The water bath constant temperature oscillator provides a stable and reliable solution for solvent extraction through the synergistic effect of precise temperature control and efficient oscillation, especially in scenarios such as phenol containing wastewater treatment and environmental pollutant detection, demonstrating significant advantages.
1、 Adapt core functions to extraction requirements
Temperature control accuracy: PID algorithm and high-sensitivity sensor are used to achieve temperature control fluctuation of ± 0.3 ℃, meeting the temperature sensitivity requirements of extraction reaction. For example, in the treatment of phenol containing wastewater in refineries, the mixed system of extractant tributyl phosphate and diesel needs to be oscillated at a constant temperature of 25 ℃ to ensure that phenolic substances are fully transferred to the organic phase, and the extraction rate reaches 92.6%.
Optimization of oscillation mode: The sample container is driven by a variable frequency motor to rotate 360 °, simulating the intense collision effect of manual hand cranking, allowing the extractant to quickly mix with the water sample. In soil heavy metal extraction, 300W ultrasonic assisted oscillation for 10 minutes can increase the extraction efficiency of heavy metals such as cadmium and lead to over 85%, which is 50% shorter than traditional methods.
2、 Typical application scenarios and parameter optimization
Industrial wastewater treatment: For high concentration phenol containing wastewater, the N-503 diesel extraction system is used. Under the conditions of pH=3-4, extraction ratio 1:2, and oscillation temperature of 25 ℃, the extraction rate reaches 95.8%. The device supports batch processing of 250mL iodine volumetric flasks, and can extract 12 samples simultaneously at a time, increasing efficiency by three times.
Pre treatment for environmental monitoring: The extraction of polycyclic aromatic hydrocarbons in water requires oscillation at 35 ℃ and 150r/min for 30 minutes. The equipment stabilizes the extraction efficiency at 92.3% through constant temperature control and uniform oscillation, with a relative standard deviation of<5%, meeting the requirements of HJ637-2012 standard.
3、 Key technical support
Anti emulsification design: By controlling the oscillation intensity (adjustable from 0-300rpm) and timing function (1s-99h), excessive emulsification at the two-phase interface is avoided. For example, in a diesel water system, using an oscillation frequency of 180rpm can quickly separate the oil-water phase within 5 minutes, increasing the clarity of the separation by 40%.
Safety protection mechanism: Built in functions such as over temperature alarm, water shortage protection, overload shutdown, etc., ensure the safety and controllability of the extraction process. In drug synthesis experiments in the pharmaceutical industry, the equipment can operate continuously for 72 hours to ensure the reliability of experimental data.
4、 Economy and scalability
Energy saving and consumption reducing: standby power consumption is less than 10W, which is 60% more energy-efficient than traditional water bath pots; Stainless steel material has a lifespan of up to 10 years, reducing the long-term operating costs of the laboratory.
Modular Expansion: Supports accessories such as separation funnel racks and solid waste toxicity leaching adapters, which can be extended to extract complex substrates such as soil and solid waste, achieving "one machine for multiple uses".
This device is designed with a three in one approach of "precise temperature control+efficient oscillation+intelligent protection", becoming a key tool in the field of solvent extraction, providing standardized and reproducible solutions for industrial wastewater treatment, environmental monitoring, drug research and development, and other scenarios.