Rotary evaporator capable of accurately and quantitatively recovering several solvents at a time

A rotary evaporator, sub-accurate technology, applied in the direction of distillation, distillation separation, vacuum distillation, etc. in a rotating container, can solve problems such as low efficiency, and achieve the effects of easy installation, cost saving, and component reduction

Pending Publication Date: 2019-11-05
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a rotary evaporator that can accurately and quantitatively recover multiple solvents at one time, solves the low efficiency problem that a rota

Method used

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  • Rotary evaporator capable of accurately and quantitatively recovering several solvents at a time
  • Rotary evaporator capable of accurately and quantitatively recovering several solvents at a time
  • Rotary evaporator capable of accurately and quantitatively recovering several solvents at a time

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Example Embodiment

[0063] Example 1

[0064] See figure 1 As shown, the rotary evaporator described in this embodiment that can accurately and quantitatively recover multiple solvents at a time includes: a support 1 on which a rotating motor 2 is fixed (the rotary evaporator of the present invention is also provided with a control The control panel for rotating motor speed and heating temperature, not shown in the figure), and control components for controlling speed and heating temperature. The rotating motor 2 drives the distillation flask assembly 4 to rotate through a transmission body 3. One end of the transmission body 3 is fixed with a detachable distillation flask assembly 4, and the other end is connected with a detachable condenser assembly 5. The bottom of each condenser is connected with a respective collector 6 for collecting respective fractions. The collectors 6 form a collector group, and the top of each condenser is connected with a respective vacuum tube branch, including a first ...

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Abstract

The invention relates to the technical field of chemical experiment devices, in particular to a rotary evaporator capable of accurately and quantitatively recovering several solvents at a time. According to the rotary evaporator, one distilling bottle, one condenser and one collecting bottle of an existing rotary evaporator are replaced with at least two distilling bottles, at least two condensersand at least two collecting bottles respectively, an existing water (oil) bath pot is replaced with an electric heating belt, and the condensers and the distilling bottles are communicated through connectors with porous pipe structures. All the distilling bottles are sequentially connected in series and rotate around the same axis. A down-tilting included angle of 2-44 degrees is formed between the rotating axis of the distilling bottles and the horizontal plane. A bracket support is arranged below the space between every two adjacent distilling bottles. All the condensers are vertically placed side by side. The upper side and the lower side of each collector are each provided with a valve, and a quantitative thin pipe is arranged between each valve and the corresponding side of the corresponding collector. No solvent evaporating, condensing and collecting pipelines are communicated. All the solvents can be accurately and quantitatively recovered on the premise of not detaching the collectors and not greatly influencing the negative pressure of the system.

Description

technical field [0001] The invention relates to the technical field of chemical experiment equipment, in particular to a rotary evaporator, in particular to a rotary evaporator capable of accurately and quantitatively recovering multiple solvents at one time. Background technique [0002] Rotary evaporator is an extraction experimental equipment for vacuum distillation and concentration of materials. It is widely used in experiments such as large-scale concentration, drying, extraction and recovery of samples, especially for rapid distillation of large amounts of solvents. Existing rotary evaporators are usually composed of vacuum pumping devices, heating devices, condensing devices, rotating devices and other components. The principle of rotary evaporators is mainly controlled by electronic equipment, so that the flask rotates at a constant speed at the most suitable speed to form a thin film of solvent , increase the evaporation area, and use a vacuum pump to make the evap...

Claims

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Application Information

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IPC IPC(8): B01D3/08B01D3/10B01D3/42
CPCB01D3/085B01D3/106B01D3/42
Inventor 温淑瑶
Owner BEIJING NORMAL UNIVERSITY
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