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US 7,402,553 B1Granted
Method for preparing a buffered acid composition
OwnerStephen C. Perryinventor
Life of this patent
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Abstract
A buffered acid composition created by the combination of liquid ammonia and an acid and a method for making the composition. The buffered acid composition is for use as a cleaning agent and for balancing the pH of a fluid.
Claims7
A method for preparing a buffered acid composition, said method comprising the following steps:
- (1) at a temperature in the range of 140 to 335 degrees Celsius, mixing and heating an acid while slowly introducing liquid ammonia to form a buffered acid composition;
- (2) placing the buffered acid composition under vacuum at a pressure of 15 to 25 inches of mercury while maintaining a temperature in the range of water 140 to 335 degrees Celsius;
- (3) placing the buffered acid composition under vacuum at a pressure of 25 to 35 inches of mercury while maintaining a temperature in the range of 140 to 335 degrees Celsius;
- and
- (4) cooling the buffered acid composition.
2 more elements
Dependencies are inferred from the claim text.