Sunresin New Materials Co.Ltd., Xi'an

Aquarium Treatment(2020年)

seplite — 2020-08-04T10:20:39+0900

https://www.seplite.com/aquarium-treatment.html

Water quality is paramount to the health and stability of aquariums and other controlled eco-systems. Contaminants such as: Chlorine, Chloramine, Heavy Metals, Ammonia, Nitrates, Dissolved Solids and Organics must be removed.

Water must be purified before it is introduced into a living system and contaminants that may naturally build up in a closed habitat need to be removed.

Aquarium treatment involves surprisingly sophisticated chemistry. Water chemistry required for healthy nitrate resin aquarium is as varied as the life forms that thrive in them. Aquarium treatment includes conventional deionization and color indicator resins as well as granular carbon and adsorbant medias that are selective for specific contaminants such as silica, ammonia, phosphate, nitrate, etc.

Seplite offers a large number of ion exchange resins and adsorbent medias suitable for use in the aquarium industry. These products include resins that are selective for nitrate and ammonia removal, among others. All of Seplite's products are suitable for aquarium use with very low levels of toxic leachables.

Antibiotics Purification(2020年)

seplite — 2020-08-04T10:20:14+0900

https://www.seplite.com/antibiotics-purification/

Separation technique based on ion exchange & adsorbent system
Ion exchange and adsorption is an efficient and low-cost separation technique that has been widely used in the pharmaceutical industry. It is primarily a way to achieve separation and purification on a large scale with ion exchange systems with complex and designable ion exchange resins. It removes impurities, concentrates the target, and produces highly pure pharmaceuticals.

Sunresin has developed a group of CephalosporinsC (CPC) purification resins, including pretreatment, separation and decolorization years ago. Up to now Sunresin is the main CPC resin supplier worldwide.

SEPLITE® resins for pharmaceuticals are effective in decolorization & purification of antibiotics, vitamins, proteins and other medical applying chemicals.

As the first and the only A-share listed company in Chinese ion exchange and adsorbent resin industry, Sunresin took the lead in researching the resin for cephalosporin C purification and promote the rapid development of China's cephalosporin antibiotic industry. Chinese cephalosporin producers like to use Sunresin's purification technology.

Our Advantages
Many years technical innovation
Various adsorbents for antibiotics purification
Supporting Equipment & system
Successful EPC project cases

Industry Application
CPC separation & purification
Polypeptide and proteins purification
Decolorization of aminoglycoside antibiotic
Decolorization and purification of vitamin B12
Polyphenols extraction
Purification of tocopherol

Category List
SEPLITE LXA 1180 CPC pretreatment resin, removal of proteins and some unknown pigments.
SEPLITE LXA 18 CPC separation resin, removal of relevant impurities (mainly DCPC and DOCPC),enhance the purity of CPC.
SEPLITE LXA 26 CPC separation resin, removal of relevant impurities (mainly DCPC and DOCPC),enhance the purity of CPC.
SEPLITE LXA 670 Decolorization resin, removal of color components to yield a higher transmission.
SEPLITE LXA 850 Purification of CPC, Polypeptide and proteins, Refining polyphenols.
SEPLITE LXA 851 Purification of CPC, Polypeptide and proteins, Refining polyphenols.
SEPLITE LXA 870 Decolorization of aminoglycoside antibiotic such as neomycin, gentamycin, kanamycin, etc.
SEPLITE LXA 816 Purification of Clindamycin Phosphate, clindamycin B component, iohexol.
SEPLITE LXA 822 Purification of Clindamycin Phosphate, clindamycin B component, iohexol.
SEPLITE LXA 840 Extraction decolorization and chromatography purification of vitamin B12
SEPLITE LXA 501 Extraction decolorization and chromatography purification of vitamin B12.
SEPLITE LXA 1600 Extraction decolorization and chromatography purification of vitamin B12
SEPLITE LXA 818 Purification of amino acid.
SEPLITE LXA 842 Refining natural vitamin E, purification of tocopherol.

