Chlor-alkali, uas yog, Chlor-alkali kev lag luam kuj hais txog txoj kev siv cov saturated brine los ua chlorine hydrogen caustic soda. Hauv kev lag luam, NaOH, Cl2, thiab H2 yog npaj los ntawm electrolysis ntawm saturated NaCl tov, thiab cov khoom siv tshuaj lom neeg yog tsim los ntawm kev siv cov khoom siv raw, uas yog hu ua Chlor-alkali kev lag luam. Chlor-alkali kev lag luam yog ib qho ntawm cov kev lag luam chemical tshaj plaws. Nws cov khoom yog dav siv nyob rau hauv lub teeb kev lag luam, textile kev lag luam, metallurgical kev lag luam, petrochemical kev lag luam, thiab pej xeem cov kev pab cuam ntxiv rau kev lag luam tshuaj nws tus kheej.
Titanium anode electrolyzer, ntub chlorine txias, thiab Chlor-alkali kev lag luam
Titanium muaj zog corrosion kuj vim hais tias nws muaj ib tug tshwj xeeb loj affinity rau oxygen, thiab ib tug ntom oxide zaj duab xis yuav raug tsim nyob rau saum npoo los tiv thaiv titanium los ntawm nruab nrab corrosion. Titanium tuaj yeem tsim cov yeeb yaj kiab oxide passive rau ntawm qhov chaw hauv feem ntau cov tshuaj aqueous. Yog li ntawd, titanium muaj kev ruaj ntseg zoo hauv acidic, alkaline, nruab nrab ntsev daws thiab oxidizing media, thiab nws cov corrosion kuj zoo dua li cov hlau tsis muaj steel thiab lwm yam hlau tsis muaj hlau, thiab txawm tias piv rau platinum.
Txawm li cas los xij, yog tias oxide zaj duab xis ntawm titanium nto tuaj yeem yaj tas li hauv ib qho nruab nrab, titanium yuav raug corroded hauv qhov nruab nrab no. Piv txwv li, titanium yog corroded nyob rau hauv hydrofluoric acid, concentrated los yog kub hydrochloric acid, sulfuric acid, thiab phosphoric acid vim hais tias cov kev daws teeb meem no yaj cov oxide zaj duab xis ntawm titanium nto. Yog tias muaj oxidant lossis qee cov hlau ions ntxiv rau cov kev daws teeb meem no, oxide zaj duab xis ntawm titanium nto yuav raug tiv thaiv, thiab cov khoom ruaj khov ntawm titanium yuav nce.
Tsuas yog rau cov lus hais saum toj no-hais txog plaub inorganic acids ntawm hydrofluoric acid, concentrated los yog kub hydrochloric acid, sulfuric acid thiab phosphoric acid, thiab cov corrosive txhuas chloride, titanium muaj kev ruaj ntseg zoo. Yog li ntawd, titanium yog ib yam khoom zoo heev los tiv thaiv corrosion hauv kev lag luam tshuaj thiab tau siv ntau thiab ntau dua. Piv txwv li, kev siv titanium hlau anodes thiab titanium ntub chlorine gas coolers hauv Chlor-alkali kev lag luam tau ua tiav cov txiaj ntsig zoo ntawm kev lag luam thiab yog lub npe hu ua kev hloov pauv loj hauv Chlor-alkali kev lag luam.
Kev lag luam Chlor-alkali yog ib qho tseem ceeb ntawm kev lag luam raw khoom, thiab nws cov kev tsim khoom thiab kev loj hlob muaj txiaj ntsig zoo rau kev lag luam hauv lub tebchaws. Vim tias titanium muaj kev tiv thaiv corrosion zoo dua rau cov tshuaj chloride ions ntau dua li siv cov hlau tsis muaj steel thiab lwm yam hlau tsis muaj hlau. Tam sim no, titanium yog dav siv nyob rau hauv Chlor-alkali kev lag luam los tsim hlau anode electrolyzers, ionic membrane electrolyzers, ntub chlorine coolers, refined brine preheaters, thiab dechlorination yees, chlorine txias scrubbers, thiab lwm yam nyob rau hauv lub dhau los, lub ntsiab qhov chaw ntawm no. Cov khoom siv feem ntau yog ua los ntawm cov khoom tsis yog xim hlau (xws li graphite, polyvinyl chloride, thiab lwm yam). Vim tias cov khoom siv tsis zoo, kev ua haujlwm thermal stability thiab kev ua haujlwm ntawm cov khoom tsis yog xim hlau, cov khoom siv loj heev, siv zog, thiab siv sijhawm luv. , thiab cuam tshuam rau qhov zoo ntawm cov khoom tom ntej thiab ua paug rau ib puag ncig. Yog li ntawd, txij li xyoo 1970s, kev lag luam Chlor-alkali tau hloov pauv graphite electrolytic hlwb nrog hlau anode electrolytic hlwb thiab ionic membrane electrolytic cells thiab hloov graphite coolers nrog titanium ntub chlorine gas coolers, tag nrho cov uas tau ua tiav cov txiaj ntsig zoo.
Titanium anode electrolyzer
Piv txwv li, daim ntawv thov ntawm titanium ntub chlorine cooler, thiab ntsev electrolysis los tsim Chlor-alkali yuav tsim ib tug loj npaum li cas ntawm high-temperature ntub chlorine gas, qhov kub yog feem ntau yog 75-95 degree, thiab nws yuav tsum tau txias thiab qhuav ua ntej nws yuav siv tau. Kev tsim cov roj chlorine ua los ntawm electrolysis ntawm ntsev yav dhau los tau cuam tshuam rau kev tsim thiab zoo ntawm cov roj chlorine vim tsis tsim nyog cov txheej txheem txias los yog corrosion ntawm cov khoom cua txias, thiab tseem ua rau muaj kuab paug rau ib puag ncig. Titanium coolers resistant rau kub thiab ntub chlorine corrosion tau muab tso rau hauv ntau lawm, uas tau hloov lub outlook ntawm chlorine ntau lawm nyob rau hauv lub Chlor-alkali kev lag luam. Titanium yog tsis tshua muaj corrosion-resistant nyob rau hauv ib puag ncig ntawm kub thiab av chlorine gas. Tus nqi corrosion ntawm titanium hauv dej chlorinated ntawm chav tsev kub tsuas yog 0 xwb {8}}00565mm/a; Hauv dej chlorinated ntawm 80 degree, qhov corrosion ntawm titanium yog 0.00431mm / a; Hauv feem pua cov roj chlorine ntub dej, qhov corrosion ntawm titanium ntawm chav tsev kub yog 0.00096mm / a. Tom qab ntau cov nroj tsuag Chlor-alkali tau siv titanium ntub dej chlorine roj cua txias, qee qhov tau siv ze li ntawm 20 xyoo, thiab lawv tseem zoo li qub.
