Products Bio-Chem Equipment Rotary Evaporator

Rotary Evaporator

A Rotary Evaporator(rotovap) is a lab device that gently removes solvents from samples by evaporation, making it highly efficient. It is commonly used in chemistry labs. Additionally, rotovaps are utilized in molecular cooking to create distillates and extracts.


Structure of rotary evaporator

A rotary evaporator is comprised of several components that work together to gently remove solvents from samples through evaporation. These include a motor unit that rotates the evaporation flask, a vapor duct for sample rotation and to draw off vapor, and a vacuum system that reduces pressure within the system.

In addition, there is a heated fluid bath to heat the sample, a condenser for coolant circulation, and a flask to collect the distilling solvent. A mechanical or motorized mechanism is used to lift the evaporation flask from the heating bath. The vacuum system can range from a water aspirator for non-toxic solvents, to a regulated mechanical vacuum pump with refrigerated trap.

Glassware in the vapor stream and condenser can be simple or complex, depending on the desired goals of evaporation and the properties of dissolved compounds. Commercial instruments with basic features are available, and various traps can be inserted between the evaporation flask and vapor duct. Modern equipment may also include digital control of vacuum, temperature and rotational speed, and vapor temperature sensing.

Safety

Possible hazards associated with the use of rotary evaporators include implosions due to flaws in glassware, such as star-cracks, and explosions resulting from concentrating unstable impurities during evaporation. The latter may occur when evaporating ethereal solutions containing peroxides or unstable compounds such as organic azides and acetylides, nitro-containing compounds, and molecules with strain energy.

To avoid injury, users of rotary evaporation equipment must take precautions to prevent contact with rotating parts, including loose clothing, hair, or necklaces. The winding action of the rotating parts can draw users into the apparatus, leading to breakage of glassware, burns, and chemical exposure. Extra caution is necessary when working with air reactive materials, especially when under vacuum, as a leak can draw air into the apparatus and cause a violent reaction.

KinTek rotary evaporator

Our rotary evaporators come with a long production history and a complete range of products that can be customized to suit your specific needs.

FAQ

What is laboratory vacuum pump?

A laboratory vacuum pump is a tool used to create a low-pressure environment inside a closed system, allowing various scientific processes such as vacuum filtration, aspiration, and solvent evaporation. They work by removing gas molecules from a sealed volume, creating a partial or complete vacuum. There are different types of vacuum pumps used in laboratory applications, including rotary vane, diaphragm, and scroll vacuum pumps.

What is the purpose of a rotary evaporator?

The purpose of a rotary evaporator, or rotovap, is to distill a solvent to separate a given mixture into its components based on their respective volatilities, through the process of evaporation and condensation. The rotovap is used to concentrate non-volatile components in a mixture and to extract volatile aroma and flavor molecules from mixtures gently and at low temperatures. The two key components of the rotovap allow for a gentle, precise, and efficient distillation not found in conventional distilling apparatuses: vacuum removal of solvent to lower boiling point and rotary flask rotation to increase surface area and speed up distillation.

What is the purpose of vacuum pump in laboratory?

The purpose of a laboratory vacuum pump is to aid in a wide variety of research applications. It is mainly used to provide suction for filtration or aspiration of liquid samples and regulate solvent evaporation by reducing vapor pressure. It can also improve instrument-detection sensitivity, collect gas samples, and provide a negative pressure environment to prevent potentially hazardous sample materials from escaping. Vacuum pumps are designed to move air or vapors, not liquids or suspensions. They are an adaptable tool that can be useful to many research scientists and engineers.

What is electric rotary kiln?

Electric rotary kiln is a type of rotary kiln that uses electricity as its heating source to indirectly heat materials in the kiln body. It is commonly used for high-temperature oxidation and reduction reactions, calcination of granular or powder materials, and other industrial applications. The temperature of the kiln can reach up to 1100℃, and it is widely used for the calcination and drying of various materials, including positive and negative electrode materials, rare earth materials, magnetic materials, and non-metallic mineral materials. Its advantages include high-speed electric heating, energy efficiency, and environmental friendliness.

What is a glass reactor?

A glass reactor is a laboratory instrument used to facilitate chemical reactions. It provides an environment conducive for reactions and holds the reactants in place, while also allowing for easy monitoring of the progress of the reaction. There are two main types of glass reactors: batch reactors and continuous reactors. Batch reactors are smaller in size and can only handle small quantities of reactants, while continuous reactors allow for the pouring of reactants into the reaction chamber continuously and can handle larger volumes of reactants. Glass reactors are used in a variety of applications, from chemical synthesis to environmental and life science research.

What is the short path distillation?

