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Ultrapure Water Production

Ultrapure resin for semiconductors and nuclear power
In theory, ultrapure water refers to water having a resistivity greater than 18 MΩ*cm (25 °C) or close to 18.3 MΩ*cm (25 °C). In addition to water molecules, this water has almost no impurities, and there are no organic substances such as bacteria, viruses, and chlorine-containing dioxins.

Ultrapure water is mainly used to develop ultra-pure materials, such as semiconductor original materials, nano-fine ceramic materials, and water for nuclear power industry.

Such water is difficult to achieve in the general process. Theoretically, it can be treated by two-stage reverse osmosis and then through a series of mixed exchange resin polishing.

Ultrapure water is currently used mainly in the semiconductor industry and the nuclear industry.
In the electronics industry, from the cleaning of various electronic components to the preparation of a series of process solutions, high-quality pure water is needed, especially for the production of semiconductor devices and large-scale integrated circuits. Ultra-pure is used in almost every Water cleaning process. Ultrapure water prepared by electronic grade resin basically requires a resistance of 15 MΩ*cm (25 °C) or more.

The water treatment of nuclear power plants is completely different from that encountered in ordinary power plants. In nuclear power plant circuits, and in environments where all activities must be eliminated, it is absolutely essential that the resin used does not release any ions or substances that can cause precipitation and corrosion. Therefore, the nuclear grade resin must have extremely high stability, must reach a very high level of regeneration, and must have a very high purity.

Ultrapure water prepared by nuclear grade resin basically requires a resistance of 18 MΩ*cm (25 °C) or more.

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Latest News

26 2021-03
Some questions about using ion exchange resins in water treatment

In water treatment using Ion Exchange Resins, there are a number of points that need special attention.

18 2021-03
Enmore Bio Conference (EBC) 2021 kicked off on March 12 in Suzhou

Sunresin, as a listed company specializing in the development of high-performance separation and purification materials, design and manufacturing of high-efficiency separation and purification system devices as well as overall turnkey solutions, participated in the Enmore Bio Conference (EBC) 2021 with a professional team covering marketing, R&D and industrial application, to bring high-quality chromatographic purification media and microcarrier products to provide users in the field of biomedicine with more on-site technical expertise and product support to empower the development of the biomedical industry and provide users with more choices.

27 2020-11
Acetone Purification and Cycling (Methylamine removal), solvent in the production of PPS (polyphenylene sulfide)

The ion exchange resin (IER) method is very excellent and efficient for acetone purification. Acetone will pass cation exchange resins first and then the anion exchange resins, more than 95% methylamine will be removed.

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