Peb txhua tus paub tias muaj ob hom diammonium phosphate tam sim no nyob rau hauv kev ua lag luam. Ib qho yog diammonium phosphate nrog cov ntsiab lus ntawm 57%, thiab lwm yam yog diammonium phosphate nrog cov ntsiab lus ntawm 64%. Dab tsi yog qhov txawv ntawm ob diammonium phosphates?
Qhov twg yog qhov tsim nyog?
Qhov sib txawv ntawm ob qho tib si yog qhov tseem ceeb hauv peb yam hauv qab no:
Ua ntej, cov ntsiab lus ntawm cov zaub mov txawv. Ob lub diammoniums tsuas muaj nitrogen thiab phosphorus thiab tsis muaj poov tshuaj. Ntawm lawv, 57% diammonium phosphate muaj 15% nitrogen thiab 42% phosphorus pentoxide; Thaum 64% diammonium phosphate muaj 18% nitrogen, 46% phosphorus pentoxide thiab 64% diammonium phosphate. Tag nrho cov zaub mov muaj ntau dua.
Qhov thib ob, cov txheej txheem ntau lawm yog txawv. 57% diammonium phosphate feem ntau yog tsim los ntawm txoj kev slurry. Ntawd yog, tom qab rho tawm phosphoric acid los ntawm phosphate pob zeb hmoov nrog dilute sulfuric acid, ammonia gas yog qhia ncaj qha, thiab tom qab ntawd concentrated los tsim diammonium phosphate, uas muaj cov purity tsawg thiab cov ntsiab lus tsis zoo. 64% ntawm diammonium phosphate feem ntau yog tsim los ntawm kev siv tshuaj. Ntawd yog, dilute sulfuric acid yog thawj zaug ntxiv rau phosphate pob zeb hmoov kom rho tawm phosphoric acid, thiab tom qab ntawd cov phosphoric acid yog concentrated, thiab ntau cov teeb meem insoluble thiab impurities hauv phosphoric acid raug tso tawm. Tom qab ntawd ammonia roj tau qhia. Yog li ntawd, cov diammonium tsim los ntawm cov txheej txheem ib txwm muaj tsawg impurities, siab purity, thiab dav siv.
Thib peb, tus nqi sib txawv heev. 57% diammonium phosphate muaj cov txheej txheem tsim khoom yooj yim, cov ntsiab lus tsis zoo, ntau impurities, thiab pheej yig heev. Tus nqi muag khoom tam sim no feem ntau yog 18.5$ ib lub hnab; thaum 64% diammonium phosphate yuav tsum tau concentrated phosphoric acid ua ntej, thiab cov txheej txheem ntau lawm yog complex thiab nyuaj. , diammonium muaj siab purity thiab nws cov nqi muag khoom kuj siab. Tus nqi muag khoom tam sim no feem ntau yog 185 $ rau ib lub hnab.
Nws tuaj yeem pom los ntawm ob txoj kev tsim khoom ntawm diammonium phosphate uas 64% diammonium phosphate muaj ntau yam kev siv vim nws txoj kev tsim khoom nyuaj, siab purity, thiab zoo dua. Nws tsis tuaj yeem siv rau cov qoob loo xws li nplej, nplej, thiab pob kws. Nws kuj tseem siv tau rau cov qoob loo legume uas xav tau phosphorus ntau dua.
