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A Rotary Evaporator That Can Accurately Quantify Concentrate

A technology of rotary evaporator and concentrated liquid, which is applied in the directions of distillation, distillation separation, distillation adjustment/control, etc. in a rotary container, to achieve the effects of reducing heating water consumption and oil consumption, cost saving, and volume reduction

Active Publication Date: 2021-10-01
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a rotary evaporator that can accurately realize the quantitative control of concentrated liquid, and solves the problem of accurate quantitative control of concentrated liquid

Method used

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  • A Rotary Evaporator That Can Accurately Quantify Concentrate
  • A Rotary Evaporator That Can Accurately Quantify Concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 As shown, the rotary evaporator described in this embodiment that can accurately realize the accurate quantification of concentrated liquid includes: a support 1, a detachable distillation bottle 2 and a condenser 3 are fixed on the support 1, and the distillation bottle 2 is filled with The liquid to be concentrated is heated by a heating assembly to achieve evaporation and concentration; the bottom of the condenser 3 is connected with a collection bottle 4 for collecting fractions; the support is also provided with a rotating motor 10 that controls the rotation of the distillation bottle 2 (The rotary evaporator of the present invention can also be provided with a control panel for controlling the parameter speed of the rotating motor and heating temperature, not shown in the figure), and control components for controlling the rotating speed and heating temperature.

[0023] Such as figure 1 In the shown rotary evaporator, the bottom of the distillation ...

Embodiment 2

[0030] As a structure that can be transformed, such as figure 2 The structure of the rotary evaporator shown in this embodiment, the rotary evaporator that can accurately realize the quantification of the concentrated liquid described in this embodiment, includes: a support 1, a detachable distillation bottle 2 and a condenser 3 are fixed on the support 1, and the distillation The liquid to be concentrated is contained in the bottle 2, and is heated by a heating assembly to realize evaporation and concentration; the bottom of the condenser 3 is connected with a collection bottle 4 for collecting fractions; The rotary motor 10 (the rotary evaporator of the present invention can also be provided with a control panel for controlling the rotating speed, not shown in the figure), and a control assembly for controlling the heating temperature, etc.

[0031] Such as figure 2 In the shown rotary evaporator, the bottom of the distillation bottle 2 (based on the position of the worki...

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Abstract

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 quantifying concentrated liquid. According to the rotary evaporator of the present invention, which can accurately realize the quantification of the concentrated liquid, the distillation bottle is improved to a structure with a liquid discharge port formed at the bottom, which can eliminate the need to disassemble the distillation bottle and have no great influence on the negative pressure in the distillation system. The discharge of the concentrated liquid is realized under the premise; at the same time, a graduated metering capillary is set at the position of the liquid discharge port, so that the change of the concentrated liquid amount can be visually observed, and the distillation is stopped immediately when the concentrated liquid amount reaches the designed accurate amount. A definite amount of concentrated solution can be released accurately for the determination of reaction yield and other indicators, which can realize the unification of detection standards, and can also study and compare the performance of different concentrated solutions with the same yield and the performance of concentrated solutions with different concentration levels of the same sample.

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 quantifying concentrated liquid. 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 evaporation flask in a negative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/08B01D3/42
CPCB01D3/085B01D3/42
Inventor 温淑瑶
Owner BEIJING NORMAL UNIVERSITY