A liquid-liquid extractor usually consists of an extraction column, a collection bottle, a sample container, etc. It works by separating two liquids of different densities using the packing material in the extraction column. During the extraction process, the sample liquid passes through the extraction column, in which the extracted material is adsorbed onto the packing material, and then rinsed with another extractant to desorb the target substance from the packing material, thereby achieving the separation and purification of the target substance.
As an advanced separation and purification equipment, liquid-liquid extractor plays an important role in the fields of chemistry, pharmaceutical, and environment. It realizes the separation and purification of substances through the principle of liquid-liquid interaction, and provides an efficient and reliable solution for scientific research and industrial production.
The liquid-liquid extractor uses the difference in the solubility of different components in the liquid system to achieve the selective separation of the target components based on the difference in the partition coefficient of the substance between the two phases. Commonly used liquid-liquid phase combinations include organic solvent-water, organic solvent-organic solvent, etc. By adjusting the solvent system, temperature, pH value and other parameters, the distribution of target components in different phases is controlled to achieve separation and purification.
The liquid-liquid extractor makes full use of the affinity and oscibility differences between the liquid phases to achieve efficient separation and purification. For complex mixtures, the right solvent combination and operating conditions can be selected to efficiently separate the target components and improve product purity and yield. It is suitable for separation and purification needs in a variety of fields, including chemical synthesis, pharmaceutical, food, environmental protection, etc. Whether it's separating organic matter, purifying natural products, or removing harmful substances from wastewater, liquid-liquid extractors are adaptable and operable.
Modern liquid-liquid extractor is equipped with an advanced automatic control system, which can realize accurate control and real-time monitoring of parameters such as temperature, pH value, solvent flow rate, etc. Automated operations increase productivity, reduce human error, and ensure reproducibility and reliability of experiments. It can be applied to the enrichment and separation of organic matter in environmental samples. For example, in water quality monitoring, a liquid-liquid extractor can be used to enrich organic contaminants in water samples into organic solvents for further analysis and detection.
In the fields of scientific research, environmental monitoring, food safety, etc., the processing and extraction process of samples is required to be efficient and accurate. In order to meet this demand, the automatic liquid-liquid extractor came into being. A fully automatic liquid-liquid extractor is a device that uses advanced technology and methods for sample processing and extraction. It enables the fast and efficient extraction of target substances from the sample and automates the process.
The automatic liquid-liquid extractor is a liquid-liquid extraction device that can be automatically extracted, automatically degassed, automatically cleaned and automatically discharged in the true sense. The instrument consists of an extraction bottle, a gas-liquid pump and a control part, and adopts a semi-closed air flow for internal circulation**. The principle is to use air pressure to fully combine the water sample and the extractant and collide violently to achieve the purpose of extraction. It replaces manual shaking, reduces the labor intensity of experimenters, improves the extraction efficiency, and makes the analysis results stable and more reliable.
Application of extraction in industrial production.
1. The relative volatility of each component in the solution is very close or can form a constant boiling substance, and the separation by general distillation method requires a lot of theoretical plates and a large reflux ratio, and the operation cost is high, and the equipment is too large or can not be separated at all.
The heat sensitivity of the 2 components is large, and the use of distillation method is easy to lead to chemical changes such as thermal decomposition and polymerization.
3 The boiling point of the solution is high and it needs to be distilled under high vacuum.
4. The concentration of solutes in the solution is very low, and the energy consumption by distillation method is too large, which is economically unreasonable.
The application of liquid-liquid extraction technology is not limited to the above aspects, but has a wide range of prospects. The two separation methods, extraction and distillation, complement each other. With the right choice of distillation or extraction, it has been proven that almost all liquid mixtures can be completely separated between components efficiently and economically.