Sunresin china is an innovation oriented high-tech enterprise. It is specialized in R&D, manufacturing and sales of adsorption and separation polymer resins, equipments and customized solutions including support services. As the first and the only A-share listed company in Chinese Ion Exchange and Adsorption Resin Industry, Sunresin manufactures about 50,000 cubic meters of ion exchange and adsorption resins annually, and supplies customers with tens of adsorption and separation equipment.

Advantages and Disadvantages of Chelating Resins and Their Application Prospects(2020年)

seplite — 2020-08-04T10:19:49+0900

https://www.seplite.com/advantages-and-disadvantages-of-chelating-resins-and-their-application-prospects.html

Advantages and disadvantages of ion exchange chromatography as follow:

Advantages
Compared with small molecule chelating agents, chelating resins have the advantages of simple synthesis, low cost, large adsorption capacity, easy elution, less interference, good mechanical properties and it is extremely stable for acids, bases and various solvents. Compared with ion exchange resins, chelating resins have stronger binding ability and higher selectivity to metal ions. When chelating resins chelate with specific metal ions, there will be many special physical and chemical properties, which are widely known as catalysts, photosensitive materials and antistatic agents.

Disadvantages
It is strongly affected by PH fluctuations. It needs elution. Its selectivity to ions is not ideal and the cost is too high. The use of chelating resin to treat complex heavy metal ions has some limitations of ion exchange chromatography: because chelating resin can not leach complex heavy metal ions through organic matter, it will cause secondary pollution to the environment.

Applications
Purification of drinking water, environmental protection, hydrometallurgy, recovery of heavy metals, catalysts, separation and purification of various antibiotics, extraction of active ingredients of Chinese herbal medicine and other medicine, food, recycled products, etc.

Development Prospects
The design and synthesis of new chelating chromatography resins, the study of adsorption theory, and the application of chelating resins promote their application in practice.

Sunresin is an innovation oriented high-tech ion exchange resin china. It is specialized in R&D, manufacturing and sales of adsorption and separation polymer resins, equipments and customized solutions including support services. As the first and the only A-share listed company in Chinese Ion Exchange and Adsorption Resin Industry, Sunresin manufactures about 50,000 cubic meters of ion exchange and adsorption resins annually, and supplies customers with tens of adsorption and separation equipment.

Physical Condition of Resin Beads(2020年)

seplite — 2020-08-04T10:19:24+0900

https://www.seplite.com/advantages-and-applications-of-resin-beads.html

The particle size and physical properties of ion exchange resins have a great influence on its performance.

Density of resins
The density of resin during drying is called true density. The weight of wet resin per unit volume (even the voids between particles) is called apparent density. The density of resin is related to its crosslinking degree and the properties of exchange groups. Generally, the densities of resins with a high crosslinking degree are higher, those with strong acidity or alkalinity are higher than those with weak acidity or alkalinity, while those of macroporous resins are lower.

Resin particle size
Ion exchange resins are usually made into beads of small particles, and their size is also important. The finer the resin particles, the faster the reaction, but the finer the resistance of liquid through larger, need higher working pressure; especially the high viscosity of concentrated sugar liquid, this effect is more significant. Therefore, the size of the resin beads should be selected appropriately.
When resin beads are used, there are some changes, such as transfer, friction, expansion, and shrinkage. After long-term use, there will be a small amount of loss and breakage, so the resin should have higher mechanical strength and wear resistance. We have also done some research on this point in Sunresin, resin beads manufacturer. Generally, resins with a low crosslinking degree are more fragile, but the durability of resins depends more on the uniformity of the crosslinking structure and its strength. For example, macroporous resin with a high crosslinking degree has a stable structure and can resist repeated regeneration.

Sunresin is an innovation oriented high-tech sunresin new materials co ltd. It is specialized in R&D, manufacturing and sales of adsorption and separation polymer resins, equipments and customized solutions including support services. As the first and the only A-share listed company in Chinese Ion Exchange and Adsorption Resin Industry, Sunresin manufactures about 50,000 cubic meters of ion exchange and adsorption resins annually, and supplies customers with tens of adsorption and separation equipment.

