Shaanxi United Chemical: Kupereka Mayankho a Green Sodium Cyanide ku Kazakhstan

M'munda wa mankhwala mankhwala kotunga, Shaanxi United Chemical wakhala ali patsogolo pa makampani ndi chithunzi cha akatswiri ndi udindo. Tsopano, ndife olemekezeka kwambiri kuti titha kupereka zabwino kwambiri Sodium Cyanide zinthu za Kazakhstan.

Sodium cyanide, monga mankhwala ofunika kwambiri opangira mankhwala, amagwiritsidwa ntchito kwambiri m'mafakitale ambiri, makamaka m'migodi ya golide ndi kupindula. Komabe, chifukwa cha katundu wake wapadera, imayendetsedwa mosamalitsa ndi boma la China. Tikudziwanso mozama za kuvulaza komwe kungachitike sodium cyanide ku chilengedwe. Ngati cyanide - yomwe ili ndi madzi oipa omwe amapangidwa mu migodi ya golidi ndi njira yopezera phindu silikonzedwa bwino, idzakhala chiwopsezo chachikulu cha chilengedwe. Cyanide m'madzi owonongeka a zomera za golide cyanidation amatsimikiziridwa ndi mapangidwe a miyala ndi momwe amagwirira ntchito. Kuphatikiza pa cyanide, ilinso ndi zinthu monga thiocyanate. Ambiri mwa ma thiocyanatewa amachokera ku njira ya aeration popanga kapena momwe amachitira pakati pa maatomu a cyanide ndi osakhazikika a sulfure panthawi ya leaching. Kuphatikiza apo, cyanide - yomwe ili ndi madzi otayira imakhala ndi zinthu zambiri zapoizoni zachitsulo za cyanide. cyanides. Chifukwa chake, Shaanxi United Chemical siwogulitsa mankhwala komanso ndi katswiri wa Chitetezo cha chitetezo.

Ubwino Woteteza Chilengedwe

Ponena za kuteteza chilengedwe, tili ndi ubwino waukulu. Kampaniyo imayika ndalama zambiri mu kafukufuku ndi chitukuko cha ukadaulo, ndipo imapereka chithandizo chokwanira chaukadaulo pamavuto azachilengedwe omwe angabuke panthawi yopanga, mayendedwe, kusungira ndi kugwiritsa ntchito Sodium cyanide . Gulu lathu la akatswiri lingathandize mabizinesi am'deralo ku Kazakhstan kukhazikitsa njira yonse yoyang'anira zachilengedwe ndikuchepetsa kupanga zinthu zodetsa kuchokera ku gwero. Mwachitsanzo, popanga, timagwiritsa ntchito ukadaulo wapamwamba wopangira zinthu zobiriwira kuti tiwongolere kugwiritsa ntchito zinthu zopangira ndikuchepetsa kutulutsa zinyalala.

Njira Zochizira Cyanide - zomwe zili ndi Madzi Otayira

Pochiza cyanide - yomwe ili ndi madzi onyansa m'migodi ya golide ndi kupindula, timadziwa njira zingapo zokhwima komanso zothandiza:

• Njira Yopangira Chlorini ya Alkaline : Iyi ndi njira yodziwika bwino yowonongera Cyanides m'madzi otayidwa a zomera za golide ndipo imagwiritsidwa ntchito kwambiri pochiza zomera za electroplating za cyanide, zomera za golide za cyanidation, zomera za golide za cyanidation ndi zina. Mfundo yake ndikugwiritsa ntchito chlorine yamadzimadzi, mpweya wa chlorine kapena ufa wothira kuti cyanide m'madzi otayidwa ikhale zinthu zopanda poizoni monga carbon dioxide ndi nayitrogeni.

• Njira Yothira Sulfur Dioxide - Air Oxidation : Imadziwikanso kuti njira ya InCo, idapangidwa ndi American InCo Metals Company kumayambiriro kwa zaka za m'ma 1980. Njirayi imagwiritsa ntchito sulfur dioxide ndi mpweya ngati ma oxidants kuti ikhetse ma cyanides m'madzi otayidwa pansi pa mkuwa - ion catalyst, ndikupanga bicarbonate ndi ammonium ferrous sulfate. Sikuti imangochotsa ma ayoni a cyanide aulere, hydrogen ya molekyulu ndi ma cyanides ovuta, komanso imachotsa ma ferrocyanide complexes omwe ndi ovuta kuwachotsa pogwiritsa ntchito njira ya chlorination, zomwe zimapangitsa kuti madzi otayidwa omwe akonzedwa akwaniritse miyezo yotulutsira madzi.

• Njira Yothira Oxidation ya Hydrogen Peroxide : Ndi yoyenera kuchiza madzi otayira okhala ndi cyanide yochepa. Pogwiritsa ntchito chothandizira cha copper-ion pa pH ya alkaline ya 10 - 11, hydrogen peroxide imathira oxidize ma cyanides kuti apange zinthu monga ma oxides ndi ammonium ferrous sulfate. Pakati pawo, ma ayoni achitsulo cholemera amapanga ma hydroxide precipitates, ndipo ma ayoni a ferrocyanide ndi ma ayoni ena achitsulo cholemera amapanga mchere wa ferrocyanide complex.

• Njira Yothira Ozone : Ndi yoyenera kuchiza madzi otayira a cyanide omwe ali ndi zinyalala zochepa. Pa pH ya alkaline ya 11 - 12, ozone imathira oxidize ma cyanide kuti apange bicarbonate ndi nayitrogeni. Ngakhale kuti njira iyi singachotse ma ferrocyanide complexes, ili ndi ubwino wosavuta komanso wosavuta. Palibe chifukwa chogulira ndi kunyamula mankhwala, ndipo jenereta ya ozone yokha ndiyo imafunika kuti ichotse madzi otayira omwe ali ndi cyanide. Komabe, ilinso ndi zovuta zogwiritsa ntchito mphamvu zambiri komanso ndalama zambiri zochizira. Pofuna kuthetsa vuto la ma ferrocyanide complexes, Tinker Air Force Base ku United States idapanga njira yophatikizana ya ultraviolet photolysis ndi njira ya ozone ndipo idayesa bwino. Pambuyo pake, njira yofanana ya O3/photolysis idapangidwanso.

Chitsimikizo cha Mayendedwe ndi Kusunga

Mu ulalo wa mayendedwe, tili ndi zida zonyamulira mankhwala owopsa komanso njira zowongolera zoyendera kuti tiwonetsetse kuti sodium cyanide ifika bwino komwe ikupita ndikuchepetsa kuwononga chilengedwe panjira. Pankhani yosungira, timapereka njira zosungiramo zasayansi ndi zida zopewera ngozi monga kutayikira kuti zisawononge nthaka ndi magwero amadzi. Pakakhala zochitika zosayembekezereka, tilinso ndi akatswiri odziwa chithandizo chadzidzidzi komanso magulu omwe amatha kuyankha mwachangu ndikuchepetsa kuwonongeka kwa chilengedwe.

Shaanxi United Chemical adzipereka kugwira ntchito limodzi ndi anzawo ku Kazakhstan kuti akwaniritse chitukuko chobiriwira komanso chokhazikika pomwe akupereka zinthu zapamwamba za sodium cyanide. Tikukhulupirira kuti kudzera muzoyesayesa zathu, titha kuthandizira pakukula kwa mafakitale ku Kazakhstan ndikuwonjezeranso chitsimikiziro choteteza chilengedwe.