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Rotary evaporator capable of accurately achieving fraction quantification

A technology of rotary evaporator and distillate, which is applied in the direction of distillation in a rotary container, distillation separation, separation method, etc., to achieve the effects of volume reduction, reduction of heating water consumption and oil consumption, and cost saving

Active Publication Date: 2018-05-18
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Rotary evaporator capable of accurately achieving fraction quantification
  • Rotary evaporator capable of accurately achieving fraction quantification

Examples

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Embodiment 1

[0023] see figure 1 The structure shown in this embodiment, the rotary evaporator that can accurately realize fraction quantification, includes: a bracket 1, a detachable distillation bottle 2 and a condenser 3 are fixed on the bracket 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 rotating speed, not shown in the figure), and a lifting assembly for controlling the lifting of the distillation bottle 2 and a control assembly for controlling the heating temperature. The heating assembly is a water bath or an oil bath arranged at the bottom of the retort 2, and the l...

Embodiment 2

[0030] As a structure that can be transformed, such as figure 2The structure of the rotary evaporator shown in this embodiment, the rotary evaporator that can accurately realize the quantification of fractions described in this embodiment, includes: a bracket 1, a detachable distillation bottle 2 and a condenser 3 are fixed on the bracket 1, and the distillation bottle 2 contains the liquid to be concentrated, 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 the distillate; the bracket is also provided with a device to control the rotation of the distillation bottle 2 Rotary motor 10 (the rotary evaporator of the present invention can also be provided with a control panel for controlling the rotational 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, th...

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Abstract

The invention relates to the technical field of chemical experiment equipment, in particular to a rotary evaporator and in particular to a rotary evaporator capable of accurately achieving fraction quantification. The invention provides the rotary evaporator capable of accurately achieving fraction quantification. According to the rotary evaporator, a conventional spherical collection bottle is improved into a structure that a liquid discharge hole is formed in the bottom of the collection bottle, so that a fraction liquid can be discharged under a condition that the collection bottle is not detached down; meanwhile, due to a metering tube with scales in the position of the liquid discharge hole, variations of fraction quantities can be visibly observed, distillation can be immediately stopped when a fraction meets a designed accurate quantity, the precisely quantified fraction can be accurately discharged, components of fractions and indexes for reflecting quality of the fractions canbe tested, property differences of fractions of a same distillation sample at different distillation stages can be studied, and unification of detection standards can be achieved.

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 realizing fraction quantification. 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 negativ...

Claims

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Application Information

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