Indlela yokuQhagamshela i-Oxalic Acid Carbon Monoxide
Ekuqaleni le ndlela yayisebenzisa i-palladium kunye ne-copper salts njengee-catalysts, yaza yenza i-liquid-phase coupling reaction ye-carbon monoxide, i-oxygen, i-alcohol, kunye ne-dilute nitric acid kwi-8–11 MPa kunye ne-90–100 °C. I-reaction iqala ngokuvelisa i-oxalate ester, ethi emva koko i-hydrolyzed phantsi kweemeko zokufudumeza ukuze yenze i-oxalic acid kunye ne-alcohol ehambelana nayo.
Le ndlela inenkqubo enye ye-catalyst, inomsebenzi omninzi, ikhetha kakuhle, kulula ukuyibuyisa, icocekile kakhulu kwimveliso, kwaye ivelisa ungcoliseko oluphantsi. Nangona kunjalo, ineemfuno eziphezulu zokucoceka kwe-carbon monoxide, ukusetyenziswa kakhulu, ii-catalysts ezibizayo, kunye notyalo-mali oluphezulu.
Ukusebenzisa i-Pd/C njenge-catalyst, i-carbon monoxide kunye ne-nitrite ester zidityaniswe ukuze zidityaniswe i-oxalate ester kwi-130 °C kunye noxinzelelo lomoya, kunye ne-nitric oxide njengemveliso ephumayo. I-oxalic acid kunye ne-alcohol ehambelanayo zifunyanwa ngokufaka i-oxalate ester kwi-hydrolyzing. Isisombululo se-alcohol esahlulweyo siyaphinda sifakwe kwi-oxidized ukuze senze i-nitrite ester, enokuphinda isetyenziswe.
I-Fujian Institute of Structure of Matter, i-Chinese Academy of Sciences, yenze uphando malunga nomlinganiselo wezinto eziluhlaza kunye neemeko ezahlukeneyo zesantya sendawo kwi-catalytic synthesis ye-dimethyl oxalate kuphando lwee-catalysts zokudibanisa i-atmospheric pressure catalytic ye-CO kwi-oxalic acid, kwaye ikhethe iimeko ezifanelekileyo zokuphendula. I-catalyst ye-Pd (2.0%)/α-Al₂O₃ ephuculweyo ifumene isivuno sexesha lesithuba se-999 g/L·h phantsi kweemeko zoxinzelelo lwe-atmospheric, i-140 °C, i-CO/CH₃ONO=1.5, kunye nesantya sesithuba se-3000/h. Eli ziko lisebenzisane ne-Fujian Petrochemical Design Institute kunye ne-Fujian Nanqing Ammonia Plant ukwenza uvavanyo lwe-100 t/a lokuvavanya ukubuyisela i-CO kwi-synthetic ammonia copper scrubbing, i-atmospheric pressure catalytic synthesis ye-dimethyl oxalate, kunye ne-hydrolysis kwi-oxalic acid.
Xa kuthelekiswa nendlela yesigaba solwelo, le ndlela inokukhetha okuphezulu, inkqubo elula, ubumsulwa obuphezulu bemveliso, kunye neendleko eziphantsi zemveliso. Ingasebenzisa igesi yendalo okanye amalahle njengezinto eziluhlaza, kwaye ingasebenzisa ne-carbon monoxide efunyenwe kwi-ammonia copper scrubbing okanye kwi-yellow phosphorus furnace, kwi-blast furnace, nakwi-converter tail gas njengomthombo wegesi ye-carbon monoxide. Kwangaxeshanye, inokubonelela ngezinto eziluhlaza ezingabizi kakhulu zokuvelisa i-ethylene glycol kunye ne-united synthesis ene-oxalate ester njenge-intermediate.

I-Shandong Pulisi Chemical Co., Ltd. | Umboneleli wePremium Oxalic Acid
Yasekwa ngo-2006, iPulisi Chemical igxile kwi-oxalic acid ecocekileyo kakhulu (CAS 144-62-7) ehambelana nemigangatho yamazwe ngamazwe yokuthumela kwamanye amazwe kwiiklasi zoshishino kunye nezo zicociweyo. Indawo yethu yokuvelisa esekelwe kwiZibo iqinisekisa ulawulo olungqongqo lomgangatho, kunye ne-oxalic acid ekumgangatho wezoshishino enobuncinci be-96% yobumsulwa kunye nomgangatho ococekileyo ofikelela kwi-99.6% yobumsulwa—ihlangabezana neemfuno ezahlukeneyo zoshishino.
I-oxalic acid yethu ihlukile ngokunyibilika kwayo okugqwesileyo kunye neempawu zayo ezizinzileyo zeekhemikhali, isebenza njengezinto ezisetyenziswa ngeendlela ezahlukeneyo kumacandelo. Ekucubungulweni kwesinyithi, isusa ngokufanelekileyo umhlwa kunye neeleya ze-oxide yomphezulu kwintsimbi, i-aluminium, kunye ne-copper, iphucula ukunamathela kwe-coating kwizicelo zeemoto, ze-aerospace, kunye ne-electroplating. Kwimpahla, isebenza njenge-agent ye-bleaching enobuhlobo nokusingqongileyo kunye ne-dye fixative, iphucula ukukhawuleka kombala welaphu kunye nokukhanya.
Ukongeza, isetyenziswa kakhulu ekuqulunqweni kwamayeza, ekucutshungulweni kweenkuni, ekutsalweni kwesinyithi esinqabileyo, nasekunyangweni kwamanzi. Siqinisekiswe yi-ISO 9001 kunye ne-EU REACH, sibonelela ngopakisho oluqhelekileyo lwe-25kg kwiiodolo ezinkulu, siqinisekisa ukunikezelwa okuthembekileyo kwihlabathi liphela. Nokuba kukwimveliso enkulu yemizi-mveliso okanye kwizicelo eziphezulu, iPulisi Chemical inikezela ngenkxaso ehambelanayo nesemgangathweni kunye nobungcali.