Chifukwa chiyani sodium cyanide imasankhidwa m'malo mwa potassium cyanide mu mineral processing?

1. Mtengo - Chinthu Choyambirira

Chimodzi mwa zifukwa zofunika kwambiri kusankha Sodium cyanide (NaCN) pa Potaziyamu cyanide (KCN) ndi mtengo. Sodium ndi wochuluka kwambiri m'nthaka yapadziko lapansi poyerekeza ndi potaziyamu. Kupanga kwa Sodium Cyanide kumafuna zipangizo zotsika mtengo komanso njira zosavuta zopangira.

Potaziyamu mankhwala nthawi zambiri amafuna zovuta m'zigawo ndi kuyeretsa njira. Kwa akuluakulu Mchere processing ntchito, zomwe zimawononga ndalama zambiri cyanide, kusiyana kwa mtengo sodium cyanide ndi potaziyamu cyanide amatha kumasulira kukhala ndalama zambiri. Mwachitsanzo, ngati mgodi wa golidi ukusenga matani masauzande a miyala tsiku lililonse, kugwiritsa ntchito sodium cyanide m'malo mwa potassium cyanide kungapulumutse madola mamiliyoni ambiri pachaka pamtengo wogulitsira.

2. Kusungunuka ndi Reactivity

Kutupa

Sodium cyanide imakhala ndi kusungunuka kwabwino m'madzi. Pankhani yakukonza mchere, chinthu chosungunuka kwambiri cha cyanide ndichofunikira chifukwa chimalola kupanga bwino kwa cyanide - chitsulo chofunikira pakusungunula zitsulo zamtengo wapatali. Pamikhalidwe yokhazikika, sodium cyanide imasungunuka mosavuta m'madzi, kuwonetsetsa kuti ma cyanide ions (CN⁻) amapezeka mokwanira kuti agwirizane ndi golide kapena siliva mu ore.

Potaziyamu cyanide imasungunukanso m'madzi, koma kusungunuka kwa sodium cyanide ndikokwanira pakugwiritsa ntchito mchere wambiri. Palibe phindu lalikulu pogwiritsira ntchito potaziyamu cyanide ponena za kusungunuka, ndipo mtengo wowonjezera wokhudzana ndi izo sizikutanthauza ntchito yake pamene sodium cyanide ingathe kukwaniritsa mlingo womwewo wa mphamvu pakupanga njira zamadzimadzi zomwe zimafunikira.

Kubwezeretsanso

Posungunula golidi ndi siliva pamaso pa okosijeni, zonse ziwiri za sodium cyanide ndi potaziyamu cyanide zimatsata njira yofananira yamankhwala. Ma cyanide ions amachitira ndi chitsulo mu electrochemical process, kupanga zitsulo zosungunuka - cyanide complexes. Komabe, reactivity ya sodium cyanide imaphunziridwa bwino komanso kukonzedwa bwino m'mafakitale.

The mlingo zimene sodium cyanide ndi golide ndi siliva pansi mmene mchere processing zinthu (pH kuzungulira 9 - 11. Kukhalapo kwa mpweya kusungunuka) wakhala mozama kafukufuku, ndi magawo ndondomeko akhala bwino - anakonza kwa zaka zambiri. Kudziwa bwino kumeneku kumapangitsa kuti pakhale kuwongolera bwino kwa njira ya leaching, kuwonetsetsa kuti zitsulo zamtengo wapatali zimatulutsa zokolola zambiri. Kusintha kwa potaziyamu cyanide kungafune kuunikanso ndi kuthekanso kukonzanso mikhalidwe imeneyi, yomwe ndi ntchito yodula komanso yowononga nthawi.

3. Kukhazikika

Sodium cyanide imawonetsa kukhazikika kwamankhwala pansi pamikhalidwe yomwe imakumana ndi ntchito zopangira mchere. Simawola mosavuta pakakhala mpweya, chinyontho, kapena zonyansa wamba zopezeka mu miyala. Kukhazikika kumeneku ndikofunikira chifukwa kumatsimikizira kuti yankho la cyanide limagwira ntchito pakapita nthawi.

Komano, potaziyamu cyanide imatha kukhala yotakasuka pang'ono m'malo ena ndipo imatha kuwola mwachangu nthawi zina. Mwachitsanzo, pamaso pa zonyansa zina za acidic mu ore kapena m'malo achinyezi kwambiri, potaziyamu cyanide amatha kukhala tcheru kwambiri ndi hydrolysis kapena kuwonongeka kwina, zomwe zingachepetse kuchuluka kwa ayoni a cyanide omwe akupezeka ndipo motero kuchita bwino kwa ntchito yochotsa zitsulo zamtengo wapatali.

4. Kusamalira ndi Chitetezo

Onse sodium cyanide ndi potaziyamu cyanide ndi zinthu zapoizoni kwambiri. Komabe, chifukwa cha kufalikira kwa sodium cyanide m'makampani, pali njira zoyendetsera chitetezo ndi njira zogwirira ntchito. Ogwira ntchito m'mafakitale opangira mchere amaphunzitsidwa kugwiritsa ntchito sodium cyanide mosatekeseka, ndipo zida zomwe zimagwiritsidwa ntchito posungira, zoyendera, komanso kugwiritsa ntchito sodium cyanide zidapangidwa poganizira zachitetezo.

Makampaniwa apanga njira zodzitetezera ku sodium cyanide, monga makina olowera mpweya wabwino m'malo opangirako, zida zodzitetezera, komanso mapulani oyankha mwadzidzidzi pakatayika kapena kutayikira. Kusintha kukhala potaziyamu cyanide kungafune kuphunzitsidwanso ogwira ntchito komanso kusintha njira zotetezera m'fakitale, zomwe zimawonjezera zovuta ndi mtengo wosafunikira.

Pomaliza, kusankha kwa sodium cyanide pamwamba pa potaziyamu cyanide mu mineral processing ndi chisankho choyenera chotengera chuma, mankhwala, ndi chitetezo. Kutsika mtengo, kusungunuka koyenera ndi kubwezeretsanso, kukhazikika kwabwino, ndi njira zotetezera zomwe zimagwirizanitsidwa ndi sodium cyanide zimapangitsa kuti ikhale njira yabwino yochotsera zitsulo zamtengo wapatali kuchokera ku ore.