Chemistry - Freedom to Operate (Sample Report)
Features to Search
E1: A process for treating a water stream comprising: feeding a water stream through a desalination process to produce a by-product stream, the by-product stream containing dissolved calcium ions and sulfate ions.
E2: Contacting the by-product stream with a cation-removal device and an anion-removal device to remove a substantial portion of the calcium ions and the sulfate ions, the calcium ions passing into a first salt stream, the sulfate ions passing into a second salt stream, the first salt stream containing chlorine ions, the second salt stream containing sodium ions;
E3: Separately feeding the first salt stream and the second salt stream to a calcium sulfate precipitation chamber for precipitating calcium sulfate. Collecting the precipitated calcium sulfate.
Search Strategy
Database: AcclaimIP, USPTO, Patentscope, Espacenet, Google Patents.
Keywords:
| Set1 | Desalination, Removal of salt from Water, Water Treatment |
| Set2 | Salt, Sodium Chloride, Sodium Ions, Chloride Ions |
| Set3 | By product stream, Dissolved calcium ions, Dissolved sulphate ions |
US Classification Codes with definitions
210/702: Making an insoluble substance or accreting suspended constituents
210/638: Including ion exchange or other chemical reaction
204/529: Metal or metal salt recovered or removed
