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Coal tar is one of the products of crude gas generated by coal pyrolysis in coking industry, and its output accounts for about 3% to 4% of the furnace coal. Its composition is extremely complex, and in most cases it is specially separated and purified by coal tar industry. At room temperature and atmospheric pressure, the product is black viscous liquid, and each fraction can be further processed to separate a variety of products, such as mothballs, asphalt, plastics, pesticides and so on. ...

Should be stored in a cool, dry, well-ventilated warehouse, strictly closed, doors and Windows switch flexible, easy to open and close ventilation, with light and radiation protection measures, the warehouse should be kept below 30℃, relative humidity below 80%, the lighting and exhaust equipment should use explosion-proof and closed electrical appliances, strictly prohibited with open flame lighting, It can be stored with other nitro, dinitro and other flammable solid compounds in the same warehouse, and must not be mixed with oxidizing agents, acids, metal powders, metal salts and other items with different properties. ...

Asphalt is a black brown complex mixture composed of hydrocarbons of different molecular weight and their non-metallic derivatives, is a kind of high viscosity organic liquid, mostly in liquid or semi-solid petroleum form, the surface is black, soluble in carbon disulfide, carbon tetrachloride. Asphalt is a kind of waterproof, moisture-proof and anticorrosive organic cementing material. Asphalt can be mainly divided into coal tar pitch, petroleum asphalt and natural asphalt three kinds: coal tar pitch is a by-product of coking. Petroleum bitumen is the residue after distillation of crude oil. Natural asphalt is stored underground, and some form mineral layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. ...

In the process of coal tar processing, the residue after distillation to remove the liquid fraction is called coal pitch. Coal pitch is the main component of coal tar, accounting for about 50% to 60% of the total. It is generally believed that its main components are polycyclic, dense ring aromatic hydrocarbons and their derivatives. The current methods are mainly differentiated according to the softening temperature displayed. Generally at room temperature, coal bitumen is black brittle lump and shiny; Smelly, flammable when molten, and toxic. Coal asphalt has low temperature stability, good adhesion to mineral aggregates, poor climate stability (large changes in cold and heat), and contains more harmful components to human body, especially carcinogenic polycyclic aromatic hydrocarbons such as benzopyrene, which is one of the main sources of such pollutants in the environment [1]. ...

Non-curable rubber asphalt waterproof coating (hereinafter referred to as non-curable paint) is a waterproof coating made of rubber, asphalt and softening oil as the main components, adding temperature control agent and filler mixture to maintain a sticky paste in the service life. The coating can seal the cracks and pores of the base, and can adapt to the complex construction surface. It does not cure for a long time after contact with the air, always maintains the characteristics of viscous gum, strong self-healing ability, sticky when touched, difficult to peel off, and still has good bonding properties at -20℃. It can solve the problems of waterproofing layer fracture, flexural fatigue or premature aging in high stress state caused by base cracking stress transfer to waterproofing layer. At the same time, the viscosity of the creep material can seal the capillary pores and cracks of the base well, solve the water channelling problem of the waterproof layer, and greatly improve the waterproof reliability. It can also solve the compatibility problem when the existing waterproof coil and waterproof coating are used together. ...

 Distillation range 80~120 solvent oil manufacturers, solvent oil in fact, in addition to ethane a few pure hydrocarbon compounds solvent oil, solvent oil is a mixture of various structural hydrocarbons. In terms of chemical composition, it can be divided into alkanes, cycloalkanes and aromatic hydrocarbons. Usually referred to as 6#, 120#, 200# solvent oil, is alkanes. By use Usually, it can be divided into extraction solvent oil mainly used in extracting animal and plant oils such as soybean oil, rye seed oil, peanut oil and bone oil, rubber solvent oil for rubber, shoe glue, tire and other fields, paint solvent oil for paint, coating industry, and so on. In addition, there are washing solvent oil, ink solvent oil and so on. According to the national standard GB 1922-2006, solvent oil is divided according to its 98% distillation temperature or dry point, the common brands are: 70# scented solvent oil, 90# petroleum ether, 120# rubber solvent oil, 190# detergent oil, 200# paint solvent oil, 260# special kerosene type solvent. In addition, there are 6# extractive solvent oil, aviation washing gasoline, 310# color ink solvent oil. In fact, the market sales are far more than these, manufacturers can produce various specifications ...