MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202417086815 A) filed by Korea Zinc Co. Ltd.; and Kemco, Seoul, Republic of Korea, on Nov. 11, 2024, for 'method for preparing nickel sulfate aqueous solution from raw material containing nickel.'
Inventor(s) include Choi, Heon Sik; and Lee, Je Joong.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "The present invention provides a method for preparing a nickel sulfate aqueous solution, the method comprising: (A-i) a reduction heat treatment step of heat-treating a first raw material containing nickel and lithium; (B) a first leaching step of leach...