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Paraffin Wax

Issuing time:2020-08-18 08:43


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It is also called crystalline wax. The hydrocarbon mixture with carbon atom number of 18-30 is mainly composed of straight chain alkanes (about 80% - 95%), and a small amount of alkanes with individual branched chains and monocyclic alkanes with long side chains (the total content of both is less than 20%). Paraffin wax is a kind of flake or needle shaped crystal which is prepared by solvent refining, solvent dewaxing, wax freezing crystallization and pressing dewaxing from the lubricating oil fraction obtained from crude oil distillation, and then deoiling and supplementary refining. According to the degree of refining, it can be divided into three types: fully refined paraffin wax, semi refined paraffin wax and crude paraffin wax.


According to the melting point, each type of wax is generally divided into different varieties, such as 52, 54, 56, 58 and so on. Crude paraffin has high oil content and is mainly used to make matches, fiberboard, awning canvas, etc. Fully refined paraffin and semi refined paraffin wax are widely used. They are mainly used as ingredients and packaging materials for food, oral medicine and certain commodities (such as wax paper, crayons, candles, carbon paper), coating materials for baking containers, preservation of fruits, insulation of electrical components, improvement of aging resistance and flexibility of rubber. It can also be used for oxidation to produce synthetic fatty acids.


Paraffin is a kind of hydrocarbon mixture extracted from some distillates of petroleum, shale oil or other asphalt mineral oil. Its main component is solid alkane, odorless and tasteless, and it is a white or light yellow translucent solid. Paraffin is amorphous, but has obvious crystal structure. There are also artificial paraffin.


Paraffin is a kind of petroleum processing products, a kind of mineral wax, and also a kind of petroleum wax. It is a kind of flake or needle shaped crystal obtained by solvent refining, solvent dewaxing, wax freezing crystallization and pressing dewaxing from lubricating oil fraction obtained from crude oil distillation, and then deoiling and refining by solvent. It is used to make high-grade fatty acids, higher alcohols, matches, candles, waterproof agents, ointment, electrical insulation materials, etc.


Paraffin wax can be divided into food grade (food grade and packaging grade, the former is superior) and industrial grade. Food grade is nontoxic and industrial grade is inedible.


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