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Langfang Sennate Chemical Co., Ltd
D301 weakly alkaline anion exchange resin
NegotiableUpdate on 05/06
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Overview
The steps in the pretreatment method of d301 weakly basic anion exchange resin are the same as those in the pretreatment method of cation resin; Then soak in 5% HCl for 4-8 hours, drain the acid solution, and wash with water until neutral; Then soak in a 2% -4% NaOH solution for 4-8 hours, drain the alkaline solution, and wash with clean water until neutral for later use.
Product Details
D301 weakly alkaline anion exchange resin news flash professional production: anion and cation exchange resin, macroporous adsorption resin, softened water resin, mixed bed MB resin, 18 megaohm ultra pure water polishing resin, wire cutting slow wire resin, sewage decolorization resin, electroplating wastewater nickel and chromium removal resin, iron, copper, phosphorus, boron, and heavy metal removal resin, acid recovery resin, chelating resin, food grade resin, alum extraction resin, gold absorption resin, silver extraction resin, strong acid, strong alkali, weak acid, weak alkali. There are dozens of models in four categories: 001 x7、001x8、732、717、201x7、201x4、D001、D201、D301、D113、D101、H103、D403、D408 wait
Product Technical Standard: HG/T2165-91 DL519-93 SH2605.09-1997
This product is an ion exchange resin with a tertiary amine group [- N (CH3) 2] on a macroporous styrene divinylbenzene copolymer. It has weak alkalinity and can be used in acidic and near acidic environments
The resin effectively exchanges inorganic acids and silicate ions in neutral media, and can adsorb impurities with larger molecular sizes and be used in non-aqueous solutions. It has high regeneration efficiency and alkaline properties
Advantages include low water consumption, large exchange capacity, strong resistance to organic pollution and antioxidant capacity, and good mechanical strength.
This product is equivalent to Amberlite IRA-93 from the United States, Lewatt MP-60 from Germany, Diaion WA-30 from Japan, Duolite A305 from France, and AH-89x from the former Soviet Union
77II, Zerolite MPH from the UK, equivalent to China's old models: D354, D351, 710, D370.
Usage: This product is mainly used for the preparation of pure water and high-purity water, for use in anion double bed and anion double bed systems. It is particularly suitable for water sources with high salt content, and can protect strong alkali anion resins from organic pollution, as well as for the treatment and recovery of chromium containing wastewater from sugar solution decolorization.
Packaging: Woven bag, lined with plastic bag. Plastic bucket lined with plastic bag.
Reference indicators for use:
1. PH range: 0-9
2. Allowable temperature (℃): ≤ 100
3. Expansion rate:% (OH - → Cl -) ≤ 35
4. Industrial resin layer height: m 1.0-3.0
5. Regeneration solution concentration:% NaOH: 2.0-4.0
6. Regenerator dosage (by calculation), kg/m3 Wet resin: NaOH (industrial): 40-70
7. Regeneration fluid flow rate: m/h 4-6
8. Regeneration contact time: minute: 30-50
9. Positive washing flow rate: m/h: 15-25
10. Washing time: minute: about 25
11. Operating flow rate: m/h, 15-25
12. Work exchange capacity: mmol/l (wet resin) ≥ 950 or adsorption capacity for hexavalent chromium g/l (wet resin) ≥ 75
Main performance indicators:
| indicator name | D301 | D301FC | D301SC |
| Full exchange capacitymmol/g≥ | 4.8 | ||
| Strong functional group capacitymmol/g≥ | 1.0 | ||
| Volume exchange capacitymmol/ml≥ | 1.4 | ||
| water content% | 48-58 | ||
| Wet visual densityg/ml | 0.65-0.72 | ||
| Wet true densityg/ml | 1.03-1.06 | ||
| granularity% | (0.315 | (0.45 | (0.315 |
| Effective particle sizemm | 0.40-0.70 | ≥0.5 | 0.35-0.50 |
| Uniformity coefficient≤ | 1.60 | 1.60 | 1.40 |
| Post-grinding sphericity ratio% ≥ | 95 | ||
| Transformation inflation rate%≤ | 28 | 30 | 28 |
| appearance | Milky white or light yellow opaque spherical particles | Milky white or light yellow opaque spherical particles | Milky white or light yellow opaque spherical particles |
| Factory type | free amine | free amine | free amine |
| purpose | universal | Floating bed | bunk bed |
1、 Transportation and storage of resin:
Ion exchange resin contains a certain amount of moisture, which should be maintained as much as possible during transportation and storage. If the resin loses water during storage, it should be used first
Soak in concentrated salt water (8-10%) for 1-2 hours, then gradually dilute. Do not directly put it in water to prevent the resin from rapidly expanding and breaking. During the storage or transportation of resin,
It should be kept in a temperature environment of 5-40 ℃ to avoid overcooling or overheating, which may affect the quality. If there is no insulation equipment in winter, the resin can be stored in saline solution
The temperature can be determined based on the air temperature.
