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:
Oct. 08, 1991
Filed:
Sep. 11, 1987
Claude R Andrews, Pasadena, MD (US);
John A Kosin, Bel Air, MD (US);
Michael E Tarquini, Havre de Grace, MD (US);
J. M. Huber Corporation, Rumson, NJ (US);
Abstract
A method for producing amorphous aluminocarbonate compounds which comprises continuously recirculating a first aqueous solution from a reaction vessel through a recycle system and injecting a gas comprising carbon dioxide into the first solution at a turbulent area located in the recycle system. A second aqueous solution is added to the first solution while the gas injection is continued, and the pH of the resulting mixture is maintained in the approximate range of from 8 to 10. The gas injection is discontinued when the entire amount of the second solution has been added to the first solution, in order to allow further precipitation of the amorphous compound. The method is particularly adapted for producing amorphous sodium aluminocarbonate and sodium magnesium aluminocarbonate.