Adsorbent For Special Target(2020年)

seplite — 2020-08-04T10:18:53+0900

https://www.seplite.com/adsorbent-for-special-target/

High-performance Polymeric Adsorbents for Special Target
Sunresin common adsorbents in different polar, could meet most plant extraction requirement, classified into three basic skeleton:
1. Styrene-divinylbenzene polymer----hydrophobic surfaces
2. Methacrylate polymer---both hydrophobic and hydrophilic surfaces
3. Polar polymer--hydrophilic surfaces
In addition, Sunresin has developed series adsorbents for special target, which show higher selective and less impurities. Most have been applied successfully for Herbal extraction and separation of active ingredients from plant liquors, such as flavones, polyphenols, proanthocyanidins (OPCs), alkaloid, etc.

Our Advantages
Each adsorbent for special target
Higher selection
Supporting Equipment & system
Successful EPC project cases

Typical Applications for Plant Extraction
Extraction of chlorogenic acid from Eucommia and honeysuckle
Extraction of anthocyanin from Cranberry and blackcurrants
Extraction of proanthocyanidins from grape seeds
Extraction, separation and purification of Stevia
Extraction of Gingko flavonoids, soy isoflavones
Extraction of tea polyphenols, effectively remove caffeine and improve EGCG and ECG content.
Extraction of alkaloids, amino acid and peptides
Specific resins for plant extracts

Category List
SEPLITE LXA 21 For Chlorogenic acid extraction
SEPLITE LXA860 For anthocyanin extraction
SEPLITE LXA10 For Roanthocyanidins extraction
SEPLITE LXA838 For Soy isoflavones extraction
SEPLITE LXA8 For Tea polyphenols extraction
SEPLITE LSD001 For Alkaloids extraction

Sunresin is an innovation oriented high-tech china resin manufacturers. It is specialized in R&D, manufacturing and sales of adsorption and separation polymer resins, equipments and customized solutions including support services. As the first and the only A-share listed company in Chinese Ion Exchange and Adsorption Resin Industry, Sunresin manufactures about 50,000 cubic meters of ion exchange and adsorption resins annually, and supplies customers with tens of adsorption and separation equipment.

Boc / Bzl Solid Phase Synthesis(2020年)

seplite — 2020-08-04T10:18:29+0900

https://www.seplite.com/bzl-solid-phase-synthesis.html

he Boc/Bzl (tert-butoxycarbonyl/ /benzyl) method is a classical peptide solid phase synthesis method in which Boc is used as a temporary bzl protecting group in combination with a benzylic semi-permanent side chain protecting group.

Boc is unstable to acid and is usually removed with 20% to 50% TFA.

The main strategy of the oc synthesis method is that the Boc which can be removed by TFA is an α-amino protecting group, and the side chain is protected by a benzyl alcohol. A Boc-amino acid derivative is covalently cross-linked to a Merrifield or M BH A resin during synthesis, Boc is removed by TFA, the free amino terminus is neutralized with triethylamine, and then the next amino acid is activated by DCC. Finally, the HF method or the TFM SA method is used for the deprotection.

Although the Boc method is gradually replaced by the Fm oc method, since the Boc-amino acid is easily crystallized, it is easy to be acid-decomposed, has stability, and is easy to store for a long time. It is not easy to produce side reactions during acid hydrolysis, and is stable to alkali hydrolysis and hydrolytic hydrolysis. The advantages of stable catalytic hydrogenation can not be ignored, and some aspects are worth learning and application.

Merrifleld et al. successfully synthesized bradykinin using Boc as a protective group for α-amino acids. Australian scientist M iranda et al. rapidly synthesized peptides and small proteins including the C-terminal fragment of H IV-1 protease (81-99) and the 88-residue protein CP10 in the "chemical selective ligation" method.

