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U H T Umwelt und Hygienetechnik GmbH Patents |
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Assignee: U H T Umwelt und Hygienetechnik GmbH
Address: Bielefeld, DE
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4747975 |
Method of dissolving, and solvents for, difficult to dissolve carbonates |
May 31, 1988 |
| A method of dissolving either a precipitate or deposit that contains essentially calcium carbonate comprising contacting the precipitate or deposit with a mixture comprising a first acid, the first acid being a Lewis acid in a concentration of 10 to 1000 mmoles/l, and a second acid, |
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