US Patent Issued to PETROLIAM NASIONAL BERHAD (PETRONAS) on March 31 for "Reactor and method for making calcium hydroxide" (Malaysian Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,009, issued on March 31, was assigned to PETROLIAM NASIONAL BERHAD (PETRONAS) (Kuala Lumpur, Malaysia).

"Reactor and method for making calcium hydroxide" was invented by Mohammad Ghaddaffi b M Noh (Kuala Lumpur, Malaysia), M Syazwan B Onn (Kuala Lumpur, Malaysia) and Ruzilah Binti Sanom (Kuala Lumpur, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for making a calcium hydroxide solution includes adding water and calcium oxide into a slaking reactor equipped with a stirring means at an upper end and two or more outlets positioned at different heights. The materials are stirred so that a vertical concentration gradient of calcium io...