The color indicator resin is introduced into gel type anion or cation exchange resin through a special process, which makes the color changes under different ion types. It is convenient for users to judge the exhaustion state of ion exchange resin directly.

Chromatographic separation is an effective method for separating components in complex mixtures, which is based on different partition coefficients of different substances in stationary phase and mobile phase. When the two phases move in relative motion, these substances move together with the mobile phase and are distributed repeatedly between the two phases. Thus, different substances are eluted at different places and separation is achieved.

The performance of ion exchange resin is affected by many factors. If abnormal performance degradation of ion exchange resin occurs in daily use, we generally carry out the cause analysis and take corresponding measures according to the following sequence.

The strong base anion exchange resin contains a certain amount of moisture and should not be stored in the open air. During the storage and transportation, it should be kept moist to avoid air drying and dehydration, which will cause the resin to break. If dehydrated during the storage, the resin should be soaked in concentrated salt water (25%) and then gradually diluted. Do not put the resin into water directly in case of rapid expansion and breakage.

Sunresin has selected professional R&D and production personnel to form a technical team to adjust and optimize the resin synthesis process, and has successfully developed a new generation of high exchange-capacity styrene series macroporous strong acid cation exchange resin Seplite® LSF971 Imporve and high exchange-capacity styrene type macroporous weak base anion exchange resin Seplite® LSF973 Imporve. Special matrix white balls synthesis process design optimizes the molecular framework and pore structure. At the same time in the ascension of exchange capacity of the resin, resin strength and service life also has improved. After industrial verification, the above two resins have significantly improved the material liquid treatment c1apacity compared with the conventional Seplite® LSF971 and Seplite® LSF973 resins, and the unit consumption of water and acid-base reagents during the operation of the resin is significantly reduced. With the high praise of many manufacturers in the industry, Sunresin's new generation of high exchange-capacitySeplite® LSF971 Imporve with Seplite® LSF973 Imporve resin will bring a cost revolution to the production of biodigesters.

Strong acid ion exchange resin is a kind of granular product with sulfonic group on the crosslinked styrene skeleton. It can be used in all pH ranges (0-14), stable at various temperatures and resistant to high temperatures of 100-120℃. Therefore, it is widely used in water treatment for manufacturing pure water and soft water, as well as in pharmaceutical products, food refining, catalyst and other fields.

Sunresin has developed a series of special resins for water treatment that exceed the standard. It can specifically and accurately remove the excessive boron, fluorine, nitrate and chlorate in the water source, so as to achieve the continuous compliance with water quality standards.

In the first half of 2020, Sunresin took active measures to minimize the impact of the epidemic. In terms of production, the new production capacity has been released obviously with the construction completion of the new production base, and the production capacity bottleneck which has restricted the development of the company for many years has been broken. As for R&D, the R&D for key application fields and urgently needed resin varieties in the market has been rapidly enlarged, and remarkable results have been achieved. In terms of sales, the large application fields for the international market started steadily, showing a good development momentum; Besides, Sunresin has strengthened the marketing organization in key areas of the domestic market and has been looking for new growth opportunities. In the aspect of system engineering project, as we all know, the personnel flow is limited strictly because of the 2019-nCoV, so it is impossible to provide on-site commissioning service, the customers also couldn't visit China.