Momwe mungagwiritsire ntchito 4A molecular sieve

Momwe mungagwiritsire ntchito 4A molecular sieve?Kodi ndi zinthu ziti zomwe zimafunikira pa chilengedwe chomwe chimagwirira ntchito?Monga porous material, 4A molecular sieve amagwiritsidwa ntchito kwambiri m'madera ambiri chifukwa cha sieve yake ya microporous molecular monga adsorption leparation material, ion exchange material and catalytic material.
Choyamba, tiyeni tiwone kukhazikitsidwa kwa 4A molecular sieve:
Chifukwa kukula kwake kwa pore ndi 0.4nm, kumatchedwa 4A molecular sieve, yomwe imatha kutulutsa mankhwala otsika a maselo monga madzi, methanol, ethanol, carbon dioxide, ethylene, sulfure dioxide, hydrogen sulfide, ndi propylene.

• 1. Kukula kwa mamolekyu a njira yogwiritsira ntchito 4A molecular sieve

Chifukwa kukula kwake kwa pore ndi 0.4mm, sikungathe kutsatsa molekyulu iliyonse (kuphatikiza propane) yokhala ndi m'mimba mwake yokulirapo kuposa 0.4mm, koma mawonekedwe ake opangira madzi ndi apamwamba kuposa mamolekyu ena aliwonse, ndipo ndi amodzi mwa maselo omwe amagwiritsidwa ntchito kwambiri. sieve mitundu mu mafakitale.

• Malo ogwiritsira ntchito njira yogwiritsira ntchito 4A molecular sieve

1. Pamene kutentha kuli 110 ° C, n'zotheka kutulutsa madzi m'malo akuluakulu, koma sizingathamangitse madzi mu pores a molekyulu sieve.Chifukwa chake, mu labotale, imatha kuyendetsedwa ndikutha madzi m'thupi mwa kuyanika mung'anjo yamoto.Kutentha ndi 350 ° C, ndipo zouma pansi pa kupanikizika kwabwino kwa maola 8 (ngati pali pampu ya vacuum, ikhoza kuumitsidwa pa 150 ° C kwa maola 5).
2. The activated 4A molecular sieve imakhazikika pafupifupi 200 ° C (pafupifupi mphindi 2) mumlengalenga, ndipo iyenera kusungidwa mu desiccator nthawi yomweyo.
3. Pamalo ololedwa, chitetezo chowuma cha nayitrogeni chiyenera kugwiritsidwa ntchito pozizira ndi kusungirako, zomwe zingateteze bwino kuti nthunzi yamadzi mumlengalenga isabwerenso.Chifukwa sieve yakale ya mamolekyu ikagwiritsidwa ntchito imakhala ndi zonyansa, sayenera kutsegulidwa pa kutentha kwa 450 ° C, komanso mpweya wamadzi kapena mpweya wa inert (nayitrogeni, ndi zina zotero) ziyenera kuyambitsidwa kuti zilowe m'malo mwa zinthu zina mu sieve ya maselo.
4. Pewani mafuta ndi madzi amadzimadzi mukamagwiritsa ntchito, ndipo yesetsani kupewa kukhudzana mwachindunji ndi mafuta ndi madzi amadzimadzi.
Monga alkali zitsulo aluminosilicate, 4A maselo sieve amakonda makasitomala ambiri mu kuyanika mpweya ndi madzi, ndipo angagwiritsidwe ntchito kuyenga ndi kuyeretsa mpweya kapena madzi, monga m'zigawo za argon.Tsopano, kodi mukumvetsa njira zodzitetezera kuti zigwiritsidwe ntchito?
Sakatulani zambiri za sieve ya maselo:

https://www.kelleychempacking.com/news/adsorption-performance-of-4a-molecular-sieve-for-h%e2%82%82s/

https://www.kelleychempacking.com/news/2-tips-to-extend-the-life-of-molecular-sieves/

https://www.kelleychempacking.com/news/korean-customer-inspected-the-production-schedule-of-80-tons-of-molecular-sieve/