Molao-motheo oa Sodium cyanide ts'ebetsong ea Carbon-in-Pulp bakeng sa ho Emola Khauta

Selelekela

The k'haboneMokhoa oa ho ntša khauta ka har'a pulp (CIP) ke mokhoa o sebelisoang haholo indastering ea merafo ea khauta bakeng sa ho ntša khauta ho tsoa lerung. cyanide e bapala karolo ea bohlokoa tšebetsong ena. Sengoliloeng sena se shebisisa melao-motheo e qaqileng ea hore na joang Sodium cyanide mesebetsi ts'ebetsong ea CIP bakeng sa Khauta e ntšoang.

Karabelo ea Cyanidation: Motheo oa ho Qhala Khauta

1. Mokhoa oa ho Etsa Lik'hemik'hale

Sodium cyanide (NaCN) ke motsoako o sebetsang haholo. Ha e pepeselitsoe oksijene, e arabela ka khauta e teng ka har'a tšepe. Boitšoaro bo fetola khauta e sa qhibiliheng ka har'a ore hore e be sebopeho se qhibilihang ka ho etsa motsoako o tsitsitseng o nang le khauta. Mohato ona oa ho rarahana ke oa bohlokoa kaha o lumella khauta hore e arohane le likarolo tse tiileng tsa ore.

2. Karolo ea Oksijene

Oksijene ke karolo ea bohlokoa ka ho fetisisa Karabelo ea cyanidation, e sebetsa joalo ka ntho e etsang oxidizing ho thusa ho pshatla khauta. Ntle le oksijene, karabelo pakeng tsa khauta le li-ion tsa cyanide e ne e tla tsoela pele ka lebelo la khofu. Oksijene e fana ka maemo a hlokahalang bakeng sa ho theha setsi sa khauta-cyanide. Lits'ebetsong tsa indasteri, moea o atisa ho putsoa ka motsoako oa cyanide ho netefatsa phepelo e lekaneng ea oksijene. Palo ea oksijene ka tharollo e ama ka ho toba lebelo leo khauta e qhibilihang ka lona.

3. Taolo ea pH

Boemo ba pH ba tharollo ea cyanide ke ntlha ea bohlokoa ts'ebetsong ea cyanidation. Sodium cyanide, kaha e le letsoai la asiti e fokolang le setsi se matla, e ka kena hydrolysis ka metsing, e ka etsang hydrogen cyanide, khase e chefo haholo le e fetohang. Ho thibela sena, pH ea tharollo e hlokomeloa ka hloko boemong bo phahameng, hangata ho pota 10 - 11. pH ena e phahameng ha e tsitsise feela tharollo ea cyanide empa e boetse e eketsa katleho ea ho qhibiliha ha khauta. Ho feta moo, e thusa ho fokotsa tšitiso ea li-ion tse ling tsa tšepe ka har'a ore e ka sebetsanang le li-ion tsa cyanide le ho sitisa ts'ebetso ea ho ntšoa ha khauta.

Adsorption ea Khauta ea Cyanide Complexes ka Activated Carbon

1. Thepa e khethehileng ea Adsorption ea Activated Carbon

Hang ha khauta e qhibilihisoa ka har'a tharollo ea cyanide e le li-complexes, carbon activated e kenngoa ka har'a makhasi. Khabone e kentsoeng e na le sebaka se seholo le sebopeho sa porous, se e lumellang ho hohela le ho ts'oara li-complexes tsa khauta tsa cyanide. Li-micropores le mesopores ka har'a khabone e kentsoeng li fana ka libaka tse ngata tsa papatso. Mehaho ea khauta ea cyanide e huleloa libakeng tsena ka matla a fapaneng, ho kenyeletsoa matla a van der Waals le litšebelisano tsa motlakase.

2. Mokhoa oa Adsorption

Ts'ebetso ea adsorption ea li-complexes tsa khauta tsa cyanide ka khabone e kentsoeng e etsahala ka mehato e mengata. Ntlha ea pele, li-complexes tse tharollo li ea holimo ho carbon activated ka lebaka la phapang pakeng tsa tharollo le carbon surface. Hang ha e le ka holimo, li-complexes li khomarela libaka tse teng. Tekano e fihlelleha ha sekhahla seo li-complexes li ntseng li bapatsoa ka sona se lekana le sekhahla seo li lokolloang ka sona. Kamano e phahameng ea khabone e kentsoeng bakeng sa li-complexes tsa khauta tsa cyanide e thusa ho arola khauta hantle ho tsoa ho tharollo, e lebise tlhokomelo ho mehato e latelang ea ho hlaphoheloa.

Ho Desorption le ho Fumana Khauta ho tsoa ho Activated Carbon

1. Ts'ebetso ea Desorption

Kamora hore k'habone e kentsoeng e kentse li-complexes tsa khauta tsa cyanide 'me e tlale khauta, khauta e hloka ho ntšoa ka har'a khabone bakeng sa ts'ebetso e tsoelang pele. Mokhoa o tloaelehileng ke mokhoa oa Zadra. Ka mokhoa ona, carbon e jereng e tšoaroa ka tharollo e chesang ea Sodium cyanide le sodium hydroxide. Mocheso le motsoako oa lik'hemik'hale oa tharollo li senya maqhama pakeng tsa likarolo tsa khauta le carbon activated, e leng se etsang hore khauta e lokolloe hape ka tharollo.

2. Khauta Recovery ho tloha Desorbed Tharollo

Hang ha khauta e khutletse tharollong, mekhoa e mengata e ka sebelisoa ho e khutlisa. Mokhoa o mong o tsebahalang ke oa electroplating, moo motlakase o fetang ka tharollo ea ho kenya khauta ea tšepe holim'a cathode. Mokhoa o mong ke oa zinki. Zinc phofo e eketsoa ka tharollo, 'me ka karabelo ea redox, zinki e tlosa khauta ho tloha mokelikeli oa khauta oa cyanide, e leng se lumellang khauta e phallang hore e arohane le tharollo e sebelisa ho hloekisa kapa mekhoa e meng ea karohano.

fihlela qeto e

Sodium cyanide ke karolo ea bohlokoa ea tšebetso ea carbon-in-pulp bakeng sa ho ntšoa ha khauta. E nolofalletsa ho qhibiliha ha khauta ho tloha ore ka ho etsa li-complexes tse tsitsitseng boteng ba oksijene le tlas'a maemo a pH a laoloang. Mehato e latelang ea adsorption ka khabone ea activated, desorption ho tsoa khaboneng, le ho hlaphoheloa ha khauta kaofela li aha holim'a karabelo ea pele e kenyelletsang. sodium cyanide. Ho utloisisa melao-motheo ena ho bohlokoa bakeng sa ho ntlafatsa ts'ebetso le katleho ea ts'ebetso ea ho ntša khauta indastering ea merafo, ha re ntse re netefatsa polokeho e nepahetseng le taolo ea tikoloho ka lebaka la chefo ea sodium cyanide.