Njira Zopangira Formic Acid

Formic acid ndi mankhwala achilengedwe okhala ndi formula ya mankhwala otchedwa HCOOH. Amatha kupangidwa kudzera m'njira zosiyanasiyana, kuphatikizapo methanol oxidation, carbon monoxide-water reduction, ndi njira zogaya mpweya.

Njira Yothira Methanol

Njira ya methanol oxidation ndi imodzi mwa njira zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale popanga formic acid. Njira yake ndi iyi:

(1) Kukonzekera Zinthu Zopangira:
Methanol ndi mpweya zimakonzedwa ngati zinthu zopangira. Methanol imayeretsedwa ndi kuchotsedwa madzi m'thupi kuti igwire bwino ntchito.

(2) Kachitidwe ka Catalytic Oxidation:
Methanol imakumana ndi mpweya pansi pa kutentha ndi kupanikizika kwina, nthawi zambiri imagwiritsa ntchito chothandizira chachitsulo. Methanol poyamba imasinthidwa kukhala formaldehyde, yomwe imasinthidwanso kukhala formic acid.

(3) Kulekanitsa ndi Kuyeretsa:
Zogulitsazo zimalekanitsidwa ndikuyeretsedwa, nthawi zambiri kudzera mu distillation kapena crystallization.

(4) Chithandizo cha Mpweya Wamchira:
Kachitidwe kameneka kamapanga mpweya wa m'mbuyo wokhala ndi CO, CO₂, N₂, ndi zinthu zina, zomwe zimafunika kuchiritsidwa kudzera mu njira zoyamwitsa, kuumitsa, kapena kuyeretsa.

Mitengo yotsika mtengo ya formic acid kuyambira mu Ogasiti mpaka Okutobala, dinani apa kuti muipeze.