Tsarin samar da sodium metasilicate pentahydrate

Sodium metasilicate pentahydrate Production tsari

Hanyoyin da aka haɗa na sodium metasilicate sun haɗa da hanyar bushewa ta fesa, hanyar narke solidification crystallization, hanyar granulation lokaci daya da kuma hanyar crystallization bayani.

A crystallization tsari yana da halaye na kasa kayan aiki zuba jari, low samar kudin da barga ingancin. Ana nuna kwararar tsari kamar haka

Tsarin samar da sodium metasilicate pentahydrate

2.1 Tasirin taro na crystal

Sodium metasilicate pentahydrate an shirya shi ta hanyar tsari crystallization mafita. Dangane da zane na lokaci [3], ya kamata a sarrafa maida hankali na maganin crystallization (Na2O + SiO2) muddin

Sodium metasilicate pentahydrate za a iya samar a cikin kewayon 25% ~ 28% (jama'a juzu'i). Koyaya, akwai isassun N a2O da SiO 2 a cikin maganin

Adadin ya shafi juna. Matsakaicin juzu'i na 8i02 yana da girma, lokacin crystallization yana da tsayi, kuma adadin sarkar n (Na2O)/n (SiO2) da ake amfani da shi kai tsaye shine 1,

Maganin da ke ɗauke da juzu'in 58% na taro an sanya shi crystallized, kuma an ƙara iri crystal. A crystallization sake zagayowar daukan 72 ~ 120h; Babban abun ciki na Na2O

Gudun yana da sauri, amma saurin crystallization na sauri yana da sauƙi don haifar da ƙwayoyin kristal masu kyau, ƙarin Na2O da aka haɓaka ta haɓakar crystal, kuma yanayin samfurin yana da wahala a kai.

Don buƙatun, duba Table 1.

lokacin crystallization

2.2 Tasirin iri

A cikin crystallization tsari na sodium metasilicate, domin sarrafa crystal quality da kuma samun samfurori tare da uniform barbashi size

Add crystal tsaba tare da dace barbashi size da yawa, kuma a hankali motsa dukan tsari don sa crystal tsaba da aka dakatar a ko'ina a cikin dukan bayani.

Rage adadin nucleation na biyu, ta yadda kayan da aka yi crystallized kawai ke tsiro a saman nau'in crystal.

Adadin kristal iri da aka ƙara ya dogara da inganci, iri-iri da girman barbashi na samfurin wanda za'a iya yin crystallized yayin aikin gabaɗayan crystallization da samfurin da ake so.

A granularity na. Zaton cewa ba a samar da iri na farko na nucleating a cikin tsari ba, adadin barbashi a cikin ƙãre samfurin ya yi daidai da adadin sabbin ƙwayoyin iri na wucin gadi.

Mp/KvpLp3=Ms/KvLs3P, sai M s=Mp (Ls/Lp) 3

Inda: M s, M p —— ingancin iri crystal da ƙãre samfurin; Ls, LP -- matsakaita girman barbashi na iri crystal da ƙãre samfurin; K v, P metasilic acid

Dukiyar jiki na sodium.

Don tsarin crystallization na sodium metasilicate aqueous bayani, bisa ga bincike na crystal lokaci mika mulki, saboda kunkuntar nisa na metastable yankin, yana da sauki shigar.

A cikin yanki mara ƙarfi, ana ƙara tsaba tare da girman barbashi na 0.1-0.2mm gabaɗaya. Idan ana buƙatar matsakaicin girman barbashi na ƙãre samfurin ya zama 1mm La'akari da wanda ba zai yuwu ba

The nucleation yawa na free bayani kanta ne 40% ~ 60% na taro juzu'i lokacin da 0.1 m crystal tsaba da aka zahiri kara.

2.3 Tasirin yanayin zafi

Tsarin crystallization na sodium metasilicate pentahydrate yana kula da zafin jiki, kuma haɓakar kristal ɗin sa yana buƙatar shiga ta hanyar ƙaddamarwa, wanda aka karɓa tsakanin 50-60 ℃

Ana sarrafa jimillar adadin ƙwayoyin kristal ta hanyar ƙara tsaba na crystal zuwa mafita, sannan kristal ya girma a daidaitaccen adadin a ƙarƙashin ɗan ƙaramin zafin jiki da ƙari. A cikin mataki na gaba na crystallization, kwantar da hankali a cikin adadin 1 ℃ a minti daya don sa crystal yayi girma da sauri, kuma raba kayan lokacin da ya kai 38-48 ℃

2.4 Tasirin sauran abubuwan ƙari

Domin sauƙaƙe rabuwa da ruwa kyauta da crystal a lokacin aikin rabuwa, rabon 0.005% ~ 0.015% na adadin adadin za a dauka 0.5h kafin ƙarshen sanyaya.

Za'a iya rage tashin hankali tsakanin crystal da ruwa ta ƙara dodecyl sulfonic acid surfactant sau ɗaya, wanda zai iya 'yantar da samfurin rigar.

Ruwa yana raguwa ƙasa da 4% don bushewa da adanawa


Lokacin aikawa: Oktoba-13-2022
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