| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 07.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method of extracting CaCO3 from aq mixt of said sludge, comprising solid & liquid phases - Combining mixt with acid to solubilize all Ca - Incubating mixt - Sepn Ca contg liquid fraction - Recovering Ca salt from fraction |
| PATENT PHOTOCOPY | Available on request |
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