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Apparatus for determining exchange capacity of ion exchange resin

A technology of ion exchange resin and exchange capacity, which is applied in material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc. Easy-to-use effects

Inactive Publication Date: 2016-01-27
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the tapered stopper is pointed, use a heavy object to press the pointed object. Because the contact point is too small, the heavy object is not firmly pressed on the bottle stopper.
During the test, due to the high air pressure in the bottle, accidents occurred from time to time when the bottle cork was opened and fell to the ground and broke, which led to the termination of the test halfway, and the smooth progress of the test could not be guaranteed.

Method used

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  • Apparatus for determining exchange capacity of ion exchange resin
  • Apparatus for determining exchange capacity of ion exchange resin
  • Apparatus for determining exchange capacity of ion exchange resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]The device A of the present invention is composed of the device B and the device C, the device B and the device C are combined in a complete set, and the device C is set on the outside of the device B to form the device A. Device B is a 250mL conical flask with an external ground mouth; device C has an internal ground mouth to match with device B, and device C is equipped with a piston, a ventilation tube, and a filter element. The designed device C has a large weight and is tightly ground to the device B, which avoids the problem of being lifted and broken during the cork experiment. After soaking the resin-containing soaking solution in a water-soluble pot at 60°C for 3 hours, use device A to quickly separate the resin from the soaking solution, and the resulting soaking solution does not contain resin, thus avoiding differences in cooling time and cooling methods between the resin and the soaking solution The measurement error of the total exchange capacity of the hyd...

Embodiment 2

[0087] The difference from Example 1 is that the device B is a container with an outer grinding port, and the device C is a filter with an inner grinding port, and the inner diameter of the inner grinding port is the same as the outer diameter of the outer grinding port.

Embodiment 3

[0089] The difference from Example 1 is that the device B is a container with an inner grinding port, and the device C is a filter with an outer grinding port, and the inner diameter of the inner grinding port is the same as the outer diameter of the outer grinding port.

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Abstract

The invention discloses an apparatus for determining the exchange capacity of ion exchange resin. The apparatus is composed of a device B and a device C, the device B is an open-ended container, the device C comprises a filter, the outlet pipeline of the device C is provided with a flow control device, and the opening of the device B is connected with the inlet end of the device C; when the flow control device is closed, a closed cavity is formed between the device C and the device B, and the volume of the cavity is kept unchanged; the device C is provided with a gas change tube, the bottom end of the gas change tube extends into the device B, the top end of the gas change tube extends to the outside of the device B, and the top end of the gas change tube is provided with a gas flow control device; and when in a stationary state, the bottom end of the gas change tube is positioned above the liquid level of a reaction liquid. The problems of influences of resin and immersion liquid cooling time difference, cooling mode difference and resin extraction in the immersion liquid removal process on the determination of the exchange capacity of ion exchange resin and on avoiding of bottle stopper breaking in test are solved.

Description

technical field [0001] The invention belongs to the field of power grid construction, in particular to a device for measuring the exchange capacity of ion exchange resins. technical background [0002] Ion exchange resins are widely used in power plants, pharmaceutical factories, and electronics industries, and play an important role in purifying water, removing anions and cations in water, and removing organic matter. Exchange capacity is an important performance index of ion exchange resins. It is related to the quality of resin products and water production, as well as the price and benefits between suppliers and users. Therefore, it is of great significance to accurately measure the exchange capacity of ion exchange resins. [0003] The total exchange capacity of ion exchange resin refers to the total amount of chemical groups that can undergo ion exchange reaction per unit quantity (weight or volume) of resin. The reaction temperature and equilibrium time between ion ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 周少玲
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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