History Of Rotary Evaporator
Dec 26, 2023
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The development history of rotary evaporator can be traced back to the early 20th century.
In 1939, Walter Buqi set up his own glass blowing factory in the basement of his home in Haier brug. This factory mainly produces glass fiber for textile industry and glass instruments for school laboratories, hospitals and factories. Three years after the establishment of the factory, the space has become too small. Walter Buqi and his 30 employees moved the glass blowing factory from Haier brug to a new factory in fravel. During this period, the factory mainly produces round level meters for measuring and glass instruments.
In 1950 and 1955, scientists C.C.Draig and M.E.Volk respectively put forward the concept of rotary flask to improve mixing, increase heat input and save product operation procedures. In addition, they also proposed a condenser for efficient condensation of steam. WalterBüchi adopted the ideas of C.C.Draig and M.E.Volk, and combined with the chemical industry in Basel, researched and manufactured the first rotary evaporator equipment.
The chemical rotary evaporator in 1957 was characterized by an operating induction motor without sparks and a powerful glass condenser with cooling coils. For the first time, it can continuously control the rotation speed of the motor at 0-240rpm, and has a simple preset potentiometer. The condenser is placed on the transmission unit through a standard joint. The first improved rotary evaporator product, which came out in 1957, used a feeding tube and a cock valve (Cork) to continuously add a liquid water jet pump as a vacuum source during distillation, and it was suggested to use a water bath for heating, so that the rotary flask could be partially immersed in the water bath.
The first patented instrument was sold in Basel in 1957, and made its first appearance in the world at ACHEMA exhibition in Frankfurt in 1958, and achieved unprecedented success.
1959: Scientists further improved the rotary evaporator machine so that it can be better applied to various experimental scenes. For example, by improving the heating system of device, it can better control the temperature, thus improving the accuracy and reliability of the experiment. At the same time, the vacuum system of the rotary evaporator is improved to provide a stronger vacuum degree, so that the solvent in the sample can be removed better.
1960s: With the continuous progress of science and technology and the increasing demand for application, the rotovap also entered a period of rapid development. During this period, the improvement mainly focused on improving its performance and efficiency. For example, by improving the motor and control system, it can realize faster and more accurate speed control and temperature adjustment. At the same time, various types of rotavaps have been developed to meet the needs of different experimental scenes.
1970s: During this period, the improvement of products mainly focused on improving its reliability and durability. By adopting more advanced materials and technology, the rotary evaporation unit can better adapt to various complex environmental conditions and prolong its service life. At the same time, the automation and intelligence level of rotary evaporator are further improved, so that it can better meet the needs of scientific research and production.
1980s: During this period, the improvement of chem rotary evaporator mainly focused on improving its versatility and flexibility. For example, by developing various types of items, it can be applied to different experimental scenes and uses. In addition, the automation and intelligence level of the machines are further improved, so that it can realize more efficient and accurate experimental operation.
From 1990s to present: With the continuous progress of science and technology and the increasing demand of application, the rotary evaporator is constantly updated. Modern rotary evaporators system are usually characterized by automation, intelligence and multifunction. They can be connected with computers and controlled by software to realize remote operation and data acquisition. In addition, the modern equipment has stronger corrosion resistance, high pressure resistance and high temperature resistance, and can adapt to a wider range of application scenarios. At the same time, the development of rotovap evaporator also presents some new trends and directions, such as miniaturization, portability and customization. These new trends and directions make the products play a greater role in scientific research and production, and improve the efficiency of the experiment and the quality of the results.
Future development direction of rotovap
Intelligence and automation: By introducing more advanced sensors, controllers and actuators, the intelligence and automation of rotary evaporator are realized. For example, machine vision and artificial intelligence technology can be used to identify and track the experimental process, automatically adjust parameters such as temperature, rotation speed and vacuum degree, reduce manual intervention, and improve experimental efficiency and accuracy.
Application of new materials and technologies: Adopt new materials with high temperature resistance, high pressure resistance and corrosion resistance to improve the reliability and durability of equipment. At the same time, new heating technology, cooling technology and vacuum technology are introduced to improve the evaporation efficiency and experimental effect of the equipment.
Multifunctional and customized: Develop rotary evaporators suitable for different experimental needs, such as equipment that can realize multiple functions such as distillation, concentration, separation and purification. At the same time, according to the special needs of customers, customized design equipment to meet the individual needs of customers.
Energy conservation and environmental protection: Adopt efficient energy utilization technology and environmental protection materials, reduce equipment energy consumption and waste emission, and achieve the goals of energy conservation and environmental protection. For example, renewable energy such as solar energy and wind energy can be used to provide the energy needed by the equipment.
Miniaturization and portability: By optimizing the design and adopting new materials, the volume and weight of the equipment are reduced, and the miniaturization and portability of the machines are realized. This can make the equipment more convenient to carry and move, and expand its application range.
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