Nzila ya Sodium Formate ya Oxalic Acid
Kupanga asidi ya oxalic kwiinda munzila ya sodium formate kwaandaanizyigwa munzila ya lead anzila ya calcium. Kaboni monokisayidi ilanjililwa aamusamu wa sodium hydroxide kuchitila kuti kujane sodium formate, eeyo mpawo ilagwisyigwa maanzi kuti ibe sodium oxalate. Eechi chamamanino chilasangana a lead sulfate (nzila ya lead) naa calcium hydroxide (nzila ya calcium) kuti chipange lead oxalate precipitate naa calcium oxalate precipitate, eeyo mpawo iyungizigwa a sulfuric acid kuti ijane oxalic acid.
Nzila yakusaanguna yakupanga oxalic acid: Musule akusanzya, kusanzya alkali, akugwisya bulongo, carbon monoxide ilasinkililwa kusika ku 2 MPa a compressor, ilapya kusika ku 150 °C a 160 g/L sodium hydroxide, mpawo ituminwa ku reactor kuti ipange sodium formate solution. Musamu ooyu ulabikkilizyigwa kusika ku 600 g/L, ulatumwa kuketele lyakugwisya maanzi kuti upye mpawo uyungizigwe kuba chintu chiyumu, mpawo upya akunyengululwa, mpawo ugwisigwa maanzi a 400 °C. Sodium oxalate iitakwe maanzi ilabambilwa kuba chintu chiyumu, mpawo lead sulfate ilabikkwa mukuzungaanya kumwi pH kaili 3-4. Zisofweede zikonzya kunywika zilagwisigwa akusanzya, mpawo sulfuric acid iiyungizyidwe ilabikkwa kuti ibe asidi kuchitila kuti kube musamu wa oxalic acid. Barium carbonate antoomwe a 1% polyacrylamide zilabikkwa kuti zifwefwemale akugwisya tombe. Musamu ooyu ulatontozyegwa, ulasanduka, ulasefwa kwiinda mukubelesya nzila ya centrifugation, mpawo ulayuminizyigwa kuchitila kuti ujane musamu uumanizyidwe.
Nzila ya calcium yakupanga oxalic acid: Sodium oxalate zyakabambilwa antoomwe a calcium hydroxide zyakabambilwa mpawo zilatumwa kuchibelesyo cha calcium kuti chichite calcium kakuli kuzungaanizyigwa. Maanzi aajanika aa calcium alasefwa akusanzyigwa. Sodium hydroxide iisofweede ilabikkwa antoomwe mpawo ibelesyegwa kupanga sodium formate, mpawo calcium oxalate ibelesyegwa kupanga acidification. Ikkekke lyakusefa lilabambwa kuba calcium oxalate suspension, eelyo libikkwa acidi muketele lya acidification asulfuric acid antoomwe a oxalic acid mother liquor, mpawo lilasefwa. Ikkekke lyakusefa (gypsum) lilasanzyigwa, mpawo maanzi aakusanzya abelesyegwa kubamba calcium oxalate suspension. Ikusefa (musamu wa oxalic acid) kulabikkwa mumubili kuti kugwisye tuniini twa calcium sulfate, kutontozyegwa, kusandulwa, akubikkwa mu centrifuge kuti kwaandaanye oxalic acid iitakwe busani, eeyo iisandulwa alimwi, kwaandaanizyigwa, akuyuminizyigwa kutegwa kujane cintu cibotu, mpoonya bukoko bwabanyina bulabelesyegwa alimwi.
Nzila ya sodium formate lead ilijisi nzila iisimide, bubotu bwachintu, antoomwe achiindi chifwiifwi chakupanga, a 80%-90% akusalala kwa oxalic acid kwa 99.5%. Nokuba boobo, kuli kusofwaazya kwa lead munzila yakupanga, mpawo sodium sulfate iizwa mukusanduka taikonzyi kujokezyegwa munzila, aboobo mweelwe mupati wa sulphuric acid a caustic soda zilabelesyegwa mukupanga. Nzila ya calcium yakupanga oxalic acid ilakonzya kugwisya busofwaazi bwa lead salts a sodium sulfate mumaanzi aansi, mpawo kuchincha soda a lime kulakonzya kucesya mali yakupanga. I CaSO4 iizwa mukusanduka ilakonzya kubelesegwa kuba zibelesyo zyakuyasya kakunyina kusofwaazya. Aawo awo, bukoko bwa NaOH bwakajanwa kuzwa mukusanduka bwakabelesegwa kusangana a CO kupanga sodium formate, aboobo kuvwuna mweelwe wazintu zitabelesyegwi pe.

Shandong Pulisi Chemical Oxalic Acid: Bubotu Bupati
Shandong Pulisi Chemical's oxalic acid (≥99.6% purity, CAS 144-62-7) iliimpene a ultra-impurity (sulfate ≤0.1%, heavy metals ≤0.002%, iron ≤0.003%) antoomwe a ISO 900 BV, REMI, FA-SCH, certifications kusinizya kuti milawu yanyika yoonse ilatobelwa. Katugwasyilizyigwa amyaka iinda ku18+ yaluzibo lwamakemikalu, tulapa muulo uuzwa kufakitoli, zyintu zyoonse zyakunyamuna antoomwe amaanda aakulida zintu mu Qingdao, Tianjin, Shanghai, antoomwe akupakila zintu (25kg/50kg) zyakutumizya kunze kakunyina penzi kuShandong Pulisi Chemical Group. Asidi yesu ya oxalic ilakonzya kuchita obotu mukugwisya nsimbi zitavwuli kujanika, kugwisya nsimbi zyabutale, kudaya zisani, akuponya mabwe aamabwe, kupa kuti kube kubeleka kutamani alimwi anzila zitamani, zikonzya kubola kuli basimakwebo nyika yoonse mbwiizulwa.