고농도 니켈 침출액으로부터 Na-PC88A에 의한 Co, Mn 및 Zn의 분리에 관한 연구

安鍾寬,朴慶鎬,孫廷秀,안재우 대한금속재료학회 2001 대한금속·재료학회지 Vol.39 No.12

Solvent extraction experiments for the separation of impurities from Ni-rich solution were carried out for manufacturing of high purity Ni compounds from acid leaching solution of spent Ni-Cd secondary battery. Synthesised and actual leaching solution were used as aqueous phases and PC88A saponified by sodium in kerosene were used as organic phases. The extraction order is Zn>Mn>Co>Ni and extraction percentage of metal ions was increased with an increase of the concentration of extractant, initial pH of aqueous phase and ratio of O/A The separation of Ni and other impurities was effectively accomplished at the condition of extraction stage = 1, O/A = 1, saponified percent 50%, initial pH 5.0, concentration of extractant 1.0M.

미생물처리를 이용한 산업폐기물로부터 금속의 제거 및 회수

안종관,김동진,Debaraj Mishra 한국자원공학회 2005 한국자원공학회지 Vol.42 No.5

Biometallurgical processes have been employed globally in the removal and recovery of valuable metals from industrial wastes. The toxicity of the mine waste contaminants can be abated by biosorption, bioremediation and biotransformation. In these conventional processes microorganisms play a potential role to mobilize the heavy metals and thus help in reducing toxicity. Metals like Hg, Cr, As, Se and Te can be transformed or volatilized by methanogenic bacteria. Bioleaching also has an attractive alternative in recovering metals from different industrial wastes. In these processes, metals like Zn, Cu, Al, Ni, Pb, Mn and Fe can be recovered from mine drainage, waste sludge, river sediments and electronic scrap. The present review describes different biological processes which are applied to treat industrial wastes. 산업폐기물로부터 유가금속의 제거와 회수시 최근에는 생물학적 제련법이 널리 주목받고 있다. 중금속을 용해시키거나 독성을 감소시키는 미생물을 이용하여, 흡착, 복원, 전환 등의 방법으로 광산 폐기물의 유독성을 감소시킬 수 있다. 수은, 크롬, 비소, 세륨 그리고 텔륨과 같은 금속은 메탄산화 박테리아에 의하여 변환되거나 용이하게 휘발된다. 또한 미생물 침출법을 활용할 경우, 광산폐수, 폐기물 슬러지, 하천 침전물, 전자 스크랩 등으로부터 아연, 구리, 알루미늄, 납, 망간 그리고 철과 같은 금속성분을 회수할 수 있다. 본 해설에서는 산업폐기물을 처리하는데 적용할 수 있는 여러 가지 생물학적인 처리방법에 대하여 기술하였다.

폐 초내열합금 염산침출 용액으로부터 Alamine304-1을 이용한 레늄의 용매추출분리

안종관,정희경,장재용,김민석,Ahn, Jong-gwan,Jung, Hee-Kyeoung,Jang, Jae-Young,Kim, Min-Seuk 한국자원리싸이클링학회 2015 資源 리싸이클링 Vol.24 No.5

Solvent extraction experiments for the separation and recovery of Re from hydrochloric acid leaching solution of spent super alloy by Alamine 304-1 were carried out. The effects of some variables, such as the nature and concentration of the extractants, HCl concentration, and the presence of impurities were investigated. The synthetic solutions of Re were prepared by dissolving ammonium perrhenate (APR), Alamine304-1, Cyanex272 and $D_2EHPA$ were used solvent extractants distilled in kerosene. The extraction percentage of Re by Alamine304-1 was higher than the other extractants as Cyanex272 and $D_2EHPA$ and the percentage is about 99%. Only 99% of Re was extracted in the presence of Al, Co and V in HCl solution. 폐 초내열합금으로부터 침출된 염산용액에서 레늄을 회수하기 위하여 용매추출법을 이용한 레늄의 분리연구를 수행하였다. 용매추출공정을 통해 수상은 레늄이 용해된 합성용액을 사용하고 추출제의 종류 및 농도, 수상의 pH, HCl의 농도, 불순물의 영향을 조사하는 연구를 진행하였다. 레늄의 원료로 Ammonium perrhenate ((APR), Aldrich, $NH_4ReO_4$)을 사용하였고, 수상에 존재하는 레늄을 유기상으로 추출하기 위해 추출제는 음이온추출제인 Alamine304-1, 양이온추출제인 Cyanex272과 $D_2EHPA$를 사용하였다. 음이온추출제인 Alamine304-1 사용시 레늄의 추출율이 99% 이상 나타났으며 수상의 pH 는 0-2 사이에서 99% 추출되었다. Alamine304-1의 농도를 0.1, 0.5, 1 및 2%으로 조절하여 추출실험한 결과, 농도가 증가함에 따라 추출율이 증가한다. 레늄용액에 알루미늄, 코발트, 바나듐을 첨가하여 용매추출법에 의해 분리 실험한 결과 레늄은 99.8 %으로 추출되었으나 기타 금속들은 거의 추출되지 않았다.

