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:
Jul. 05, 1994
Filed:
Aug. 07, 1992
Bryan D Evans, Shawnee Mission, KS (US);
Other;
Abstract
A low-cost, fluidized-bed drying process for the production of solidified alkaline earth salts is provided which is especially useful for the production of MgCl.sub.2.6H.sub.2 O from a starting brine nominally containing MgCl.sub.2.12H.sub.2 O. The process includes the steps of passing the starting brine into a drying chamber (12) and fluidizing the brine by contact with hot air for a period of from about 1-15 minutes while heating the brine to a maximum temperature of from about 200.degree.-275.degree. F. This creates a molten salt product, which can then be cooled using ambient air to yield the desired final product. Preferably, the brine is heated to a temperature of from about 230.degree.-250.degree. F., and is subjected to fluidizing contact with hot air for about 5-8 minutes. Ambient air cooling is accomplished by contacting the intermediate melt with ambient air for a period of from about 10 seconds to 3 minutes.