Production method of low-alkali-value sulfonate clearing agent

Abstract

The invention relates to a production method of a low-alkali-value sulfonate clearing agent. The production method comprises the steps: mixing uniformly 100 parts by weight of sulfonic acid containing 40-60 wt% of a dilute oil, 5 to 10 parts by weight of a metal oxide or 20 to 50 parts by weight of a metal hydroxide and water, carrying out a metallization reaction in the temperature range of the room temperature to 100 DEG C, then carrying out flash evaporation drying, carrying out slag removal and refining, and thus obtaining the low-alkali-value sulfonate clearing agent having transparent appearance and the oily total base value of less than 50 mgKOH / g. The method has simple technological process, not only has no need of a solvent recovery technological step, but also enables the synthetic yield to reach 90% (m / m) or more, enables the single-kettle utilization rate to be up to 90% (t / m<3>) or more, and is an environmental-protection production method for high-efficiency preparation of the low-alkali-value sulfonate clearing agent.

Description

technical field

[0001] The invention relates to a production method of a sulfonate detergent, in particular to an environment-friendly production method for preparing a low alkali value sulfonate detergent with high efficiency, and belongs to the field of oil additives. Background technique

[0002] Low base value sulfonate has excellent cleaning and anti-rust functions on the surface of the engine, and can be further synthesized into medium base value, high base value and even super high base value sulfonate detergents. It is a series of sulfonate detergents One of the products.

[0003] The effective components of low base value sulfonate detergents are generally composed of alkali and normal salt of sulfonic acid adsorbed or complexed on the surface of the alkali. The alkaline components generally refer to metal oxides or hydroxides. The so-called "low base value" refers to the determination of the total base value of the product according to the SH / T 0251 or ASTM D2896...

Examples

Embodiment 1

[0035] At room temperature, add 170g of neutral oil, 24.5g of water, 28g of slaked lime (industrial product, purity 95%), 230g of heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 90.5mgKOH / g), stir evenly, and the material temperature is 61°C. Heating with an electric heating mantle, after 1 hour and 45 minutes, the temperature of the material was raised to 98° C., stirred at constant temperature for 20 minutes, and the metallization reaction was completed. Then, continue to use the electric heating mantle to heat and evaporate the water. When the temperature of the material rises to 118°C, pass the dry air through the gas distribution pipe at a flow rate of 200ml / min, rise to about 150°C, and dry at a constant temperature for half an hour, then stop the flash evaporation dry. The measured solid content of the crude product was 1.2% (m / m). Finally, 20g of diatomite filter aid (Jilin Changbai) was added to the material, mixed evenly, a...

Embodiment 2

[0039] At room temperature, add 375g of neutral oil, 49.0g of water, 57g of slaked lime (industrial product, purity 95%), 425g of heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 121.4mgKOH / g), stir evenly, and the material temperature is 60°C. Heating with an electric heating mantle, after 2 hours and 15 minutes, the temperature of the material was raised to 98° C., and the metallization reaction was completed. Then, continue to use the electric heating mantle to heat and evaporate the water. When the temperature of the material rises to 115°C, the dry air is passed through the gas distribution pipe at a flow rate of 300ml / min, and the temperature rises to about 150°C. Dry at a constant temperature for half an hour and stop the flash evaporation dry. The solid content of the crude product was measured to be 2.1% (m / m). Finally, 30g of diatomite filter aid (Jilin Changbai) was added to the material, mixed evenly, and filtered to obtai...

