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Kerr-McGee Pigments GmbH
| Kerr-McGee Pigments GmbH Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20120137934 | REDUCING AGENT FOR THE SOLUBLE CHROMATE CONTENT OF CEMENT AND METHODS FOR PRODUCTION THEREOF - The invention relates to a reducing agent for the soluble chromate content of cement and to methods for the production thereof, which comprise concentrating an used sulfuric acid, containing iron (II) sulfate, and separating the sulfuric acid from the obtained precipitate which contains iron (II) sulfate. | 06-07-2012 |