Cov mis tshuaj: Na5P3O10
Qhov hnyav molecular: 367.86
Cov Khoom: Hmoov dawb los yog granules, yooj yim yaj hauv dej. Raws li daim ntawv thov thiab kev ua cov kev cai, peb tuaj yeem muab cov khoom ntawm ntau yam kev qhia xws li qhov sib txawv pom tseeb (0.5-0.9g / cm3), solubilities sib txawv (10g, 20g / 100ml dej), instant sodium tripolyphosphate, loj-particle sodium tripolyphosphate, thiab lwm yam.
Siv:
1. Hauv kev lag luam khoom noj, nws feem ntau yog siv los ua cov khoom zoo rau cov khoom noj hauv qab, cov khoom noj mis nyuj, cov kua txiv hmab txiv ntoo thiab cov mis taum pauv; ib qho khoom khaws dej thiab cov khoom mos rau cov khoom nqaij xws li nqaij npua thiab nqaij noj su; nws tuaj yeem khaws dej, mos, nthuav dav thiab ua kom dawb hauv kev ua cov khoom hauv dej; nws tuaj yeem ua rau daim tawv nqaij ntawm cov taum dav hauv cov taum dav hauv qab; nws kuj tseem tuaj yeem siv ua cov khoom mos dej, tus neeg sawv cev chelating, PH regulator thiab thickener, nrog rau hauv kev lag luam npias.
2. Hauv kev lag luam, nws yog siv dav hauv cov tshuaj ntxuav tes ua tus neeg sawv cev pabcuam, xab npum synergist thiab tiv thaiv cov xab npum los ntawm crystallizing thiab blooming, industrial dej softener, tawv pretanning tus neeg sawv cev, dyeing auxiliary, roj qhov dej av tswj tus neeg sawv cev, roj av tiv thaiv kev ua qias tuaj rau papermaking, zoo dispersant rau kev kho cov suspensions xws li xim, kaolin, magnesium oxide, calcium carbonate, thiab lwm yam, thiab ceramic degumming tus neeg sawv cev thiab dej reducer hauv ceramic kev lag luam.
Txoj kev npaj ib txwm ntawm sodium polyphosphate yog kom neutralize kub phosphoric acid nrog ib feem loj ntawm 75% H3PO4 nrog cov dej qab zib tshauv suspension kom tau txais cov slurry neutralized nrog Na / P piv ntawm 5: 3, thiab khaws nws sov ntawm 70 ℃ ~ 90 ℃; tom qab ntawd tsuag cov slurry tau txais rau hauv lub cub tawg polymerization rau dehydration ntawm qhov kub siab, thiab condense nws mus rau hauv sodium tripolyphosphate ntawm txog 400 ℃. Txoj kev ib txwm no tsis tsuas yog xav tau kim kub phosphoric acid, tab sis kuj siv ntau lub zog cua sov; ntxiv rau, thaum npaj cov slurry los ntawm neutralization, nws yog qhov tsim nyog los ua kom sov thiab tshem tawm CO2, thiab cov txheej txheem yog qhov nyuaj. Txawm hais tias cov tshuaj ntxuav phosphoric acid ntub dej tuaj yeem siv los hloov cov kub phosphoric acid los tsim sodium tripolyphosphate, vim muaj cov ntsiab lus siab ntawm cov hlau hlau hauv cov dej phosphoric acid ntub dej, nws nyuaj rau ua kom tau raws li qhov xav tau zoo ntawm cov khoom sodium tripolyphosphate tam sim no, thiab nws kuj nyuaj rau ua kom tau raws li cov ntsuas teev tseg hauv cov qauv hauv tebchaws.
