Omuringo gwa Sodium Formate ogwa Oxalic Asid
Okukora oxalic acid omu muringo gwa sodium formate nikubaganisibwamu omuringo gw’okutwara n’omuringo gwa calcium. Kaboni monokisaidi neenywa omubazi gwa sodium haidrokisaidi kutunga sodium formate, reero ehindurwa amaizi kureetaho sodium oxalate. Eky’aha muheru nikikwatagana n’ekyoma ky’okukyebera (omuringo gw’okukyebera) nari calcium hydroxide (omuringo gw’okukyebera) kureetaho ekirungo ky’okusheeshasheesha nari ekirungo ky’okusheeshasheesha, ekirikugaruka kihindurwa asidi n’ekirungo kya sulfuric acid kutunga oxalic acid.
Omuringo gw’okukora oxalic acid: Bwanyima y’okwozya, okwozya alkali, n’okuihaho enfuuzi, carbon monoxide neenyigirizibwa kuhika ahari 2 MPa n’ekikwato ky’okuteera, ebanza yayokibwa kuhika ahari 150 °C na 160 g/L ya sodium hydroxide, kandi eyoherezibwa omu nkora y’okukora omubazi gw’okuteera sodium formate. Omubazi ogu niguteebwamu ebiriisa nka 600 g/L, gusindikirwa omu kettle y’okukyendeeza amaizi kugiteekamu omuriro kandi gukyebeirwe omu kintu ekigumire, bwanyima gukyebebwe kandi gushukyeere, kandi gukyebebwe amaizi aha 400 °C. Sodium oxalate erimu amaizi neetebeekanisibwa omu kirungo, kandi lead sulfate neeyongyerwa ahansi y’okugiteera obwo erikukuuma omuhendo gwa pH ahari 3–4. Obutafaari oburikubaasa kusheesheka nibuihwaho obwo obwozya, reero sulfuric acid erikurenga neeyongyerwamu kubaasa kugihindura asidi kubaasa kutunga omubazi gwa oxalic acid. Barium carbonate na 1% polyacrylamide nizongerwamu ahabw’okuteerana n’okusheenyagura kubaasa kwihaho obukooko. Omubazi ogu nigukyendeezibwa, guhinduka ekibiriiti, gusendwa omu muringo gw’okukyebera (centrifugation), kandi guyomezibwa kutunga ekirugiremu ekihweire.
Omuringo gwa calcium ogw’okukora oxalic acid: Ekirungo kya sodium oxalate ekitebeekanisiibwe n’ekirungo kya calcium hydroxide nibikyeberwa kandi byoherezibwa omu kikwato ky’okukora calcium ahabw’okukora kwa calcium ahansi y’okugiteera. Amaizi g’okutunga ebiriisa bya calcium nigasendwa kandi gayozibwa. Ekirungo kya sodium hydroxide nikiteerana kandi kikoresibwa omu kuhanga sodium formate, kandi ekirungo kya keeki ekya calcium oxalate nikikoresibwa omu kuhindura asidi. Keeki y’okushwijuma neetebeekanisibwa omu nshaho ya calcium oxalate, erikuteebwamu asidi omu kettle y’okutaho asidi erimu sulfuric acid n’omwengye gwa nyina oxalic acid ogurimu asidi nyingi, reero bwanyima eshenenekwa. Keeki y’okushwijuma (gypsum) neeyozibwa, kandi amaizi g’okwozya nigakoresibwa kutebeekanisa ekirungo kya calcium oxalate. Ekicweka eki (oxalic acid solution) nikikwatwaho kwihaho obucweka bukye bwa calcium sulfate, kikyererwa, kihinduka ekicupuri, kandi kihindurwa ekirungo ky’omubiri (centrifuge) kutaanisaho oxalic acid etaine nshonga, erikugaruka kuhinduka ekicupuri, etaanisibwa, kandi eyomire kutunga ekintu ekihikire, kandi amaarwa g’omukazi nigagaruka gakoresibwa.
Omuringo gwa sodium formate lead gwine omuringo ogukuzire, omutindo gw’ebintu oguhamire, n’obwire bukye bw’okukora, n’okutunga ebiriisa 80%–90% n’obuyonjo bwa oxalic acid obushemeire bwa 99.5%. Kwonka hariho okushiisha kwa lead omu nkora y’okukora, kandi sodium sulfate erikuruga omu kuhindura terikubaasa kugaruka omu nkora, n’ahabw’ekyo sulfuric acid nyingi na caustic soda nizikoresibwa omu kukora. Omuringo gwa calcium ogw’okukora oxalic acid nigubaasa kwihaho okushiisha kw’eminyugunyu ya lead na sodium sulfate omu maizi g’ahansi y’itaka, kandi okuhindura caustic soda n’okutaho lime nikibaasa kukyendeeza munonga aha sente z’okukora. Ekirungo kya CaSO4 ekirikuruga omu nkora y‘okugarukamu nikibaasa kuhindurwa ebintu by‘okwombeka hatariho kusheenya. Omu bwire nibwo bumwe, amaarwa g’omukazi NaOH agarikuruga omu kuhindura nigakoresibwa kuhindura na CO kutebeekanisa sodium formate, obwo nibukiza omuhendo gw’ebintu ebitari bimwe na bimwe.

Omubazi gwa Shandong Pulisi ogwa oxalic asidi: ebirungi ebikuru
144-62-7) neeyemerera ahabw‘okugira ngu erimu obukooko obukye munonga (sulfate ≤0.1%, ebyoma ebiremeire ≤0.002%, ekyoma ≤0.003%) n‘ebihandiiko bya ISO 90000, BCH,MIQ-su. okukuratira ebiragiro ahabw’obutare bw’ensi yoona. 18+ emyaka y’obukugu bw’eby’emibazi, nituha emihendo y’eby’obuhangwa, okutwara ebintu omu konteyina yoona n’amabiikiro omu myaaro ya Qingdao, Tianjin, Shanghai, n’okupakira ebintu omu muringo ogu orikwenda (25kg/50kg) ahabw’okushohoza ebintu aheeru y’ihanga hatariho nshonga. Oxalic acid yaitu neekirayo omu kugwa kw’ebyoma ebitarikukira kureebwa, okuihaho obukooko bw’ebyoma, okusiiga emyenda, n’okushemeza amabaare g’omuhendo, kureetaho okukora okutarimu kuhinduka n’okugumizamu, eby’okugarukamu ebirikubaasa kusheenyuka ahabw’abashuubuzi b’amakorero omu nsi yoona.