Nzila ya Oxalic Acid Carbon Monoxide Coupling
Eeyi nzila yakasaanguna yakabelesya munyo wa palladium a copper mbuli zintu zigwasya, mpawo yakachita nzila yakusanganya kaboni monokisayidi, muuya, bukoko, antoomwe a nitric acid a 8-11 MPa antoomwe a 90-100 °C. Kusanduka ooku kusaanguna kupanga oxalate ester, eeyo iizwa mumaanzi mubukkale bwakupya kuti ibe oxalic acid antoomwe a alcohol.
Eeyi nzila ilijisi nzila yomwe yakugwasya, ibeleka loko, ilakonzya kusala kabotu, ilakonzya kujokezyegwa, ilisalala kapati, alimwi ilijisi kusofwaazya kusyoonto. Nokuba boobo, ilijisi ziyandikana zyiingi zyakusalala kwa carbon monoxide, kubelesya kunji, zibelesyo zidula, antoomwe akubikka mali manji.
Kubelesya Pd/C mbuli chintu chisungwaazya, kaboni monokisayidi a nitrite ester zilaswaanganizyigwa kupanga oxalate ester a 130 °C akusinikizyigwa kwamuwo, antoomwe a nitric oxide mbuli chintu chizwa. Oxalic acid antoomwe abukoko bweendelana awo zilajanwa kwiinda mukusanzya oxalate ester. Musamu wa bukoko wakaandaanizyidwe ulasanduka kuba nitrite ester, walo uukonzya kubelesegwa alimwi.
Chikolo cha Fujian cha Structure of Matter, Chinese Academy of Sciences, chakachita buvwuntauzi aatala amweelwe wazintu zitabelesyegwi antoomwe abukkale bwiindene-indene bwakuchijaana kwa dimethyl oxalate mubuvwuntauzi bwazintu zipa kuti CO ibeleke antoomwe a oxalic acid, antoomwe abukkale buli kabotu. I Pd (2.0%)/α-Al₂O₃ yakasumpulwa yakazwidilila muchiindi cha 999 g/L·h mubukkale bwakutontola kwamuwo, 140 °C, CO/CH₃ONO=1.5, antoomwe akufwambaana kwa 3000/h. Chikolo chakabelekela antoomwe a Fujian Petrochemical Design Institute antoomwe a Fujian Nanqing Ammonia Plant kuti bachite 100 t/a yakujana CO kuzwa ku synthetic ammonia copper scrubbing, atmospheric pressure catalytic synthetic of dimethyl oxalate, antoomwe a hydrolysis kuya ku oxalic acid.
Kweezyanisya anzila ya liquid-phase, eeyi nzila ilaa kusala kupati, nzila nguba, kusalala kwachintu, antoomwe amali masyoonto aakupanga. Ilakonzya kubelesya muya uuzwa kuzilenge naa malasha mbuli zintu zitabelesyegwi, alimwi ilakonzya kubelesya muya uutegwa carbon monoxide uuzwa mukusanzya mukuba wa ammonia naa yellow phosphorus furnace, blast furnace, alimwi a converter tail gas mbuli muya uutegwa carbon monoxide. Aawo awo, ilakonzya kupa zintu zitaduli zyakubelesya mukupanga ethylene glycol antoomwe akupanga antoomwe a oxalate ester mbuli chintu chili akati.

Shandong Pulisi Chemical Co., Ltd. | Sikupa Oxalic Acid Uusumpukide
Yakatalisyigwa mu 2006, Pulisi Chemical ilijisi luzibo lwa oxalic acid (CAS 144-62-7) iitobelezya zyeelelo zyakusambala kunze aacisi zyamakkampani azyakusalazya. Busena bwesu bwakupanga zintu buzwa ku Zibo bulasinizya kuti bubotu bwazintu buli kabotu, a oxalic acid iibelesyegwa mumafakitali ilaa busalazi bwa 96% mpawo yasalazyigwa ilasika ku 99.6% yabusalali—kuzuzikizya ziyandikana mumafakitali.
Asidi yesu ya oxalic iliimpene akaambo kakunyonyooka kwayo kubotu alimwi akuba amakemikalu aatazungaani, ibelekela mbuli chintu chibelesegwa munzila zyiingi. Mukubamba zintu zyabutale, zilagwisya kabotu-kabotu nsimbi antoomwe azibeela zya oxide kuzwa kubutale, aluminiyamu, amukuba, ikusumpula kujatana kwachivwumbyo mumyootokala, mujulu, akubelesya magesi. Muzisani, ibelekela mbuli chintu chitontola busena alubo chibamba dayi, ikusumpula mubala wachisani kuti utazungaani akumweka.
Kuyungizya waawo, lilabelesyegwa kapati mukupanga misamu, kubamba nkuni, kugwisya nsimbi zitavwuli kujanika, alimwi akusalazya maanzi. Katuzumizyidwe a ISO 9001 antoomwe a EU REACH, tulapa zintu zyakubikkila 25kg zyama oda miingi, ikusinizya kuti zilapegwa kabotu munyika yoonse. Kufumbwa naa nkupanga zintu zipati mumafakitali naa kubelesya zintu zisumpukide, Pulisi Chemical ilapa lugwasyo lubotu lutacinci alimwi alugwasyo lwabasyaazibwene.