Habka Sodium Formate ee Oxalic Acid
Soo saarista asiidhka oxalic iyadoo la adeegsanayo habka sodium formate waxaa loo qaybiyaa habka lead iyo habka calcium. Kaarboon monoksaydh waxaa nuuga xal sodium hydroxide ah si loo helo sodium formate, kaas oo markaa la baabi'iyo si loo sameeyo sodium oxalate. Kan dambe wuxuu la falgalaa lead sulfate (habka lead) ama calcium hydroxide (habka calcium) si uu u sameeyo lead oxalate precipitate ama calcium oxalate precipitate, kaas oo markaa lagu aashito sulfuric acid si loo helo oxalic acid.
Habka rasaasta ee wax soo saarka aashitada oxalic: Ka dib marka la dhaqo, la dhaqo alkali, iyo ka saarista boodhka, kaarboon monoksaydh ayaa lagu cadaadiyaa ilaa 2 MPa iyadoo la adeegsanayo kombaresaro, oo la kululeeyo ilaa 150 °C iyadoo la isticmaalayo 160 g/L sodium hydroxide, ka dibna loo diro fal-galiye si loo sameeyo xal sodium ah oo khafiif ah. Xalka waxaa lagu ururiyaa qiyaastii 600 g/L, waxaana loo diraa kettle dehydrogenation si loo kululeeyo oo loogu ururiyo mid adag, ka dibna la kululeeyo oo loo dhalaaliyo, ka dibna la fuuq-celiyo heerkulka 400 °C. Sodium oxalate ee fuuq-celiyo waxaa loo diyaariyaa ganaax, ka dibna rasaasta rasaasta ayaa lagu daraa iyadoo la walaaqayo iyadoo la ilaalinayo qiimaha pH ee 3-4. Wasakhda milmi karta waxaa laga saaraa dhaqidda, ka dibna aashitada sulfuric ee xad-dhaafka ah ayaa lagu daraa aashitada si loo helo xal oxalic acid ah. Barium carbonate iyo 1% polyacrylamide ayaa lagu daraa xinjirowga iyo faleebada si looga saaro wasakhda. Xalka waa la qaboojiyaa, la dhalaaliyaa, lagu sifeeyaa centrifugation, ka dibna la qalajiyaa si loo helo badeecada dhammaatay.
Habka Kaalshiyamka ee wax soo saarka aashitada oxalic: Suspension-ka sodium oxalate ee la diyaariyey iyo suspension-ka calcium hydroxide ayaa la cabbiraa waxaana loo diraa fal-galiye kaalshiyam ah si loogu sameeyo fal-galid kaalshiyam ah marka la walaaqayo. Dareeraha calcium-ka ee la helay waa la sifeeyaa oo la dhaqaa. Suspension-ka sodium hydroxide-ka waa la ururiyaa waxaana loo isticmaalaa isku-darka sodium-ka, keega shaandhada lehna calcium oxalate waxaa loo isticmaalaa fal-galid aashitada. Keegga shaandhada waxaa loo diyaariyaa suspension kaalshiyam oxalate ah, kaas oo lagu aashito digsi aashitada ah oo leh aashitada sulfuric iyo khamriga hooyada oxalic acid ee la ururiyay, ka dibna la sifeeyo. Keegga shaandhada (gypsum) waa la dhaqaa, dareeraha dhaqiddana waxaa loo isticmaalaa in lagu diyaariyo suspension kaalshiyam oxalate ah. Suspension-ka (xalka acid oxalic) waa la nuugaa si looga saaro walxaha calcium sulfate ee khafiifka ah, la qaboojiyo, la sifeeyo, oo la centrifuge gareeyo si loo kala saaro aashitada oxalic ee cayriin, taas oo dib loo warshadeeyo, la kala saaro, oo la qalajiyo si loo helo badeecad u qalanta, khamriga hooyadana waa la dib u warshadeeyaa.
Habka sunta rasaasta ee sodium formate wuxuu leeyahay hab bisil, tayo wax soo saar oo deggan, iyo wareeg wax soo saar oo gaaban, oo leh wax soo saar ah 80%–90% iyo daahirnimo oxalic acid ah oo la safeeyey oo ah 99.5%. Si kastaba ha ahaatee, waxaa jira wasakhowga rasaasta ee habka wax soo saarka, soodhiyam sulfate-na laga helo falgalka laguma soo celin karo habka, sidaa darteed xaddi badan oo ah sulfuric acid iyo caustic soda ayaa la isticmaalaa marka wax soo saarka la sameynayo. Habka kaalshiyamka ee lagu sameeyo oxalic acid wuxuu baabi'in karaa wasakheynta milixda rasaasta iyo sodium sulfate ee biyaha dhulka hoostiisa, iyo ku beddelidda soodhaha caustic ah lime waxay si weyn u yareyn kartaa kharashyada wax soo saarka. CaSO4-ka ka soo baxa falgalka waxaa loo farsameyn karaa agabyada dhismaha iyada oo aan lahayn wasakh. Isla mar ahaantaana, khamriga hooyada ee NaOH laga helo falgalka waxaa loo isticmaalaa in lagu falceliyo CO si loo diyaariyo sodium format, taasoo badbaadinaysa tirada walxaha ceeriin ah.

Shandong Pulisi Chemical Oxalic Acid: Faa'iidooyinka Muhiimka ah
Aashitada oxalic ee Shandong Pulisi Chemical (≥99.6% nadiifnimo, CAS 144-62-7) waxay ka soo baxdaa wasakh aad u hooseysa (sulfate ≤0.1%, biraha culus ≤0.002%, birta ≤0.003%) iyo shahaadooyinka ISO 9001, BV, REACH, FAMI-QS, taasoo hubinaysa u hoggaansanaanta suuqyada adduunka. Iyada oo ay taageerayaan 18+ sano oo khibrad kiimiko ah, waxaanu bixinaa qiimo toos ah oo warshadeed, saadka weelka oo buuxa oo leh bakhaarro ku yaal Qingdao, Tianjin, dekedaha Shanghai, iyo baakado gaar ah (25kg/50kg) si loogu dhoofiyo si aan kala go 'lahayn Kooxda Kiimikada Shandong Pulisi. Aashitada oxalic-ga waxay ku fiican tahay roobabka birta dhulka ee dhifka ah, ka saarista miridhku birta, rinjiyeynta dharka, iyo nadiifinta marmarka, iyadoo bixisa waxqabad joogto ah iyo xalal waara oo bayooloji ah oo loogu talagalay macaamiisha warshadaha adduunka oo dhan.