Mixer-setter를 이용한 연속공정에 의한 니켈과 코발트의 분리

안종관,안재우,이만승,김동진 한국자원공학회 2002 한국자원공학회지 Vol.39 No.5

Continuous separation experiments using mixer-settler have been performed to separate cobalt and nickel from hydrochloric acid solutions by Alamine336 dissolved in xylene. The composition of aqueous feed solution was 5.0g/l nickel and 0.7g/l cobalt and 5.0N hydrochloric acid. The mixer-settler consists of three stages extraction, two stages scrubbing, three stages stripping and two stages washing. In extraction, 99% of cobalt was extracted into the organic phase but the extraction percentage of nickel was negligible. Nickel in the organic phase was removed in two stages scrubbing by 6.0N hydrochloric acid solution. Over 92% of cobalt was stripped from the organic phase by 0.1N hydrochloric acid solution at the volume ratio of organic to aqueous of 2. After stripping, the organic phase was washed by 3.0N hydrochloric acid solution at the volume ratio of organic to aqueous of 2 and this washed organic solution could be reused in extracting metals. 추출제로 Alamine336을 사용하여 mixer-settler를 이용한 연속공정으로 코발트와 니켈 의 추출 분리거동을 조사하였다. Mixer-settler에 공급되는 수상의 니켈 및 코발트의 농도는 5.0g/l 및 0.7g/l 이며, 염소이온의 농도가 5.0N인 합성용액을 사용하였다. Mixer-settler는 3단의 추출공정(Extraction), 2단의 세 정공정(Scrubbing), 3단의 탈취공정(Stripping), 2단의 세척공정(Washing)으로 구성되었다. 추출반응시, 코발트는 약 99%가 유기상으로 추출되며 니켈의 경우에는 거의 추출되지 않았다. 유기상의 니켈은 6.0N 염산용액을 이 용하여 2단의 세정공정에 의해 제거할 수 있었다. 유기상중의 코발트는 유기상 대 수상의 비를 2:1로 조절하 고 0.1N 염산용액을 이용하여 3단의 탈취공정에서 92%를 회수할 수 있었다. 탈취공정을 행한 후, 유기상을 3.0N의 염산용액으로 세척하면 재사용이 가능하였다.

수산자원관리 정책방향

안종관 한국수산해양기술학회(구 한국어업기술학회) 2016 한국수산해양기술학회 학술발표대회 Vol.2016 No.10

의치상 직접 이장재의 표면 특성에 관한 비교 연구

안종관,이준규,정재헌,An Jong-Kwan,Lee Joon-Kyu,Chung Chae-Heon 대한치과보철학회 2001 대한치과보철학회지 Vol.39 No.1

The use of autopolymerizing-cured resin and light-cured resin for direct introral relining of complete and partial dentures has been popular. The purpose of this investigation was to determine the surface characteristics of autopolymerizing-cured reline resins(Tokuso rebase, Mild rebaron, Meta base) and light-cured reline resin(Mild rebaron LC). Acrylic resin slab specimens(1.0cm in diameter at the bottom, and 0.3cm high) were made against glass according to the instructions of the manufacturer following normal procedures for each of direct reline resins and examined the surface characteristics by use of surface profilometer and the other specimens which were made intraorally for each of direct reline resins were examined by use of scanning electron microscopy. The results were as follows : 1. Each surface roughness(Rz) of hard relin resins was $0.14{\pm}0.04{\mu}m$ in Tokuso rebase, $0.37{\pm}0.11{\mu}m$ in Mild Rebaron, $0.79{\pm}0.44{\mu}m$ in Mild Rebaron LC, $6.36{\pm}3.40{\mu}m$ in Meta base. There were significant differences between the surface roughness of Meta base and those of other reline resins(p<0.05) 2. The generation of porosity was the most in Tokuso Rebase and followed by Meta base, Mild Rebaron and Mild Rebaron LC in the order respectively. 3. Light-cured reline resin(Mild rebaron LC) was denser in surface than any other autopolymerizing-cured reline resins. Tokuso rebase and Mild rebaron was denser than Meta base. Conclusively, light-cured reline resin(Mild rebaron LC) had less porosity and better surface density than any other autopolymerizing-cured reline resins.

함구리 황산폐액으로부터 LIX84-Kerosene-Span80-H₂SO₄계 유화형 액막법에 의한 구리의 분리 농축

안종관,안재우,신선명,김동진 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.4

The separation and extraction of copper from waste water solutions by the liquid surfactant membrane process using LM84 as an extractant and Span 80 as a surfactant were investigated . In extraction, the extraction rate of copper was greatly accelerated by the presence of sodium acetate and with the increase of pH in the aqueous feed solution. The optimum concentrations of LIX84 and Span 80 in the membrane phase were 7-10 vol. % and 2.5-3vol. %, respectively. Experiments also showed that the concentration ratio of copper was greatly enhanced with the decrease of the ratio of V_(e) and V_(w) and with the decreasing of A/O ratio. After the extraction process, the concentration of copper in the raffinate solution reduced to 1-2 ppm, and the concentration of copper in the internal aqueous solution increased to 20 gll. (Received February 11, 2004)

염산용액에서 Alamine336에 의한 니켈과 코발트의 분리

安鍾寬,安在禹,李晩承 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.7

Solvent extraction experiments with Alamine336 from hydrochloric acid solutions containing cobalt and nickel have been performed to separate both metal ions. Cobalt was preferentially extracted from nickel by Alamine336 due to the difference betwen the complex formation constant of cobalt-chloro and nickel-chloro complex. The extraction percentage of cobalt and nickel were greatly affected by the concentration of chloride ion but were independent of solution pH when the chloride salt of Alamine336 was used as extractant. In the experimental ranges, the separation factor was increased with reaction temperature. The stripping percentage of cobalt decreased with the concentration of HCl in stripping solution.

내열합금 침출액으로부터 Alamine304-1을 이용한 금속이온의 용매추출 거동 및 레늄의 추출

안종관,정희경,이홍찬,김민석 한국열환경공학회 2016 열환경공학 Vol.13 No.1

Special Report - 스마트시티 글로벌 연동사례와 사물인터넷 표준 플랫폼

안종관,김재호,송재승,An, Jong-Gwan,Kim, Jae-Ho,Song, Jae-Seung 한국정보통신기술협회 2018 TTA저널 Vol.2018 No.-