KR102173201B1 - 마이크로웨이브를 이용한 불순물 제거방법 및 이에 사용되는 제거장치 - Google Patents
마이크로웨이브를 이용한 불순물 제거방법 및 이에 사용되는 제거장치 Download PDFInfo
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- KR102173201B1 KR102173201B1 KR1020180172212A KR20180172212A KR102173201B1 KR 102173201 B1 KR102173201 B1 KR 102173201B1 KR 1020180172212 A KR1020180172212 A KR 1020180172212A KR 20180172212 A KR20180172212 A KR 20180172212A KR 102173201 B1 KR102173201 B1 KR 102173201B1
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- 239000012535 impurity Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000010931 gold Substances 0.000 claims abstract description 113
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 105
- 229910052737 gold Inorganic materials 0.000 claims abstract description 105
- 239000012141 concentrate Substances 0.000 claims abstract description 83
- 239000003929 acidic solution Substances 0.000 claims description 56
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 36
- 229910017604 nitric acid Inorganic materials 0.000 claims description 36
- 229910052785 arsenic Inorganic materials 0.000 claims description 24
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical group [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 24
- 229910052797 bismuth Inorganic materials 0.000 claims description 20
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 20
- 230000001678 irradiating effect Effects 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 37
- 239000007787 solid Substances 0.000 description 22
- 230000008569 process Effects 0.000 description 18
- 239000013585 weight reducing agent Substances 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 9
- 239000011028 pyrite Substances 0.000 description 9
- 229910052683 pyrite Inorganic materials 0.000 description 9
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 7
- 238000009835 boiling Methods 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 238000010828 elution Methods 0.000 description 5
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005596 ionic collisions Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003921 particle size analysis Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 238000003321 atomic absorption spectrophotometry Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- -1 nitrate ions Chemical class 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052947 chalcocite Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
도 2는 본 발명의 다른 실시예에 따른 마이크로웨이브를 이용한 불순물 제거장치를 도시한 것이다.
도 3a는 본 발명의 일 실시예에 따른 금 정광의 입도 분석 결과를 도시한 그래프이다.
도 3b는 본 발명의 일 실시예에 따른 금 정광의 X선 회절 분석(X-ray diffraction, XRD) 결과를 도시한 그래프이다.
도 4a 내지 도 4d는 본 발명의 실시예 1에 따른 불순물 제거방법과, 마이크로웨이브의 조사 시간 조건을 변경한 다른 실시예들의 불순물 제거방법을 통해 얻어진 금 정광의 고체 잔류물에 있어, 상기 고체 잔류물을 분석한 그래프이다.
도 5a 내지 도 5d는 본 발명의 실시예 1에 따른 불순물 제거방법과, 질산 용액의 농도를 변경한 다른 실시예들의 불순물 제거방법을 통해 얻어진 금 정광의 고체 잔류물에 있어, 상기 고체 잔류물을 분석한 그래프이다.
도 6a 내지 도 6d는 본 발명의 실시예 1에 따른 불순물 제거방법과, 질산 용액 내 첨가된 금 정광의 첨가량을 변경한 다른 실시예들의 불순물 제거방법을 통해 얻어진 금 정광의 고체 잔류물에 있어, 상기 고체 잔류물을 분석한 그래프이다.
Bi | AsAAS | Au |
148.36 | 2236.87 | 81.36 |
Claims (7)
- 금 정광의 불순물 제거방법에 있어서,
상기 불순물 제거방법은
산성 용액이 포함된 산성 용액 수용부를 준비하는 단계;
상기 산성 용액 수용부에 금 정광을 투입하는 단계;
상기 산성 용액 수용부를 마이크로웨이브 조사장치에 배치하는 단계; 및
상기 산성 용액 수용부에 투입된 산성 용액 및 금 정광에 마이크로웨이브를 조사하는 단계를 포함하고,
상기 불순물은 비소(As) 또는 비스무트(Bi)이고,
상기 금 정광은 상기 산성 용액 대비 1 중량 % 내지 10 중량 %로 투입되는 것을 특징으로 하는 마이크로웨이브를 이용한 불순물 제거방법.
- 제1항에 있어서,
상기 산성 용액의 종류는 질산(HNO3), 염산(HCl) 및 황산(H2SO4)으로 이루어진 그룹에서 선택되는 적어도 어느 하나인 것을 특징으로 하는 마이크로웨이브를 이용한 불순물 제거방법.
- 삭제
- 제1항에 있어서,
상기 마이크로웨이브를 조사하는 단계는, 3 kW의 파워를 인가하여 30초 내지 600초의 시간 동안 마이크로웨이브를 조사하는 것을 특징으로 하는 마이크로웨이브를 이용한 불순물 제거방법.
- 산성 용액 및 금 정광이 수용되는 산성 용액 수용부가 배치되는 챔버;
상기 챔버에 마이크로웨이브를 조사하는 마그네트론; 및
상기 마그네트론의 온도 및 파워를 제어하는 제어부를 포함하고,
상기 마이크로웨이브를 챔버로 인도하는 도파관; 및
상기 마그네트론의 온도에 따라 과열 여부를 판단하여 상기 마그네트론을 냉각하는 마그네트론 냉각장치를 포함하는 마이크로웨이브를 이용한 불순물 제거장치.
- 제5항에 있어서,
상기 불순물 제거장치는 가스포집장치를 더 포함하는 것을 특징으로 하는 마이크로웨이브를 이용한 불순물 제거장치.
- 제5항에 있어서,
상기 불순물 제거장치는 높이 조절 선반을 더 포함하는 것을 특징으로 하는 마이크로웨이브를 이용한 불순물 제거장치.
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KR102777622B1 (ko) * | 2021-11-30 | 2025-03-10 | 조선대학교 산학협력단 | 마이크로웨이브를 이용한 수처리 및 유가 금속 회수 장치 및 이를 이용한 수처리 및 유가 금속 회수방법 |
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