Lub luag haujlwm ntawm 4A Zeolite hauv Detergent
4A zeolite synthesis raw cov ntaub ntawv tuaj yeem muab faib ua ob pawg: ib qho yog NaOH, Al (OH) 3 lossis Al2 (SO4) 3, sodium silicate thiab lwm yam khoom siv tshuaj, yog cov khoom siv tseem ceeb ntawm kev lag luam synthesis tam sim no; Lwm yam yog ntuj aluminosilicate ntxhia raw cov ntaub ntawv, xws li (kev ntsuas thee) kaolin, (sodium puag) bentonite, ntuj zeolite, alum, bauxite, siab alumina cement, iav tuff, thiab lwm yam, uas tau pib hloov qee cov tshuaj raw khoom. .
Hauj lwm lawm
Lub luag haujlwm ntawm 4A zeolite hauv xab npum
Khoom Description
Kev sib pauv ion ntawm4A zeoliteyog nqa tawm nrog txhuas ions ntawm lub cev pob txha, thiab cov nqi tsis zoo ntawm txhua lub txhuas ion tuaj yeem tsis tsuas khi Na plus, tab sis kuj muaj lwm yam cations. Cov cations no (xws li Ca2 ntxiv) nyob rau hauv zeolite nkag mus rau hauv lub loj crystalline kab noj hniav yav tas los nyob los ntawm Na ntxiv thiab hloov lub Na ntxiv nyob rau hauv lub 4A molecular sieve.
Lub ntsiab tseem ceeb cuam tshuam rau kev sib pauv ion ntawm 4A zeolite yog particle loj, kub thiab pH nqi. Qhov me me ntawm 4A zeolite yog, qhov hloov pauv sai dua, thiab qhov zoo tshaj plaws yog 1μm ~ 10μm. Thaum qhov kub nce ntawm 20 degree mus rau 60 degree, lub peev xwm ntawm zeolite los pauv calcium ion tau nce, tab sis tsis loj heev. Alkalinity pab txhim kho lub peev xwm ntawm 4A zeolite los pauv calcium ions. Hauv kev daws teeb meem nruab nrab, qhov kev sib pauv muaj peev xwm yog 70% ~ 80 feem pua. Thaum pH tus nqi yog 9 ~ 11, ntau tshaj 90 feem pua ntawm cov peev txheej pauv tuaj yeem ua tiav. Lub peev xwm ntawm 4A zeolite los pauv magnesium ions tsis zoo, vim tias txoj kab uas hla ntawm hydrated magnesium ions loj dua li ntawm 4A zeolite, thiab kev sib pauv ion yog qhov nyuaj rau kev ua. Thaum cov sodium ions nyob rau hauv 4A zeolite pauv los ntawm calcium ions 1/3, tus naj npawb ntawm cations raug txo, qhov chaw yog khoob, thiab lub pore loj loj mus txog 0.5nm, ces lub peev xwm tshem tawm ntawm magnesium ions nce correspondingly, yog li ntawd. 4A zeolite tuaj yeem tshem tawm 98 feem pua calcium ions thiab tsawg kawg 50 feem pua magnesium ions. Thaum sodium tripolyphosphate tau hloov ib nrab los ntawm zeolite hydrate, qhov seem ntawm calcium mus txog hauv qab 1 × 10-6 tom qab ntxiv 4A zeolite rau 10min. FIG. 1 piv cov kev tshem tawm ntawm Ca2 ntxiv thiab Mg2 ntxiv los ntawm 4A zeolite. Initial mass concentration: ρ(Ca2 plus)=80mg/L, ρ(Mg2 plus)=40mg/L(Ca2 plus xam los ntawm CaCO3, Mg2 plus xam los ntawm MgCO3); Zeolite pawg feem 0.06 feem pua; Kub 40 degree
Nws tuaj yeem nqa ntau cov nonionic surfactants
Lub adsorption ntawm zeolite rau nonionic surfactants yog 3 npaug ntawm NTA (subamino-triacetate) thiab sodium carbonate, thiab 5 npaug ntawm STPP thiab sodium sulfate. Cov cuab yeej no yog qhov tseem ceeb heev rau kev ntxiv cov surfactants rau hauv adhesion tsim cov tshuaj ntxhua khaub ncaws los tsim cov khoom tshiab nrog kev ntxuav zoo thiab ntws.
Synergistic nyhuv
Hauv cov tshuaj ntxuav tes, kev sib xyaw ua ke ntawm cov khoom sib txawv feem ntau ua tiav kev ua tau zoo dua li ib qho kev sib xyaw ua ke. Ntxiv nrog rau chelating hnyav hlau ions, 4A zeolite kuj muaj kev cuam tshuam nrog surfactants zoo li lwm cov electrolytes.
| Hom | Z-4A |
|
Ca pauv peev xwm |
Ntau dua lossis sib npaug rau 295 (mg CaCO3 / g) |
| Ca pauv tus nqi: (2 feeb) | Ntau dua lossis sib npaug rau 175 (mg CaCO3 / g) |
| (10 feeb) | Ntau dua lossis sib npaug rau 190 (mg CaCO3 / g) |
| Particle loj: D50 | 2-4um |
| D10 | Ntau tshaj los yog sib npaug rau 1um |
| D90 | Tsawg dua los yog sib npaug li 10um |
|
ntxiv 325 mesh |
Tsawg dua lossis sib npaug li 2 feem pua |
| dawb (W plus Y10) | Ntau dua lossis sib npaug li 96 feem pua |
| PH (1% tov, 25 degree) | Tsawg dua los yog sib npaug 11 |
| LOI (800 degree, 1h) | Tsawg dua lossis sib npaug li 22 feem pua |
| Al3 plus (Dry hauv paus) | Ntau dua lossis sib npaug li 18 feem pua |
Cim npe nrov: Lub luag haujlwm ntawm 4a zeolite hauv xab npum
