Phoob Thav

Phosphate yog ib qho ntawm cov khoom xyaw ntuj ntawm yuav luag txhua yam zaub mov, thiab yog siv dav hauv kev ua zaub mov noj ua ib qho tseem ceeb khoom noj khoom haus thiab ua rau lub cev ntxiv.

Lub ntuj phosphate yog phosphate pob zeb (muaj calcium phosphate). Sulfuric acid reacts nrog pob zeb phosphate los tsim calcium dihydrogen phosphate thiab calcium sulfate uas tuaj yeem nqus tau los ntawm cov nroj tsuag los tsim phosphate.

Phosphates tuaj yeem faib ua orthophosphates thiab polycondensed phosphates: cov phosphates siv hauv kev ua zaub mov feem ntausodium, calcium, potassium, thiab ntsev thiab hlau thiab ntsev li kev txhim kho kev noj haus. Muaj ntau tshaj 30 ntau yam,

Sodium phosphate yog qhov noj lub ntsiab ntawm cov zaub mov hauv tsev phosphate. Nrog txoj kev loj hlob ntawm kev ua zaub mov noj thev naus laus zis, kev noj ntawmpoov tshuaj ntsevyog tseem nce xyoo los ntawm lub xyoo.

Txhawm rau muab kev ua si tag nrho rau cov teebmeem synergistic ntawm ntau phosphates thiab phosphates thiab lwm yam kev ntxiv, thiab ua tau raws li kev xav tau ntawm kev tsim khoom noj khoom haus thev naus laus zis, ntau cov compound phosphates feem ntau yog siv cov khoom xyaw ua zaub mov thiab ua haujlwm ntxiv rau hauv kev siv. Kev tshawb nrhiav thiab kev tsim cov tshuaj phosphate tau dhau los ua kev qhia kev txhim kho thiab txhim kho daim ntawv qhia zaub mov phosphate.

Hauv kev ua liaj ua teb, ntsev yog ib qho ntawm peb qhov tseem ceeb ntawm cov nroj tsuag thiab cov tseem ceeb ntawm cov chiv. Phosphate pob zeb hmoov yog mined los ntawm phosphorus txheej ntawm sedimentary pob zeb. Hauv yav dhau los, nws tuaj yeem siv tsis tau ua tiav tom qab kev khawb av, tab sis tam sim no kev siv cov tshuaj phosphate tsuas yog siv rau kev ua liaj ua teb. Feem ntau, nws yuav raug tshuaj los ua cov kua qaub superphosphate, superphosphate lossis ammonium dihydrogen phosphate. Lawv qhov kev kub siab yog siab dua li ntawm phosphate, thiab lawv muaj soluble ntau hauv dej, yog li cov nroj tsuag tuaj yeem nqus tau nws nrawm dua.