2、 Pre treatment of new resin:
New resins often contain solvents, substances that have not participated in polymerization reactions, and small amounts of low polymers, and may also adsorb heavy metal ions such as iron, aluminum, and copper. When resin is mixed with water, acid
When alkali or other solutions come into contact, the soluble impurities mentioned above will be transferred into the solution, polluting the effluent quality in the early stages of use. So, the new resin needs to be pre treated before being put into operation.
1. Pre treatment of Yang resin
The pretreatment steps for cation resin are as follows:
Firstly, use saturated saline solution, which is approximately twice the volume of the treated resin. Soak the resin in the saline solution for 18-20 hours, and then drain the saline solution,
Rinse with clean water until the discharged water does not turn yellow;
Next, use a 2% -4% NaOH solution with the same amount as above, soak in it for 2-4 hours (or clean with a small flow rate), drain the alkaline solution, and rinse the resin until the water is drained
Near neutral;
Afterwards, use a 5% HCl solution with the same amount as above, soak for 4-8 hours, drain the acid solution, and drift with clean water until neutral for later use.
2. Pre treatment of Yin Resin
The steps in its pretreatment method are the same as those in the cation resin pretreatment method; Then soak in 5% HCl for 4-8 hours, drain the acid solution, and wash with water until neutral; Then soak in a 2% -4% NaOH solution for 4-8 hours, drain the alkaline solution, and wash with clean water until neutral for later use.
Ion exchange resins play a crucial role in the modern sugar industry. Many sugar factories around the world produce refined sugar and high-end edible syrup, most of which use ion exchange resins to decolorize and purify the sugar solution. In the past, traditional bone charcoal refining sugar factories also gradually shifted to using ion exchange resins.
Ion exchange technology has a long history, and certain natural substances such as zeolite and sulfonated coal made from coal can be used as ion exchangers. However, with the rapid development of modern organic synthesis industry technology, many high-performance ion exchange resins have been researched and produced, and various new application methods have been developed. Ion exchange technology has developed rapidly and is widely used in many industries, especially high-tech industries and scientific research fields. In recent years, there have been hundreds of resin varieties produced domestically and internationally, with an annual output of hundreds of thousands of tons.
In industrial applications, the advantages of ion exchange resins are mainly large processing capacity, wide decolorization range, high decolorization capacity, ability to remove various ions, repeated regeneration and use, long working life, and low operating costs (although the initial investment cost is relatively high). Various new technologies based on ion exchange resins, such as chromatographic separation, ion exclusion, electrodialysis, etc., have unique functions and can perform various special tasks that are difficult to achieve with other methods. The development and application of ion exchange technology are still rapidly advancing.
The application of ion exchange resin is a key research topic in the sugar industry both domestically and internationally in recent years, and is an important symbol of modernization in the sugar industry. The application of membrane separation technology in the sugar industry has also been widely studied.
Ion exchange resins are made using organic synthesis methods. The commonly used raw materials are styrene or acrylic acid (ester), which are polymerized to form a three-dimensional network structure skeleton, and then different types of chemically active groups (usually acidic or basic groups) are introduced into the skeleton to make it.
Ion exchange resin is insoluble in water and general solvents. Most of them are made into granules, while some are made into fibers or powders. The size of resin particles is generally in the range of 0.3-1.2mm, with most ranging from 0.4-0.6mm. They have high mechanical strength (firmness), stable chemical properties, and a long service life under normal conditions.
Ion exchange resin contains one (or several) chemically active functional groups, which are exchange functional groups that can dissociate certain cations (such as h or na) or anions (such as oh - or cl -) in aqueous solution, while adsorbing other cations or anions originally present in the solution. The ions in the resin exchange with the ions in the solution, thereby separating the ions in the solution.
The types of chemically active groups in resins determine their main properties and categories. Firstly, it can be divided into two categories: cationic resin and anionic resin, which can respectively exchange ions with cations and anions in solution. Cationic resins are divided into strong acidic and weak acidic categories, while anionic resins are divided into strong alkaline and weak alkaline categories (or further divided into medium strong acid and medium strong alkaline categories).
Ion exchange resin can be divided into styrene resin and acrylic resin according to the type of matrix, and can be divided into gel type and macroporous type according to the physical structure of resin.
There are many varieties of ion exchange resins, which have different functions and characteristics due to their chemical composition and structure, and are suitable for different purposes. The appropriate type and variety of resin should be selected according to the process requirements and the properties of the material.
The present invention relates to an ion exchange membrane comprising a cation exchange resin material and a polymer material mixed with acidic functional groups in the cation exchange resin material.
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