A method for co-producing high-purity aluminum-based metal organic coordination material and silicon aluminum molecular sieve and its application

Abstract

The present invention discloses a method for co-producing high-purity aluminum-based metal organic coordination materials and silicon-aluminum molecular sieves and their application, belonging to the technical field of resource utilization of solid waste and synthesis of porous materials. The present invention uses aluminum-containing liquid obtained by activating and pickling solid waste rich in silicon and aluminum as an aluminum ion source, and uses terephthalic acid obtained by hydrolyzing waste plastics as an organic linker, and prepares aluminum-based metal organic coordination materials through the coordination effect between aluminum ions and the organic linker. The silicon-aluminum molecular sieve is prepared using the lower silicon-rich residue after pickling of solid waste as a precursor, thereby realizing the co-production of aluminum-based metal organic coordination materials and silicon-aluminum molecular sieves. In addition, the alkaline wastewater generated after the synthesis of silicon-aluminum molecular sieves is used as an alkaline solvent to hydrolyze waste plastics. The aluminum-based metal organic coordination materials and silicon-aluminum molecular sieve materials prepared from dual solid waste resources are applied to CO2 adsorption and dye adsorption, and both show adsorption performance superior to that of materials synthesized from chemical reagents.

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