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[Chemical Knowledge]：Production and manufacturing method and process flow of national standard solvent oil

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The manufacturing method
of national standard solvent oil
1. Introduction

With the rapid development of the chemical industry, solvent oil is used more and more widely in industrial production as an important raw material for chemical production. In order to meet the production demand and improve the quality of solvent oil, it is of great significance to study the manufacturing method of national standard solvent oil. This paper will introduce the manufacturing method of national standard solvent oil in detail, including raw material selection, production process, product quality control and so on.

2. Raw Material Selection

1. Base Oil: Selecting high-quality base oil is the key to manufacturing national standard solvent oil. Generally used paraffin base oil, with high aromatic hydrocarbon content and good thermal stability.
2. Additives: According to the use of solvent oil requirements, select the appropriate additives, such as antioxidants, corrosion inhibitors, etc., in order to improve the performance of solvent oil.

3. production process

1. distillation: base oil distillation, separation of different fractions of solvent oil. In the process of distillation, the parameters such as temperature, pressure and reflux ratio should be controlled to ensure the quality of the products.
2. Refining: Refining the solvent oil obtained by distillation to remove impurities and moisture and improve the purity of the product.
3. Reconciliation: the solvent oil of different fractions is reconciled according to a certain proportion to obtain the solvent oil that meets the requirements of the national standard.
4. Filtration: filter the solvent oil after blending to remove the mechanical impurities and particles and ensure the clarity of the product.

4. product quality control

1. Physical and chemical index control: According to the national standard requirements, the density, viscosity, flash point, acid value and other physical and chemical indicators of solvent oil are strictly controlled to ensure that the product quality meets the standards.
2. Safety control: evaluate the toxicity and flammability of solvent oil to ensure the safety performance of the product.
3. Stability control: The storage stability of solvent oil is monitored to prevent the quality of the product from changing during storage.

5. conclusion The manufacturing method of

national standard solvent oil involves the selection of raw materials, production process, product quality control and other aspects, and it is necessary to strictly control each link to ensure that the product quality meets the standard requirements. Through the manufacturing method introduced in this paper, it can provide high-quality national standard solvent oil for the chemical production field, meet the needs of industrial production, and promote the development of the chemical industry.

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