The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Jun. 28, 2004
Perry L. Martin, Yuba City, CA (US);
Perry L. Martin, Yuba City, CA (US);
TruOx, Inc., McClellan, CA (US);
Abstract
A method of preparing a potassium monopersulfate composition is presented, wherein the potassium monopersulfate composition has the formula (KHSO)(KHSO)(KSO), where x+y+z=1 and x=0.46–0.64, y=0.15–0.37, and z=0.15–0.37, said potassium monopersulfate composition having an active oxygen content greater than or equal to 4.9 wt. % and KSOat a concentration of <0.5 wt. % of the potassium monopersulfate composition. The method includes reacting an HOsolution containing at least 70 wt. % HOwith a HSOsolution at a substoichiometric ratio of the HSOto HOto generate a weak Caro's acid solution, then combining the weak Caro's acid solution with oleum to produce a rich Caro's acid solution. The rich Caro's acid solution may be combined with an alkali potassium compound to produce the potassium monopersulfate composition. During the process, the temperature is maintained at below 30 ° C.