Usage and precautions of demulsifiers

Demulsifier is a chemical reagent used for demulsifying oil-water separation, widely used in fields such as oil extraction, wastewater treatment, and chemical production. This article will introduce the usage methods and precautions of demulsifiers.

Instructions for using demulsifiers:

1. Choose the appropriate demulsifier: Select the appropriate demulsifier based on the characteristics and target of the liquid that needs to be demulsified. Demulsifiers are usually divided into organic and inorganic based on their chemical composition. When selecting them, factors such as their demulsification effect and environmental friendliness should be considered.

2. Add an appropriate amount of demulsifier: Based on the liquid volume and target requirements, master the appropriate amount of demulsifier to be added. In general, the dosage of demulsifiers is 0.1-0.2% of the total liquid mass, but the specific dosage needs to be adjusted according to the actual situation.

3. Adding demulsifier: Evenly add the demulsifier to the liquid to be demulsified and stir thoroughly to ensure that the demulsifier can fully come into contact with the liquid to be demulsified. The stirring time and speed should be determined according to the specific situation, generally not less than 10 minutes.

4. Waiting for the demulsification process: After adding the demulsifier, sufficient time needs to be given for it to exert its demulsification effect. During this process, appropriate stirring and vibration can be carried out in a timely manner to accelerate the demulsification effect. The specific time depends on the nature of the liquid to be demulsified and the characteristics of the demulsifier, usually several minutes to several hours.

5. Separation of liquids: After the demulsifier has exerted its demulsification effect, the demulsified liquid is separated into oil and water phases through physical separation methods such as precipitation, filtration, centrifugation, etc. The specific separation process depends on the characteristics of the liquid to be demulsified and the selection of demulsifier.

Precautions for demulsifiers:

1. Pay attention to safety: When using demulsifiers, pay attention to personal protective measures. Avoid contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water and seek medical help. At the same time, demulsifiers have characteristics such as flammability and explosiveness, and open flames such as fireworks should be avoided during use.

2. Follow operating procedures: When using demulsifiers, strictly follow the product manual and operating procedures, and do not change the usage method, dosage, etc. arbitrarily to avoid affecting the demulsification effect or producing other adverse effects.

3. Pay attention to mixture reaction: When using demulsifiers in combination with other agents or substances, pay attention to their compatibility. Avoid unpredictable reactions, such as the generation of violent gases, heat, etc. In practical applications, small tests should be conducted first to ensure the safety and stability of the mixture.

4. Storage conditions: During the storage process of demulsifiers, attention should be paid to sealing, avoiding moisture, sun exposure, etc., to avoid damaging their performance. At the same time, keep away from sources of fire and heat to ensure safety.

5. Environmental protection: When using demulsifiers, attention should be paid to complying with environmental protection requirements. Unused solvents and waste liquids should be properly disposed of and should not be dumped into the environment to avoid pollution.