Lithium adsorbent, and preparation method and application thereof

Abstract

Disclosed are a lithium adsorbent, and a preparation method and an application thereof, which relate to the technical of extraction of lithium. The method of the disclosure includes obtaining a lithium adsorbent intermediate by mixing an oil phase with an aqueous phase; and obtaining the lithium adsorbent by mixing the lithium adsorbent intermediate with an organic auxiliary agent; where the oil phase includes a lithium source, an aluminum source, an oil-phase matrix, and an oil-phase auxiliary agent, and the oil-phase matrix includes a high-molecular polymer and vinylidene fluoride; the mixing an oil phase with an aqueous phase includes performing gradient stirring on a mixture of the oil phase and the aqueous phase. According to the disclosure, the high-stability lithium adsorbent can be prepared by optimizing and screening the high-temperature resistant oil-phase matrix and a specific preparation process. Compared with an existing lithium adsorbent, the lithium adsorbent prepared through the disclosure has less degradation, better mechanical strength, and stronger corrosion resistance in a high-temperature environment, and therefore a way of effectively extracting lithium resources from high-temperature and high-salt brine is provided.

Dependencies are inferred from the claim text.