Short path distillation is a purification technique that separates compounds based on their volatilities in a boiling liquid mixture under reduced pressure. It involves the distillate traveling a short distance, often only a few centimeters, and is done at reduced pressure. Short path distillation is ideal for laboratory applications where minimal instrumentation footprint is crucial. The boiling temperature is reduced by lowering the operating pressure, making it a continuous process with very short residence time. It is often used for unstable compounds or to purify small amounts of compounds, achieving distillate purity levels of up to 99%.

What is Isostatic Pressing?

Isostatic pressing is a powder metallurgy process that uses equal pressure in all directions to produce uniform density and microstructure in a powder compact.

What are the benefits of isostatic pressing?

Isostatic pressing provides uniform strength and density, shape flexibility, a wide range of component sizes, and low tooling cost. It also allows for larger parts, enhances alloying possibilities, reduces lead times, and minimizes material and machining costs.

Why rotary evaporator is used in solvent extraction?

Rotary evaporators are used in solvent extraction because they allow for the efficient and gentle removal of solvents from samples by evaporation. This is achieved by reducing the pressure to lower the solvent boiling point, rotating the sample to increase the effective surface area, heating the solution, and then condensing the evaporated solvent in a cooled glass condenser. This process leaves the concentrated compound in the flask and is often used in medicinal chemistry, pharmaceutical, chromatography, and petrochemical fields.

What is the use of pump in laboratory?

Pumps are commonly used in laboratories to provide suction for the filtration or aspiration of samples, and to reduce vapor pressure in instruments such as rotary evaporators and lab ovens. Liquid pumps, including syringe, peristaltic, and metering pumps, are used to dispense and transfer fluids. When choosing a laboratory pump, it is important to determine the type of pump that best fits the research needs, such as the required level of vacuum for evaporative applications or freeze drying. Overall, laboratory pumps are adaptable tools that aid a wide range of research scientists and engineers in various applications.

How does a electric rotary kiln work?

An electric rotary kiln works by gradually heating materials, such as minerals and ores, to very high temperatures using electricity as its power source. The kiln consists of a body, discharging device, electric heating device, and control unit. The electric heating device heats the surrounding environment of the materials in the kiln, and the temperature is monitored by a thermocouple. The kiln body has a certain inclination angle, with the feed end at a higher position than the discharge end. As the material rotates with the furnace tube, it passes through various temperature zones before being discharged.

What are the advantages of glass reactor?

The advantages of glass reactors are their ability to optimize and replicate chemical reactions, and provide a clear view of the reaction process. They are corrosion-resistant, work with different atmospheric pressures and vacuum, and can be used for a variety of applications such as catalytic research, process engineering, and biomass research. Glass reactors are also designed with safety in mind, allowing for safe processing of solvents and acids. Other benefits include the availability of various options such as heating/cooling systems, vacuum pumps, PH probes, and pressure gauges.

Is short path distillation the same as distillation?

Short path distillation is a type of distillation technique used to separate and purify small amounts of compounds that are not stable at high temperatures. It involves the distillate traveling a short distance, often only a few centimeters, at reduced pressure. While short path distillation is a specific type of distillation, it is not the same as traditional distillation, which typically involves heating a mixture to its boiling point and condensing the vapors. Short path distillation allows for a lower heating temperature and a shorter distillation distance, resulting in less loss of compound and more efficient purification.

What are the types of isostatic pressing?

There are two main types of isostatic pressing:

  • Hot Isostatic Pressing (HIP): This type of isostatic pressing uses high temperature and high pressure to consolidate and strengthen the material. The material is heated in a sealed container and then subjected to equal pressure from all directions.
  • Cold Isostatic Pressing (CIP): In this type of isostatic pressing, the material is compacted at room temperature using hydraulic pressure. This method is commonly used to form ceramic and metal powders into complex shapes and structures.

Can rotary evaporator remove water?

Yes, a rotary evaporator can remove water. By changing the temperature to speed up the evaporation rate or by vacuuming with a vacuum pump to further reduce the pressure and lower the boiling point, a rotary evaporator can evaporate solutions that contain water and other substances. The electronic control of the rotary evaporator keeps the rotation of the flask at a constant speed, creating a larger surface area for heating and faster evaporation speeds. The traditional distillation method is less efficient and accurate than a rotary evaporator, which is widely used in chemical laboratories, industrial, bio-pharmaceutical, and food-making fields.

What is used in a laboratory to form and contain a vacuum?

A laboratory vacuum pump is used to form and contain a vacuum by removing air or gas molecules from a sealed chamber or system. The vacuum pump creates negative pressure, which can be used for a variety of applications such as filtration, aspiration of liquid or suspended samples, and solvent evaporation. Different types of pumps, including rotary vane, diaphragm, and turbomolecular pumps, are available, and the choice depends on the required vacuum level and the specific application. It's important to choose the right vacuum pump for the intended use to ensure optimal performance and reliability.

