Feem ntau Specifications thiab Daim Ntawv Thov Scenario ntawm Sodium Cyanide

Introduction

Sodium cyanide (NaCN) yog ib yam tshuaj lom neeg uas muaj kev siv ntau hauv kev lag luam, txawm tias nws muaj tshuaj lom heev los xij. Nws yog ib yam khoom dawb, crystalline uas yaj tau zoo hauv dej. Tsab xov xwm no yuav tshawb nrhiav cov lus qhia dav dav ntawm sodium cyanide thiab nws cov kev siv ntau yam hauv ntau yam lag luam.

Cov Lus Qhia Tshwj Xeeb

Purity Levels

• 98% Kev Huv Si : Qhov no yog qib uas feem ntau muaj nyob rau hauv kev ua lag luam. Rau cov khoom Sodium Cyanide khov kho , ntawm qib kev huv si no, cov khoom tseem ceeb, Sodium cyanide (NaCN), yuav tsum muaj tsawg kawg yog 98.0%. Nrog rau qhov no, lwm yam kev ntsuas xws li NaOH cov ntsiab lus yuav tsum yog ≤0.3%, Na₂CO₃ ≤0.2%, dej noo ≤0.2%, thiab cov khoom tsis yaj hauv dej ≤0.01%. Qib no yog qhov tsim nyog rau ntau yam kev siv hauv kev lag luam uas xav tau qib kev huv si siab tab sis tsis yog qhov tseeb tshaj plaws. Piv txwv li, hauv qee cov txheej txheem ntxuav hlau, qhov no 98% sodium cyanide ntshiab tuaj yeem tshem tawm cov oxides thiab cov kuab paug ntawm qhov chaw.

• 99% Kev Huv Si : Sawv cev rau qib siab dua, cov khoom sodium cyanide khov kho nrog 99% kev huv si muaj cov qauv nruj dua. Cov ntsiab lus NaCN yuav tsum yog ≥99.0%, nrog rau cov dej noo ≤0.5%, cov khoom tsis yaj hauv dej ≤0.01%, cyanide ≤0.01%, chloride ≤0.20%, thiab sulfate ≤0.07%. Qib kev huv si siab dua no feem ntau siv rau hauv cov ntawv thov uas muaj cov khoom tsis huv tuaj yeem cuam tshuam rau cov tshuaj lom neeg. Hauv kev tsim cov tshuaj electroplating zoo, 99% sodium cyanide ntshiab pab ua kom tiav cov txheej hlau zoo sib xws thiab zoo dua.

Daim ntawv lub cev

• Khoom Kho : Sodium cyanide feem ntau muaj nyob rau hauv daim ntawv khoom kho, uas tuaj yeem ua cov duab ntawm cov blocks, cov khoom siv crystalline, lossis hmoov. Cov duab khoom kho yog qhov zoo dua rau kev khaws cia thiab kev thauj mus los yooj yim dua. Cov duab khoom kho yuav tsis xau thaum thauj mus los piv rau cov duab kua. Nws feem ntau ntim rau hauv cov hnab kaw ob npaug hauv lub thawv ntoo, feem ntau hnyav li 1 tonne. Cov khoom kho sodium cyanide yog siv dav hauv kev lag luam mining rau kev rho kub. Cov briquettes, uas yog li 98% ntshiab thiab zoo li dawb, zoo li cov briquettes thee thiab yooj yim rau kev tuav hauv kev ua haujlwm mining loj.

• Kua : Kua sodium cyanide, txawm hais tias tsis tshua muaj vim muaj teeb meem kev thauj mus los thiab kev khaws cia, kuj muaj. Qhov concentration feem ntau rau kua sodium cyanide siv rau hauv qee daim ntawv thov yog 30%. Hauv daim ntawv no, cov ntsiab lus NaCN yuav tsum yog ≥30.0%, nrog NaOH ≤1.0%, Na₂CO₃ ≤1.0%, NaCl ≤0.027%, thiab NaCOOH ≤0.60%, thiab tus nqi APHA (kev ntsuas xim) ≤100. Kua sodium cyanide yog siv rau hauv qee cov txheej txheem kev lag luam uas xav tau cov tshuaj sib xws thiab yooj yim - dispersed, xws li hauv qee cov txheej txheem rho tawm tshwj xeeb.

