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강희석,이한수,정흥석,안도희,손순환,정양근,송명재 ( Hee Suk Kang,Han Soo Lee,Hongsuk Chung,Do Hee Ahn,Soon Hwan Son,Yang Geun Chung,Myung Jae Song ) 한국공업화학회 1996 공업화학 Vol.7 No.4
중수형 발전소에서 삼중수소 제거 공정에 이용되는 소수성 고분자촉매의 담체인 스티렌-디비닐벤젠 공중합체의 제조 특성을 실험하였다. 스티렌-디비닐벤젠 고분자담체의 제조시 담체의 표면 특성에 대한 용매의 영향을 고찰하기 위하여 일정한 용매계에서 용매비를 변화시켜 solvating power 값을 구하였다. 거시기공 형태의 담체가 제조되기 위한 solvating power는 가교도가 20%일 때 3 이상, 가교도가 40%일 때는 1 이상의 값이 필요하였으며 약 40℃에서 2시간 이상 용액의 안정이 필요하였다. 또한 후처리 방법은 담체를 건조시키기 전에 용매를 제거하는 방법이 가장 우수한 기공 특성을 나타내었다. 담체의 입자 크기는 교반속도 및 계면활성제의 농도가 낮을수록 더 크게 생성됨을 알 수 있었다. This study represents the synthetic characteristics of styrene-DVB copolymer which is used as a catalyst support for the removal of tritium in CANDU. To evaluate the effect of solvent on the styrene-DVB polymeric support, the solvating power dependent on various kinds and composition of solvents was calculated. In order to synthesize the macroreticular type polymer bead, the following conditions are needed; solvating power should be higher than 1 for 20% of crosslinkage and higher than 3 for 40% of crosslinkage. Stabilization of organic monomers at about 40℃ for more than 2 hours is prerequisite. Removal of solvent prior to drying is preferred for the post-treatment of the bead. The polymer particle size was increased by lowering concentration of surfactant and stirring speed.
비활성 알루미나 고정상을 이용한 수소동위원소의 크로마토그래피 분리
김광락,이성호,강희석,정흥석,성기웅 ( Kwang Rag Kim,Sung Ho Lee,Hee Suk Kang,Hongsuk Chung,Ki Woung Sung ) 한국공업화학회 1998 공업화학 Vol.9 No.1
삼중수소를 함유하는 수소동위원소 시설의 운용이나 취급 또는 핵융합소재의 관리기술분야에서는 기체크로마토그래피 분리법이 중요한 분석 및 농축기술중의 하나로 활용되고 있다. 수소, 중수소 및 삼중수소의 수소동위원소 혼합기체시료를 상용 기체크로마토그래피를 사용하여 분리하였다. 기체시료는 특별히 제작된 진공-시료주입장치를 통해 액체질소온도의 분위기로 유지된 분리컬럼을 통과하는 비활성 캐리어 기체의 흐름에 주입하였다. 10% 함량의 염화망간으로 부분-비활성화한 산화알루미늄 고정상에서 수소동위원소들이 완전히 분리됨을 확인할 수 있었다. 그리고 이성질체피크의 억제와 분리 ·용리시간이 단축되어 실제 수소동위원소의 분리 및 농축기술에 유용하게 적용할 수 있는 비교적 우수한 분리조건을 얻었다. In fields of operating or handling a hydrogen isotope facility, and of the technology for nuclear fusion source management, gas chromatography has been used as one of the practical techniques for separation and enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of gas sample was injected by a specially designed vacuum sampler into the stream of inert carrier gas which went through the separation column under liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions were obtained without any appearance of nuclear spin isomers with shorter retention time, which would be available for the practical applications of the hydrogen isotope separation and enrichment.
이성호,김광락,안도희,백승우,강희석,유재형,정흥석 ( S . H . Lee,K . R . Kim,D . H . Ahn,S . W . Paek,H . S . Kang,J . H . Yoo,H . Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1997 No.0
N/A High-level wastes contain significant quantities of platinum group metals such as palladium, ruthenium, and rhodium. These metals are used for catalystic process, electronic and electrochemical industries, anti-corrosion alloys, dental applications etc. The demand of noble metals continues to grow in a steady manner. Many techniques for separation and recovery of the platinum group metals have been studied. In this paper, batch experiments were carried out to investigate ion exchange characteristics of platinum group metals by commercial anion exchange resins such as IRN 78 and Dowex 1x8. The effects of ionic group of resins, solution temperature, co-ions, and the concentration of nitric acid were investigated.
포스터 발표 - 무기재료분과 / 전기화학분과 / 촉매분과 : 비활성 알루미나 충전컬럼에서의 수소동위원소 분리특성
김광락,강희석,백승우,이성호,안도희,이한수,정흥석 ( Kwang Rag Kim,Hee Suk Kang,Seung Woo Paek,Sung Ho Lee,Do Hee Ahn,Han Soo Lee,Hong suk Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1990 No.3
N/A In the fields of operation and handling of the hydrogen isotope facility, and of management technology for the nuclear fusion source, gas chromatography has been used as one of the practical techniques for the separation and the enrichment of hydrogen isotopic gases including tritium. Chromatographic separation experiments of the hydrogen isotope mixture (hydrogen, deuterium and tritium) were carried out by use of a commercially available gas chromatograph. An aliquot of the gas sample was injected with a specially designed vacuum sampler into the stream of inert carrier gas which goes through the separation column at liquid nitrogen temperature. The complete separation of hydrogen isotopic molecules was observed with an alumina adsorbent partially deactivated by coating with 10% manganese chloride. In addition, fairly good separation conditions without appearance of the nuclear spin isomers in a shorter retention time, which would be useful for the practical applications of the hydrogen isotope separation and enrichment, were obtained.
포스터 발표 - 에너지환경분과 / 화학공정분과 : 이온교환수지를 이용한 백금족 금속의 이온교환 특성
이성호,김광락,안도희,백승우,강희석,유재형,정흥석 ( S . H . Lee,K . R . Kim,D . H . Ahn,S . W . Paek,H . S . Kang,J . H . Yoo,H . Chung ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1990 No.3
N/A High-level wastes contain significant quantities of platinum group metals such as palladium, ruthenium, and rhodium. These metals are used for catalystic process, electronic and electrochemical industries, anti-corrosion alloys, dental applications etc. The demand of noble metals continues to grow in a steady manner. Many techniques for separation and recovery of the platinum group metals have been studied. In this paper, batch experiments were carried out to investigate ion exchange characteristics of platinum group metals by commercial anion exchange resins such as IRN 78 and Dowex 1x8. The effects of ionic group of resins, solution temperature, co-ions, and the concentration of nitric acid were investigated.