CHICHINESE

  • Molecular Sieve Classification Sumo

Molecular Sieve Classification Sumo

Tsanangudzo

Mamorekuru ezvinhu zvakasiyana anosiyaniswa nekutanga uye saizi yeadsorption, saka mufananidzo unonzi "molecular sieve".

Molecular sieve (inozivikanwawo seyakagadzirwa zeolite) is silicate microporous crystal.Iyo yakakosha skeleton chimiro chinoumbwa nesilicon aluminate, ine simbi cations (senge Na +, K +, Ca2 +, etc.) kuenzanisa yakawandisa yakaipa kuchaja mukristaro.Rudzi rwema molecular sieve inonyanya kukamurwa kuita A mhando, X mhando uye Y mhando zvinoenderana nekristaro yayo chimiro.

Kemikari formula yezeolite masero:

Mx/n [(AlO.2) x (SiO.2) y]WH.2O.

Mx/n:.

Cation ion, kuchengetedza kristaro isina kwayakarerekera

(AlO2) x (SiO2) y:

Iyo skeleton ye zeolite makristasi, ane akasiyana maumbirwo emakomba uye chiteshi

H2O:

muviri adsorbed mvura mhute

Features:

Multiple adsorption uye desorption inogona kuitwa
Nyora A Molecular Sieve

Chinhu chikuru cherudzi A molecular sieve is silicon aluminate.

The main crystal hole is octaring structure.The aperture of the main crystal aperture is 4Å(1Å=10-10m), inozivikanwawo semhando 4A (inozivikanwawo semhando A) molecular sieve;
Shandura iyo Ca2 + yeNa + mu4A molecular sieve, ichigadzira aperture ye5A, iyo inonzi 5A type (aka calcium A) molecular sieve;
K+ ye4A molecular sieve, ichigadzira aperture ye 3A, iyo inonzi 3A (aka potassium A) molecular sieve.

 

Nyora X Molecular Sieve

Chinhu chikuru cheX molecular sieve is silicon aluminate, iyo huru yekristaro gomba gumi nembiri element mhete chimiro.
Yakasiyana makristasi maitiro anoumba molecular sieve crystal ine aperture ye9-10 A, inonzi 13X (inozivikanwawo se sodium X type) molecular sieve;

Ca2 + yakatsinhaniswa neNa + mu 13X molecular sieve, ichiita molecular sieve crystal ine aperture ye8-9 A, inonzi 10X (inozivikanwawo se calcium X) molecular sieve.

 

Nyora A Molecular Sieve

Molecular Sieve1

Nyora X Molecular Sieve

Molecular Sieve2

Application

Iyo adsorption yezvinhu inobva kune yepanyama adsorption (vander Waals Force), ine yakasimba polarity uye Coulomb minda mukati mekristaro gomba, ichiratidza yakasimba adsorption kugona kwemapolar molecules (semvura) uye unsaturated mamorekuru.

Iyo aperture kugoverwa kweiyo molecular sieve yakanyatso yunifomu, uye chete zvinhu zvine dhayamita dhayamita idiki pane gomba dhayamita zvinogona kupinda mugomba rekristaro mukati mesefa yemamorekuru.


Tumira meseji yako kwatiri: