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박홍수,박석환,Park, Hong Soo,Park, Suk Whan 대한자원환경지질학회 1989 자원환경지질 Vol.22 No.2
In order to make economic and geological evaluation of coal in Korea, proximate and ultimate analyses were carried out as well as coal petrological studies such as maceral analyses, vitrinite reflectance and sporinite fluorescence measurement. The coeffcient of correlation between each factor of both conventional utilization and coal petrological parameters were studied as in Table 5 and 6. Their conclusions were as follow: (1) for anthracite, the good parameters of coal rank are mean vitrinite reflectance, carbon content, hydrogen content and H/C atomic ratio: (2) for brown coal and sub-bituminous coal, the good parameters of coal rank are carbon content, calorific value, moisture content, hydrogen content, oxygen content and O/C atomic ratio as well as vitrinite reflectance and sporinite fluorescence. An attempt is made to infer the coalforming environment by utilization of coal petrological analyses and to make comparison of coal analyses with proximate and ultimate analyses throughout the island arc region including Japan, Philippine and Indonesia and continental region including USA, Canada and Australia. As a result, meceral composition of Paleozoic and Mesozoic anthracite are similar to that of the Paleozoic continental coals, which were formed under dry conditions or low water table, but the coalification degree suddenly increased during Daebo orogeny (middle Jurassic to lower Cretaceous). The Tertiary coal resembles those of Tertiary island arc region coal characterized by higher calorific value, volatile matter content and H/C atomic ratio and by the formation of coal under wet conditions or higher water table.
폴리에톡시화 제4급 암모늄염에 의한 PET섬유의 감량가공에 관한 연구
박홍수 明知大學校 産業技術硏究所 1992 産業技術硏究所論文集 Vol.11 No.-
Polyethoxylated (2, 4, 6, 8, 10) octadecylbenzylammonium chlorides, polyethoxylated (2) octadecylbenzylammonium bromide, polyethoxylated (2) octadecylmethylammonium methyl sulfate, and polyethoxylated(2) octadecylethylammonium ethyl sulfate were synthesized for the use of the accelerating weight loss agent. These synthesized compounds were used for r weight loss treatment of hydroxide. From the treatments, it was found that the less mols of EO adduct existed in polyeth- oxylated octadecylbenzylammonium chlorides, the better effect of weight loss was, moreover, although same EO adduct, according to the kind of quaternary ammonium salt used there existed a large differences in the ratio of weight loss. The proper concentration of accelerating weight loss agent was 6∼8 g/1, the proper time of treatment was 60-90 minutes, the proper treating bath ratio was 1 : 40 - 1 : 50. It is proved that polyethoxylated(2) octadecylbenzylammonium chloride and polyethoxylated (2) octadecylbenzylammonium bromide are good accelerating weight loss agent.