Green Solutions rau Kub Mining: Sodium Cyanide Hloov hauv Indonesia

Indonesia yog lub tebchaws loj tshaj plaws hauv ASEAN, nrog thaj tsam thaj tsam ntawm 1.919 lab square kilometers thiab thaj chaw marine ntawm 3.16 lab square kilometers (tsis suav nrog thaj tsam kev lag luam tshwj xeeb). Lub teb chaws yog nplua nuj nyob rau hauv minerals. Cov khoom siv hlau loj muaj xws li bauxite, npib tsib xee, hlau xuab zeb, tooj liab, tin, kub, thiab nyiaj; Cov minerals uas tsis yog xim hlau feem ntau muaj xws li thee, limestone, thiab granite. Kuj tseem muaj qee qhov tshwj xeeb ntawm zinc, mercury, manganese, lead, kaolin, andesite, quartz xuab zeb, feldspar, dolomite, bentonite, zeolite, phosphate, thiab gypsum. Txawm li cas los xij, vim yog cov thev naus laus zis tshawb nrhiav geological tsis txaus, kev ua haujlwm tsis muaj zog, thiab kev txhim kho tsis zoo thiab kev siv peev txheej, tsoomfwv muaj kev nkag siab tsis tiav ntawm nws tus kheej cov peev txheej. Tau ntev, cov peev txheej ntxhia tau tsim thiab siv los ntawm cov tuam txhab txawv teb chaws. Raws li kev txheeb cais los ntawm Indonesia lub Ministry of Energy thiab Mineral Resources, cov pob zeb kub cov peev txheej thiab kev faib tawm yog raws li hauv qab no: kub reserves yog kwv yees li 1.91 lab tons, nrog pov thawj reserves ntawm 3.200 tons, feem ntau faib nyob rau hauv Sumatra, Sulawesi, Kalimantan, thiab Papua. Nyob rau hauv 2023. qhov ntau lawm yog hais txog 132 tons, nrog kwv yees li 890 kilograms ntawm kub tuav exported. Kub mining tau nyiam ntau tus neeg ua lag luam Suav thiab cov tub ua lag luam. Nyob rau hauv Indonesia, kub mines feem ntau muab faib mus rau hauv alluvial kub mines thiab oxidized ores. Cov txheej txheem heap leaching siv rau oxidized ores yog dav siv vim nws cov peev nyiaj tsawg thiab rov qab sai. Txawm li cas los xij, kev tsim kho heap leaching yog txwv los ntawm kev yuav khoom, cov ntaub ntawv xov xwm, thiab kev tsim kho thev naus laus zis, ua rau feem ntau cov tswv kuv pib siv. Sodium cyanide.

sodium cyanide ua rau ntau qhov teeb meem hauv Indonesia. Ua ntej, tus nqi yuav khoom yog siab, nrog rau kev lag luam tus nqi ntawm 50.000 txog 60.000 RMB ib tuj. Thib ob, Sodium Cyanide yog tshuaj lom heev; inhalation, noj, lossis dermal absorption tuaj yeem ua rau mob hnyav. Peb, sodium cyanide yog ua raws li kev tswj hwm nruj los ntawm tsoomfwv Indonesian, nrog kev pom zoo nruj thiab kev tswj xyuas kev muag khoom, kev cia khoom, thiab kev thauj mus los. Cov teeb meem no tau nkag siab zoo los ntawm peb cov tub ua lag luam Suav, tab sis ib txwm muaj qhov tsis muaj txiaj ntsig zoo rau kev daws teeb meem.

Raws li thaum ntxov 2016. ob peb environmentally phooj ywg kub extraction agents tau tsim nyob rau hauv Tuam Tshoj thiab tau dav siv. Shaanxi United Chemical yog ib lub tuam txhab tsom rau kev tsim khoom thiab kev tshawb fawb ntawm hydrogen cyanide derivatives thiab ib puag ncig tus phooj ywg kub extraction agents. Qhov kev ua tau zoo ntawm Shaanxi United ib puag ncig tus phooj ywg kub extraction agents tuaj yeem hloov sodium cyanide thiab tau muag thiab siv ntau tshaj kaum lub teb chaws thoob ntiaj teb, tau txais kev qhuas los ntawm cov neeg siv khoom.