Brine Decalcification(2020年)

seplite — 2020-08-04T10:17:34+0900

https://www.seplite.com/brine-decalcification/

Brine Purification for Ion Membrane in Chlor-Alkali Industry
Brine used in the Chlor-alkali industry is electrolysed using ion membrane technology. The ion membranes have stringent limits in ppb level for alkaline earth metals in brine In order to keep effective membrane operations. So, SEPLITE® Chelating resins are used to control impurities at desired level after filtration step

Sunresin Brine Decalcification Solution
The typical chelating resins are based on polystyrene matrix, with weak acid group, in macro porous structure, cation exchange resins :

SEPLITE ® LSC710 - minodiacetate functional group in sodium form

SEPLITE ® LSC750 - Aminomethyl phosphonic acid functional group in sodium form

SEPLITE® Chelating Resins have unique porosity and surface area that gives excellent operating capacities. They could remove the harmful metal ions effectively, such as calcium Ca2+, magnesium Mg2+, strontium Sr2+, Barium Ba2+, Nickel Ni+, and protect the ion membrane and electrolyzer cell.

Characteristics of SEPLITE® LSC 750 and LSC 710
1. Strong Resistance to osmotic shock
Strong resistance to wear and penetrate, low wastage in ≤5% annual supplement, stable kinetics performance.
2. High operating capacity
Both resins show a high operating capacity for the removal of ions like Ca2+ ，Mg2+ ，Sr2+, resulting into a long cycle times.
3. Easy regeneration
Particle size in a narrow distribution leads a excellent regeneration operation kinetics performance
4. Extensive compatibility
Good compatibility for major electrolytic cell in market, likeAKCC Japan, Uhde, Chlorine engineers, AGC Japan,Blue staretc

Supporting Systems
Please find the details information from our Equipment & project!

Benzene Waste Gas VOCs Efficient Treatment and Recovery System Technology(2020年)

seplite — 2020-08-04T10:17:11+0900

https://www.seplite.com/benzene-wastegas-VOCs-efficient-treatment-and-reco.html

Benzene, toluene, xylene, trimethyl benzene, and other benzene chemical raw materials are often used as solvents or synthetic raw materials, applications in pesticides, paints, coatings, inks, printing, rubber solvents and other industries. Benzene organics are highly volatile, due to the volatilization of benzene substances in the production process, the VOCs in the exhaust gas often exceed the standard, which brings environmental protection issue to the relevant production enterprises. At the same time, it also causes economic losses to the production enterprises due to the volatilization of benzene raw materials.

Common treatment including activated carbon (carbon fiber) adsorption or RTO incineration. However, activated carbon (carbon fiber) adsorption has disadvantages such as low adsorption recovery rate, difficulty to meet export standards, frequent filler replacement, and a large amount of hazardous waste generation.Although RTO incineration can solve the problem of exhaust gas emission compliance, it cannot be recovered, resulting in waste of raw material resources and high energy consumption during incineration. Therefore, how to find the solution of the resource recovery of VOCs and the emission of exhaust gas has become the common expectation of the industry.

Based on the research and analysis of the molecular characteristics of benzene organic raw materials, Sunresin innovatively developed seplite® CT-10 high specific surface, high strength polystyrene macroporous adsorption resin, combined with the self-designed sepsolut® exhaust gas adsorption system device, can achieve High-efficiency adsorption and recovery of benzene waste VOCs, high processing accuracy (tail gas VOCs can be processed to less than 20 mg / m³), benzene volatiles recovery rate is as high as 99%, the treatment effect has been tested and industrialized by dozens of companies in different fields, running stable and reliable. Sunresin's special treatment resin and package system for waste gas VOCs provide a more cost-effective choice of benzene waste gas VOCs treatment for enterprises in related industries.

Advantages of Sunresin's resin and system package in benzene exhaust gas treatment:
1. Stable performance and low resin loss (used for more than five years under normal conditions, the annual replenishment rate is less than 10%).
2. Easy to desorb, the operating cost is much lower than the activated carbon or carbon fiber recycling process.
3. The processing precision is high, and the removal recovery rate is as high as 99%.
4. Goodwind resistance of the system with Spherical resin
5. Large processing flexibility and ability to withstand large fluctuations in air volume and concentration.