What are the advantages of electric rotary kiln?

The advantages of electric rotary kiln include high thermal efficiency, no smoke, ash, or slag, easy automatic control of conditions, high kiln temperature control accuracy, and avoidance of corrosion and environmental pollution problems. Electric rotary kilns use clean electricity and do not require fuel storage or transportation stations. They are suitable for narrow pre-firing temperature processes and can be used for various materials, including positive and negative electrode materials, rare earth materials, chemical catalytic materials, and non-metallic mineral materials. The electric rotary kilns by KinTek feature high-speed electric heating, intelligent PID thermal control technology, and excellent dynamic sealing technology for inert gas protection.

What material is glass reactor?

The glass reactor is made of borosilicate glass and has excellent physical and chemical properties. The borosilicate glass is highly resistant to thermal shock, chemical corrosion, and mechanical impacts, making it ideal for use in laboratory equipment. The glass is also transparent, allowing for easy observation of the reaction inside the vessel. The glass reactor is designed to withstand high temperatures and pressure, and it is used in various industries such as petrochemical, pharmaceutical, and dye, among others.

What are examples of short path distillation?

Some examples of short path distillation include processing edible oils, creating fragrances, producing fuels, distilling polyurethane, distilling compounds that are unstable at high temperatures, and distilling small quantities of a compound.

What type of isostatic pressing equipment do you have?

Our primary focus is the production of cold isostatic pressing equipment for both laboratory and industrial use.

What are the common materials used for evaporating crucibles?

Evaporating crucibles are commonly made from materials such as tungsten, tantalum, molybdenum, graphite, or ceramic compounds. These materials have high melting points and good thermal conductivity, making them suitable for the high-temperature conditions required during evaporation. The choice of crucible material depends on factors such as the evaporant material, desired film properties, and process parameters.

Is rotary evaporator used for distillation?

Yes, rotary evaporator is used for distillation. It is a device used in chemical laboratories to efficiently and gently remove solvents from samples by evaporation. The system works by reducing the pressure to lower the solvent boiling point, rotating the sample to increase the effective surface area, heating the solution, and then the evaporated solvent condenses in a cooled glass condenser. Rotary evaporation is most often and conveniently applied to separate "low boiling" solvents such as n-hexane or ethyl acetate from compounds which are solid at room temperature and pressure.

How does a laboratory vacuum pump work?

A laboratory vacuum pump works by removing gas molecules from a sealed volume, creating a partial or complete vacuum. The pump creates a difference in pressure between the system and the outside atmosphere, causing gas molecules to move toward the pump and away from the system. As molecules are removed from the vacuum space, it becomes harder to remove additional ones, thus increasing the vacuum power required. Different types of vacuum pumps are used depending on the application, including rotary vane, diaphragm, and scroll vacuum pumps. Vacuum pumps are classified by the pressure range they can achieve to distinguish their capabilities.

what can electric rotary kiln be used for?

Electric rotary kiln, also known as rotary kiln electric furnace, is used for high-temperature oxidation and reduction reactions, and for calcining granular or powder materials. It is widely used in industries such as rare earth materials, nonferrous metal materials, chemical catalytic materials, powder metallurgy materials, and kaolin non-metallic mineral materials.

What are the different types of glass reactors?

Different types of glass reactors include single-layer, double-layer, and three-layer glass reactors. Other types of reactors include glass-lined reactors, hydrothermal synthesis reactors, magnetic stirring reactors, electric heating reactors, and steam reactors. Glass reactors are commonly used in high and low-temperature reactions, vacuum reactions, solvent synthesis at a constant temperature, distillation and reflux reactions, vacuum distillation reactions, extraction separation reactions, purified reactions, and concentration reactions.

What temperature is short path distillation?

The Short Path Vacuum Distillation operates at a temperature far below the boiling point of the material being distilled, allowing for the purification of heat-sensitive materials at much lower temperatures. The ultimate pressures of 0.001 mbar can be achieved, which prevents degradation and allows for very high equivalent temperatures to be achieved at ambient pressure. The high vacuum distillation technique enables the separation of heat-sensitive or high molecular weight compounds not possible by conventional techniques.

What are the advantages of short path distillation?

Short path distillation has several advantages over other distillation processes. It offers a continuous feed functionality, faster completion time, and is ideal for compounds that are unstable at high temperatures. It is also automated and easy to use, produces high concentrations of distillates, and reduces product waste. These benefits make short path distillation a highly advantageous option for a variety of uses and applications, especially in industries with time-sensitive materials and production cycles.

