Via multi-dimensional gas chromatography, configured with parallel dual-channel, double detectors, valves switching and back flushing, rapid analysis of the gas compositions consisting of C1-C5 hydrocarbons and perman...Via multi-dimensional gas chromatography, configured with parallel dual-channel, double detectors, valves switching and back flushing, rapid analysis of the gas compositions consisting of C1-C5 hydrocarbons and permanent gases, such as CO2, H2S, H2, and CO, for direct coal liquefaction has been realized. With four packed chromatographic columns, which are Hayesep-Q pre-column, Hayesep-Q column, molecular sieve 5A column and one PLOT A1203 S capillary column, the gas compositions for direct coal liquefaction are analyzed qualitatively and quantitatively by the external standard method. The determination method has such advantages as excellent separation, simple operation, rapid analysis and accurate results.展开更多
【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高...【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高分子量的阴离子、阳离子、非离子、有机絮凝剂及滤饼脱水助剂,形态有液态、粉末状和微珠状等。展开更多
文摘Via multi-dimensional gas chromatography, configured with parallel dual-channel, double detectors, valves switching and back flushing, rapid analysis of the gas compositions consisting of C1-C5 hydrocarbons and permanent gases, such as CO2, H2S, H2, and CO, for direct coal liquefaction has been realized. With four packed chromatographic columns, which are Hayesep-Q pre-column, Hayesep-Q column, molecular sieve 5A column and one PLOT A1203 S capillary column, the gas compositions for direct coal liquefaction are analyzed qualitatively and quantitatively by the external standard method. The determination method has such advantages as excellent separation, simple operation, rapid analysis and accurate results.
文摘【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高分子量的阴离子、阳离子、非离子、有机絮凝剂及滤饼脱水助剂,形态有液态、粉末状和微珠状等。
