C01F 5/10

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9550712 Acid/salt separationAug 16, 12Jan 24, 17PURAC BIOCHEM BV
9422217 Carboxylic acid recovery from magnesium carboxylate mixtureMay 23, 13Aug 23, 16PURAC BIOCHEM BV
9382600 Processes for preparing alumina and various other productsSep 17, 12Jul 05, 16ORBITE TECHNOLOGIES INC.
9376364 Acid/salt separationAug 16, 12Jun 28, 16PURAC BIOCHEM BV
9353425 Processes for preparing alumina and magnesium chloride by HCl leaching of various materialsSep 26, 13May 31, 16ORBITE TECHNOLOGIES INC.
9181603 Processes for treating fly ashesMar 11, 13Nov 10, 15ORBITE TECHNOLOGIES INC.
9061986 Acid/salt separationAug 16, 12Jun 23, 15PURAC BIOCHEM BV
4944928 Process for producing pure magnesium oxideFeb 27, 89Jul 31, 90VEITSCHER MAGNESITWERKE-ACTIEN-GESELLSCHAFT
4734272 Phospho-gypsum recovery processAug 25, 86Mar 29, 88Not available
4608238 Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acidJul 27, 84Aug 26, 86Not available
4425314 Method for the manufacture of metal oxide and hydrochloric acid from metal chlorideSep 09, 81Jan 10, 84FIRMA GATTYS TECHNIQUE S.A., CHEMIN RITTER 3, FRIBOURG, SWITZERLAND
4415543 Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acidJan 25, 82Nov 15, 83Not available
4312842 Process of manufacture of phosphoric acid with recovery of co-productsFeb 12, 80Jan 26, 82Not available
4255399 Process for the recovery of magnesium oxide of high purityMay 08, 79Mar 10, 81VEITSCHER MAGNESITWERKE-ACTIEN-GESELLSCHAFT