
Kuyambira mu 2008 mpaka 2015, dziko la China linasintha kwambiri pakupanga Sodium Cyanide . Linasintha kuchoka pa kukhala kampani yotumiza mankhwala oopsa kwambiriwa kupita ku kukhala kampani yaikulu kwambiri padziko lonse yopanga, kusungira, komanso kutumiza kunja. Kusintha kwakukulu kumeneku kumabweretsa funso lakuti: n’chifukwa chiyani dziko la China lakhala dziko lotsogola pakupanga sodium cyanide?
Global Sodium Cyanide Production Landscape
Japan inali m'gulu la anthu oyamba kulowa mu gawo lopanga Sodium cyanide . Ngakhale kuti United States inali ndi ulamuliro waukulu (ndi makampani monga DuPont omwe amapanga 43% ya mphamvu zonse padziko lonse lapansi) ndi Western Europe pakupanga sodium cyanide padziko lonse lapansi , makampani aku Japan monga Kuraray ndi Nippon Soda, pakati pa ena, athandiza Japan kukhalabe ndi mpikisano. Mu 1999, pafupifupi 50% ya sodium cyanide yotulutsidwa ku Japan idagwiritsidwa ntchito popanga methionine, yomwe imagwiritsidwa ntchito kwambiri popanga chakudya cha ziweto.
Komabe, padziko lonse lapansi, njira yoyamba yogwiritsira ntchito sodium cyanide ndiyo kuchotsa golide. Popeza ukadaulo wogwiritsa ntchito sodium cyanide mumigodi ya golide udayamba m'ma 1980, wavomerezedwa kwambiri m'mafakitale agolide m'maiko osiyanasiyana. Mwachitsanzo, ku South Africa, 99.5% ya kuchotsa golide amadalira njira imeneyi; ku United States, chiwerengerochi chili pa 88.1%, ndipo ku Australia, ndi 84.9%. Pakadali pano, 75% ya sodium cyanide padziko lapansi imadyedwa ndi migodi. Makampani opanga migodi ku North America, South America, Russia, Central Asia, Australia, South Africa, ndi China ndi omwe amagwiritsa ntchito mankhwalawa.
Kukwera kwamitengo ya golide kwakhudza mwachindunji mtengo wa sodium cyanide womwe umagwiritsidwa ntchito pochotsa golide. Kumayambiriro kwa zaka za m'ma 2000, mtengo wapadziko lonse wa sodium cyanide unali pafupifupi \ (1.600 pa tani, yomwe idakwera kufika \) 2.800 pa tani. Kukwera kwamitengo kumeneku kunalimbikitsa kukula kwa kupanga sodium cyanide padziko lonse lapansi. Mwachitsanzo, Russia ndi Peru, adamanga mofunitsitsa zomera zopanga sodium cyanide zomwe zimatha kupanga matani 40.000 a sodium cyanide yolimba pachaka. Koma posakhalitsa, anaphimbidwa ndi kukula kofulumira kwa China m’derali.
China's Sodium Cyanide Production Journey
China idayamba kupanga sodium cyanide m'zaka za m'ma 1960, pomwe Shanghai inali malo oyamba kupanga. Pofika m'zaka za m'ma 1980, msika wochulukirachulukira wa petrochemical udapangitsa kuti pakhale kufunikira kwa sodium cyanide. Zisanafike 2008. China idadalira kuchokera kunja, kubweretsa 10.000 - 30.000 matani a sodium cyanide pachaka.
Komabe, mphamvu ziwiri zomwe zikukulirakulira pakufunika kwa dziko ndi mayiko ena, limodzi ndi kukwera kwa mitengo, makamaka chifukwa cha kuwonjezeka kwa zofunikira za Makampani Ogulitsa Migodi ya Golide , zinakweza mphamvu ya kupanga sodium cyanide ku China. Pofika mu 2009, China idafika pachimake mwa kukhala wogulitsa kunja wa sodium cyanide.
Mu 2011. Kupanga kwapachaka kwa sodium cyanide ku China kunayandikira matani 400.000. Pakalipano, dziko la China lili ndi udindo waukulu kwambiri padziko lonse wopanga sodium cyanide. Kuphatikiza pa kukwaniritsa zosowa zapakhomo, imatumiza kunja matani oposa 70.000 chaka chilichonse. Pakukula kwachangu kwamakampani a sodium cyanide, zigawo ngati Anhui ndi Hebei zidawoneka ngati malo akuluakulu opanga.
