最近,英国发明从废旧轮胎中提取炭黑的新方法。这种炭黑可作为印刷油墨着色特种炭黑的代用品,价格低廉。该方法是在隔绝空气条件下,于800℃高温热解废旧轮胎,得到炭黑和钢丝等混合物,磁选、筛选之后烘焙,制得半纯碳粉,再用盐酸和氢氧化钠分别洗涤半纯碳粉,即可得到黑色印刷油墨用炭黑。与炭黑传统的炉法生产过程相比,这种高温热解法生产过程过程不排放二氧 Recently, Britain invented a new method of extracting carbon black from discarded tires. This kind of carbon black can be used as printing ink coloring special carbon black substitute, low price. The method comprises the steps of pyrolyzing discarded tires at a high temperature of 800 DEG C under air-insulated condition to obtain a mixture of carbon black and steel wire, magnetic separation and sieving, and then semi-pure carbon powder is prepared, and then the semi-pure carbon powder is washed with hydrochloric acid and sodium hydroxide respectively Pure toner, you can get black printing ink with carbon black. Compared with the traditional furnace production process of carbon black, this high-temperature pyrolysis process does not emit dioxygen