Daim Ntawv Thov

Mining Kev lag luam

• Kev Rho Kub thiab Cov Hlau Muaj Nqis : Sodium cyanide siv dav hauv kev khawb kub thiab lwm yam hlau muaj nqis. Cov txheej txheem no, hu ua cyanide leaching lossis kub cyanidation, siv qhov zoo ntawm qhov sib raug zoo ntawm kub (I) rau cyanide. Thaum muaj huab cua (oxygen) thiab dej, cov hlau kub oxidizes thiab yaj, tsim cov kub cyanide (lossis kub sodium cyanide) thiab sodium hydroxide. Cov tshuaj lom neeg tuaj yeem sawv cev ua: 4Au + 8NaCN + O₂+ 2H₂O → 4Na[Au(CN)₂]+ 4NaOH. Cov ores qib qis tuaj yeem ua tiav siv txoj kev no, ua rau nws yog txoj hauv kev pheej yig los rho kub. Cov khoom khov ntawm sodium cyanide, tshwj xeeb tshaj yog 98% briquettes ntshiab, feem ntau siv rau hauv kev ua haujlwm khawb loj vim lawv yooj yim ntawm kev tuav thiab muaj cov khoom xyaw nquag ntau.

Tshuaj Kev Lag Luam

• Kev Tsim Cov Nitriles : Sodium cyanide ua haujlwm ua cov khoom siv tseem ceeb rau kev tsim cov nitriles. Cov cyanide ion (CN⁻) hauv sodium cyanide ua haujlwm ua nucleophile, pub ib khub electron los tsim cov tshuaj sib txuas. Nitriles yog cov khoom tseem ceeb hauv ntau yam tshuaj lom neeg thiab tshuaj. Piv txwv li, acrylonitrile, uas yog siv rau hauv kev tsim cov fibers hluavtaws xws li acrylic thiab hauv kev tsim cov yas, tuaj yeem tsim tau siv sodium cyanide ua tus neeg nruab nrab tseem ceeb.

• Kev Tsim Cov Hydrocyanic Acid Thiab Lwm Cov Cyanides : Nws yog siv los tsim cov hydrocyanic acid (HCN), uas yog cov khoom ua ntej rau ntau lwm cov tshuaj lom neeg. Tsis tas li ntawd, sodium cyanide yog siv los tsim ntau yam inorganic cyanides xws li potassium cyanide (KCN), cyanuric chloride, thiab cyanogen chloride. Cov Cyanides no pom cov ntawv thov hauv ntau yam lag luam, los ntawm electroplating mus rau kev tsim tshuaj lom neeg.

Kev ua hlau

• Kev Ntxuav Hlau : Sodium cyanide yog siv los ua cov tshuaj ntxuav hlau. Nws tuaj yeem tshem tawm cov oxides thiab cov av ntawm cov hlau, txhim kho qhov zoo ntawm cov hlau. Qhov no yog qhov tseem ceeb hauv cov txheej txheem uas xav tau qhov chaw hlau huv rau kev kho tom qab xws li pleev xim, txheej, lossis soldering. Lub peev xwm ntawm sodium cyanide los cuam tshuam nrog cov hlau oxides thiab yaj lawv ua rau nws yog tus neeg sawv cev muaj txiaj ntsig hauv kev npaj qhov chaw hlau.

• Kev Siv Hluav Taws Xob : Hauv kev siv hluav taws xob, sodium cyanide yog siv los tsim cov tshuaj electroplating. Nws pab tso ib txheej hlau nyias nyias rau ntawm lub substrate, txhim kho qhov zoo li cas, tiv taus corrosion, thiab tiv taus hnav ntawm cov khoom. Piv txwv li, hauv kev siv nyiaj plating, sodium cyanide yog siv rau hauv lub dab dej plating los pab txhawb kev tso cov nyiaj ions sib npaug rau ntawm cov khoom uas raug plated. Qhov huv ntawm sodium cyanide, tshwj xeeb tshaj yog qib 99%, yog qhov tseem ceeb hauv kev siv hluav taws xob kom ntseeg tau tias muaj cov txheej hlau zoo thiab sib xws.

