Yot me Sodium Formate me Oxalic Acid
Yub me oxalic acid ki yoo me sodium formate ki poko i yoo me lead ki yoo me calcium. Carbon monoxide ki kwanyo ki i pii ma ki lwongo ni sodium hydroxide me nongo sodium formate, ma dong ki kwanyo pii me nongo sodium oxalate. Man ma lacen ni rwate ki lead sulfate (yoo me lead) onyo calcium hydroxide (yoo me calcium) me yubu lead oxalate precipitate onyo calcium oxalate precipitate, ma ki dong ki loko ki sulfuric acid me nongo oxalic acid.
Kit me yubu oxalic acid: Iyonge lwoko, lwoko alkali, ki kwanyo buru, carbon monoxide ki diyo me doko 2 MPa ki compressor, ki lyeto me 150 °C ki 160 g/L sodium hydroxide, ki cwalo i reactor me yubu sodium formate solution. Gin ma ki rubu ni ki keto i 600 g/L, ki cwalo i dehydrogenation kettle me lyeto ki medo i gin ma tek, ki dong ki lyeto ki lyel, ki dehydrogenated i 400 °C. Gin ma ki lwongo ni dehydrogenated sodium oxalate ni ki yubu me bedo gin ma ki keto iye, ki lead sulfate ki medo iye kun ki gwoko pH value i 3-4. Gin ma romo gonyo ki kwanyo ki i lwoko, ki dong ki medo iye sulfuric acid ma okato me weko oxalic acid ni bedo ma odonyo. Barium carbonate ki 1% polyacrylamide ki medo me gwoko ki gwoko pii me kwanyo jami ma obale. Gin ma ki tiyo kwede ni ki juku, ki doko gin ma ki lwongo ni crystalled, ki filter ki centrifugation, ki ki juku me nongo gin ma ki tiyo kwede.
Kit me yubu calcium pi yubu oxalic acid: Sodium oxalate ma ki yubu ki calcium hydroxide ki kwano ki cwalo gi i calciumization reactor pi calciumization reactor ma ki lwongo ni stirring. Gin ma ki nongo ma ki lwongo ni calciumization ni ki yubu ki lwoko. Gin ma ki lwongo ni filtrate sodium hydroxide ni ki keto i kom gin ma ki lwongo ni sodium formate, ki gin ma ki lwongo ni filter cake calcium oxalate ki tiyo kwede me yubu acidification reaction. Mugati ma ki lwongo ni filter cake ni ki yubu i calcium oxalate suspension, ma ki keto acid i kettle me acidification ki sulfuric acid ki concentrated oxalic acid mother liquor, ki dong ki filter. Gin ma ki lwongo ni filter cake (gypsum) ki lwoko, ki pii ma ki lwoko ni ki tiyo kwede me yubu calcium oxalate suspension. Gin ma ki lwongo ni filtrate (oxalic acid solution) ki kwanyo me kwanyo jami ma ki lwongo ni calcium sulfate, ki juku, ki loko, ki ki loko me poko oxalic acid ma pe ki tiyo kwede, ma ki loko, ki poko, ki ki juku me nongo gin ma opore, ki kongo ma ki lwongo ni mother liquor ni ki dwoko cen.
Kit me tic ki sodium formate lead tye ki yub ma odong, rwom me gin ma ki yubu ma cung matek, ki kare me yubu ne ma cok, ki rwom me 80%-90% ki rwom me oxalic acid ma ki yubu maber me 99.5%. Ento, tye bal ma ki lwongo ni lead i yub me yubu ne, ki sodium sulfate ma ki nongo ki i yub ni pe kitwero dwoko cen i yub ni, pi meno wel madwong pa sulfuric acid ki caustic soda ki tiyo kwede i yubu ne. Kit me calcium me yubu oxalic acid twero kwanyo balo pa lead salts ki sodium sulfate i pii ma tye i ngom, ki loko caustic soda ki lime twero dwoko piny wel cente ma mite me yubu ne. Gin ma aa ki i CaSO4 ma ki nongo ki i tic ni ki twero tic kwede me doko jami me gedo labongo balo ne. I kare acel, gin ma ki lwongo ni mother liquor NaOH ma ki nongo ki i tic ni ki tiyo kwede me tic ki CO me yubu sodium formate, ma weko ki gwoko wel jami ma ki tiyo kwede.

Shandong Pulisi Chemical Oxalic Acid: Ber ne ma pire tek
Gin ma ki lwongo ni Shandong Pulisi Chemical's oxalic acid (≥99.6% purity, CAS 144-62-7) cung woko ki ultra-low impurities (sulfate ≤0.1%, heavy metals ≤0.002%, iron ≤0.003%) ki ISO 900 BV, REMI, FA-SCH, certifications neno ni ki lubu cik pi cuk me wilobo. Ki kony pa mwaka 18+ me ngec i kom jami ma ki lwongo ni chemical, wa miiyo wel ma ki keto i factory, jami ma ki keto i iye ki ot gwoko jami i Qingdao, Tianjin, Shanghai ports, ki jami ma ki yubu ma opore (25kg/50kg) pi cwalo jami i lobo mukene ma pe ki peko i Shandong Pulisi Chemical Group. Oxalic acid wa ber loyo i yubu jami ma pe nen, kwanyo jami ma nyal, keto rangi i kom bongo, ki yubu got ma ki lwongo ni marble, ma miyo tic maber ki ma twero balo jami makwo pi dano ma gi tiyo i kampuni i wilobo weny.