very strong
s = strong
ms = mediumstrong
m = medium
mw = mediumweak
w = weak.
References Cited (Backward Citations)
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US4425251A
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WO1988005456A1
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US4855071A
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WO1992017557A1
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US5219483A
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