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WEAK ACID CATION EXCHANGE RESIN
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Weak Acid Cation Exchange Resin (WAC)

SEPLITE ® Weak Acid Cation Exchange Resin

The weak acid cation exchange resin is the type of ion exchange resin with functional group of carboxylic acid group (-COOH) . They show weak acidity like acetic acid, having the ability to exchange with bases such as NaOH and weak acid salts such as NaHCO3.

The weak acid cation exchange resins have two kinds of chemical structures, a methacrylic acid type and an acrylic acid type. This makes a difference for the ion exchange ability. The methacrylic acid type can be used at pH above 5, while the acrylic acid type can be used at pH above 4. Even though use is restricted, it is easier to regenerate than a strong acid cation exchange resin.

Weak Acid Cation Exchange Resins are suitable in the fields of removal of water dealkalization, carbonate hardness, purification of antibiotics and amion acid. It is not used much for water processing because of the less acidity, but for antibiotic and amino acid purification.

Typical Applications For Weak Acid Cation Exchange Resin

 

 

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Latest News

02 2022-07
Sunresin – Argentina Angeles Salt Lake 25KT/A DLE Project, (Phase I) well Accepted

In this week at Sunresin’s headquarter in Xi’an, there has been successfully held the acceptance meeting of the Sunresin (SZ.300487) -Argentina Angeles Salt lake 25KT/A DLE project which was contracted by Tibet Everest(SH. 600338) in Mar. 2022. The Phase I acceptance inspection of this Lithium carbonate extraction project is smoothly passed. The quality of SR’s systemic equipment and strictly scheduled manufacture process are highly evaluated by the proprietor together with the third party experts.

09 2022-06
Sunresin’s Chairwoman Listed in Forbes China’s 50 Women In Tech

Forbes China released its list of "Women in Tech 2022" last week, featuring 50 Chinese women. Sunresin’s Chairwoman, Gao Yuejing, is on the list in recognition of her leadership in continuously breaking through the bottleneck of innovation in the adsorption and separation industry, and bringing the industry to a wider, deeper, and more cutting-edge level.

07 2022-06
Sunresin-Minmetal’s lithium carbonate project passes project acceptance

Recently, the performance acceptance of the transformation and expansion project of the Minmetals Salt Lake’s 4,000 t/a lithium carbonate production line implemented by Sunresin has been successfully completed, marking the successful conclusion of this benchmark project of Lithium Extraction from salt lake brine. The construction of this project started in late November 2021 and has gone through a number of challenging conditions such as the Covid lockdown and logistics challenges caused by the pandemic. Since the beginning of the project, Sunresin has mobilized a highly dedicated, customer-oriented and solution-driven team to ensure the smooth operation of the project and timely implementation and production on site.

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