Tshuaj mis: NAPS5O10
Molecular hnyav: 367.86
Cov Khoom: Cov hmoov dawb dawb lossis cov granules, yooj yim soluble hauv dej. Raws li daim ntawv thov thiab kev ua cov kev xav tau, peb tuaj yeem muab cov khoom lag luam ntau yam xws li tripolyphosphate, loj-particle sodium trunkolyphosphate, thiab lwm yam.
Siv:
1.Txoj kev lag luam khoom noj khoom haus, nws tsuas yog siv los ua cov khoom siv hauv kaus poom, cov kua txiv uas yog kua txiv ntoo thiab kua mis; dej tuav thiab tenderizer rau nqaij khoom xws li cov nqaij npua thiab noj su; Nws tuaj yeem khaws dej, ua si, nthuav dav thiab tshuaj dawb hauv kev ua cov khoom muaj dej; Nws tuaj yeem soften daim tawv nqaij ntawm cov taum dav hauv cov kaus poom dav hlau; Nws kuj tseem siv tau los ua dej muag muag, chelating tus neeg sawv cev, PH REGULATOR thiab tuab, nrog rau kev lag luam npias.
2. Nyob rau hauv cov lag luam lag luam, nws yog dav siv nyob rau hauv cov neeg sawv cev, siv cov dej qias neeg, cov roj ua kom muaj kuab txhuas zoo li, cov roj ua kom zoo nkauj Lwm yam, thiab tej hub Degumming tus neeg sawv cev thiab Reducer hauv kev lag luam kev lag luam ceramic.
Cov kev npaj ib txwm npaj txoj kev ntawm cov sodium polyphosphate yog kom neutralize bosphoric acid nrog ib tug na / p piv txwv ntawm 5: 3, thiab khaws cia sov ntawm 70 ℃ ~ 90 ℃; Tom qab ntawd tsuag tau slurry rau hauv lub tshuab ua kom sov rau lub cev qhuav dej rau cov dej sov siab, thiab xaws nws mus rau sodium tripolyphotphate ntawm li 400 ℃. Cov qauv ib txwm muaj tsuas yog yuav tsum tau kim kim phosphoric acid, tab sis kuj noj ntau lub zog cua sov; Tsis tas li ntawd, thaum npaj cov slurry los ntawm kev nruab nrab, nws yog qhov tsim nyog yuav ua kom sov thiab tshem tawm Co2, thiab cov txheej txheem nyuaj. Txawm hais tias lim dej ntub phosphoric acid tuaj yeem siv los hloov cov khoom siv hlau ua kom tau cov khoom siv ntub dej, thiab nws tseem nyuaj kom tau raws li cov qauv ntsuas tau teev tseg hauv cov qauv hauv tebchaws.
Tam sim no cov tib neeg tau kawm qee cov txheej txheem ntau lawm ntawm sodium tripolyphosphate ", Tsis muaj ib txoj kev rau kev tsim cov sodium tripolyphosphate los ntawm qhuav-cov qauv sib tw ", No. 200510020871.0" Ib txoj kev rau kev tsim cov sodium tripolyphosphate thiab los ntawm kev tsim ammonium chloride ", thiab lwm yam; thiab lwm yam; Txawm hais tias cov kev daws teeb meem no muaj lawv tus cwj pwm, feem ntau ntawm lawv yog hloov pauv cov ntaub ntawv nruab nrab raw.
Txoj kev rau kev tsim cov sodium tripolyphosphathphothphathphothphathphathum siv cov sodium
Cov neeg nyoos sodium pyrophosphate thawj nkag mus rau hauv lub tshuab ntxhua khaub ncaws ntsev kom tau tshem tawm feem ntau ntawm cov phaj ntsev thiab tom qab siv lub lim nias rau kev ua raws cai thawj zaug. Lub lim ncuav mog qab zib muaj ntau npaum li cas ntawm sodium pyrophosphate, thiab cov loj concortration ntawm sodium chloride yog tsawg dua 2.5%. Tom qab ntawd, kev daws teeb meem yog rhuab rau 85 ° C hauv chav ua paug nrog chav rau nplawm thiab yaj. Sodium Sulfide tau ntxiv thaum xaus rau tshem tawm cov hlau ions. Cov teeb meem insoluble yog impurities xws li tooj liab hydroxide. Nws yog lim dua rau zaum ob. Qhov freadate yog sodium pyrophosphate tov. Ua kom tau cov pa roj carbon tau ntxiv rau cov filtrate kom tshem tawm cov posphoric, thiab thaum kawg kua alkali tau ntxiv los kho tus nqi PH rau 7.5-8 los npaj lub kua ua kua.
Ib feem ntawm cov kua ua kom zoo yog siv rau hauv sodium tripolyphosphatau ua kua rau hauv dtb crystallizer. Cov kua ua kua hauv dtb crystallizer yog txias hauv kev ua pa kub los ntawm kev sib tw sib tw ntawm kev tso kua mis thiab 5 ° C dej xa los ntawm Chiller. Thaum cov kev daws teeb meem kub poob rau 15 ° C, nws yog crystallized rau hauv cov flocs thiab tom qab ntawd thauj mus rau Centrifuge soligation kom tau sodium pyrophosphate muaju. Cov sodium pyrophosphate muaju ntxiv rau ntu nruab nrab ntawm cov khoom siv ntawm cov sodium didolyphosate ntau lawm ntawm cov sodium tripolyphosphate. Qhov saum toj no-hais brine yog rov qab los ntxuav cov tsream sodium pyrophosphate; Thaum cov ncauj lus sodium chloride cov ntsiab lus hauv lub brine mus txog rau hauv cov sodium tradolyphosphate tw los pauv cov cua sov nrog cov pa taws kub-kub. Lub brine tom qab kev sib pauv hloov pauv rov qab mus rau lub tuffer tormer rau tshuaj tsuag evaporation.
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Lub Sijhawm Post: Nov-11-2024