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Isisefo se-molecular JZ-ZMS3
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Isisefo se-molecular JZ-ZMS4
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Isisefo se-molecular JZ-ZMS5
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Isisefo se-molecular JZ-ZMS9
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I-Molecular Sieve Powder JZ-ZT
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I-Molecular Sieve JZ-AZ
- Incazelo
- Ama-molecule ezinto ezihlukene ahlukaniswa ngokubaluleka nobukhulu be-adsorption, ngakho isithombe sibizwa ngokuthi "isisefo samangqamuzana".
- Isisefo samangqamuzana (esaziwa nangokuthi i-synthetic zeolite) i-silicate microporous crystal.Kuwuhlaka oluyisisekelo lwamathambo olwakhiwe nge-silicon aluminate, olunama-cations ensimbi (afana ne-Na +, K +, Ca2 +, njll.) ukuze kulinganiswe inkokhiso engalungile eyeqile kukristalu.Uhlobo lwesisefo samangqamuzana luhlukaniswe ikakhulukazi uhlobo A, uhlobo lwe-X kanye nohlobo lwe-Y ngokusho kwesakhiwo sekristalu.
| Ifomula yamakhemikhali yamaseli e-zeolite | Mx/n [(AlO.2) x (SiO.2) y]WH.2O. |
| Mx/n. | I-cation ion, igcina i-crystal ingathathi hlangothi ngogesi |
| (AlO2) x (SiO2) y | Uhlaka lwamathambo amakristalu e-zeolite, anomumo ohlukene wezimbobo namashaneli |
| I-H2O | umhwamuko wamanzi okhangiswa ngokomzimba |
| Izici | I-adsorption eminingi kanye ne-desorption ingenziwa |
| Thayipha isisefo se-Amolecular | | Ingxenye eyinhloko yohlobo A isisefo samangqamuzana i-silicon aluminate.Imbobo yekristalu eyinhloko yisakhiwo se-octaring.Imbobo ye-crystal aperture enkulu ngu-4Å(1Å=10-10m), eyaziwa ngokuthi uhlobo 4A (okwaziwa nangokuthi uhlobo A) isisefo samangqamuzana;Shintshanisa i-Ca2 + nge-Na + ku-4A yesisefo se-molecular, yenza indawo yokuvula engu-5A, okungukuthi uhlobo lwe-5A (aka calcium A) i-molecular sieve; K+ ngesefo engu-4A ye-molecular, eyenza i-aperture engu-3A, okungukuthi i-3A (aka potassium A) isisefo samangqamuzana. |
| Thayipha isisefo se-molecular X |
| Ingxenye eyinhloko yesisefo se-X yamangqamuzana i-silicon aluminate, imbobo yekristalu eyinhloko iyisakhiwo sendandatho eyishumi nambili. Isakhiwo sekristalu esihlukile sakha ikristalu yesihluzo samangqamuzana enembobo engu-9-10 A, ebizwa ngokuthi i-13X (eyaziwa nangokuthi uhlobo lwe-sodium X) isisefo samangqamuzana. ;I-Ca2 + ishintshisane ngokuthi i-Na + kusisefo se-molecular 13X, yenza ikristalu ye-molecular sieve enembobo engu-8-9 A, ebizwa ngokuthi i-10X (eyaziwa nangokuthi i-calcium X) i-molecular sieve. |
- Isicelo
- I-adsorption yezinto ezibonakalayo ivela ku-adsorption ebonakalayo (i-vander Waals Force), ene-polarity eqinile kanye nezinkambu ze-Coulomb ngaphakathi kwembobo yekristalu, ebonisa amandla okukhangisa aqinile ama-molecule e-polar (njengamanzi) nama-molecule angagcwele.
- Ukusatshalaliswa kwembobo yesisefo samangqamuzana kufana kakhulu, futhi izinto kuphela ezinobubanzi bemolekyuli encane kunobubanzi bembobo ezingangena embotsheni yekristalu ngaphakathi kwesisefo samangqamuzana.