Usoro Sodium Form nke Oxalic Acid
A na-ekewa mmepụta oxalic acid site na usoro sodium formate n'ime usoro lead na usoro calcium. A na-etinye carbon monoxide site na mmiri sodium hydroxide iji nweta sodium formate, nke a na-eme ka ọ ghara ịmịpụta mmiri wee mepụta sodium oxalate. Nke ikpeazụ na-emeghachi omume na lead sulfate (usoro lead) ma ọ bụ calcium hydroxide (usoro calcium) iji mepụta lead oxalate precipitate ma ọ bụ calcium oxalate precipitate, nke a na-eme ka acid sulfuric dị na ya iji nweta oxalic acid.
Usoro ndu maka mmepụta oxalic acid: Mgbe a sachara ya, sachaa alkali, ma wepụ uzuzu, a na-etinye carbon monoxide ruo 2 MPa site na compressor, a na-eme ka ọ dị ọkụ ruo 150 °C na 160 g/L sodium hydroxide, ma ziga ya na reactor iji mepụta mmiri sodium formate gbazere agbaze. A na-etinye mmiri ahụ ruo ihe dị ka 600 g/L, ziga ya na ketulu dehydrogenation ka ọ kpoo ọkụ ma tinye ya n'ime ihe siri ike, wee kpoo ya ọkụ ma gbazee, ma wepụ ya na 400 °C. A na-akwadebe sodium oxalate dehydrogenated ka ọ bụrụ ihe nkwụsịtụ, a na-agbakwunye lead sulfate mgbe a na-akpali ya ma na-ejigide uru pH na 3–4. A na-ewepụ ihe ndị na-agbaze site na ịsa ahụ, wee tinye sulfuric acid gabigara ókè maka acidification iji nweta mmiri oxalic acid. A na-agbakwunye barium carbonate na 1% polyacrylamide maka coagulation na sedimentation iji wepụ ihe ndị na-adịghị mma. A na-eme ka mmiri ahụ dị jụụ, na-eme ka kristal dị ọcha, na-eme ka ọ kpọọ nkụ site na centrifugation, ma kpọọ nkụ iji nweta ngwaahịa emechara.
Usoro Calcium maka mmepụta oxalic acid: A na-enyocha ma ziga sodium oxalate suspension na calcium hydroxide suspension ma ziga ya na ihe na-eme ka calcium jupụta n'ime ihe na-eme ka calcium jupụta n'ime mmiri. A na-asacha ma saa mmiri calcium hydroxide enwetara. A na-etinye sodium hydroxide filtrate ma jiri ya mee ihe maka imepụta sodium formate, a na-ejikwa calcium oxalate cake filter maka mmeghachi omume acidification. A na-akwadebe achịcha nzacha ahụ ka ọ bụrụ calcium oxalate suspension, nke a na-eme ka acid dị na kettle acidification na sulfuric acid na oxalic acid mother liquorted, wee zoo ya. A na-asa achịcha nzacha ahụ (gypsum), a na-ejikwa mmiri ịsa ahụ kwadebe calcium oxalate suspension. A na-etinye filtrate (oxalic acid solution) iji wepụ obere calcium sulfate, jụọ oyi, mee ka kristal dị ọcha, ma tinye ya na centrifuge iji kewaa oxalic acid dị nro, nke a na-emegharịgharị, kewapụ, ma kpọọ nkụ iji nweta ngwaahịa ruru eru, a na-emegharịkwa mmanya nne.
Usoro sodium lead nwere usoro tozuru okè, ịdị mma ngwaahịa kwụsiri ike, yana usoro mmepụta dị mkpụmkpụ, yana mmepụta nke 80%–90% na ịdị ọcha oxalic acid a nụchara anụcha nke 99.5%. Agbanyeghị, enwere mmetọ lead na usoro mmepụta, enweghịkwa ike iweghachi sodium sulfate enwetara site na mmeghachi omume ahụ na usoro ahụ, yabụ a na-eri nnukwu sulfuric acid na caustic soda na mmepụta. Usoro calcium maka imepụta oxalic acid nwere ike iwepụ mmetọ nke nnu lead na sodium sulfate na mmiri ala, na iji lime dochie caustic soda nwere ike ibelata ọnụ ahịa mmepụta nke ukwuu. Enwere ike ịhazi CaSO4 sitere na mmeghachi omume ahụ ka ọ bụrụ ihe owuwu na-enweghị mmetọ. N'otu oge ahụ, a na-eji mmanya nne NaOH sitere na mmeghachi omume ahụ emeghachi omume na CO iji kwadebe sodium formate, si otú a na-azọpụta ọnụọgụ ihe eji emepụta.

Shandong Pulisi Chemical Oxalic Acid: Uru Isi
Asịd oxalic nke Shandong Pulisi Chemical (≥99.6% ịdị ọcha, CAS 144-62-7) pụtara ìhè na ihe ndị na-adịghị mma nke ukwuu (sulfate ≤0.1%, ọla dị arọ ≤0.002%, ígwè ≤0.003%) na asambodo ISO 9001, BV, REACH, FAMI-QS, na-ahụ na a na-agbaso ahịa ụwa niile. Site na ahụmịhe kemịkalụ afọ 18+, anyị na-enye ọnụahịa ozugbo nke ụlọ ọrụ mmepụta ihe, nhazi akpa zuru oke yana ụlọ nkwakọba ihe na Qingdao, Tianjin, ọdụ ụgbọ mmiri Shanghai, na nkwakọ ngwaahịa ahaziri ahazi (25kg/50kg) maka mbupụ na-enweghị nsogbuShandong Pulisi Chemical Group. Asịd oxalic anyị na-aka mma na mmiri ozuzo ígwè dị ụkọ, iwepụ nchara ígwè, agba ákwà, na ịcha marble, na-enye arụmọrụ na ngwọta na-adịgide adịgide, nke na-emebi emebi maka ndị ahịa ụlọ ọrụ gburugburu ụwa.