1. Cov yam ntxwv ntawm Shaanxi United tus phooj ywg ib puag ncig tus phooj ywg kub extraction agents yog raws li nram no:

2. lawv yog cov phooj ywg ib puag ncig thiab cov khoom ntsuab (kuaj los ntawm cov chaw haujlwm tso cai, cov khoom raug cais raws li cov khoom lag luam);

3. lawv muaj tus nqi rov qab siab (tsim rau heap leaching, pas dej ua ke, nplawm leaching, thiab lwm yam);

4. lawv muaj kev ruaj ntseg zoo (nrog cov stabilizers zoo ntxiv kom txo tau kev cuam tshuam los ntawm cov khoom tsis zoo xws li S thiab As);

5. lawv muaj ntau yam kev siv (siv kub oxidized ores, thawj ores, sulfuric slag, kub concentrates, anode av nkos, thiab lwm yam);

6. lawv yooj yim siv (pH nqi ntawm 10-12. ntau npaum thiab txoj kev tuaj yeem ua tiav nrog cov txheej txheem cyanide);

7. lawv yog tus nqi tsim nyog, txo cov nqi peev piv rau sodium cyanide.

Siv Cov Lus Qhia

1. Daim ntawv thov Scope:

1. Siv tau Ore Hom: Kub thiab nyiaj oxide ores, haiv neeg ores, high-sulfur thiab high-arsenic kub ores, cyanide tailings, kub concentrates, sulfuric acid residues, anode av nkos, thiab lwm yam.

2. Cov Txheej Txheem Ua Cov Khoom Siv Tau: Kev lim dej hauv pob zeb, kev lim dej hauv pas dej, carbon-hauv-pulp (stirred leaching), thiab lwm yam.

2. Cov khoom siv: Khoom hmoov los yog granular daim ntawv

3. Txoj Kev Txiav Txim Siab: Ua kom yaj hauv dej ntawm chav tsev kub ua ntej siv (feem ntau, kev sib cais tuaj yeem nrawm nrawm hauv cov dej ntws los yog sib xyaw ua ke; thaum lub sij hawm heap leaching, lub pas dej da dej tuaj yeem ua rau ntawm ntug ntawm lub pas dej tsis zoo kom tso dej rov qab tom qab siv cov pa roj carbon monoxide ntxuav tus neeg sawv cev kub rau hauv lub pas dej tsis zoo).

4. Kev hloov pH: Feem ntau, txiv qaub lossis sodium hydroxide yog siv los kho thiab tswj tus nqi pH ntawm 10-12; Thaum cov dej xa rov qab pH tus nqi qis, alkalinity yuav tsum tau kho raws sijhawm; Yog tias tus nqi pH tseem siab dhau (ntau dua 12) rau lub sijhawm txuas ntxiv, nws tuaj yeem ua rau tsim cov alkaline nplai cuam tshuam rau cov pa roj carbon activated lossis ua rau cov kua passivation cuam tshuam rau leaching efficiency.

5. Kev suav tshuaj:

1. Cov koob tshuaj tuaj yeem raug xa mus los ntawm kev siv nyiaj ntawm sodium cyanide, thiab nws raug nquahu kom ua cov kev ntsuam xyuas cov ntxhia thiab xa mus rau qhov kev pom zoo (feem ntau txog 1-2 g / t rau kub oxide ores, nrog rau cov ntsiab lus ntawm tus neeg sawv cev kub rho tawm feem ntau khaws cia ntawm 0.3-0.8‰, kho raws li qib sib txawv ore thiab cov khoom tsis zoo).

