- 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 |
Type Amolecular 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 + iri mu4A molecular sieve, ichiita aperture ye5A, iyo inonzi 5A type (aka calcium A) molecular sieve;K+ ye4A molecular sieve, ichiita aperture ye3A, iyo 3A (aka potassium A) molecular sieve. |
Nyora X molecular sieve | Chinhu chikuru che X molecular sieve is silicon aluminate, hole huru yecrystal ine gumi nembiri element ring structure.Different crystal structure inoumba 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. |
- 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.