Sodium Formate Laawol asid oksalik
Pewnugol asid oksalik e feere sodium formate ina feccii e feere lewru e feere kalsiyum. Monoksiid karbon ina soomi e ɓuuɓri hidroksiid sodium ngam heɓde formaat sodium, caggal ɗuum ɗum ɓuuɓna ngam waɗde oksalaat sodium. Ko sakkitii koo ina hawra e sulfaat plumbum (laabi plumbum) walla hidroksiid kalsiyum (laabi kalsiyum) ngam waɗde ɓuuɓri oksalaat plumbum walla ɓuuɓri oksalaat kalsiyum, ndi asiditee e asid sulfurik ngam heɓde asid oksalik.
Laawol leɗɗe ngam peewnugol asid oksalik : Caggal lootgol, lootgol alkali, e ittugol duƴƴe, monoksiid karbonik ina ɓuuɓnee haa 2 MPa e nder kompresor, ina ɓuuɓnee haa 150 °C e 160 g/L hidroksiid sodium, ina neldee e reaktoor ngam sinkude ɓuuɓri sodium dilute. Kosam ɗam ina ɓuuɓna fotde 600 g/L, neldee e ɓuuɓri ɓuuɓndi ngam ɓuuɓnude ɗum e ɓuuɓnude ɗum haa wonta ɓuuɓri, caggal ɗuum ɓuuɓna ɗum, ɓuuɓna ɗum, ɓuuɓna ɗum e nguleeki 400 °C. Oksalaat sodium dehidrogen ina feewnee e nder ɓuuɓri, sulfaat plumbum ina ɓeydee e les ɓuuɓri tawa pH ina jokki e 3–4. Soklaaji ɓuuɓɗi ɗii ina ittaa e lootgol, caggal ɗuum asid sulfurik ɓurɗo heewde oo ɓeydee ngam asideede ngam heɓde ɓuuɓri asid oksalik. Karbonaat barium e poliakrilamid 1% ina ɓeydee heen ngam ɓuuɓnude e ɓuuɓnude ngam ittude mborosaaji. Kosam ɗam ina cooynee, ina ɓuuɓnee, ina filtiree e senngo, ina yoora ngam heɓde ko timmi.
Laawol kalsiyum ngam peewnugol asid oksalik : Suspension oksalaat sodium e suspension hidroksiid kalsiyum peewnaaɗi ɗii, ina limtee, neldee to reaktor kalsiyum ngam waɗde feere kalsiyum e nder ɓuuɓri. Ɗaam kalsiyum keɓaaɗo oo ina filtiree, ina loowee. Filtirde hidroksiid sodium ina ɓuuɓna, ina huutoree ngam sinkude formaat sodium, filtirde kaake kalsiyum oksalaat ina huutoree ngam waɗde feere asid. Kaake filtirde ndee ina feewnee e nder ɓuuɓri oksalaat kalsiyum, nde asidtee e nder ɓuuɓri asid e asid sulfurik e liɗɗi yumma asid oksalaat ɓuuɓɗo, caggal ɗuum filtiree. Kaake filtirde (jipse) ina loowee, ndiyam lootirɗam ɗam huutoree ngam feewnude ɓuuɓri oksalaat kalsiyum. Filtirde ndee (solution asid oxalique) ina ɓuuɓnee ngam ittude ɓuuɓri sulfaat kalsiyum laaɓtundi, ina cooynee, ina ɓuuɓnee, ina ɓuuɓnee ngam seerndude asid oksalik mo alaa ko woni e mum oo, ɗum noon ina ɓuuɓnee, ina seerndee, ina yooree ngam heɓde geɗel gootel, liɗɗi yumma ɗii kadi ina cirƴee.
Laawol leɗɗe sodium formate ina jogii feere mawnde, mbaydi peewnugol dartiindi, e njuuteendi peewnugol juutndi, tawa ina waɗi 80%–90% e laaɓal asid oksalik laaɓtuɗo 99,5%. Kono noon ina woodi pollution plumbum e nder golle peewnugol, kadi sulfaat sodium keɓaaɗo e reaksiyoŋ oo waawaa artirde e golle ɗee, ko ɗum waɗi asid sulfurik e soda caustic keewɗo ina ñaamee e peewnugol ngol. Laawol kalsiyum ngam sinkude asid oksalik ina waawi ittude pollugol salte plumbum e sulfaat sodium e nder ndiyam les, lomtinande soda caustik e lime ina waawi ustude no feewi njoɓdi peewnugol. Ko heddii e CaSO4 keɓaaɗo e mbaydi mbaylaandi ina waawi waɗeede e geɗe mahdi tawa alaa ko bonnata ɗum. E oon sahaa gooto, liɗɗi yumma NaOH keɓaaɗo e mbaydi ndii ina huutoree ngam mbaydi ndi CO ngam feewnude sodium formate, ɗum noon ina hisna keewal geɗe mbaylaandi.

Asid oksalik kemikal Shandong Pulisi: Nafooje mawɗe
Asid oksalik mo Shandong Pulisi Chemical (≥99,6% laaɓal, CAS 144-62-7) ina seerti e ɓuuɓri ɓurndi famɗude (sulfaat ≤0,1%, njamndi teeŋtundi ≤0,002%, njamndi ≤0,003%) e seedanteeje ISO 900-EA ɗooftaare ngam luumooji winndere. 18+ duuɓi e humpito kemikal, min ndokka coggu toɗɗaangu e nder usineeji, jokkondire timmuɗe e depasuuji e nder portooji Qingdao, Tianjin, Shanghai, e paaspooruuji keertiiɗi (25kg/50kg) ngam yaltinde ko aldaa e caɗeeleShandong Pulisi Chemical Group. Asid oksalik men ɓuri waawde e toɓo njamndi leydi seeɗa, ittugol njamndi mboɗeeri, mbaylaandi mbaylaandi, e polindagol marbere, rokkude golle jokkondirɗe e duumotooɗe, kuutorɗe biodegradable ngam soodooɓe gollorɗe e nder winndere ndee kala.