Oxalic Acid Carbohydrate hmanga tihchak dan
Hetiang method hian starch leh sugar te chu raw material atan hmangin nitric acid hmangin 73–80 °C ah oxidize in oxalic acid a siam chhuak thin. Starch entirnan la ila, a kalphung chu hetiang hi a ni: 85% mass fraction starch chu 10% oxalic acid emaw, intermediate product dang mother liquor emaw awmna aqueous solution-ah theh darh a, acid hmanga tihlum a, darkar 6 chhung reflux-a dahin intermediate product glucose hmuh hmasak a ni. Tichuan, nitric acid leh iron-vanadium catalyst chu 63 °C-ah hydrolysis dang atan dah a ni a, reaction zawhah refining hmangin oxalic acid hmuh a ni.
Reaction ber chu starch chu glucose-ah hydrolysis a ni a, chu chu nitric acid awmnaah oxalic acid-ah oxidized a ni
Fe 3+ leh V2O5V te a ni
catalyst te a ni. Hetiang method hian raw material awlsam taka hmuh theih, process awlsam tak, mild operating conditions, leh investment tlem te a keng tel a, ram hrang hrangte chuan anmahni resource condition angin raw material hrang hrang an thlang thei a ni. Yield leh economic benefits lamah chuan corn starch hi a tlangpuiin duhthlan tur tha ber a ni. Mahse, a that lohna chu a thar chhuah tlem, buhfai tam tak ei, siam chhuah man to, leh tail gas-a nitrogen oxide tam tak awm, toxic tak leh boruak bawlhhlawh nasa tak thlentu a ni.

Shandong Pulisi Chemical hi Chinese professional tak a ni a, industrial-grade oxalic acid (dihydrate, H2C2O4·2H2O) thianghlimna sang tak, thianghlimna 99.6% tlem ber siamtu leh supplier a ni.

Textile & dyeing: Bleaching agent, rawng siam thatna atana puitu
Savun siam dan: Tanning & de-ashing agent a ni
Metal & surface treatment: Rust tihbo, descaling, marble polishing te a ni
Metallurgy: Rare earth metal lakchhuahna atana precipitating agent
Organic synthesis: Chemical tha tak tak, resins leh catalyst te tan chuan intermediate a ni

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