Synthesis of Spherical Composite CMC-LTO-EGDE-ME for Lithium Recovery from Geothermal Water

Abstract

In this study, ethylene glycol diglycidyl ether (EGDE) and melamine (ME) were used to prepare a spherical composite material CMC-LTO-EGDE-ME through the strategy of cross-linking reaction of biodegradable sodium carboxymethyl cellulose (CMC) with Li2TiO3 (LTO) to improve the cycle stability of the adsorption-desorption for lithium recovery. In the geothermal water at 333.15°K, the adsorption capacity of the spherical composite adsorbent for lithium-ion is 12.02 mg/g, and the adsorption equilibrium time is 8 h. There is a good selectivity of Li+ (Kd = 3.7 × 103) and high separation factors between Li+ and Na+, K+, Cs+ and Ca2+ (between 39.17 and 181.97). Studies on adsorption kinetics and adsorption isotherm showed that composite material’s adsorption process was obtained from the pseudosecond-order kinetics and the molecular diffusion model. It was found that the composite material has broad applications in lithium recovery from geothermal water.

The morphology of the powder contained in solid alloy used to crush underground resources

“…Ultradisperse titanium carbide powders produced at Shanghai Feiyan Industrial Development Co., Ltd. were selected. The electron microscopic method was used during research, and the JSM-IT200 (JEOL, Japan) scanning electron microscope of the "Uzbekistan-Japan Youth Innovation Center" was used [19][20][21][22].…”

Granulation of Lithium-Ion Sieves Using Biopolymers: A Review

“…Crosslinking prior to granulation is anticipated to enhance the integrity of the LIS granules due to the mechanical stability of the crosslinked powdered sieve materials. composite materials is common [24,[47][48][49][50][51][52][53] and can be achieved either before or after granulation, with variable outcomes. Crosslinking prior to granulation is anticipated to enhance the integrity of the LIS granules due to the mechanical stability of the crosslinked powdered sieve materials.…”

“…Regeneration studies using LiCl solution showed that the Li adsorption capacity of HTO/CA changed slightly after the first five adsorption-desorption cycles, with the final adsorption capacity being 22.95 mg/g. In another study, Xie et al [52] synthesized spherical composite LISs made of CMC-CLS, EGDE, melamine (ME), and LTO-based sieves with Li2TiO3 as the precursor. The multi-step crosslinked granules were made as follows: 1.5 g of Li2TiO3, 1.5 g CMC, and 100 mL of double deionized water (DDW) were added to a beaker and stirred at ambient temperature for about 6 h with sonication for several minutes to obtain a homogeneous mixture.…”

“…Figure 12). The composite granules were filtered, washed with DDW, and dried under vacuum at 318.15 K for 24 h. The synthesized In another study, Xie et al [52] synthesized spherical composite LISs made of CMC-CLS, EGDE, melamine (ME), and LTO-based sieves with Li 2 TiO 3 as the precursor. The multi-step crosslinked granules were made as follows: 1.5 g of Li 2 TiO 3 , 1.5 g CMC, and 100 mL of double deionized water (DDW) were added to a beaker and stirred at ambient temperature for about 6 h with sonication for several minutes to obtain a homogeneous mixture.…”

Investigation of the process of extraction of copper from dust of electric filters of oxygen-flare smelting furnace with sulfuric, thermal, and extractive phosphoric acid

“…Plenty of reserves identified for industrial development and exploited deposits in the Almalyk mining region in Uzbekistan, there are also non-traditional resources -waste from the enrichment and metallurgical processing of copper-molybdenum, lead-zinc and gold ore deposits. Technogenic wastes of mining (deposit), processing and metallurgical production represented by dump parent primary off-balance sulfide ore; and their oxidation products (balances, and off-balance mixed and oxidized ores), tailings of enrichment of copper-molybdenum and lead ores: slags; coca metallurgical production [6][7][8].…”