Cov surfactants ua lub luag haujlwm tshwj xeeb dab tsi hauv ntau yam kev siv tu vaj tse?

1. Daim Ntawv Thov Hauv Chelating Cleaning

Cov neeg sawv cev chelating, tseem hu ua cov neeg sawv cev complexing lossis ligands, siv cov complexation (kev sib koom tes) lossis chelation ntawm ntau yam neeg sawv cev chelating (suav nrog cov neeg sawv cev complexing) nrog cov scaling ions los tsim cov complexes soluble (cov tshuaj sib koom tes) rau kev ntxuav.

Cov tshuaj surfactantsFeem ntau ntxiv rau hauv kev ntxuav cov tshuaj chelating kom txhawb cov txheej txheem ntxuav. Cov tshuaj inorganic complexing feem ntau siv suav nrog sodium tripolyphosphate, thaum cov tshuaj organic chelating feem ntau siv suav nrog ethylenediaminetetraacetic acid (EDTA) thiab nitrilotriacetic acid (NTA). Kev ntxuav cov tshuaj chelating tsis yog siv rau kev ntxuav cov dej txias xwb tab sis kuj tau pom kev txhim kho tseem ceeb hauv kev ntxuav cov nplai uas nyuaj rau yaj. Vim nws muaj peev xwm ua kom cov hlau ions sib xyaw lossis chelate hauv ntau yam nplai uas nyuaj rau yaj, nws muab kev ntxuav zoo.

2. Daim Ntawv Thov Hauv Kev Ntxuav Roj Hnyav Thiab Coke Fouling

Hauv cov chaw ua roj av thiab cov chaw tsim tshuaj petrochemical, cov khoom siv pauv cua sov thiab cov kav dej feem ntau raug kev txom nyem los ntawm cov roj hnyav thiab cov coke deposition, uas yuav tsum tau ntxuav ntau zaus. Kev siv cov organic solvents yog cov tshuaj lom heev, flammable, thiab tawg, thaum cov txheej txheem ntxuav alkaline dav dav tsis muaj txiaj ntsig tiv thaiv cov roj hnyav thiab coke.

Tam sim no, cov tshuaj ntxuav roj hnyav uas tsim tawm hauv tebchaws thiab thoob ntiaj teb feem ntau yog ua los ntawm cov tshuaj sib xyaw ua ke, uas muaj ntau yam tshuaj surfactants uas tsis yog ionic thiab anionic, nrog rau cov tshuaj inorganic thiab cov tshuaj alkaline. Cov tshuaj sib xyaw ua ke tsis yog tsuas yog tsim cov teebmeem xws li ntub, nkag mus, emulsification, dispersion, solubilization, thiab foaming tab sis kuj muaj peev xwm nqus FeS₂. Feem ntau, cua sov rau saum 80 ° C yog qhov yuav tsum tau ua rau kev ntxuav.

3. Daim Ntawv Thov Hauv Cov Tshuaj Tua Kab Mob Dej Txias

Thaum cov kab mob me me nyob hauv cov dej txias, cov tshuaj tua kab mob uas tsis yog oxidizing raug siv, nrog rau cov tshuaj surfactants uas tsis muaj npuas ntau ua cov tshuaj dispersants thiab penetrants, los txhim kho cov haujlwm ntawm cov neeg sawv cev thiab txhawb lawv txoj kev nkag mus rau hauv cov hlwb thiab cov txheej txheem ntawm cov pwm.

Tsis tas li ntawd xwb, cov tshuaj tua kab mob quaternary ammonium ntsev biocides kuj siv dav heev. Cov no yog qee cov cationic surfactants, feem ntau yog benzalkonium chloride thiab benzyldimethylammonium chloride. Lawv muaj zog tua kab mob zoo, yooj yim siv, tsis muaj tshuaj lom, thiab pheej yig. Dhau li ntawm lawv cov haujlwm ntawm kev tshem tawm cov slime thiab tshem tawm cov ntxhiab tsw ntawm dej, lawv kuj muaj cov teebmeem tiv thaiv xeb.

Ntxiv mus, cov tshuaj tua kab mob uas muaj cov ntsev quaternary ammonium thiab methylene dithiocyanate tsis yog tsuas yog muaj cov teebmeem dav dav thiab synergistic biocidal xwb tab sis kuj tiv thaiv kev loj hlob ntawm slime.