An apparatus and a method for synthesizing molecular sieve membranes
A molecular sieve and synthesis equipment technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of expensive microwave synthesis devices, small batch output of devices, and no cost advantage, and achieve improved quality and Its yield and the effect of reducing production costs
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Embodiment 1
[0030] Such as figure 1 As shown, the molecular sieve membrane production device of the present invention is composed of a raw material tank 2 and a membrane synthesis device 6 connected by pipelines. The raw material tank is a 2-jacket type; the center of the raw material tank is equipped with a turbine agitator 1. The membrane synthesis equipment 6 is composed of a head 3, a flange 4, a porous base membrane 5, a heat exchanger 7, and a propeller agitator 9. The porous base film is fixed on the tube sheet 8 of the heat exchanger by a card slot, the propeller stirrer is located in the center of the membrane synthesis equipment, and the porous base film and the propeller stirrer shaft are arranged in parallel. The head of the membrane synthesis equipment is connected with the membrane synthesis equipment through a flange. The membrane synthesis equipment is equipped with a heat exchanger to control the temperature of the raw material liquid. The liquid level difference betwee...
Embodiment 2
[0033] 1000 pieces of mullite base film with a length of 0.8m, an average pore diameter of 0.5μm and a porosity of 40% were polished smooth, cleaned and dried. The NaA molecular sieve seed crystals were formulated into a 30g / L aqueous solution, and after the ultrasonic dispersion was uniform, the dried porous base film was coated with crystals by dipping and placed in an oven for 100 seconds. Pass the heat transfer oil into the interlayer of the raw material tank, and mix the silica sol, sodium metaaluminate and aluminum hydroxide into Al 2 O 3 / SiO 2 =0.5, Na 2 O / SiO 2 = 3, H 2 O / Na 2 O=80 is dissolved in deionized water, the temperature of the raw material tank is controlled at 40°C, and the turbine agitator with a rotating speed of 500 rpm / min is turned on and stirred for 3 hours to form a raw material liquid. Put the 1000 base membranes coated with crystals into the membrane synthesis equipment for fixation, and the raw material liquid flows into the membrane synthesis equip...
Embodiment 3
[0035] 300 multi-channel alumina base membranes with a length of 1.0 m, an average pore diameter of 1 μm and a porosity of 30% were polished smooth, cleaned and dried. The NaA molecular sieve seed crystal was prepared into a 100g / L aqueous solution, and after the ultrasonic dispersion was uniform, the dried porous base film was crystallized by dipping and placed in an oven for 300 seconds. Pass steam into the raw material tank, and mix the silica sol, sodium metaaluminate and aluminum hydroxide into Al by molar ratio 2 O 3 / SiO 2 =0.5, Na 2 O / SiO 2 = 2, H 2 O / Na 2 O=50 is dissolved in deionized water, the temperature of the raw material tank is controlled at 30°C, and the turbine agitator with a rotating speed of 10000rpm / min is turned on and stirred for 0.5h to form a raw material liquid. Open the head, put the 300 base films coated with crystals into the membrane synthesis equipment for fixation, put the raw material liquid into the membrane synthesis equipment through a 4m le...
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Abstract
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