Cyanide zahabu yo gukoresha inyungu

Cyanidation nimwe muburyo nyamukuru bwo kugirira akamaro ibirombe bya zahabu, kandi birashobora kugabanywamo ubwoko bubiri: gukurura cyanidation na percolation cyanidation.Muri ubu buryo, kuvanga cyanide yo kuvoma zahabu ahanini bikubiyemo uburyo bwo gusimbuza cyanide-zinc (CCD na CCF) hamwe na cyanide ya karubone idashungura (CIP na CIL).Ibikoresho bisanzwe bikoreshwa mu gutandukanya zahabu nibikoresho ahanini byo gusimbuza ifu ya zinc, kumeneka ikurura, gukoresha bike byihuse desorption electrolysis.

1. Igikoresho cyo gusimbuza ifu ya Zinc nuburyo bukoresha ifu ya zinc kugirango ikure zahabu mumazi y'agaciro mugikorwa cyo gusimbuza cyanide-zinc.Ubuvumbuzi bwa none bugamije ahanini ibikoresho byunguka ubutare bwa zahabu burimo ifeza nyinshi mu bucukuzi bwa zahabu.Nyuma yo kweza amazi meza no gukuramo ogisijeni, hongerwaho igikoresho cyo gusimbuza ifu ya zinc kugirango ubone icyondo cya zahabu.Iyo ifu ya zinc (silk) ikoreshwa mugusimbuza imvura no kugarura zahabu, uburyo bwitwa cyanide-zinc bwo gusimbuza (CCD na CCF) burashobora gukoreshwa mubikorwa byumusaruro, cyangwa gusimbuza ifu ya zinc birashobora gukoreshwa mugukemura ibisubizo bihenze (ibisubizo byokunywa ).Muri rusange, usibye ibirombe bya zahabu birimo feza nyinshi, ibikoresho byo gusimbuza ifu ya zinc birashobora no gukoreshwa mugutunganya intungamubiri za zahabu zikeneye kuzamura urwego rwabo.

2. Ikigega cyikubye kabiri cyikurura Ikigega cyikubitiro kabiri nigikoresho gikoreshwa cyane mu gutunganya amabuye y'agaciro mugikorwa cyo gukuramo zahabu ya karubone (uburyo bwa CIP na CIL).Munsi yo gukurura no gukurura ibikorwa byikubye kabiri, igitonyanga gitemba kiva munsi yikigo, kinyura mumasahani azengurutswe, gitera umwuka kumpera yumutwe, kivanga nigituba kandi kizenguruka hejuru.Iki gisubizo kirakwiriye kubisabwa hamwe nuburemere buto bwihariye, ubukonje buke nigipimo cyimvura gitinze., iyo ingano yubutare buri hejuru ya -200 mesh hamwe nibisubizo bya zahabu bitarenze 45%, imvange imwe ihagaritswe irashobora gushingwa.Absorption nibindi bikorwa byo kuvanga.Mubikorwa bya CIP byo kubitsa zahabu, guhisha hamwe na adsorption nibikorwa byigenga.Mubikorwa byo kwinjiza, inzira yo kumena irarangiye.Ingano, ingano, hamwe nuburyo imikorere yikigega cya adsorption igenwa nibipimo bya adsorption.CIL inzira yo kubitsa zahabu ikubiyemo icyarimwe icyarimwe no gukora adsorption.Kubera ko ibikorwa byo kumena muri rusange bifata igihe kirekire kuruta ibikorwa bya adsorption, ingano yikigega gikurura igenwa nigipimo cyo kumeneka kugirango hamenyekane urugero rwa aeration na dose.Kuberako igipimo cyo kwinjiza gifitanye isano nimikorere ya zahabu yashonze, urwego 1-2 rwo kubanza gushiramo ubusanzwe bikorwa mbere yo kwibizwa ku nkombe kugirango byongere ubunini bwa zahabu yashonze mu kigega cya adsorption kandi byongere igihe cyo kumeneka.

3. Gukoresha bike byihuse sisitemu ya desorption electrolysis.Sisitemu yo gukoresha vuba ya desorption electrolysis ni igikoresho cyibikoresho byo kwambara amabuye ya zahabu desorbs na electrolytike karubone yuzuye zahabu kugirango itange icyondo cya zahabu mubushyuhe bwinshi n’umuvuduko mwinshi.Carbone yuzuye zahabu yoherejwe kuri ecran ya carbone itandukanya (mubisanzwe umurongo unyeganyega ugaragara) ukoresheje pompe ya karubone cyangwa ikurura ikirere.Ubuso bwa ecran bwogejwe namazi meza kugirango utandukane karubone.Carbone yuzuye zahabu yinjira mu kigega cyo kubikamo karubone, amazi meza n'amazi atemba.Injira igice cya mbere cya tank ya adsorption.Gukoresha imbaraga nke kandi byihuse desorption electrolysis sisitemu yo kongeramo anion irashobora gusimbuza Au (CN) 2- na Au (CN) 2-, kandi amazi yagaciro yabonetse mugutandukanya karubone yuzuye zahabu irashobora kugarura zahabu ikomeye binyuze muburyo bwa ionisation.Uburyo buke bwo gukoresha ingufu za desorption electrolysis sisitemu ifite desorption irenga 98% mugihe cy'ubushyuhe bwo hejuru (150 ° C) hamwe n'umuvuduko mwinshi (0.5MPa), kandi gukoresha ingufu ni 1/4 ~ 1/2 gusa mubisanzwe Sisitemu.Ibidafite uburozi hamwe ningaruka-ngaruka zirimo karubone ikora, ishobora kubyara karubone.Carbone itananirwa ntigomba kuvugururwa nuburyo bwumuriro, bizigama ikiguzi cyo kuvugurura karubone.Ibishishwa bya zahabu biri mu rwego rwo hejuru, ntibisaba electrolysis ihindagurika, kandi biroroshye kuyikuramo.Muri icyo gihe, sisitemu yo gukoresha vuba ya desorption electrolysis nayo ifata ingamba eshatu z'umutekano, arizo ubwenge bwa sisitemu ubwayo, kugabanya umuvuduko ukabije no kugabanya uburyo, hamwe n’umutekano w’ubwishingizi.