Cov Lus Qhia Txog Khoom
Zeolite 4A yog ib hom hmoov dawb, tsis muaj ntxhiab, thiab zoo uas feem ntau siv los ua cov tshuaj ntxuav khaub ncaws. Nws ua rau cov dej mos los ntawm kev pauv ion, ua kom cov dej huv dua thaum tsis ua rau ib puag ncig puas tsuaj thiab tsis muaj phosphate.
Kev Siv Khoom
Kev lag luam tshuaj lom neeg txhua hnub
(1) Siv ua cov khoom pab ntxuav. Lub luag haujlwm ntawm 4A zeolite ua cov tshuaj ntxuav ntxiv yog feem ntau yog pauv cov calcium thiab magnesium ions hauv dej, yog li cov dej tuaj yeem ua kom mos thiab tiv thaiv kev rov ua dua ntawm cov av. Tam sim no, 4A zeolite yog cov khoom siv dav tshaj plaws thiab paub tab tshaj plaws hauv kev hloov cov phosphorus-muaj cov khoom ntxiv. Kev hloov ntawm 4A zeolite rau sodium tripolyphosphate ua tus pab ntxuav yog qhov tseem ceeb heev rau kev daws teeb meem kev ua qias tuaj ib puag ncig.
(2) 4A zeolite kuj tseem siv tau ua tus neeg sawv cev rau xab npum.
(3) 4A zeolite kuj tseem siv tau ua tus neeg sawv cev txhuam rau cov tshuaj txhuam hniav. Tam sim no, qhov ntau ntawm 4A zeolite hauv cov khoom ntxuav yog qhov loj tshaj plaws. Raws li 4A zeolite rau kev ntxuav, nws yog qhov tseem ceeb kom muaj peev xwm pauv calcium ntau dua thiab tus nqi pauv sai dua.
Kev lag luam tiv thaiv ib puag ncig
(1) Rau kev kho dej phwj tuaj. 4 tib neeg zeolite tuaj yeem tshem tawm Cu2 Zn2 + Cd2 + hauv dej phwj. Cov dej phwj los ntawm kev lag luam, kev ua liaj ua teb, kev ua liaj ua teb pej xeem thiab kev yug tsiaj hauv dej muaj ammonia nitrogen, uas tsis yog tsuas yog ua rau muaj kev phom sij rau kev ciaj sia ntawm cov ntses, ua rau muaj kuab paug rau ib puag ncig kab lis kev cai sab hauv, tab sis kuj txhawb kev loj hlob ntawm algae, ua rau kev thaiv ntawm cov dej thiab pas dej. 4A zeolite tau siv tau zoo hauv daim teb no vim nws qhov kev xaiv siab rau NH. Nws los ntawm cov dej phwj tawm los ntawm cov hlau mines, smelters, kev kho qhov chaw hlau thiab kev lag luam tshuaj lom neeg, uas muaj cov hlau hnyav ions uas ua rau tib neeg lub cev puas tsuaj heev. Kev kho cov dej phwj no nrog 4A zeolite tsis tuaj yeem tsuas yog xyuas kom meej qhov zoo ntawm dej, tab sis kuj rov qab tau cov hlau hnyav. Raws li 4A zeolite rau kev kho dej phwj, vim yog kev tshem tawm cov teeb meem ions hauv dej phwj ntau li ntau tau, cov khoom uas muaj crystallinity siab yog qhov xav tau.
(2) Txhim kho qhov zoo ntawm cov dej haus. Siv cov khoom pauv ion thiab cov khoom nqus ntawm zeolite, lub kaw lus ncig yog siv los ntxuav cov dej hiav txwv thiab ua kom cov dej tawv mos, thiab xaiv tshem tawm lossis txo cov khoom / kab mob / kab mob hauv qee qhov chaw dej haus.
(3) Kev kho cov pa roj phem. Cov ntawv thov hauv thaj chaw no suav nrog kev ntxuav cov pa roj hauv kev lag luam, kev kho cov pa roj pov tseg hauv kev lag luam thiab hauv tsev.
Kev ua yas
Hauv kev lag luam ua yas, tshwj xeeb tshaj yog polyvinyl chloride (hu ua PVC), calcium/zinc heat stabilizer siv los nqus cov hydrogen chloride dawb thaum lub sijhawm ua PVC kom tiv thaiv kev puas tsuaj PVC (uas yog, laus). 4 A zeolite tsis yog tsuas yog alkaline xwb, tab sis kuj muaj cov qauv sab hauv uas muaj qhov porous, yog li nws tuaj yeem neutralize thiab adsorb cov hydrogen chloride dawb hauv VC, uas tuaj yeem tiv thaiv kev laus ntawm PVC. Thaum 4A zeolite siv nrog calcium/zinc heat stabilizer, 4A zeolite tsis yog tsuas yog ua lub luag haujlwm ntawm heat stabilizer, tab sis kuj txo cov ntoo tsim ntawm calcium/zinc heat stabilizer. 4 A zeolite siv ua tus neeg sawv cev PVC heat stabilization, uas yog tus phooj ywg ib puag ncig thiab pheej yig. Tam sim no, daim ntawv thov ntawm 4A zeolite ntawm PVC yog nyob rau hauv nws thaum yau, thiab nws xav tias yuav muaj kev thov loj heev yav tom ntej. Tuam Tshoj yog lub teb chaws loj hauv kev tsim khoom thiab ua cov khoom siv PVC, cov khoom tsim tawm ntawm PVC yog thawj zaug hauv ntiaj teb, thiab tseem muaj kev nce txhua xyoo ntawm 5-8% yav tom ntej, yog li ntawd, daim ntawv thov ntawm 4 A zeolite hauv PVC muaj kev cia siab dav. Raws li tus neeg sawv cev tiv thaiv cua sov PVC nrog 4 A zeolite, muaj kev txwv nruj dua rau nws cov khoom txawv teb chaws xws li cov pob dub, feem ntau tsis pub ntau tshaj 10 / 25go vim tias cov pob dub feem ntau yog hydrophilic, thiab PVC thiab lwm yam polymer organic compounds (hydrophobic) tsis sib xws, ua rau muaj qhov tsis zoo hauv cov khoom ua tiav, cuam tshuam rau lub zog thiab tsos ntawm cov khoom.
