ALUMINUM-BASED LITHIUM ION SIEVE, PREPARATION METHOD THEREFOR AND USE THEREOF

Disclosed are an aluminum-based lithium ion-sieve (LIS), and a preparation method and use thereof. The aluminum-based LIS is Li2SO4·2Al(OH)3·nH2O coated with Al(OH)3, where n is 1 to 4. The preparation method includes: reacting an aluminum salt and a lithium salt with an alkali to obtain an adsorben...

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Bibliographische Detailangaben
Hauptverfasser:	TAN, Feng, YANG, Ding, CHEN, Ruokui, QIAO, Yanchao, ZHENG, Xianliang, LI, Changdong
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	Disclosed are an aluminum-based lithium ion-sieve (LIS), and a preparation method and use thereof. The aluminum-based LIS is Li2SO4·2Al(OH)3·nH2O coated with Al(OH)3, where n is 1 to 4. The preparation method includes: reacting an aluminum salt and a lithium salt with an alkali to obtain an adsorbent intermediate LiOH·2Al(OH)3·nH2O; using a dilute sulfuric acid to obtain an aluminum-based lithium adsorbent Li2SO4·2Al(OH)3·nH2O; and filtering out and washing the adsorbent, mixing the adsorbent with a metaaluminate, and adjusting a pH to obtain the Li2SO4·2Al(OH)3·nH2O coated with Al(OH)3. The aluminum-based LIS of the present disclosure has the advantages of high adsorption capacity and prominent stability, and can be used to efficiently recover low-concentration lithium in industrial wastewater. Moreover, the LIS is coated with aluminum hydroxide, which can effectively protect the structure from being corroded.