Polyol phosphate

I-Phosphate polyol luhlobo lwekhemikhali enefomula yemolekyuli ye-po4hr1r2.

ulwazi oluyimfuneko

Igama lesiTshayina: i-polyol phosphate

Polyglycerol phosphate

Ifomula yemolekyuli: po4hr1r2

Imbonakalo: ulwelo olungenambala okanye olutyheli olucacileyo

Isibizo: i-polyether phosphate

I-N1, i-N2 kunye ne-N3 ingaba ngu-0 okanye u-1 ngokulandelelanayo.

Iimpawu zephysicochemical zeli candelo zezi zilandelayo:

I-Polyol phosphates inokohlulwa ibe ziindidi ezimbini: uhlobo A luyi-polyoxyethylene ether phosphate, oluludaka olumdaka; uhlobo B yinitrogen-equlethe polyol phosphate, umxube polyhydroxy ikhompawundi, nto leyo ulwelo viscous emnyama. I-solubility ye-organic phosphoric acid eqhelekileyo emanzini iyancipha ngokunyuka kwe-R alkyl carbon athom. Zombini i-monoesters kunye ne-diesters ye-phosphate esters i-acidic kwaye inokubola i-ion ye-hydrogen kwisisombululo esinamanzi; kwi-alkaline medium, oku kubola kuyakhawuleza. Nangona icotha kunepolyphosphate, kulula ukuyigalela emanzini kubushushu obuphezulu kunye neemeko zealkaline. Izinga le-hydrolysis li-10 lamaxesha anjalo kwindawo engathathi hlangothi. Nje ukuba i-hydrolysis yenzekile, umhlwa kunye nokuthintela isikali kuya kulahleka. Iphosphate eyenziweyo inokudityaniswa ne-calcium ion emanzini ukwenza isikali se-calcium phosphate enonyibiliko oluncinane.

Ukusonga isiqulatho ukuhlela lo mhlathi

Ngokuqhelekileyo, i-glycerol i-oxidized yi-phosphate kwaye i-esterified kunye ne-phosphonic acid. Ukusabela kwe-oxidation ye-glycerol ngolu hlobo lulandelayo: ukuxuba i-glycerol kunye ne-powder caustic soda, ukufudumeza ukuya kwi-150 ℃ phantsi kokhuseleko lwegesi engasebenziyo, kwaye ukongeza i-ethylene oxide kwi-ethylene oxide ngokomlinganiselo we-molar we-ethylene oxide kwi-glycerol ye-2: 1; kunye nokugcina ubushushu be-150-160 ℃. Xa i-ethylene oxide yongezwa kwaye igcinwe ixesha elithile (elifana ne-1.2 h), i-oxygen ethylation ye-glycerol inokuqwalaselwa ukuba igqitywe. Kule nkqubo, ukongezwa kwe-akhawunti ye-caustic soda malunga ne-0.1% yexabiso elipheleleyo le-glycerol kunye ne-ethylene oxide. I-phosphonate esterification ye-polyoxyethylene ether kunye ne-glycerin yenziwa kwi-reactor kumlinganiselo wobunzima we-4.5: 1, ifudunyezwe kwi-50 ℃, kwaye i-phosphorus pentoxide yongezwa ngokuthe ngcembe kwi-reactor ngokomlinganiselo we-phosphorus pentoxide / polyoxyethylene ether glycerol. 1:1.1 ~ 1.2, yaye iqondo lobushushu lalingekho ngaphezu kwe-125 ~ 135 ℃. Emva kokuba i-phosphorus pentoxide yongezwe, izinto ezikwi-reactor ziba sobala emva kokubamba ixesha elithile, oku kuthetha ukuba inkqubo ye-esterification igqityiwe. Yongeza amanzi ukupholisa iphosphate kwindawo efunekayo yokulinda. Indlela yokwenziwa imi ngolu hlobo lulandelayo:

Xa i-r-0h + i-H3PO4 ifudunyezwa ukwenza i-r-h2po4 + H20

(R-0) 2po2h + H2O yalungiswa ngokufudumeza i-2R OH + H3PO4

I-Ro-pcl4 + 3H2O isabela ukwenza i-r-h2po4 + 4hcl

I-Ethylene glycol, i-ethylene glycol monoethyl ether, i-polyoxyethylene ether, i-glycerol kunye ne-triethanolamine yafudumeza ukuya kwi-75-85 ℃ phantsi kokuxutywa kunye nokuxuba, kwaye i-phosphorus pentoxide yongezwa ngokucothayo. Emva kokuba i-phosphorus pentoxide yongezwa, ubushushu bokusabela bulawulwa kwi-130-140 ℃ ye-1-2 h. amanzi ongezwa ukupholisa umxube we-asidi ye-phosphoric ukufikelela kwindawo yokugcina uvavanyo olulindelekileyo. Umlinganiselo we-reactants yayiyi-triethanolamine, kwaye owona mxube wokusabela wawuyi-60:40 ~ 40:60 (umlinganiselo wobunzima). Obona bunzima bubuninzi be-ethylene glycol, i-ethylene glycol monoether kunye ne-polyoxyethylene ether glycerol yi-1:4:4. I-ethylene glycol i-monoethyl ether inokongezwa kumaxesha amabini, enye yongezwa kunye ne-ethylene glycol kunye ne-polyoxyethylene ether glycerin ngaphambi kokusabela, kwaye enye yongezwa ngexesha lokubamba i-140 ℃.

Phula uhlele inqobo yomgangatho walo mhlathi

Jonga kwiimfuno zobugcisa ezichazwe kumgangatho weshishini hg2228-91

iprojekthi

isalathisi

Umxholo oqinileyo% ≥amashumi amahlanu

Umxholo we-phosphorus uwonke (ubalwe yi-PO4)% ≥amashumi amathathu

Ibalwe ngumxholo wePO4 ≥ishumi elinesihlanu

PH (1% isisombululo samanzi)2.0-3.0

Indlela yokubona yokusonga ukuhlela eli candelo

Uvavanyo lwenziwe ngokwendlela echazwe kumgangatho we-hg2228-91.

Iklasi yeemveliso ziqulethe i-Organic phosphonates (kubandakanywa i-organic mono kunye ne-bisphosphonates) kunye ne-phosphorus pentoxide (ukwenza i-inorganic phosphoric acid ngamanzi), enokuthi ifakwe ngokuqhubekayo ngendlela yokungathathi hlangothi.