Manufacture of peroxidic compositions
Patent 5429812 Issued on July 4, 1995. Estimated Expiration Date: 
June 8, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 8, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2926998 3900337 Apparatus for generating an oxidizing reagent for the treatment of polluted water Process for the generation of peroxyacids Patent #: 5141731 InventorsAssigneeApplicationNo. 070376 filed on 06/08/1993US Classes:423/521Ternary compound containing hydrogenExaminersPrimary: Langel, Wayne A.Attorney, Agent or FirmForeign Patent References
International ClassC01B 017/98AbstractProduction of peroxomonosulphuric acid (Caro's acid) by reaction between concentrated hydrogen peroxide and sulphuric acid solutions can be impaired substantially when substoichiometric amounts of sulphuric acid are employed.The problem is ameliorated or removed by first forming a body of sulphuric acid-rich fluid (usually the smaller volume) and thereafter introducing into that body of fluid the hydrogen peroxide solution (usually the larger volume). The reaction mixture progressively becomes sulphuric acid-lean. The body of fluid is advantageously either concentrated sulphuric acid itself, or a premix formed by reaction between hydrogen peroxide and at least an equimolar amount of sulphuric acid. The process is particularly suitable for making Caro's acid when from 0.02 to 0.5 moles of sulphuric acid is employed per mole of hydrogen peroxide.Field of SearchTernary compound containing hydrogen |
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