The main function of white mineral oil is to synthesize detergent. At the same time, it is rich in petroleum protein and pesticide emulsifier. It can also be used to make laundry detergent, which can help bleach some parts and remove stains. However, white mineral oil cannot be inhaled into the lungs for a long time, as it will make people feel very uncomfortable and may cause dizziness and headaches. Mainly used in the manufacture of washing powder, synthetic detergent, synthetic petroleum protein, pesticide emulsifier, etc. Hydraulic system The refining method is to take the light lubricating oil fraction at 250-400°C from crude oil, and obtain it through processes such as acid and alkali refining, water washing, drying, white clay adsorption, and adding antioxidants. When using paraffin-based crude oil, dewaxing is also required. In order to lower the freezing point of insulating oil, an appropriate amount of pour point depressant can be added. By taking different fractions of crude oil and controlling the concentration, dosage, action time and other related processes of sulfuric acid during refining, transformer oil, capacitor oil, cable oil, switch oil, etc. with different uses can be obtained. Solvent refining or solvent refining combined with hydrogenation refining can also be used instead of acid-base refining. Mineral oil should be refined to an appropriate depth. Insufficient refining cannot remove harmful impurities in the oil; while over-refining will remove too much natural antioxidants and aromatic hydrocarbon components contained in the oil, reducing its stability and breathability, which is particularly effective for cable oil and capacitor oil. In order to improve the arc extinguishing ability of switch oil, the aromatic hydrocarbon content in the oil should be reduced as much as possible. [2] Types of white oil Mineral oil is called white mineral oil or white oil in some fields. Commonly used ones include industrial grade white oil, cosmetic grade white oil, medical grade white oil, food grade white oil, etc. Different types of white oil have different uses. Industrial-grade white oil is made from base oil produced by hydrocracking, and is obtained after deep dewaxing, chemical refining and other process treatments. It can be used in chemistry, textiles, chemical fibers, petrochemicals, electricity, agriculture, etc., and can be used in the production of PE, PS, PU, etc. Food-grade white oil is based on mineral oil and is obtained through deep chemical refining, edible alcohol extraction and other processes. It is suitable for lubrication of processing equipment in the food industry, such as grain and oil processing, fruit and vegetable processing, dairy product processing, bread cutting machines, etc. It is used for food glazing, anti-sticking, defoaming, planing, and sealing. It can be used as a release agent for macaroni, bread, biscuits, chocolate and other foods. It can extend the storage and shelf life of wine, vinegar, fruits, vegetables, and canned foods. Medical grade white oil is suitable for the pharmaceutical industry. It can be used as an oral agent for producing mild laxatives and a defoaming agent for the production of penicillin. |
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