Kemika formula: Na5P3O10
Kaumaha molekole: 367.86
Nā Waiwai: Pauka keʻokeʻo a i ʻole nā granules, maʻalahi ka hoʻoheheʻe ʻia i ka wai. Wahi a nā koi noi a me ka hana ʻana, hiki iā mākou ke hāʻawi i nā huahana o nā kikoʻī like ʻole e like me nā ʻano densities like ʻole (0.5-0.9g/cm3), nā solubilities like ʻole (10g, 20g/100ml wai), sodium tripolyphosphate koke, sodium tripolyphosphate ʻāpana nui, a pēlā aku.
Nā Hoʻohana:
1. I ka ʻoihana meaʻai, hoʻohana nui ʻia ia ma ke ʻano he mea hoʻomaikaʻi maikaʻi no ka meaʻai i loko o ka pahu, nā huahana waiū, nā wai huaʻai a me ka waiū soy; he mea paʻa wai a me ka palupalu no nā huahana ʻiʻo e like me ka ham a me ka ʻiʻo awakea; hiki iā ia ke hoʻopaʻa i ka wai, palupalu, hoʻonui a hoʻokeʻokeʻo i ka hana ʻana i nā huahana wai; hiki iā ia ke palupalu i ka ʻili o nā pīni ākea i loko o nā pīni ākea i loko; hiki ke hoʻohana ʻia ma ke ʻano he mea palupalu wai, mea hoʻopili chelating, mea hoʻoponopono PH a me ka thickener, a me ka ʻoihana pia.
2. Ma ke kahua ʻoihana, hoʻohana nui ʻia ia i nā detergents ma ke ʻano he mea kōkua, synergist kopa a me ka pale ʻana i ke kopa bar mai ka crystallizing a me ka pua ʻana, palupalu wai ʻoihana, mea hana pretanning ʻili, mea kōkua dyeing, mea hoʻomalu lepo luawai aila, mea pale haumia aila no ka hana pepa, mea hoʻolaha maikaʻi no ka mālama ʻana i nā suspensions e like me ka pena, kaolin, magnesium oxide, calcium carbonate, etc., a me ka mea hoʻopau ʻōpala seramika a me ka mea hōʻemi wai i ka ʻoihana seramika.
ʻO ke ʻano hoʻomākaukau kuʻuna o ka sodium polyphosphate, ʻo ia ke hoʻopau i ka waikawa phosphoric wela me kahi hapa nui o 75% H3PO4 me kahi hoʻokuʻu soda lehu e loaʻa ai kahi slurry neutralized me ka lakio Na/P o 5:3, a mālama iā ia i ka mahana ma 70℃ ~ 90℃; a laila e pīpī i ka slurry i loaʻa i loko o ka umu polymerization no ka dehydration ma ke ana wela kiʻekiʻe, a hoʻohuihui iā ia i loko o ka sodium tripolyphosphate ma kahi o 400℃. ʻAʻole pono wale kēia ʻano kuʻuna i ka waikawa phosphoric wela pipiʻi, akā hoʻopau pū i ka nui o ka ikehu wela; eia kekahi, i ka wā e hoʻomākaukau ai i ka slurry ma o ka neutralization, pono e hoʻomehana a wehe i ka CO2, a he paʻakikī ke kaʻina hana. ʻOiai hiki ke hoʻohana ʻia ka waikawa phosphoric pulu i hoʻomaʻemaʻe ʻia e ka kemika e pani i ka waikawa phosphoric wela e hana i ka sodium tripolyphosphate, ma muli o ke kiʻekiʻe o ka hao metala i loko o ka waikawa phosphoric pulu, he paʻakikī ke hoʻokō i nā koi maikaʻi o nā huahana sodium tripolyphosphate o kēia manawa, a he paʻakikī hoʻi ke hoʻokō i nā ʻōkuhi i kuhikuhi ʻia ma nā kūlana aupuni.