Magalimoto Oyendetsa Kumbuyo Kwa Kukwera kwa China
Gold Mining Industry
China sikuti ndi otsogola opanga komanso ogula kwambiri golide. Kukula kosalekeza pakupanga ndi kugwiritsa ntchito golide kwadzetsa kufunikira kwa sodium cyanide pakupanga migodi ya golide. Kutulutsa golide ku China kwakhala nthawi yayitali pakati pa apamwamba padziko lonse lapansi. Kugwiritsa ntchito kwambiri njira yochotsa golide yochokera ku cyanide, yomwe imagwira bwino ntchito pochotsa golide ku ore, kwathandizira kwambiri kufunikira kwa sodium cyanide. Pamene migodi ya golide ikukulirakulirabe, pokhudzana ndi ntchito zatsopano zamigodi komanso kukulitsa zomwe zilipo kale, kufunikira kwa sodium cyanide monga chinthu chofunika kwambiri chochotsamo chakula molingana.
Mtengo - kuchita bwino ndi Scale Phindu
Opanga aku China adagwiritsa ntchito chuma chambiri. Ndi kupanga kwakukulu, atha kuchepetsa kwambiri ndalama zopangira. Kukwera mtengo kumeneku kwapangitsa China - kupanga sodium cyanide kukhala yopikisana pamsika wapadziko lonse lapansi. Kuphatikiza apo, kutukuka kwaukadaulo wapamwamba wopanga ku China kwapititsa patsogolo luso la kupanga komanso mtundu wazinthu. Kutha kupanga sodium cyanide yapamwamba kwambiri pamtengo wotsika wakopa makasitomala apakhomo ndi akunja, motero kumapangitsa kukula kwamakampani.
Kukula kwa Makampani a Downstream
Sodium cyanide imagwira ntchito ngati zida zofunika kwambiri m'mafakitale osiyanasiyana akumunsi, kuphatikiza kupanga mankhwala apakatikati, mankhwala, mankhwala ophera tizilombo, ndi electroplating. Kukula kwa mafakitalewa ku China kwadzetsa kufunikira kwakukulu kwa sodium cyanide. Mwachitsanzo, m'makampani opanga mankhwala, sodium cyanide imagwiritsidwa ntchito popanga mankhwala ena apakati. Pamene makampani opanga mankhwala aku China akuchulukirachulukira ndikupikisana kwambiri padziko lonse lapansi, kufunikira kwa sodium cyanide ngati zopangira zoyambira kwakulanso. Momwemonso, mumakampani opanga ma electroplating, omwe amagwiritsidwa ntchito kwambiri popanga zamagetsi ndi zinthu zokongoletsera, sodium cyanide imagwira ntchito yofunika kwambiri pakuwonetsetsa kuti plating yapamwamba kwambiri. Kukula kwa mafakitale akumunsiwa kwapereka maziko olimba a chitukuko cha kupanga sodium cyanide ku China.
Kutsiliza
Mwachidule, kusintha kwa China kukhala mtsogoleri wotsogola padziko lonse wa sodium cyanide ndi chifukwa cha zinthu zosiyanasiyana. Kuchuluka kwa kuchuluka kwa mafakitale a migodi ya golide, njira zogwirira ntchito zotsika mtengo, komanso kutukuka kwa mafakitale akumunsi kwa migodi za golide zathandizira kukula kodabwitsaku. Komabe, ndi kukula uku kumabwera ndi udindo woonetsetsa kuti chitetezo ndi njira zotetezera zachilengedwe. Popeza sodium cyanide ili ndi poizoni kwambiri, kugwiritsiridwa ntchito moyenera, kusungidwa, ndi mayendedwe ndikofunikira kwambiri. Pamene China ikupitirizabe kukhala patsogolo pa kupanga sodium cyanide, iyeneranso kutsogolera kugwiritsa ntchito njira zabwino zotetezera ndi kuteteza chilengedwe kuti kuchepetsa zoopsa zomwe zingagwirizane ndi mankhwala oopsawa.
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