Process flow chart of benzene waste gas treatment by Sunresin system package:

Example of Sunresin's customer gas treatment scene:

Sunresin is an innovation oriented high-tech resin products ltd. It is specialized in R&D, manufacturing and sales of adsorption and separation polymer resins, equipments and customized solutions including support services. As the first and the only A-share listed company in Chinese Ion Exchange and Adsorption Resin Industry, Sunresin manufactures about 50,000 cubic meters of ion exchange and adsorption resins annually, and supplies customers with tens of adsorption and separation equipment.

Bee Honey Purification(2020年)

seplite — 2020-08-04T10:16:46+0900

https://www.seplite.com/bee-honey-purification/

Resin Honey Purification Technique Aimed at Antibiotics and Harmful Substances

Bee honey is made from the nectar collected by the bees in the hive. Honey is a delicious sweetener but also with a great medicinal value.

In modern society, due to the popularity of pesticides and the spread of antibiotics, the naturally collected honey will have some residues of pesticides and antibiotics, which seriously affects the use of honey. Many countries have also imposed strict regulations on pesticides and antibiotics residues in honey.

In order to solve the above problems, Sunresin honey processing resin is designed with unique structure and materials so that aimed substances like antibiotics, pesticides and HMF could be adsorbed when fully touching with honey liquor, the unique design and long application experiences make it a perfect technology option to remove those harmful substances from honey without any change, destruction or lost on the wanted sugar,protein,enzyme.etc.

In addition, the color value of honey is increasing, and the treated honey has better storage stability.

Typical Application for Ion Honey Process:
Remove various antibiotics, such as chloramphenicol, tetracycline, streptomycin, sulfonamide, sand star, nitrofuran
Remove various pesticide, such as paradichlorobenzene, omethoate,metamidophos
Remove fungicide, such as carbendazim
Remove HMF
Increasing the color value of honey
Better storage stability

Our Technology Advantages
Harmful substances removal
Compact Skid Mounted Unit
Lower cost for Investment and operation
Easy operation and maintenance
A long life working time

Basic Characteristics of Ion Exchange Resins(2020年)

seplite — 2020-08-04T10:16:15+0900

https://www.seplite.com/basic-characteristics-of-ion-exchange-resins.html

Basic Characteristics of Ion Exchange Resins
1. Appearance
Ion exchange resins are available in various colors such as yellow, brown, white, brown, black, and gray depending on the structure, group, ionic form, manufacturing process, etc., to meet the needs of different occasions in specific applications.
When the resin is contaminated, its color will also change fundamentally. The degree of color change is generally proportional to the degree of contamination of the resin and is difficult to reverse. Therefore, in the process of using the resin, it is necessary to pay attention to the change in color at any time to judge the degree of resin contamination.

2. Particle Size
The particle size and uniformity of the resin affects pressure drop and system operating speed.

3. Reversible Swelling
Ion exchange resins are polymers with different degrees of cross-linking, so the volume will vary under different conditions.
When the resin is in a dry state, it will rapidly expand when it meets water. Therefore, when the resin is dehydrated, it cannot be directly contacted with water, but is immersed in saturated saline solution to slow down the expansion speed and prevent cracking of the resin.
The Reversible Swelling is due to ion exchange, resulting in volume shrinkage and expansion. In general, for strong acid cation resin, the volume will swell from Na type to H type; while weak acid cation resin is on the opposite; for strong base anion resin, by the volume will expand from type Cl Converted to OH type, while weak base anion resin is on the opposite.
These data is important to design ion exchange system. The properties of ion exchange resins is excellent.

4. Moisture
The amount of equilibrium water is an inherent property of the resin, and different ionic forms lead to different moisture.

5. Density
Density and shipping weight
Shipping weight is used to calculate the loading and volume, including the porosity between beads. So, it is influenced by the particle size.
Density is specific gravity, not influenced by the particle size. It determines the sedimentation rate of the resin and the backwash expansion rate.it is important item for mixed bed resin.
Porosity: P＝1-d1/d1
Note:
P, Porosity;
d1,Shipping weight;
d2,density;

6. Total capacity
Total capacity, can reflect the inherent capacity of the resin, is a fixed value. In addition, there is work exchange capacity, which is an actual capacity in an operation. It is related to many field factors and is a variable.