| 1978-12 | A study on beneficiation of low-grade kaolin. | 오종기; 황기엽; 이동휘 |
| 1973-09 | A study on the recovery of high grade fluorite concentrate from low grade ores (report I). | 이동휘; 황기엽; 전용원 |
| 1973-12 | A study on the recovery of high grade fluorite concentrate from low grade ores (report II). | 이동휘; 황기엽; 전용원 |
| 1980-06 | Dewatering of coal concentrate and slimy wastes. | 이동휘; 황기엽 |
| 1966-01 | Electrochemical behavior and flotation characteristics of almandite in an aqueous solution | 이동휘; 최형섭; 황기엽 |
| 1973-06 | Mineralogical study and flotation of cobalt ore from Haman mine. | 이동휘; 황기엽 |
| 1982-12 | Preparation characteristics of anthracite from Jang-sung coal mine. | 오종기; 황기엽; 이동휘 |
| 1980-06 | Preparation characteristics of high-ash coals from Samchok coal field. | 오종기; 황기엽; 이동휘 |
| 1981-12 | Removal of iron impurities from domestic pink : colored kaolin(I). | 오종기; 황기엽 |
| 1982-06 | Removal of iron impurities from domestic pink-colored kaolin : Zn plus SO//2 leaching. | 오종기; 황기엽; 이동휘 |
| 1978-01 | Review on the utilization of domestic high-ash coal. | 오종기; 황기엽 |
| 1979-12 | Selective flotation of scheelite from the sangdong slimy tailings. | 오종기; 황기엽; 이동휘 |
| 1974-06 | The dewatering of fine coals in liquid suspension by agglomeration. | 이동휘; 황기엽 |
