名称：改质沥青
Name : modified pitch

理化性质
Physical and chemical properties

同中温沥青
Same　Soft Picth

生产工艺：
Production process

中温沥青经过在一定的压力和温度下，经过一定时间热处理获得。
It is obtained by distilling soft pitch in modified pitch column under certain pressure and temperature after certain time heating.

运输
Transportation

改质沥青经水冷却后而得固体沥青，卡车或火车散装运输，按交通部危险品运输办法办理。
By cooling modified pitch with water, solid pitch is obtained, which should be transported in bulk by trucks or by cargo train .It is in the category of dangerous product stipulated by the Ministry of Transportation.