Kev npaj ntawm Platinum Tetrachloride
Oct 28, 2021
Kev lag luam platinum tuaj yeem tsim los ntawm txoj kev qhuav los ntawm platinum ore, los yog cov khoom lag luam uas tsim thaum lub sij hawm tsim cov tooj liab thiab npib tsib xee los ntawm tooj liab thiab npib tsib xee sulfide ore ua raw cov ntaub ntawv, uas tuaj yeem tsim los ntawm kev ntub dej smelting.
Nyob rau hauv txoj kev ntub dej, aqua regia yog ntxiv rau cov khoom seem ntawm cov rho tawm nickel thiab tooj liab rau kev rho tawm, pom, thiab ammonium chloride yog ntxiv rau cov lim kom hnov mob ua kom muaj ammonium chloroplatinate nag lossis daus, uas yog lim thiab rhaub kom decompose cov ammonium chloroplatinate. los tsim Tau txog 99.99% platinum tiav cov khoom. Los yog ntxiv cov tshuaj ammonium chloroplatinate rau hauv lub cell electrolytic, thiab ua electrolysis ntawm lub xov tooj ntawm tes ntawm li 1.5 V thiab qhov ceev tam sim no ntawm 2 mus rau 3 A / cm3 kom tau txais cov khoom platinum txog 99.98%.
Muab cov chloroplatinic acid tso rau hauv lub nkoj hauv ib lub khob iav thiab maj mam nce qhov kub ntawm 60 ° C mus rau 150 ° C kom ua tiav cov dej tsis huv. Txuas ntxiv kom sov li 275-300 ° C hauv 2h, khaws cia rau ib nrab ib teev, thiab tom qab ntawd txo qhov kub mus rau 150 ° C. Tom qab cov khoom raug tshem tawm thiab crushed sai sai, nws muab tso rau hauv ib lub nkoj dua thiab rhuab mus rau 275 ° C nyob rau hauv ib tug kwj ntawm chlorine. Cia nws sov li ib nrab teev, thiab muab cov khoom tso rau hauv lub raj mis kaw thaum nws kub.
