Paraan na Pankakasakey na Oxalic Acid Carbon Monoxide
Sayan paraan et inmuna ya angusar na palladium tan copper salts bilang katalista, tan nanggawa na liquid-phase coupling reaction na carbon monoxide, oxygen, alcohol, tan dilute nitric acid ed 8-11 MPa tan 90-100 °C. Say reaksion et unonan mamawala na oxalate ester, ya insan na-hydrolyze ed kondisyon na panagpainit pian napormay oxalic acid tan say mipetekan ya alcohol.
Sayan paraan et walaan na saksakey a sistema na katalista, atagey ya aktibidad, maong a panagpili, mainomay a nabawi, atagey a kalinisan na produkto, tan abeban polusyon ed produksyon. Balet, walaan na atagey iran kakaukolanen parad kalinisan na carbon monoxide, atagey a konsumo, mabmabli iran catalyst, tan atagey a pinansyal a pundo.
Diad pangusar na Pd/C bilang catalyst, say carbon monoxide tan nitrite ester et mankakasakey pian makagawa na oxalate ester ed 130 °C tan atmospheric pressure, ya say nitric oxide et by-product. Say oxalic acid tan say mipara ton alcohol et naala diad panamegley na hydrolyzing ed oxalate ester. Say insian ya solusyon na alak et na-reoxidize pian magmaliw ya nitrite ester, ya nayarin i-recycle.
Say Fujian Institute of Structure of Matter, Chinese Academy of Sciences, so nanggawa na research nipaakar ed ratio na raw materials tan nanduruman kondisyon na space velocity ed catalytic synthesis na dimethyl oxalate diad panagsukimat na saray catalyst parad atmospheric pressure catalytic coupling na CO ed oxalic acid, tan saray pinilin kondisyon ya matukoy. Say pinaaligwas ya Pd (2.0%)/α-Al₂O3 catalyst et akagawa na space-time yield ya 999 g/L·h diad silong na kondisyon na atmospheric pressure, 140 °C, CO/CH3ONO=1.5, tan space velocity ya 3000/h. Say institute et akikoopera ed Fujian Petrochemical Design Institute tan Fujian Nanqing Ammonia Plant pian manggawa na 100 t/a ya pilot test na pakabawi na CO manlapud synthetic ammonia copper scrubbing, atmospheric pressure catalytic synthesis na dimethyl oxalate, tan hydrolysis ya magmaliw ya oxalic acid.
No ikompara ed liquid-phase ya paraan, sayan paraan et atagey so selectivity to, simpli so proseso to, atagey so purity na produkto, tan abeba so gastos ed produksyon. Nayarin usaren toy natural gas odino karbon bilang hilaw a materyales, tan nayarin usaren to met so carbon monoxide ya naala ed ammonia copper scrubbing odino yellow phosphorus furnace, blast furnace, tan converter tail gas bilang panlapuan na carbon monoxide gas. Diad saman met a panaon, makapangiter iya na baraton materyales parad produksyon na ethylene glycol tan say pankakasakey na panagtipon ya walay oxalate ester bilang sakey a manangilaman.

Shandong Pulisi Chemical Co., Ltd. | Premium Oxalic Acid Provider
Say Pulisi Chemical ya inletneg nen 2006 et man-espesyalisa ed high-purity oxalic acid (CAS 144-62-7) ya ontutumbok ed saray estandarte na internasyonal ya panaglako parad parehon industrial tan refined ya grado. Say Zibo-based manufacturing facility mi et mangiseguro na istrikton panangontrol ed kalidad, ya say industrial-grade ya oxalic acid et walaan na minimum ya 96% ya kalinisan tan say refined-grade et walay 99.6% ya kalinisan to—ya makasumpal ed nanduruman pankaukolan na industriya.
Say oxalic acid mi et nikadkaduma lapud ekselentin solubility tan malet iran kemikal ya kablian to, ya manseserbin mausa-usar ya raw material ed nanduruman sektor. Diad panagproseso na metal, epektibo ton naekal so kalat tan saray surface oxide layers ed asero, aluminum, tan gansa, ya mamaaligwas ed inkapeket na coating parad saray aplikasyon ed luluganan, aerospace, tan electroplating. Diad saray tela, saya so onkikiwas bilang eco-friendly ya bleaching agent tan dye fixative, ya mamaaligwas ed inka-malet tan inka-liwawa na kolor na tela.
Niarum ni, saya so malaknab ya uusaren ed panaggawa na tambal, panagproseso na kiew, panag-ala na rare earth metal, tan panagtambal na water scale. Sertipikado ed ISO 9001 tan EU REACH, mansusuplay kami na standardized ya 25kg ya packaging parad dakel ya order, pian naseguro so napanmatalkan ya suplay ed interon mundo. Balanglan parad angkakabaleg ya industriyal ya produksyon odino saray high-end ya aplikasyon, say Pulisi Chemical et mangiiter na tuloytuloy ya kalidad tan propesyonal ya suporta.