Cov chiv ua liaj ua teb
(1) Siv ua kev hloov kho av. Cov khoom pauv cation thiab adsorption ntawm zeolite tuaj yeem siv ua kev hloov kho av ncaj qha los txhim kho kev muab cov ntsiab lus tseem ceeb uas cov qoob loo xav tau, txo cov acidity ntawm av thiab ua kom muaj peev xwm pauv av ntawm cov av.
(2) Siv ua chiv ua haujlwm ntev thiab chiv qeeb qeeb. Piv txwv li, kev sib xyaw ua ke ntawm zeolite nrog dihydroamine, hydrogen cheese, cov khoom tsis tshua muaj thiab lwm yam khoom siv tuaj yeem npaj cov tshuaj chiv ua ke ntev, uas tsis tsuas yog ua rau lub sijhawm ua haujlwm ntawm cov chiv nitrogen ntev dua, thiab txhim kho kev siv cov chiv nitrogen, tab sis kuj txhim kho cov zaub mov zoo ntawm cov qoob loo, txhawb kev loj hlob thiab kev txhim kho ntawm cov qoob loo, txhim kho lub peev xwm tiv thaiv kab mob, thiab ua rau cov qoob loo ntau ntxiv.
(3) Siv ua cov khoom noj ntxiv rau tsiaj txhu. Siv cov khoom siv adsorption thiab cation pauv ntawm zeolite ua tus nqa khoom los tsim cov khoom noj ntxiv rau tsiaj txhu, nws tuaj yeem txhim kho lub peev xwm tiv thaiv kab mob ntawm cov tsiaj pub tsiaj, txhawb kev tsim cov protein, ua kom qhov hnyav nce ntxiv sai dua thiab txhim kho kev siv pub tsiaj txhu.
(4) Siv ua ib yam khoom tiv thaiv. Cov khoom siv adsorption thiab pauv ntawm zeolite tuaj yeem siv los tiv thaiv thiab tswj cov kab mob qoob loo thiab cov kab tsuag, thiab txhim kho kev khaws cia thiab kev tiv thaiv ntawm cov khoom ua liaj ua teb xws li zaub thiab txiv hmab txiv ntoo thiab cov khoom siv hauv dej.
Kev lag luam hlau
Hauv kev lag luam hlau, nws feem ntau yog siv los ua tus neeg sawv cev sib cais los cais thiab rho tawm potassium, shuai, paj hauv brine thiab rau kev nplua nuj, sib cais thiab rho tawm cov hlau thiab lwm yam txheej txheem; Nws kuj tseem siv tau rau kev ua kom huv thiab kev ntxuav cov roj lossis kua, xws li kev npaj nitrogen, kev sib cais ntawm methane, ethane, thiab propane.
Kev lag luam ntawv
Daim ntawv thov ntawm zeolite ua cov khoom sau hauv kev lag luam ntawv tuaj yeem txhim kho kev ua tau zoo thiab zoo ntawm daim ntawv, yog li nws cov porosity nce, dej nqus tau zoo dua, nws yooj yim dua rau kev txiav, kev sau ntawv tau zoo dua, thiab nws muaj qee yam tiv taus hluav taws.
Kev lag luam txheej
Ua tus neeg sawv cev sau thiab cov xim zoo ntawm txheej, zeolite tuaj yeem muab cov txheej tiv thaiv, hnav tsis kam, tiv thaiv corrosion, tiv thaiv kub thiab tiv thaiv kev hloov pauv huab cua.
Kev lag luam roj av
4A molecular sieve feem ntau yog siv los ua adsorbent, desiccant thiab catalyst hauv kev lag luam petrochemical.
(1) ua ib qho adsorbent. 4A molecular sieve feem ntau yog siv rau kev adsorption ntawm cov tshuaj uas muaj molecular inch tsawg dua 4A, xws li dej, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene, thiab kev ua tau zoo ntawm dej yog siab dua li lwm yam molecule.
(2) ua ib qho desiccant. 4A molecular sieve feem ntau yog siv rau kev ziab cov roj ntuj thiab ntau yam tshuaj lom neeg cov pa roj thiab kua, cov tshuaj txias, tshuaj, cov khoom siv hluav taws xob thiab cov tshuaj volatile.
(3) ua ib qho catalyst. 4A molecular sieve tsis tshua siv ua catalyst. Hauv kev teb ntawm catalysis, X zeolite, Y zeolite thiab ZK-5 zeolite feem ntau yog siv. Kev lag luam petrochemical feem ntau xav tau 4A molecular sieve hom zeolite, yog li ntawd, nws xav tau qib siab ntawm crystallinity.
