Txoj Kev Sib Txuas Oxalic Acid Carbon Monoxide
Txoj kev no pib siv cov ntsev palladium thiab tooj liab ua cov tshuaj catalysts, thiab ua tiav cov kua dej sib txuas ntawm cov pa roj carbon monoxide, oxygen, cawv, thiab dilute nitric acid ntawm 8-11 MPa thiab 90-100 ° C. Cov tshuaj tiv thaiv ua ntej tsim cov oxalate ester, uas tom qab ntawd hydrolyzed nyob rau hauv cov cua sov kom tsim cov oxalic acid thiab cov cawv sib xws.
Txoj kev no muaj ib lub tshuab catalyst, kev ua haujlwm siab, kev xaiv zoo, yooj yim rov qab tau, cov khoom huv si, thiab muaj kuab paug tsawg. Txawm li cas los xij, nws muaj qhov yuav tsum tau ua kom huv si ntawm cov pa roj carbon monoxide, kev siv ntau, cov catalysts kim, thiab kev nqis peev ntau.
Siv Pd/C ua ib qho catalyst, carbon monoxide thiab nitrite ester yog txuas nrog los ua oxalate ester ntawm 130 ° C thiab atmospheric siab, nrog nitric oxide ua ib qho by-product. Oxalic acid thiab cov cawv sib xws yog tau los ntawm hydrolyzing lub oxalate ester. Cov cawv sib cais yog reoxidized los ua nitrite ester, uas tuaj yeem rov ua dua tshiab.
Lub Koom Haum Fujian ntawm Cov Qauv ntawm Cov Khoom, Suav Academy of Sciences, tau ua kev tshawb fawb txog qhov sib piv ntawm cov khoom siv raw thiab ntau yam qhov chaw ceev ntawm catalytic synthesis ntawm dimethyl oxalate hauv kev tshawb fawb ntawm cov catalysts rau lub atmospheric pressure catalytic coupling ntawm CO rau oxalic acid, thiab xaiv cov xwm txheej tshuaj tiv thaiv tsim nyog. Lub Pd zoo dua (2.0%) / α-Al₂O₃ catalyst tau txais qhov chaw-lub sijhawm tso zis ntawm 999 g / L · h nyob rau hauv cov xwm txheej ntawm atmospheric pressure, 140 ° C, CO / CH₃ONO = 1.5, thiab qhov chaw ceev ntawm 3000 / h. Lub koom haum tau koom tes nrog Fujian Petrochemical Design Institute thiab Fujian Nanqing Ammonia Plant los ua qhov kev sim 100 t / a pilot ntawm kev rov qab CO los ntawm kev siv ammonia tooj liab scrubbing, atmospheric pressure catalytic synthesis ntawm dimethyl oxalate, thiab hydrolysis rau oxalic acid.
Piv nrog rau txoj kev ua kua-theem, txoj kev no muaj kev xaiv siab, cov txheej txheem yooj yim, cov khoom ntshiab siab, thiab tus nqi tsim khoom qis. Nws tuaj yeem siv cov roj av lossis cov thee ua cov khoom siv raw, thiab tseem tuaj yeem siv cov pa roj carbon monoxide rov qab los ntawm ammonia tooj liab scrubbing lossis cov cua sov daj phosphorus, lub cub tawg, thiab cov pa roj converter tail ua cov pa roj carbon monoxide. Tib lub sijhawm, nws tuaj yeem muab cov khoom siv raw pheej yig rau kev tsim cov ethylene glycol thiab kev sib koom ua ke nrog oxalate ester ua ib qho nruab nrab.

Shandong Pulisi Chemical Co., Ltd. | Tus Muab Kev Pabcuam Oxalic Acid Zoo Tshaj Plaws
Tsim muaj xyoo 2006, Pulisi Chemical tshwj xeeb hauv kev tsim cov oxalic acid uas muaj qhov huv siab (CAS 144-62-7) ua raws li cov qauv xa tawm thoob ntiaj teb rau ob qho tib si qib kev lag luam thiab qib refined. Peb lub chaw tsim khoom Zibo ua kom muaj kev tswj hwm zoo, nrog rau qib kev lag luam oxalic acid muaj qhov huv tsawg kawg yog 96% thiab qib refined txog 99.6% purity - ua tau raws li ntau yam kev xav tau ntawm kev lag luam.
Peb cov oxalic acid sawv tawm rau nws cov solubility zoo heev thiab cov khoom siv tshuaj ruaj khov, ua haujlwm ua cov khoom siv raw ntau yam thoob plaws cov sectors. Hauv kev ua hlau, nws tshem tawm cov xeb thiab cov txheej oxide ntawm cov hlau, txhuas, thiab tooj liab, txhim kho kev nplaum rau cov tsheb, aerospace, thiab electroplating daim ntawv thov. Hauv cov ntaub, nws ua haujlwm ua tus neeg sawv cev bleaching zoo rau ib puag ncig thiab cov xim fixative, txhim kho cov xim ntaub kom ruaj khov thiab ci ntsa iab.
Tsis tas li ntawd xwb, nws siv dav hauv kev tsim tshuaj, kev ua ntoo, kev rho tawm cov hlau tsis tshua muaj, thiab kev kho dej. Peb tau txais daim ntawv pov thawj ISO 9001 thiab EU REACH, thiab peb muab cov khoom ntim 25kg rau kev txiav txim ntau, kom ntseeg tau tias muaj kev xa khoom thoob ntiaj teb. Txawm hais tias rau kev tsim khoom lag luam loj lossis cov ntawv thov siab, Pulisi Chemical muab kev txhawb nqa zoo thiab kev tshaj lij.