XH9 new zeolite molecular sieve _ (certified) _ new zeolite molecular sieves by Shanghai Limited. 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. Shanghai new molecular sieve Ltd. - Surfactant Modified Zeolite 4A anionic heavy metal wastewater treatment by dipping method for surface modification XH9 4A zeolite molecular sieve, through the introduction of a cationic surfactant, so 4A zeolite surface attachment quaternary ammonium cation XH7 molecular sieve, and with the formation of counter-ions Br- "anion exchange membrane" psaO2 sieve, thus contributing to more Cr (VI) adsorption by ion exchange anion onto modified zeolite 4A, time: 8:00: 30-11: 00 pm 13: 30-16: 00. (Shanghai there are new molecular sieve Ltd.) Location: No. 759, 6th Floor, Yanbian Korean Autonomous Prefecture Public Resource Exchange Center received area (or No. 436, 7th Floor, Room 706, Yanji City, Jilin Province, Henan Street, Yanji City, Jilin Province, Korea love Dan Road Building ). The bidder should bring relevant information to our center after a free registration to obtain a unified tenders, direct involvement after obtaining bids from other sources are considered invalid tender bid.