Inorganic microporous nickle and cobalt phosphate molecular sieves materials and their synthesis method

Abstract

An inorganic millipore nickel cabolt phosphate molecular sieve is prepared through proportionally mixing the inorganic or organic metal salts of Ni and Co, ethyldiamine, ammonia water, phosphoric acid and hydrofluorie acid, crystallizing, separation, washing and drying.

Description

technical field [0001] The invention provides an inorganic microporous nickel-cobalt phosphate molecular sieve material and a synthesis method thereof, belonging to the field of molecular sieve materials. Background technique [0002] The acidic characteristics and redox catalytic properties of molecular sieves such as aluminum phosphate can be changed by introducing other metal ions into the framework for isomorphic substitution. In 1986, US Patent No. 4,567,029 reported the synthesis of metal phosphate MeAPO / MeAPSO for the first time, and since then this field has attracted extensive research interest. Chinese patents 99127147.5, 99127145.9, and 99127144.0 respectively provide metalloaluminophosphate molecular sieves or metallosilicoaluminophosphate molecular sieves with different structures and their synthesis methods. [0003] VSB-1 is an inorganic microporous nickel phosphate molecular sieve functional material, which has properties such as ion exchange, adsorption, ca...

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Problems solved by technology

The VSB-1 reported in the literature is hydrothermally synthesized by crystallization at 180°C for 144 hours. During the preparation process, the crystallization temperature is high and the crystallization time is long, which is not conducive to the realization of industrial production.

So far, there is no report on the doping of VSB-1 transition metal element system and related research

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