I kēia manawa, ua aʻo ka poʻe i kekahi mau kaʻina hana hou o ka sodium tripolyphosphate, e like me ka noi palapala Sila Nui Kina No. 94110486.9 "He ʻano hana no ka hana ʻana i ka sodium tripolyphosphate", No. 200310105368.6 "He hana hou no ka hana ʻana i ka sodium tripolyphosphate", No. 200410040357.9 "He ʻano hana no ka hana ʻana i ka sodium tripolyphosphate ma ke ʻano hana piha maloʻo-pulu", No. 200510020871.0 "He ʻano hana no ka hana ʻana i ka sodium tripolyphosphate ma ke ʻano hana hoʻokaʻawale pālua paʻakai a Glauber", 200810197998.3 "He ʻano hana no ka hana ʻana i ka sodium tripolyphosphate a me ka hana ʻana i ka ammonium chloride", a pēlā aku; ʻoiai he mau ʻano ponoʻī kēia mau hoʻonā loea, ʻo ka hapa nui o lākou e hoʻololi i nā mea maka neutralization.
Ke ʻano hana no ka hana ʻana i ka sodium tripolyphosphate me ka hoʻohana ʻana i ka sodium pyrophosphate maka
ʻO ka sodium pyrophosphate maka mua e komo i loko o ka pahu holoi paʻakai e wehe i ka hapa nui o ka sodium chloride, a laila komo i loko o ka pā a me ka mīkini kānana frame no ka kānana mua. Loaʻa i loko o ke keke kānana ka nui o ka sodium pyrophosphate, a ʻo ka nui o ka sodium chloride ma lalo o 2.5%. A laila, hoʻomehana ʻia ka hopena i 85°C i loko o ka pahu hoʻoheheʻe me ka mahu no ka hoʻoulu ʻana a me ka hoʻoheheʻe ʻana. Hoʻohui ʻia ka sodium sulfide i ka wā hoʻoheheʻe ʻana e wehe i nā ion metala. ʻO ka mea hiki ʻole ke hoʻoheheʻe ʻia he mau haumia e like me ke keleawe hydroxide. Kānana hou ʻia no ka lua o ka manawa. ʻO ka filtrate kahi hopena sodium pyrophosphate. Hoʻohui ʻia ke kalapona i hoʻāla ʻia i ka filtrate e wehe i nā pigments, hoʻohui ʻia ka waikawa phosphoric e acidify a hoʻolalelale i ka hoʻoheheʻe ʻana, a ʻo ka hope loa hoʻohui ʻia ka alkali wai e hoʻoponopono i ka waiwai pH i 7.5-8.5 e hoʻomākaukau i kahi wai i hoʻomaʻemaʻe ʻia.
Hoʻohana pololei ʻia kekahi hapa o ka wai i hoʻomaʻemaʻe ʻia i loko o ka ʻāpana hoʻomākaukau wai hoʻopau sodium tripolyphosphate, a ʻo kekahi hapa o ka wai i hoʻomaʻemaʻe ʻia e hoʻopili ʻia i loko o ka crystallizer DTB. Hoʻomaʻalili ʻia ka wai i hoʻomaʻemaʻe ʻia i loko o ka crystallizer DTB i loko o ka mea hoʻololi wela e kahi pamu hoʻohele i hoʻoikaika ʻia a me ka wai 5°C i hoʻouna ʻia e ka chiller. Ke hāʻule ka mahana o ka hopena i 15°C, hoʻopili ʻia i loko o nā flocs a laila lawe ʻia i ka pahu kiʻekiʻe a centrifuged i loko o ka centrifuge no ka hoʻokaʻawale centrifugal e loaʻa ai nā kristal sodium pyrophosphate. Hoʻohui ʻia nā kristal sodium pyrophosphate i ka ʻāpana hoʻomākaukau wai hoʻopau i ke kaʻina hana hana sodium tripolyphosphate a hui pū ʻia me ka waikawa phosphoric a me ka soda caustic wai e hoʻomākaukau i ka wai neutralization ma ke ʻano he mea maka no ka hana ʻana o ka sodium tripolyphosphate. Hoʻihoʻi ʻia ka brine i ʻōlelo ʻia ma luna e holoi i ka sodium pyrophosphate maka; ke hiki ka nui o ka sodium chloride i loko o ka brine i ka saturation, hoʻopili ʻia ka brine i loko o ka pahu buffer, a hoʻopili ʻia ka brine i loko o ka pahu buffer i loko o ka ʻaʻahu duct kinoea huelo sodium tripolyphosphate e hoʻololi i ka wela me ke kinoea huelo wela kiʻekiʻe. Ma hope o ka hoʻololi wela, hoʻi hou ka brine i ka pahu buffer no ka mahu ʻana o ka pīpī.
Hoʻokaʻaʻike:
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