Sodium Tripolyphosphate Product Description

Chilinganizo cha mankhwala: Na5P3O10
Kulemera kwa molekyulu: 367.86
Katundu: ufa woyera kapena ma granules, osungunuka mosavuta m'madzi. Malinga ndi ntchito ndi pokonza zofunika, titha kupereka mankhwala a specifications zosiyanasiyana monga kachulukidwe osiyana zikuoneka (0.5-0.9g/cm3), solubilities osiyana (10g, 20g/100ml madzi), pompopompo sodium tripolyphosphate, lalikulu tinthu sodium tripolyphosphate, ndi zina.

a

Zogwiritsa:

1.M'makampani azakudya, amagwiritsidwa ntchito makamaka ngati chowongolera bwino chazakudya zam'chitini, mkaka, zakumwa zamadzi a zipatso ndi mkaka wa soya; chosungira madzi ndi chophikira nyama monga ham ndi nyama yachakudya cham'mawa; imatha kusunga madzi, kufewetsa, kukulitsa ndi kuyeretsa pokonza zinthu zam'madzi; imatha kufewetsa khungu la nyemba zazikulu zamzitini zazikulu; itha kugwiritsidwanso ntchito ngati chofewetsa madzi, chelating agent, PH regulator ndi thickener, komanso m'makampani amowa.

2. M'munda wamafakitale, amagwiritsidwa ntchito kwambiri muzotsukira ngati wothandizira, sopo synergist ndikuletsa sopo kuti zisapangike komanso kuphuka, chofewa chamadzi am'mafakitale, chopangira chikopa cha pretanning, utoto wothandizira, wowongolera matope bwino, kupewa kuipitsidwa kwamafuta. wothandizira kupanga papermaking, dispersant yothandiza pochiza kuyimitsidwa monga utoto, kaolin, magnesium oxide, calcium carbonate, ndi zina zotero, ndi ceramic degumming agent ndi madzi ochepetsera m'makampani a ceramic.

b

Njira yachikhalidwe yokonzekera sodium polyphosphate ndikuchepetsa kutentha kwa phosphoric acid ndi gawo lalikulu la 75% H3PO4 ndi kuyimitsidwa kwa phulusa la soda kuti mupeze slurry yopanda malire ndi chiŵerengero cha Na/P cha 5:3, ndikusunga kutentha pa 70 ℃ ~ 90 ℃; Kenako utsi slurry analandira mu ng'anjo polymerization kuti madzi m'thupi pa kutentha kwambiri, ndi condense mu sodium tripolyphosphate pafupifupi 400 ℃. Njira yachikhalidweyi sikuti imangofunika mtengo wamtengo wapatali wa phosphoric acid, komanso imadya mphamvu zambiri zotentha; kuonjezera apo, pokonzekera slurry ndi neutralization, m'pofunika kutentha ndi kuchotsa CO2, ndipo ndondomekoyi ndi yovuta. Ngakhale mankhwala oyeretsedwa chonyowa asidi phosphoric angagwiritsidwe ntchito m'malo otentha phosphoric asidi kubala sodium tripolyphosphate, chifukwa zili mkulu zili zitsulo chitsulo mu chonyowa phosphoric asidi, n'zovuta kukwaniritsa zofunika khalidwe la mankhwala panopa sodium tripolyphosphate, komanso ndi zovuta kukwaniritsa zizindikiro zomwe zafotokozedwa m'miyezo ya dziko.

c

Pakali pano, anthu anaphunzira njira zatsopano kupanga sodium tripolyphosphate, monga Chinese patent ntchito No. 94110486.9 "Njira yopangira sodium tripolyphosphate", No. 200310105368.6 "Njira yatsopano yopangira sodium tripolyphosphate", No. 200410040357.9 "A methodical" popanga sodium tripolyphosphate mwa dry-nyowa Comprehensive method", No. 200510020871.0 "Njira yopangira sodium tripolyphosphate ndi Glauber's salt double decomposition method", 200810197998.3 "Njira yopangira sodium tripolyphosphate ndi kupanga ammonium chloride", etc.; ngakhale njira zamakono zili ndi makhalidwe awo, ambiri a iwo ndi kusintha neutralization yaiwisi.

Njira yopangira sodium tripolyphosphate pogwiritsa ntchito sodium pyrophosphate

Sodium pyrophosphate yaiwisi imalowa m'thanki yochapira mchere kuti ichotse sodium chloride yambiri, kenako imalowa m'mbale ndi zosefera zoyambira. Keke yosefera imakhala ndi sodium pyrophosphate yambiri, ndipo kuchuluka kwa sodium kolorayidi kumakhala kosakwana 2.5%. Kenako, yankho limatenthedwa mpaka 85 ° C mu thanki yosungunuka ndi nthunzi yoyambitsa ndi kusungunuka. Sodium sulfide amawonjezeredwa pakusungunuka kuti achotse ayoni achitsulo. Chinthu chosasungunuka ndi zonyansa monga copper hydroxide. Isefedwanso kachiwiri. Filtrate ndi sodium pyrophosphate solution. Mpweya wothira umawonjezedwa ku filtrate kuchotsa inki, phosphoric acid imawonjezeredwa kuti acidify ndikufulumizitsa kusungunuka, ndipo pamapeto pake zamchere zamadzimadzi zimawonjezedwa kuti zisinthe pH mtengo kukhala 7.5-8.5 kukonzekera madzi oyengeka.

d

Gawo lamadzi oyengedwa limagwiritsidwa ntchito mwachindunji mu gawo lokonzekera la sodium tripolyphosphate neutralization, ndipo gawo lina lamadzi oyengedwa limaponyedwa mu crystallizer ya DTB. Madzi oyengedwa mu crystallizer ya DTB amakhazikika mu chotenthetsera kutentha ndi pampu yokakamiza yozungulira ndi madzi a 5 ° C otumizidwa ndi chiller. Pamene kutentha kwa yankho kumatsikira ku 15 ° C, kumapangidwa ndi crystallized mu flocs ndiyeno kutumizidwa ku thanki yapamwamba kwambiri ndi centrifuge mu centrifuge kwa centrifugal kupatukana kuti apeze makhiristo a sodium pyrophosphate. Makristasi a sodium pyrophosphate amawonjezedwa ku gawo lokonzekera madzi a neutralization mu njira yopanga sodium tripolyphosphate ndikusakaniza ndi phosphoric acid ndi madzi a caustic soda kuti akonze madzi osakanikirana ngati zopangira zopangira sodium tripolyphosphate. brine tatchulazi wabwezedwa kutsuka yaiwisi sodium pyrophosphate; pamene sodium kolorayidi yomwe ili mu brine ifika kuchulukidwa, brine imaponyedwa mu thanki yotchinga, ndipo brine mu thanki yosungiramo madzi amaponyedwa mu jekete ya sodium tripolyphosphate tail gas duct kuti asinthane kutentha ndi mpweya wotentha kwambiri wamchira. Mchere wothira pambuyo pa kutentha umabwereranso ku thanki yosungiramo chitetezo kuti ifufuze.

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Nthawi yotumiza: Nov-11-2024