Tam sim no, tib neeg tau kawm txog qee cov txheej txheem tsim khoom tshiab ntawm sodium tripolyphosphate, xws li daim ntawv thov patent Suav No. 94110486.9 "Ib txoj kev tsim cov sodium tripolyphosphate", No. 200310105368.6 "Ib txoj kev tshiab rau kev tsim cov sodium tripolyphosphate", No. 200410040357.9 "Ib txoj kev tsim cov sodium tripolyphosphate los ntawm txoj kev qhuav-ntub dav dav", No. 200510020871.0 "Ib txoj kev tsim cov sodium tripolyphosphate los ntawm Glauber's ntsev ob chav decomposition txoj kev", 200810197998.3 "Ib txoj kev tsim cov sodium tripolyphosphate thiab los ntawm kev tsim cov ammonium chloride", thiab lwm yam; txawm hais tias cov kev daws teeb meem no muaj lawv tus kheej cov yam ntxwv, feem ntau ntawm lawv yog hloov cov khoom siv raw neutralization.
Txoj kev tsim cov sodium tripolyphosphate siv cov sodium pyrophosphate nyoos
Cov sodium pyrophosphate nyoos ua ntej nkag mus rau hauv lub tank ntxuav ntsev kom tshem tawm feem ntau ntawm sodium chloride, thiab tom qab ntawd nkag mus rau hauv lub phaj thiab lub thav duab lim xovxwm rau kev lim thawj zaug. Lub ncuav mog qab zib lim muaj ntau ntawm sodium pyrophosphate, thiab qhov concentration ntawm sodium chloride tsawg dua 2.5%. Tom qab ntawd, cov tshuaj raug cua sov rau 85 ° C hauv lub tank yaj nrog lub zog rau kev sib tov thiab yaj. Sodium sulfide raug ntxiv thaum lub sijhawm yaj kom tshem tawm cov hlau ions. Cov khoom tsis yaj yog cov khoom tsis huv xws li tooj liab hydroxide. Nws raug lim dua rau lub sijhawm thib ob. Lub lim dej yog cov tshuaj sodium pyrophosphate. Cov pa roj carbon activated raug ntxiv rau hauv lub lim dej kom tshem tawm cov xim, phosphoric acid raug ntxiv rau acidify thiab ua kom sai sai yaj, thiab thaum kawg kua alkali raug ntxiv los kho tus nqi pH rau 7.5-8.5 los npaj cov kua dej refined.
Ib feem ntawm cov kua dej ua kom huv si yog siv ncaj qha rau hauv qhov chaw npaj kua sodium tripolyphosphate neutralization, thiab lwm feem ntawm cov kua dej ua kom huv si yog pumped rau hauv DTB crystallizer. Cov kua dej ua kom huv si hauv DTB crystallizer raug txias hauv lub tshuab hloov pauv cua sov los ntawm lub twj tso kua mis thiab 5 ° C dej xa los ntawm lub tshuab txias. Thaum qhov kub ntawm cov tshuaj poob rau 15 ° C, nws raug crystallized rau hauv flocs thiab tom qab ntawd thauj mus rau lub tank siab thiab centrifuged rau hauv centrifuge rau kev sib cais centrifugal kom tau txais sodium pyrophosphate crystals. Cov sodium pyrophosphate crystals raug ntxiv rau qhov chaw npaj kua dej ua kom huv si hauv cov txheej txheem tsim sodium tripolyphosphate thiab sib xyaw nrog phosphoric acid thiab kua caustic soda los npaj cov kua dej ua kom huv si ua cov khoom siv raw rau kev tsim sodium tripolyphosphate. Cov brine saum toj no raug xa rov qab los ntxuav cov sodium pyrophosphate nyoos; thaum cov sodium chloride ntsiab lus hauv brine ncav cuag saturation, cov brine raug pumped rau hauv lub tank buffer, thiab cov brine hauv lub tank buffer raug pumped rau hauv sodium tripolyphosphate tail gas duct lub tsho kom pauv cua sov nrog cov roj kub siab. Cov brine tom qab pauv cua sov rov qab mus rau lub tank buffer rau kev txau evaporation.
Tiv tauj:
Beijing Shipuller Co., Ltd
WhatsApp: +86 18311006102
Lub vas sab hauv internet: https://www.yumartfood.com/
Lub sijhawm tshaj tawm: Kaum Ib Hlis-11-2024