Polyol phosphate

Phosphate polyol wani nau'in sinadari ne mai nau'in sinadari tare da tsarin kwayoyin halitta na po4hr1r2.

muhimman bayanai

Sunan Sinanci: polyol phosphate

Polyglycerol phosphate

Tsarin kwayoyin halitta: po4hr1r2

Bayyanar: ruwa mara launi ko rawaya m

Alade: polyether phosphate

N1, N2 da N3 na iya zama 0 ko 1, bi da bi.

Halayen physicochemical na wannan sashe sune kamar haka:

Polyol phosphates za a iya raba nau'i biyu: nau'in A shine polyoxyethylene ether phosphate, wanda shine launin ruwan kasa; nau'in B shine polyol phosphate mai dauke da nitrogen, cakuda mahaɗan polyhydroxy, wanda ruwa ne mai ɗanɗano baki. Solubility na gama-gari na phosphoric acid a cikin ruwa yana raguwa tare da haɓaka lambar R alkyl carbon atom. Dukansu monoesters da diesters na phosphate esters acidic ne kuma suna iya lalata ions hydrogen a cikin maganin ruwa; a cikin matsakaici na alkaline, wannan bazuwar yana haɓaka. Ko da yake yana da hankali fiye da polyphosphate, yana da sauƙi don yin amfani da ruwa a mafi yawan zafin jiki da yanayin alkaline. Adadin hydrolysis shine sau 10 na wancan a cikin tsaka tsaki. Da zarar hydrolysis ya auku, lalata da sikelin hanawa za a rasa. Phosphate da aka kafa zai iya haɗawa da ions alli a cikin ruwa don samar da sikelin calcium phosphate tare da mafi ƙarancin solubility.

Nadawa abun da ke ciki yana gyara wannan sakin layi

Gabaɗaya, glycerol yana yin oxidized ta hanyar phosphate sannan kuma an haɗa shi da acid phosphonic. A hadawan abu da iskar shaka dauki na glycerol ne kamar haka: hadawa glycerol da powdered caustic soda, dumama zuwa 150 ℃ karkashin kariya daga inert gas, sa'an nan ƙara ethylene oxide zuwa ethylene oxide bisa ga molar rabo na ethylene oxide zuwa glycerol na 2: 1. da kuma kula da zafin jiki na 150-160 ℃. Lokacin da aka ƙara ethylene oxide kuma a ajiye shi na wani lokaci (kamar 1.2 h), ana iya ɗaukar iskar oxygen na glycerol don kammalawa. A cikin wannan tsari, ƙari na caustic soda yana lissafin kusan 0.1% na adadin adadin glycerol da ethylene oxide. An gudanar da phosphonate esterification na polyoxyethylene ether da glycerin a cikin reactor a yawan adadin 4.5: 1, preheated zuwa 50 ℃, sa'an nan kuma an ƙara phosphonate pentoxide a cikin reactor bisa ga yawan rabo na pentoxide / polyoxyethylene ether glycerol. 1: 1.1 ~ 1.2, kuma zafin jiki bai wuce 125 ~ 135 ℃ ba. Bayan an ƙara pentoxide na phosphorus, kayan da ke cikin reactor ya zama bayyananne bayan riƙewa na wani lokaci, wanda ke nufin an kammala aikin esterification. Ƙara ruwa don kwantar da phosphate zuwa abubuwan da ake buƙata don jiran aiki. Hanyar roba kamar haka:

Lokacin da r-0h + H3PO4 ya yi zafi don samar da r-h2po4 + H20

(R-0) 2po2h + H2O an shirya ta dumama 2R OH + H3PO4

Ro-pcl4 + 3H2O yana amsawa don samar da r-h2po4 + 4hcl

Ethylene glycol, ethylene glycol monoethyl ether, polyoxyethylene ether, glycerol da triethanolamine sun kasance masu zafi zuwa 75-85 ℃ a ƙarƙashin motsawa da haɗuwa, sa'an nan kuma an ƙara phosphorus pentoxide a hankali. Bayan an ƙara phosphorous penoxide, ana sarrafa zafin jiki a 130-140 ℃ na 1-2 hours. an ƙara ruwa don kwantar da samfurin phosphoric acid don isa wurin ajiyar gwajin da ake tsammanin. The rabo na reactants ya triethanolamine, kuma mafi kyau dauki cakuda shi ne 60:40 ~ 40:60 (taro rabo). Matsakaicin madaidaicin taro na ethylene glycol, ethylene glycol monoether da polyoxyethylene ether glycerol shine 1:4:4. Ethylene glycol monoethyl ether za a iya ƙara a cikin sau biyu, daya an kara tare da ethylene glycol da polyoxyethylene ether glycerin kafin dauki, da kuma sauran da aka kara a lokacin da rike lokaci na 140 ℃.

Rushe gyara ma'aunin ingancin wannan sakin layi

Koma zuwa buƙatun fasaha da aka ƙayyade a cikin ma'auni na masana'antu hg2228-91

aikin

index

M abun ciki% ≥50

Jimlar abun ciki na phosphorus (ƙididdigar ta PO4)% ≥ talatin

An ƙididdige shi ta hanyar abun ciki na PO4 ≥ sha biyar

PH (1% maganin ruwa) 2.0-3.0

Hanyar ganowa na nadewa editan wannan sashe

An gudanar da gwajin bisa ga hanyar da aka kayyade a daidaitattun hg2228-91.

Kayayyakin aji sun ƙunshi Organic phosphonates (ciki har da Organic mono da bisphosphonates) da phosphorus pentoxide (ƙimar inorganic phosphoric acid da ruwa), waɗanda za a iya titrated ci gaba ta hanyar neutralization.