Indlela yokuhlanganisa i-Oxalic Acid Carbon Monoxide
Indlela le ekuthomeni yasebenzisa i-palladium kanye ne-copper salts njengeentjhukumisi, begodu yenza ukusabela kokuhlanganisa isigaba samanzi se-carbon monoxide, i-oksijini, utjwala, kanye ne-nitric acid ehlanjululweko ku-8–11 MPa kanye no-90–100 °C. Ukusabela kokuthoma kukhiqiza i-oxalate ester, ebese i-hydrolyze ngaphasi kobujamo bokufuthumala ukwakha i-oxalic acid kanye ne-alcohol ehambelana nayo.
Indlela le inehlelo elilodwa lokukhuthaza, ukusebenza okuphezulu, ukukhetha okuhle, ukubuyisa okulula, ukuhlanzeka okuphezulu komkhiqizo, nokungcola okuphansi kokukhiqiza. Kodwana, ineemfuneko eziphezulu zokuhlanzeka kwekhabhoni monokisayidi, ukusetjenziswa okukhulu, iinsetjenziswa ezibizako, kanye nokutjala imali okukhulu.
Ukusebenzisa i-Pd/C njenge-catalyst, i-carbon monoxide ne-nitrite ester zihlanganiswa ukwakha i-oxalate ester ku-130 °C kanye nomfutho womkhathi, nge-nitric oxide njengomkhiqizo. I-oxalic acid kanye ne-alkhoholi ehambelana nayo zitholakala ngokusebenzisa i-oxalate ester. Isisombululo se-alkhoholi esihlukanisiweko siyabuyiselwa oksijidini ukwakha i-nitrite ester, engabuyiselwa emuva.
I-Fujian Institute of Structure of Matter, i-Chinese Academy of Sciences, yenze irhubhululo ngesilinganiso sezinto ezisetjenziswako kanye nobujamo obuhlukahlukeneko be-space velocity ekwenzeni i-catalytic synthesis ye-dimethyl oxalate ekucwaningeni ngama-catalysts wokuhlanganiswa komfutho we-atmospheric we-CO ku-oxalic acid, kanye nobujamo obufaneleko bokuphendula. I-Pd (2.0%)/α-Al₂O₃ catalyst ethuthukisiweko ifinyelele isivuno sesikhathi se-999 g/L·h ngaphasi kweemeko zomfutho womkhathi, i-140 °C, i-CO/CH₃ONO=1.5, kanye nejubane lesikhala le-3000/h. Isikhungo sisebenzisane ne-Fujian Petrochemical Design Institute kanye ne-Fujian Nanqing Ammonia Plant ukwenza ukuhlolwa kwe-100 t/a kokubuyisa i-CO evela ekuhlanzweni kwethusi le-ammonia, ukukhiqizwa kwe-dimethyl oxalate, kanye nokukhiqiza i-hydrolysis ibe yi-oxalic acid.
Nayiqathaniswa nendlela ye-liquid-phase, indlela le inokukhetha okuphezulu, ikambiso elula, ukuhlanzeka okuphezulu komkhiqizo, kanye neendleko eziphasi zokukhiqiza. Ingasebenzisa irhasi yemvelo nofana amalahle njengezinto ezisetjenziswako, begodu ingasebenzisa i-carbon monoxide etholwe ekuhlanzweni kwe-ammonia copper nofana i-yellow phosphorus furnace, i-blast furnace, kanye ne-converter tail gas njengomthombo we-carbon monoxide. Ngesikhathi esifanako, inganikela ngezinto ezitjhiphileko zokukhiqiza i-ethylene glycol kanye nokuhlanganiswa okuhlangeneko nge-oxalate ester njengesiphakathi.

I-Shandong Pulisi Chemical Co., Ltd. | Umhlinzeki we-Oxalic Acid we-Premium
Yasungulwa ngo-2006, i-Pulisi Chemical yenza ngokukhethekileko nge-oxalic acid ehlanzekileko (i-CAS 144-62-7) ekhambisana namazinga wokuthunyelwa ngaphandle kwamazwe ngamazwe womabili amagreyidi wezebubulo newe-refined. Isikhungo sethu sokukhiqiza esisekelwe ku-Zibo siqinisekisa ukulawulwa kwekhwalithi okuqinileko, nge-oxalic acid yezinga lezebubulo ene-96% yokuhlanzeka begodu yezinga elicwengekileko elifikelela ubumsulwa obuyi-99.6%—okuhlangabezana neemfuneko ezihlukahlukeneko zebubulo.
I-oxalic acid yethu ivelele ngokuncibilika kwayo okuhle khulu kanye nezakhiwo zamakhemikhali ezizinzileko, isebenza njengesisetjenziswa esingakalungiswa kiyo yoke imikhakha. Ekusetjenzisweni kwensimbi, isusa kuhle ukugqwala kanye namalayini we-oksijini ephezulu ensimbini, i-aluminiyamu, nethusi, okwenza bona kube nokunamathelana kweenkoloyi, eendaweni zeenqhema zeenqhema, kanye neensetjenziswa zokufaka igezi. Ezindwangu, isebenza njenge-ejenti yokuhlanza engalimazi ibhoduluko kanye nedayi, yenza ngcono ukuqina nokukhanya kombala wendwangu.
Phezu kwalokho, isetjenziswa khulu ekukhiqizeni imithi, ekusebenzeni iinkuni, ekukhipheni iinsimbi ezingakajayeleki, kanye nokuhlanza amanzi. Siqinisekiswe nge-ISO 9001 kanye ne-EU REACH, siphakela amaphakheji ajwayelekileko we-25kg malungana nama-oda amanengi, ukuqinisekisa ukuphakelwa okuthembekileko ephasini loke. Kungakhathaliseki bona kukhiqiza amabubulo amakhulu nofana ukusetjenziswa okusezingeni eliphezulu, i-Pulisi Chemical inikela ngekhwalithi engatjhugulukiko nesekelo lobungcweti.