Sodium Fɔmat Mɛtɔd fɔ Ɔksalik Asid
di prodakshכn fכ oksalik asid bay di sכdiכm fכmat mεtכd dεn divayd am to di lid mεtכd εn di kalsiכm mεtכd. di kabon monoksayd de abzכp bay wan sכdiכm haydroksayd sכlushכn fכ gεt sכdiכm fכmat, we dεn de dεhaydrojen fכ fכm sכdiכm oksalayt. di las wan de riak wit lid sכlfet (lid mεtכd) כ kalsiכm haydroksayd (kalsiכm mεtכd) fכ fכm lid oksalat prεsipitayt כ kalsiכm oksalat prεsipitayt, we dεn de asid wit sכlfyurik asid fכ gεt oksalik asid.
Lid we fɔ prodyuz ɔksalik asid: Afta dɛn dɔn was, was alkali, ɛn pul dɔst, dɛn kin kɔmprɛs di kabɔn monoksayd to 2 MPa bay kɔmpreshɔn, dɛn kin ɔt am bifo tɛm to 150 °C wit 160 g/L sɔdiɔm haydroksayd, ɛn sɛn am to riaktɔ fɔ mek i mek wan diluyt sɔdiɔm fɔmat sɔlvushɔn. di sכlushכn de kכnsantreyt to lεk 600 g/L, sεnd am to wan dihaydrojenεshכn ketul fכ hεt εn kכnsantreyt insay wan sכlid, dεn hεt am εn mεlt, εn dεhaydrojenεshכn na 400 °C. di dihaydrojenεt sכdyכm oksalat dεn pripia insay wan sכspεns, εn dεn ad lid sכlfεt כnda stirring we dεn de mεnten di pH valyu na 3–4. Dɛn kin pul di dɔti dɛn we kin sɔlv bay we dɛn was, ɛn afta dat dɛn kin ad di sɔlfɔrik asid we pasmak fɔ mek i gɛt asid fɔ mek dɛn gɛt ɔksalik asid sɔlvushɔn. Dɛn ad barium carbonate ɛn 1% polyacrylamide fɔ koagulation ɛn sedimentation fɔ pul di impurities. Dɛn kin kol di sɔlvushɔn, kristaliz am, filta am bay sɛntrifugayshɔn, ɛn drɛy am fɔ gɛt di tin we dɔn dɔn.
kalsiכm mεtכd fכ oksalik asid prodakshכn: dεn kכntify di sכdiכm oksalayt sכspεns we dεn pripia εn kalsiכm haydroksayd sכspεns εn sεnd to kalsiכmayzεshכn riaktכ fכ kalsiכmayzεshכn riakshכn כnda stirring. Di kalsiɔmayzeshɔn likwid we dɛn gɛt, dɛn kin filta am ɛn was am. di filtrat sכdiכm haydroksayd de kכnsantreyt εn yuz fכ sεntez sכdiכm fכmat, εn di filta kek kalsiכm oksalat de yuz fכ di asidifyushכn riakshכn. Dɛn kin pripia di filta kek insay wan kalsiɔm ɔksalat sɔspɛns, we dɛn kin asid insay wan asidifyeshɔn ketul wit sɔlfɔrik asid ɛn kɔnsɛntret ɔksalik asid mama likɔl, dɔn dɛn kin filta am. Dɛn kin was di filta kek (jipsum), ɛn dɛn kin yuz di wata we dɛn kin was fɔ pripia di kalsiɔm ɔksalat sɔspɛns. di filtrate (oksalik asid sכlushכn) dεn adsכp fכ pul fayn fayn kalsiכm sכlfet patikyula dεm, kol am, kristכlayz am, εn sεntrifug am fכ separet krud oksalik asid, we dεn de rikristalayz, separet, εn drεy fכ gεt kwalifay prodak, εn dεn de risaykul di mama likכr.
di sכdiכm fכmat lid mεtכd gεt machכ prכsεs, stebul prodakt kwaliti, εn sכt prodakshכn saykl, wit wan yield fכ 80%–90% εn wan rifin כksalik asid puriti fכ 99.5%. Bɔt, lid pɔyushɔn de insay di prodakshɔn prɔses, ɛn di sɔdiɔm sɔlfɛt we dɛn gɛt frɔm di riakshɔn nɔ go ebul fɔ kam bak to di prɔses, so dɛn kin yuz bɔku sɔlfɔrik asid ɛn kɔstik soda we dɛn de prodyuz. Di we aw dɛn kin yuz di kalsiɔm we dɛn kin yuz fɔ mek ɔksalik asid kin mek di wata we de ɔnda grɔn nɔ pwɛl di lid sɔl ɛn sɔdiɔm sɔlfɛt, ɛn if dɛn chenj di kɔstik soda wit laym, dat kin mek dɛn nɔ spɛn bɔku mɔni fɔ mek dɛn. Di bay-prɔdakt CaSO4 we dɛn gɛt frɔm di riakshɔn kin prosɛs to bildin matirial dɛn we nɔ gɛt pɔyushɔn. na di sem tεm, dεn de yuz di mama likכ NaOH we dεn gεt frכm di riakshכn fכ riak wit CO fכ pripia sכdiכm fכmat, we de sev di כmכnt כf raw mεtirial.

Shandong Pulisi Kεmikכl Oksalik Asid: Kor Advantej
Shandong Pulisi Chemical in ɔksalik asid (≥99.6% klin, CAS 144-62-7) tinap aut wit ɔlta-lɔ impyuriti (sɔlfɛt ≤0.1%, hεvi mɛtal ≤0.002%, ayɛn ≤0.003%) ɛn ISO 9001, BV, REACH, FAMI-QS sɛtifiket, we de mek shɔ se dɛn fala di lɔ fɔ di glob ɔl makɛt dɛn. Bak bay 18+ ia kemikal ɛkspɛriɛns, wi de gi faktri-dayrɛkt prayz, ful-kɔntena lɔjistik wit westɛm akɔdin to Qingdao, Tianjin, Shanghai pɔt, ɛn kɔstɔmayz pak (25kg/50kg) fɔ simlɛs ɛkspɔtShandong Pulisi Kwɛmyuɛl Grup. Wi oxalic acid excels in rare earth metal precipitation, metal rust removal, textile dyeing, ɛn marble polishing, we de gi kɔnsistɛns pefɔmɛns ɛn sataynabul, bayɔdigradabl sɔlvishɔn fɔ industrial klaynt dɛn ɔlsay na di wɔl.