Mushonga wekemikari: Na5P3O10
Molecular uremu: 367.86
Properties: White poda kana granules, nyore soluble mumvura. Zvinoenderana nezvinodiwa zvekushandisa uye zvekugadzirisa, tinogona kupa zvigadzirwa zveakasiyana-siyana akadai seakasiyana anooneka densities (0.5-0.9g/cm3), akasiyana solubilities (10g, 20g/100ml mvura), instant sodium tripolyphosphate, hombe-particle sodium tripolyphosphate, etc.
Zvishandiso:
1.Muchikafu chekudya, inonyanya kushandiswa sehutano hwekuvandudza kwezvokudya zvekakani, zvigadzirwa zvemukaka, zvinwiwa zvejusi yemichero uye mukaka we soy; muchengeti wemvura uye tenderizer yezvigadzirwa zvenyama senge ham uye nyama yekudya kwemasikati; inogona kuchengetedza mvura, kunyorova, kuwedzera uye bleach mukugadziriswa kwezvigadzirwa zvemvura; inogona kupfavisa ganda rebhinzi yakakura mumagaba bhinzi yakafara; inogonawo kushandiswa semvura inopfavisa, chelating agent, PH regulator uye thickener, pamwe chete muindasitiri yedoro.
2. Mundima yeindasitiri, inoshandiswa zvakanyanya mukuchenesa seanobatsira mumiriri, sipo synergist uye kudzivirira sipo yebha kubva kukristaro uye kutumbuka, kunyorovesa mvura yeindasitiri, yeganda pretanning agent, dhayi rinobatsira, oiri tsime rekudzora matope, kudzivirira kusvibiswa kwemafuta. mumiririri wekugadzira mapepa, anoparadzira anobudirira ekurapa kwekumisikidza senge pendi, kaolin, magnesium. oxide, calcium carbonate, nezvimwewo, uye ceramic degumming agent uye inoderedza mvura muindasitiri yeceramic.
Iyo yechinyakare yekugadzirira nzira ye sodium polyphosphate ndeyekuita neutralize inopisa phosphoric acid ine chikamu chikuru che75% H3PO4 ine soda ash suspension kuti iwane neutralized slurry ine Na/P reshiyo ye5:3, uye ichengete ichidziya pa70℃ ~. 90℃; wobva wapfapfaidza slurry yakawanikwa muchoto chepolymerization chekudzikisa mvura patembiricha yakakwira, uye woiisa mu sodium tripolyphosphate panenge 400 ℃. Iyi nzira yechinyakare haidi chete inodhura inopisa phosphoric acid, asi zvakare inoshandisa yakawanda yekupisa simba; uyezve, pakugadzirira slurry nekusagadzikana, zvakakosha kupisa uye kubvisa CO2, uye iyo nzira yakaoma. Kunyangwe makemikari akacheneswa wet phosphoric acid inogona kushandiswa kutsiva inopisa phosphoric acid kugadzira sodium tripolyphosphate, nekuda kweiyo yakakwira yesimbi iron mune wet phosphoric acid, zvakaoma kuzadzisa zvinodiwa zvemhando yezvino sodium tripolyphosphate zvigadzirwa, uye zvakare. zvakaoma kuzadzisa zviratidzo zvinotsanangurwa mumitemo yenyika.
Parizvino, vanhu vakadzidza mamwe maitiro matsva ekugadzirwa kwe sodium tripolyphosphate, yakadai seChinese patent application No. 94110486.9 "Nzira yekugadzira sodium tripolyphosphate", Nha. yekugadzira sodium tripolyphosphate nekuoma-kunyorova comprehensive method ", No. 200510020871.0 "Nzira yekugadzira sodium tripolyphosphate neGlauber's salt double decomposition method", 200810197998.3 "Nzira yekugadzira sodium tripolyphosphate uye ne-kubudisa ammonium chloride", nezvimwewo; kunyangwe izvi zvigadziriso zvehunyanzvi zvine hunhu hwazvo, mazhinji acho ndeekuchinja neutralization mbishi zvinhu.
Nzira yekugadzira sodium tripolyphosphate uchishandisa crude sodium pyrophosphate
Iyo crude sodium pyrophosphate inotanga kupinda munyu yekugezesa tangi kuti ibvise yakawanda yesodium chloride, yobva yapinda mundiro uye furemu yefirita yekusefa yekutanga. Iyo keke yekusefa ine yakawanda yesodium pyrophosphate, uye kuwanda kwesodium chloride isingasviki 2.5%. Zvadaro, chigadziro chinopisa kusvika ku85 ° C mune tangi yekuparara nemhepo yekukurudzira uye kunyunguduka. Sodium sulfide inowedzerwa panguva yekunyunguduka kubvisa simbi ions. Iyo insoluble nyaya itsvina yakaita semhangura hydroxide. Inosefa zvakare kechipiri. Iyo filtrate ndeye sodium pyrophosphate solution. Activated carbon inowedzerwa kune filtrate kubvisa pigments, phosphoric acid inowedzerwa ku acidify uye kukurumidza kupera, uye pakupedzisira alkali yemvura inowedzerwa kugadzirisa pH kukosha ku 7.5-8.5 kugadzirira mvura yakacheneswa.
Chimwe chikamu chemvura yakacheneswa inoshandiswa zvakananga muchikamu chesodium tripolyphosphate neutralization liquid gadziriro, uye chimwe chikamu chemvura yakacheneswa inoputirwa muDTB crystallizer. Mvura yakanatswa muDTB crystallizer yakanyoroveswa mumudziyo wekupisa nekumanikidzirwa kutenderera pombi uye 5 ° C mvura inotumirwa nechiller. Kana tembiricha yemhinduro inodonha kusvika 15 ° C, inonatswa kuita flocs yozotakurwa kuenda kutangi repamusoro-soro uye centrifuge mu centrifuge yekuparadzanisa centrifugal kuti iwane sodium pyrophosphate crystals. Iyo sodium pyrophosphate makristasi anowedzerwa kune neutralization mvura yekugadzirira chikamu mune sodium tripolyphosphate kugadzirwa maitiro uye yakasanganiswa nephosphoric acid uye liquid caustic soda kugadzirira neutralization mvura seyakagadzirwa kugadzirwa kwe sodium tripolyphosphate. Iyo brine yataurwa pamusoro inodzoserwa kushambidza crude sodium pyrophosphate; kana iyo sodium chloride iri mu brine inosvika pakuzara, brine inopombwa mubhafa tangi, uye brine iri mubuffer tank inopombwa mu sodium tripolyphosphate muswe gasi duct jaketi kuchinjana kupisa nepamusoro-tembiricha gasi remuswe. Iyo brine mushure mekupisa kupisa inodzokera kubhafa tangi yekupfapfaidza yekupfapfaidza.
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Nguva yekutumira: Nov-11-2024