Activated alumina production, a new molecular sieve (certified), activated alumina, molecular sieves, Ltd. from Shanghai have a new offer. Shanghai new molecular sieve Limited (www.molsionms.com) is specialized in the "sieve" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Pan. 1.3 Adsorption performance evaluation - Shanghai Co., said there is a new molecular sieves 4A molecular sieve placed to take a certain amount of NH4Cl solution 1mol / L in Guizhou activated alumina, 40 ℃ water bath and stir 6h, vacuum sand filtration, washed with water until the filtrate until no Cl- ( with 0.1mol / AgNO3 solution L of detection), 80 ℃ dried 4h, calcined at 500 ℃ 2h. Is then processed through a molecular sieve was placed in 0.1mol / L of the surfactant solution of active alumina, 40 ℃ water bath was stirred for 24h, after sand filtration in vacuo, washed with water until the filtrate until no Br- (with 0.1mol / L of AgNO3 detection solution), with two efficient production of high-purity distillation process oxygen and nitrogen; supercharged turboexpander Shanxi activated alumina, the use of gas expansion of output power to drive the turbocharger directly in order to save energy, improve cooling volume; efficient use of aluminum heat exchanger fin heat exchanger, so compact, high heat transfer efficiency; zeolite clean air, has a simple process, easy to operate, greatly extend the period of continuous operation device. Stable, safe and reliable,