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I-Molecular Sieve JZ-ZMS3
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I-Molecular Sieve JZ-ZMS4
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I-Molecular Sieve JZ-ZMS5
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I-Molecular Sieve JZ-ZMS9
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I-Molecular Sieve Powder JZ-ZT
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I-Molecular Sieve JZ-AZ
- Inkcazo
- Iimolekyuli zezinto ezahlukeneyo zihlukaniswa ngokubaluleka kunye nobukhulu be-adsorption, ngoko umfanekiso ubizwa ngokuba yi "molecular sieve".
- I-molecular sieve (eyaziwa ngokuba yi-synthetic zeolite) yikristale ye-silicate microporous.Isiseko se-skeleton isakhiwo esakhiwe nge-silicon aluminate, kunye ne-cations zetsimbi (ezifana ne-Na +, K +, Ca2 +, njl.) ukulungelelanisa umrhumo ogqithisileyo ongalunganga kwikristale.Uhlobo lwe-molecular sieve luhlulwe kakhulu lube yi-A, uhlobo lwe-X kunye nohlobo lwe-Y ngokwesakhiwo sekristale.
| Ifomula yekhemikhali yeeseli ze-zeolite | Mx/n [(AlO.2) x (SiO.2) y]WH.2O. |
| Mx/n. | I-Cation ion, ukugcina ikristale yombane ingathathi hlangothi |
| (AlO2) x (SiO2) y | I-skeleton yeekristale ze-zeolite, ezinemilo eyahlukeneyo yemingxuma kunye nemijelo |
| H2O | umphunga wamanzi adsorbed ngokwasemzimbeni |
| Iimbonakalo | I-adsorption eninzi kunye ne-desorption inokwenziwa |
| Uhlobo lwe-Amolecular sieve | | Inxalenye ephambili yohlobo lwe-A molecular sieve yi-silicon aluminate.Umngxuma oyintloko wekristale yisakhiwo se-octaring.I-aperture ye-crystal aperture enkulu yi-4Å(1Å=10-10m), eyaziwa ngokuba yi-type 4A (eyaziwa nangokuthi uhlobo A) i-molecular sieve;Tshintshela i-Ca2 + yeNa + kwi-4A ye-molecular sieve, yenza i-aperture ye-5A, eyile yodidi lwe-5A (aka calcium A) i-molecular sieve; i-K+ ye-4A ye-molecular sieve, eyenza i-aperture ye-3A, eyi-3A (aka potassium A) i-molecular sieve. |
| Uhlobo lwe-X ye-molecular sieve |
| Inxalenye ephambili ye-X ye-molecular sieve yi-silicon aluminate, i-crystal hole engundoqo yi-12 element element ring structure. ;Ca2 + yatshintshwa ngeNa + kwi-13X ye-molecular sieve, eyenza i-crystal sieve ye-molecular ene-aperture ye-8-9 A, ebizwa ngokuba yi-10X (eyaziwa ngokuba yi-calcium X) i-molecular sieve. |
- Isicelo
- I-adsorption yezinto eziphathekayo ivela kwi-adsorption ebonakalayo (i-vander Waals Force), ene-polarity eyomeleleyo kunye namasimi e-Coulomb ngaphakathi komngxuma wayo wekristale, ebonisa amandla e-adsorption anamandla kwiimolekyuli ze-polar (ezifana namanzi) kunye neemolekyuli ezingaxutywanga.
- Ukuhanjiswa kwe-aperture ye-sieve ye-molecular ifana kakhulu, kwaye kuphela izinto ezinobubanzi be-molecular encinci kunobubanzi bomngxuma onokungena kumngxuma wekristale ngaphakathi kwe-molecular sieve.