2. Kev suav cov txheej txheem rau kev noj: Cov tshuaj ntxiv ntawm tus neeg sawv cev kub rho tawm = (tus nqi zoo tshaj plaws - ntsuas qhov ntsuas tam sim no) × ntim dej hauv lub pas dej da dej; Piv txwv li, yog hais tias qhov zoo tshaj plaws concentration tus nqi ntawm cov kub extraction tus neeg sawv cev yog 1.5‰ (raws li cov dej ntim), thiab cov dej rov qab concentration yog 0.6‰, nrog 500 cubic meters ntawm cov dej nyob rau hauv lub pas dej ua ke tsis zoo, ces cov tshuaj ntxiv yuav yog: (1.5 - 0.6) × 500 = 450 kg.

6. Cov txheej txheem siv khoom: (Ua raws li kev siv sodium cyanide hauv heap leaching thiab carbon leaching txheej txheem)

1. Heap Leaching thiab Pond Leaching Txheej Txheem: Sib tsoo cov ore raw, pawg / pas dej nws, leach, adsorb nrog activated carbon (zinc hmoov hloov), electrowinning, thiab smelting.

2. Carbon-in-Pulp txheej txheem (Stirred Leaching): Sib tsoo cov ore raw, zom nws, carbon leach, electrowinning, thiab smelting.

Kev vam meej Case ntawm Environmentally Friendly Gold Extraction Reagent

Lub Lingbao Wenyu Gold Mine hauv Henan tau ua qhov chaw kuaj thiab kev lag luam kev sim siv lub tshuab hluav taws xob tsawg-tshuaj ntsuab extraction reagent technology hauv nws txoj haujlwm ua kua txiv qaub cyanidation. Cov kev ntsuam xyuas tau ua tiav cov txiaj ntsig zoo tshaj plaws. Thaum cov kev sib tsoo fineness yog -0.074mm nrog cov ntsiab lus siab tshaj 90%, lub pulp concentration yog 40%, cov txiv qaub ntau npaum li cas yog 3kg / t, lub sij hawm alkaline pretreatment yog 2 teev, qhov ntau npaum li cas. ib puag ncig tus phooj ywg kub leaching tus neeg saib xyuas yog 600g / t, thiab lub sij hawm leaching yog 24 teev, tus kub leaching tus nqi mus txog 95.60%. Cov txiaj ntsig kev sim ua kom pom tias cov reagent no tuaj yeem hloov sodium cyanide hauv cov txheej txheem rho tawm kub. Tam sim no, cov reagent tau muab tso rau hauv kev siv. Piv nrog rau cyanide leaching, qhov leaching tus nqi nce 1.4%, qhov ntau npaum ntawm cov reagent raug txo los ntawm 200g / t, thiab lub sij hawm leaching yog luv luv los ntawm ntau tshaj 12 teev. Tsis tas li ntawd, kev soj ntsuam leaching toxicity ntawm cov tailings los ntawm ib puag ncig tus phooj ywg kub leaching tus neeg saib xyuas pom tau hais tias leaching toxicity nqi ntawm cyanide, tooj liab, lead, zinc, thiab arsenic nyob rau hauv cov tailings yog tag nrho nyob rau hauv tus txheej txheem txwv, tso cai rau ncaj qha tawm yam tsis muaj kev kho mob detoxification.

Hais txog kev siv ib puag ncig tus phooj ywg kub xaiv tus neeg sawv cevs, nws yog ib qho tsim nyog yuav tsum muaj cov kws tshaj lij kev ua haujlwm ua cov kev sim hauv cov theem thaum ntxov ntawm cov mining. Qhov no yog vim qhov sib txawv mining thaj chaw thiab ntau hom ore yuav tawm los sib txawv nrog cov neeg xaiv xaiv. Qhov ntau npaum li cas thiab seb puas yuav ntxiv lwm yam khoom siv tshuaj lom neeg yuav tsum tau txiav txim siab raws li kev sim ua ntej. Lub sijhawm no, Shaanxi United Chemical yuav muab tag nrho cov kev pabcuam tsim nyog los pab koj ua tiav cov kev xeem.

Yog xav paub ntxiv txog kev tshaj lij? Tiv tauj peb!

Cov lus qhia sov: Yog tias koj xav paub ntau ntxiv, xws li cov lus hais, cov khoom, kev daws teeb meem, thiab lwm yam,