Kws Tshuaj Lag Luam

• Nruab Nrab Hauv Kev Tsim Tshuaj : Sodium cyanide siv tau ua ib qho nruab nrab hauv kev tsim cov tshuaj. Piv txwv li, hauv kev tsim cov tshuaj loog (tshuaj loog mob) thiab tshuaj tiv thaiv qaug dab peg, sodium cyanide koom nrog cov tshuaj lom neeg uas tsim cov khoom tseem ceeb ntawm cov tshuaj no. Txawm li cas los xij, vim nws muaj tshuaj lom heev, cov txheej txheem kev nyab xeeb nruj heev raug ua raws li thaum siv nws hauv kev tsim tshuaj.

Lwm Yam Siv Tau

• Hauv kev tsim cov xim zas : Sodium cyanide yog siv rau hauv kev tsim cov xim zas. Nws koom nrog cov tshuaj lom neeg uas pab tsim cov chromophores (ib feem ntawm cov molecule uas muab xim) hauv cov xim zas. Ntau hom xim zas, xws li cov uas siv hauv kev lag luam textile, tej zaum yuav xav tau sodium cyanide hauv lawv cov txheej txheem tsim.

• Ua tshuaj tua nas (txawm tias tsis tshua muaj) : Keeb kwm los, sodium cyanide tau siv los ua tshuaj tua nas. Txawm li cas los xij, vim nws muaj tshuaj lom heev rau cov kab mob uas tsis yog lub hom phiaj thiab tib neeg, thiab muaj peev xwm ua rau muaj kuab paug rau ib puag ncig, nws txoj kev siv los ua tshuaj tua nas tau raug txo qis heev.

Kev Txiav Txim Siab Kev Nyab Xeeb

Nws yog ib qho tseem ceeb kom nco ntsoov tias sodium cyanide yog tshuaj lom heev. Nws tuaj yeem ua rau tuag taus yog tias nqus tau, nqus los ntawm daim tawv nqaij, lossis nqos. Txawm tias me me, tsawg dua 5 mg / kg lub cev hnyav rau 70 - kg tus neeg, tuaj yeem ua rau tuag taus. Thaum sib cuag nrog huab cua los yog dej, nws tso tawm corrosive, flammable, thiab tshuaj lom hydrogen cyanide gas. Yog li, kev ntsuas kev nyab xeeb nruj yuav tsum tau ua raws li thaum tuav, khaws cia, thiab thauj cov sodium cyanide. Cov neeg ua haujlwm hauv kev lag luam uas siv sodium cyanide yuav tsum tau muab cov cuab yeej tiv thaiv tus kheej tsim nyog, thiab cov tshuab ua pa kom zoo yuav tsum nyob hauv qhov chaw los tiv thaiv kev tsim cov pa phem.

xaus

Sodium cyanide, txawm tias nws cov tshuaj lom neeg siab, ua lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam vim nws cov khoom siv tshuaj lom neeg tshwj xeeb. Cov kev qhia tshwj xeeb ntawm 98% thiab 99% purity nyob rau hauv cov ntaub ntawv khoom thiab cov kua ua kom haum rau cov kev lag luam sib txawv. Los ntawm mining precious hlau mus rau synthesizing chemicals thiab pharmaceuticals, nws daim ntawv thov muaj ntau haiv neeg. Txawm li cas los xij, cov kev pheej hmoo cuam tshuam xav kom ua raws li kev nruj kev nyab xeeb thiab kev tiv thaiv ib puag ncig los xyuas kom muaj kev noj qab haus huv ntawm cov neeg ua haujlwm thiab ib puag ncig.