Desalting aqueous salt solutions by the formation of hydrocarbon hydrates and the purification thereof
First Claim
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1. A PROCESS FOR THE PRODUCTIONOF SUBSTANTIALLY SALT FREE WATER FROM AQUEOUS SALT SOLUTIONS WHICH COMPRISES CONTACTING A HYDRATE FORMING MATERIAL WITH AN AQUEOUS SALT SOLUTION UNDER CONDITIONS SUITABLE FOR THE FORMATION OF HYDRATES TO FORM HYDRATES, DECOMPOSING A PORTION OF SAID HYDRATES TO FORM A MELT COMPRISING WATER AND SAID HYDRATE FORMING MATERIAL, CONTACTING AT LEAST A PORTION OF SAID MELT INTERMITTENTLY AND COUNTERCURRENTLY WITH SAID HYDRATES AND FORMING HYDRATE CRYSTALS OF INCREASED PURITY THEREBY REMOVING IMPURITIES THEREFROM, REMOVING MELT AND DECOMPOSING SAID HYDRATE CRYSTALS TO YIELD A SUBSTANTIALLY SALT FREE WATER PRODUCT.
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1 Claim
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1. A PROCESS FOR THE PRODUCTIONOF SUBSTANTIALLY SALT FREE WATER FROM AQUEOUS SALT SOLUTIONS WHICH COMPRISES CONTACTING A HYDRATE FORMING MATERIAL WITH AN AQUEOUS SALT SOLUTION UNDER CONDITIONS SUITABLE FOR THE FORMATION OF HYDRATES TO FORM HYDRATES, DECOMPOSING A PORTION OF SAID HYDRATES TO FORM A MELT COMPRISING WATER AND SAID HYDRATE FORMING MATERIAL, CONTACTING AT LEAST A PORTION OF SAID MELT INTERMITTENTLY AND COUNTERCURRENTLY WITH SAID HYDRATES AND FORMING HYDRATE CRYSTALS OF INCREASED PURITY THEREBY REMOVING IMPURITIES THEREFROM, REMOVING MELT AND DECOMPOSING SAID HYDRATE CRYSTALS TO YIELD A SUBSTANTIALLY SALT FREE WATER PRODUCT.
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Current AssigneeJohn E. Cottle
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Original AssigneeJohn E. Cottle
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InventorsCottle, John E.
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Application NumberUS04/045,715Time in Patent Office1,280 DaysField of SearchUS Class Current210/711CPC Class CodesC02F 1/26 by extraction
