其墨取店山之松烟,代郡之鹿胶,十年以上强如石者为之.
——晋·卫夫人《笔阵图》
The ink is made from pine carbon of Dianshan and deer glue of Daijun;and it takes 10 years to forge a high quality ink.
——Wei Furen(Jin ...其墨取店山之松烟,代郡之鹿胶,十年以上强如石者为之.
——晋·卫夫人《笔阵图》
The ink is made from pine carbon of Dianshan and deer glue of Daijun;and it takes 10 years to forge a high quality ink.
——Wei Furen(Jin Dynasty.Bi Zhen Tu)
迩来墨工以水槽盛水,中列粗碗,燃以桐油,上复覆以一碗,专人扫煤,和以牛胶,揉成之.其法最快便,谓之油烟.
——宋·赵彦卫《云麓漫钞》
The workers use a tank to store the water;put a bowl in the tank;cover the bowl with another bowl:and boil tung oil under the tank.Then workers sweep the carbon into the bowl and mix it with cow glue.Eventually,the solid ink is made which is called lampblack ink.
——Zhao Yanwei(Song Dynasty.Yun Lu Man Chao)展开更多
Synthetic dyes are commonly used for graphite depression in poly-metallic flotation circuits; however,these dyes can be very expensive. The aim of this study is to evaluate performance of certain low-cost alternative ...Synthetic dyes are commonly used for graphite depression in poly-metallic flotation circuits; however,these dyes can be very expensive. The aim of this study is to evaluate performance of certain low-cost alternative depressants for a complex lead-zinc(Pb-Zn) ore rich in graphite(Gr-C) on a conventional mini pilot-scale flotation circuit. The reagents used were commercial and industrial grade starch; agro-based waste-sugarcane bagasse and charred(burnt) bagasse powder. The primary evaluation criteria were quality(grades) of lead and zinc concentrates, their recoveries(%), and graphite rejection(%) in the tails.Benchmark tests using nigrosine as graphite depressant showed 94.3% rejection of Gr-C. The results with commercial starch were found as effective with 93.8% graphite rejection. Furthermore, bagasse powder showed potential in improving product quality(36.4% and 65.6% Pb grade and recovery) with an intermediate effectiveness in graphite rejection(85.6%). The order of effectiveness in Gr-C rejection follows nigrosine % commercial starch > bagasse > industrial starch > charred bagasse. In addition, the effect these depressants on silver(byproduct) grade and recovery was also investigated.展开更多
文摘其墨取店山之松烟,代郡之鹿胶,十年以上强如石者为之.
——晋·卫夫人《笔阵图》
The ink is made from pine carbon of Dianshan and deer glue of Daijun;and it takes 10 years to forge a high quality ink.
——Wei Furen(Jin Dynasty.Bi Zhen Tu)
迩来墨工以水槽盛水,中列粗碗,燃以桐油,上复覆以一碗,专人扫煤,和以牛胶,揉成之.其法最快便,谓之油烟.
——宋·赵彦卫《云麓漫钞》
The workers use a tank to store the water;put a bowl in the tank;cover the bowl with another bowl:and boil tung oil under the tank.Then workers sweep the carbon into the bowl and mix it with cow glue.Eventually,the solid ink is made which is called lampblack ink.
——Zhao Yanwei(Song Dynasty.Yun Lu Man Chao)
基金The author is grateful to the management and staff of Center Research Development laboratory(HZL,Debari),India for their support with this research and permitting to publish the work.
文摘Synthetic dyes are commonly used for graphite depression in poly-metallic flotation circuits; however,these dyes can be very expensive. The aim of this study is to evaluate performance of certain low-cost alternative depressants for a complex lead-zinc(Pb-Zn) ore rich in graphite(Gr-C) on a conventional mini pilot-scale flotation circuit. The reagents used were commercial and industrial grade starch; agro-based waste-sugarcane bagasse and charred(burnt) bagasse powder. The primary evaluation criteria were quality(grades) of lead and zinc concentrates, their recoveries(%), and graphite rejection(%) in the tails.Benchmark tests using nigrosine as graphite depressant showed 94.3% rejection of Gr-C. The results with commercial starch were found as effective with 93.8% graphite rejection. Furthermore, bagasse powder showed potential in improving product quality(36.4% and 65.6% Pb grade and recovery) with an intermediate effectiveness in graphite rejection(85.6%). The order of effectiveness in Gr-C rejection follows nigrosine % commercial starch > bagasse > industrial starch > charred bagasse. In addition, the effect these depressants on silver(byproduct) grade and recovery was also investigated.
