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["海友の皆様に焦化に関する相談をお願若您",,"

2020-03-21View Original

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Reply #22020-03-21
,"哪位能给解释一下:焦化厂低温沥青、中温沥青、高温沥青是怎么生产的?煤焦油又是哪里的馏分?谢谢!"
Reply #32020-03-22
"煤焦油蒸馏后的黑色半固态或固态残留物,可分为低温沥青、中温沥青和高温沥青。煤沥青属于由煤干馏得到的煤焦油再经蒸馏加工制成的沥青。。煤沥青在常温下是体积密度为 1.25~ 1.35g/cm3 的黑色固体,加热到一定温度即呈软化状态: (1)低温沥青(软沥青),环球法软化点为 35~75℃: (中)中温沥青,环球法软化点为 75~ 95℃;; (高)高温沥青 (硬沥青),环球法软化点为 95~ 11

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