Korea Zinc has been granted a patent for a method to produce an aqueous solution containing nickel or cobalt. The process involves leaching, extraction, precipitation removal, and target material precipitation steps to separate and purify the metals from impurities. GlobalData’s report on Korea Zinc gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Korea Zinc, Solvent extraction processes was a key innovation area identified from patents. Korea Zinc's grant share as of March 2024 was 53%. Grant share is based on the ratio of number of grants to total number of patents.
Method for producing aqueous solution containing nickel or cobalt
A recently granted patent (Publication Number: US11926882B1) discloses a method for producing an aqueous solution containing nickel or cobalt. The method involves a series of steps, including leaching, extraction, precipitation removal, and target material precipitation. Notably, the method includes specific details such as the use of a first solvent extractant, a precipitating agent, and a neutralizing agent to selectively precipitate nickel or cobalt from the leachate solution. The patent also outlines the pH levels, temperatures, and specific materials used in each step to ensure the efficient separation and recovery of the target materials.
Furthermore, the patent describes a purification step for removing impurities such as magnesium, manganese, zinc, and copper from the leachate solution. This involves the addition of a sulfuric acid solution and sulfide to produce a second filtrate and recover a cobalt precipitate. Additional steps for copper removal and further extraction of cobalt and zinc are detailed, including the use of specific solvent extractants and pH levels. The method also includes washing steps to ensure the purity of the recovered nickel or cobalt. Overall, the patent provides a comprehensive and detailed process for efficiently producing aqueous solutions containing nickel or cobalt, with specific parameters and materials outlined for each step to optimize the recovery process.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
