Ukusetyenziswa kwe-asidi ye-formic kwisikhumba

Ukusetyenziswa kweformic acid ngethwathwa

Isikhumba silusu lwesilwanyana olwenziweyo olufunyenwe ngokulungiswa komzimba kunye neekhemikhali ezinjengokususwa kweenwele kunye nokusukwa.Formic acid isetyenziswe kwiikhonkco ezahlukeneyo ezifana nokususwa kweenwele, ukutshisa, ukulungiswa kombala kunye nokulungiswa kwe-pH ekusebenzeni kwesikhumba. Indima ethile ye-asidi ye-formic kwisikhumba yile ilandelayo:

1. Ukususwa kweenwele

Formic acid inokuthambisa uboya, kwaye ikhuthaze ukuqhekeka kunye nokususwa kweprotheyini, enceda ekucoceni nasekuqhubeni okulandelayo kwesikhumba.

2. Ukwenza ulusu

Kwinkqubo yokusukwa kwesikhumba,formic acid inokusetyenziswa njenge-agent engathathi hlangothi ekuncedeni i-agent ye-tanning esikhumbeni ukuba idlale indima yayo ngokupheleleyo, ngaloo ndlela iphucula ukuqina kunye nokuthamba kwesikhumba.

3. Ukuseta kunye nokudaya

Ngexesha lokumisela umbala kunye nenkqubo yokudaya kwesikhumba,formic acid inceda idayi ukuba ingene kwesikhumba kwaye iphucule umphumo wokudaya, ngelixa ikhusela ulusu kumonakalo obangelwa yi-molecule yedayi. Ukusetyenziswa okusengqiqweni kweformic acid inokuphucula ukuthungwa kwesikhumba kwaye yenza ubuso besikhumba bube bushelelezi kwaye buqaqambe.

4. Lungisa i-pH

I-asidi ye-formic ingasetyenziselwa ukulawula i-pH ngexesha lokucutshungulwa kwesikhumba, okunciphisa ubungakanani bepore kunye nokwandisa ukuxinwa kwesikhumba, ngaloo ndlela kuphucula ukuxhathisa kwamanzi kunye nokuqina. Ngokuqhelekileyo, ixabiso le-pH yesikhumba esingenanto emva kokuthambisa i-desliming yi-7.5 ~ 8.5, ukwenzela ukuba isikhumba esingwevu silungele iimeko zokusebenza zenkqubo yokuthambisa, kuyimfuneko ukulungelelanisa ixabiso le-pH yesikhumba esingenanto, ukunciphisa ukuya kwi-2.5 ~ 3.5, ukwenzela ukuba ilungele ukusulwa kwe-chrome. Indlela ephambili yokulungelelanisa ixabiso le-pH yi-acid leaching, esetyenziswa kakhuluformic acid. Formic acid ineemolekyuli ezincinci, ukungena okukhawulezayo, kwaye kunefuthe lokugquma kulwelo olulusu lwe-chrome, ukuze ukudibana kweenkozo ezincinci zesikhumba kulungile ngexesha lokwesu. Ihlala isetyenziswa ngokudibeneyo ne-asidi ye-sulfuric ngexesha le-acid leaching.