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:
Sep. 05, 2006
Filed:
Aug. 10, 2004
Raymond J. Wong, Norman, OK (US);
Raymond J. Wong, Norman, OK (US);
Renal Solutions, Inc., Warrendale, PA (US);
Abstract
Methods of making zirconium basic carbonate are further described which involve titrating an aqueous slurry of sodium zirconium carbonate to a pH of from about 3.5 to about 4.0 with an acidic agent wherein the sodium zirconium carbonate has a moisture content of from about 15% to about 25% LOD in solid form. The process further involves washing the aqueous slurry containing the formed zirconium basic carbonate with water. A novel zirconium basic carbonate is further disclosed which has a minimum adsorption capacity of from about 30 to about 35 mg/PO-P/gm SCZ; a minimum HCO- content of from about 2 to about 4 mEq HCO-gm/SCZ; a leachable Nacontent of from about 1.5 to about 2.0 mEq Na/gm SCZ; and/or a pH range of titrated sodium zirconium carbonate of from about 6 to about 7.