How long does short path distillation take?

The length of time it takes to complete short path distillation depends on various factors, such as the type and quantity of the compound being distilled, the equipment used, and the skill of the operator. Generally, short path distillation is a relatively quick process, with some runs taking as little as 30 minutes, while others may take several hours. The key to a successful distillation is to carefully monitor the temperature and pressure throughout the process and adjust as necessary to ensure maximum efficiency and purity of the end product.

What are the wet bag process and the dry bag process?

The CIP molding process is divided into two methods: the wet bag process and the dry bag process.

Wet bag process:

In this method, the powder material is placed in a flexible mold bag and placed in a pressure vessel filled with high-pressure liquid. This process is ideal for producing multi-shaped products and is suitable for small to large quantities, including large-sized parts.

Dry bag process:

In the dry bag process, a flexible membrane is integrated into the pressure vessel and is used throughout the pressing process. This membrane separates the pressure fluid from the mold, creating a "dry bag." This method is more hygienic as the flexible mold does not get contaminated with wet powder and requires less cleaning of the vessel. It also features fast cycles, making it ideal for mass producing powder products in an automated process.

What are the advantages of using evaporating crucibles?

Evaporating crucibles offer several advantages in thin film deposition processes. They provide a controlled environment for the evaporation of materials, allowing for precise control over film thickness and uniformity. Crucibles can withstand high temperatures and provide efficient heat transfer, ensuring consistent evaporation rates. They are available in various sizes and shapes to accommodate different evaporation systems and substrate configurations. Evaporating crucibles also allow for the deposition of a wide range of materials, including metals, semiconductors, and ceramics. They can be easily loaded and unloaded, facilitating quick material changes or process adjustments. Overall, evaporating crucibles are essential tools in thin film deposition techniques, offering versatility, reliability, and reproducibility.

What are the principles of rotary evaporation?

The basic principle of rotary evaporation is to increase a sample's surface area and optimize its temperature and vacuum level, enabling effective separation of solvents in a short time. A cooling condenser helps to recover the separated solvent. It is a gentle and efficient method for liquid separation and purification, with specific applications including concentration, crystallization, solvent distillation, and chemical synthesis. A rotary evaporator and a vacuum pump are the two equipment required for a rotary evaporation system. Selection of the optimal vacuum pump is based on considerations such as chemical compatibility, ability to process wet vapors, ultimate depth of vacuum, flow rate, and adjustable control of vacuum levels.

What temperature should a glass reactor be?

The temperature range of a glass reactor may vary depending on the model and its intended use. In general, glass reactors can operate at temperatures as low as -80°C and as high as 300°C. However, the optimal working temperature will depend on the specific reaction being conducted and the chemicals being used. It is important to carefully monitor and control the temperature of the glass reactor to ensure the safety and effectiveness of the reaction.

How should evaporating crucibles be handled and maintained?

Evaporating crucibles should be handled and maintained with care to ensure their longevity and performance. Crucibles should be cleaned thoroughly before each use to remove any residual material from previous depositions. Avoid using abrasive materials that could damage the crucible's surface. During loading and unloading, handle crucibles with clean gloves or specialized tools to prevent contamination. When not in use, store crucibles in a dry and clean environment to avoid corrosion or degradation. Regular inspection of crucibles for cracks, defects, or signs of wear is important to prevent unexpected failures during the evaporation process. Follow the manufacturer's recommendations for any specific maintenance procedures, such as annealing or surface treatment, to prolong the crucible's lifespan.

What are the advantages of a rotary evaporator?

The advantages of using a rotary evaporator include lower boiling temperatures, faster evaporation of solvents, fewer operations, and the ability to suppress bumping during the process. The lower boiling temperatures allow for the separation of solvents and compounds at lower temperatures, while faster evaporation speeds up the process. Fewer operations are needed thanks to the built-in lifting and falling motor, and bumping is suppressed, allowing for quick and gentle evaporation. Rotary evaporators are particularly useful for heat-sensitive compounds and distillation of complex mixtures.

How long is your delivery time? If I want to customize the instrument, how long does it take?

If the items are available in stock, the delivery time is 6-12 days. We also offer customization services for our customers. The lead time for customized products varies depending on the specifications and can take between 25-55 days.

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Catalog of Rotary Evaporator

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Catalog of Rotary Evaporator

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Catalog of Laboratory Vacuum Pump

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Catalog of Electric Rotary Kiln

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Catalog of Glass Reactor

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Catalog of Short Path Distillation

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Catalog of Lab Isostatic Press Machine

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Catalog of Evaporation Crucible

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