Embodiment 3

[0043] At normal temperature, add 26909Kg neutral oil, 2840Kg water, 3558Kg slaked lime (industrial product, purity 95%), 15791Kg heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 138.8 mgKOH / g), mix the materials in the kettle evenly, and the display value of the kettle temperature is 60°C. Use the heating system of the reactor to raise the temperature of the materials in the kettle. After 7 hours, the temperature rises to 97° C., and the metallization reaction is completed. Then, heat up flash evaporation, meanwhile, pass into dry air with 100Kg / h flow rate by the gas distribution pipe at the bottom of the reaction still, take a sample after 2 hours, analyze the moisture value in the material in the kettle to be 0.12%, stop passing dry air, and The solid content of the crude product was measured to be 2.8% (m / m). Finally, add 2000Kg of diatomite filter aid (Jilin Changbai) to the material containing impurities such as solids, mix wel...

technical field

[0001] The invention relates to a production method of a sulfonate detergent, in particular to an environment-friendly production method for preparing a low alkali value sulfonate detergent with high efficiency, and belongs to the field of oil additives. Background technique

[0002] Low base value sulfonate has excellent cleaning and anti-rust functions on the surface of the engine, and can be further synthesized into medium base value, high base value and even super high base value sulfonate detergents. It is a series of sulfonate detergents One of the products.

[0003] The effective components of low base value sulfonate detergents are generally composed of alkali and normal salt of sulfonic acid adsorbed or complexed on the surface of the alkali. The alkaline components generally refer to metal oxides or hydroxides. The so-called "low base value" refers to the determination of the total base value of the product according to the SH / T 0251 or ASTM D2896...

Examples

Embodiment 1

[0035] At room temperature, add 170g of neutral oil, 24.5g of water, 28g of slaked lime (industrial product, purity 95%), 230g of heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 90.5mgKOH / g), stir evenly, and the material temperature is 61°C. Heating with an electric heating mantle, after 1 hour and 45 minutes, the temperature of the material was raised to 98° C., stirred at constant temperature for 20 minutes, and the metallization reaction was completed. Then, continue to use the electric heating mantle to heat and evaporate the water. When the temperature of the material rises to 118°C, pass the dry air through the gas distribution pipe at a flow rate of 200ml / min, rise to about 150°C, and dry at a constant temperature for half an hour, then stop the flash evaporation dry. The measured solid content of the crude product was 1.2% (m / m). Finally, 20g of diatomite filter aid (Jilin Changbai) was added to the material, mixed evenly, a...

Embodiment 2

[0039] At room temperature, add 375g of neutral oil, 49.0g of water, 57g of slaked lime (industrial product, purity 95%), 425g of heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 121.4mgKOH / g), stir evenly, and the material temperature is 60°C. Heating with an electric heating mantle, after 2 hours and 15 minutes, the temperature of the material was raised to 98° C., and the metallization reaction was completed. Then, continue to use the electric heating mantle to heat and evaporate the water. When the temperature of the material rises to 115°C, the dry air is passed through the gas distribution pipe at a flow rate of 300ml / min, and the temperature rises to about 150°C. Dry at a constant temperature for half an hour and stop the flash evaporation dry. The solid content of the crude product was measured to be 2.1% (m / m). Finally, 30g of diatomite filter aid (Jilin Changbai) was added to the material, mixed evenly, and filtered to obtai...

Embodiment 3

[0043] At normal temperature, add 26909Kg neutral oil, 2840Kg water, 3558Kg slaked lime (industrial product, purity 95%), 15791Kg heavy alkylbenzene sulfonic acid (industrial product of Jinzhou Company, direct acid value 138.8 mgKOH / g), mix the materials in the kettle evenly, and the display value of the kettle temperature is 60°C. Use the heating system of the reactor to raise the temperature of the materials in the kettle. After 7 hours, the temperature rises to 97° C., and the metallization reaction is completed. Then, heat up flash evaporation, meanwhile, pass into dry air with 100Kg / h flow rate by the gas distribution pipe at the bottom of the reaction still, take a sample after 2 hours, analyze the moisture value in the material in the kettle to be 0.12%, stop passing dry air, and The solid content of the crude product was measured to be 2.8% (m / m). Finally, add 2000Kg of diatomite filter aid (Jilin Changbai) to the material containing impurities such as solids, mix wel...

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