Macroporous strong acidic cation exchange resin gold absorbing resin with high quality and low cost

NegotiableUpdate on 05/06

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Overview

Macroporous strongly acidic cation exchange resin gold absorbing resin is of high quality and low cost. After that, use 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. The steps in the preprocessing method of $r $n are the same as those in the resin preprocessing 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.

Product Details

Macroporous strong acidic cation exchange resin gold absorbing resin with high quality and low costProfessional 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, with dozens of models including 001 × 7, 001 × 8, 732, 717, 201 × 7, 201 × 4, D001, D201, D301, D113, D101, H103, D403, D408, etc

[Reference indicators for use]

1. PH range: 0-14

2. Allowable temperature (℃): Sodium type ≤ 120 Hydrogen type ≤ 100

3. Expansion rate:% (Na+→ OH+) ≤ 10

4. Industrial resin layer height: m 1.0-3.0

5. Regeneration solution concentration:% HCl: 2-5 H2SO4: 1-2; 2-4

6. Regenerator dosage (by calculation): kg/m3 Wet resin HCL (industrial) 40-100H2SO4 (industrial) 75-150

7. Regeneration fluid flow rate: m/h 5-8

8. Regeneration contact time: minute: 30-60

9. Positive washing flow rate: m/h: 10-20

10. Washing time: minute: about 30

11. Operating flow rate: m/h, 15-25 high flow rate: 80-100

12. Work exchange capacity: mmol/l (wet resin) ≥ 1300

Macroporous strong acidic cation exchange resin gold absorbing resin with high quality and low costThe regeneration method of softened water resin is an important part of ion exchange water treatment. There are also many factors that affect the regeneration of Jinda resin, such as the regeneration method, the type, purity, and dosage of the regeneration agent, the concentration, flow rate, and temperature of the regeneration solution. To achieve good regeneration results, adjustment tests must be conducted to determine optimal regeneration conditions.
Jinda Softened Water Resin
1. Regeneration method
The regeneration method of Jinda softened water resin can be divided into three types based on the flow direction of the regeneration solution and the direction of the water flow during operation: co current, convection, and diversion.
Downstream regeneration refers to a regeneration method in which the flow direction of the regeneration solution is consistent with the direction of the water flow during operation, usually flowing from top to bottom.
Convection regeneration refers to the flow direction of the regeneration solution being relative to the direction of the water flow during operation. Traditionally, the water treatment process where the water flows downwards and the regeneration liquid flows upwards during operation is called counter current regeneration process.
Jinda Softened Water Resin
2. Varieties and purity of regenerants
It is generally believed that the regeneration effect of hydrochloric acid is better than that of sulfuric acid, and the cost of sulfuric acid regeneration is lower than that of hydrochloric acid. The high purity and low impurity content of the rejuvenator result in a high degree of regeneration of the Jinda softened water resin, especially with a greater impact on the Yinjinda softened water resin.
3. Regeneration agent dosage
The amount of regenerant used is an important factor affecting regeneration, and its concept is the amount of regenerant used per unit volume of Jinda softened water resin, measured in kg/m3 (Jinda softened water resin) or g/L (Jinda softened water resin). Another commonly used indicator is the specific consumption of regenerant, which refers to the ratio of the amount of regenerant input to the working exchange capacity of the obtained Jinda softened water resin. Another expression is the consumption of regenerant, which is the estimated amount of pure regenerant required to obtain a unit of working exchange capacity, expressed in g/mol.
In theory, 1mol of rejuvenator should restore the exchange capacity of Jinda softened water resin to 1mol. However, in reality, most regeneration reactions can only proceed to the equilibrium state of ion exchange chemical reactions. Using only the theoretical amount of rejuvenator to regenerate Jinda softened water resin cannot restore its exchange capacity, so the dosage must exceed the theoretical amount.
Jinda Softened Water Resin
4. Temperature and flow rate of Jinda softened water resin regeneration solution
Raising the temperature of the regeneration solution can improve the regeneration degree of Jinda softened water resin, but the regeneration temperature cannot exceed the allowable operating temperature of Jinda softened water resin. Generally, strong acidic Yangjinda softened water resin does not require heating when regenerated with hydrochloric acid. The regeneration temperature of the strong alkaline type I Yinjinda softened water resin is 35-50 ℃. The suitable temperature for the regeneration solution of strong alkaline type II Yinjinda softened water resin is 35 ± 3 ℃.
The flow rate of the regeneration solution affects the contact time between the regeneration solution and Jinda softened water resin, and is generally recommended to be 4-8m/h. The flow rate of the regeneration solution for counter current regeneration should ensure that the resin layer of Jinda softened water does not become disordered. When the temperature of the regeneration solution is very low, it is not advisable to increase the flow rate.
Principle and Maintenance of Jinda Softened Water Resin Previous: Basic Explanation and Replacement Techniques of Jinda Softened Water Resin

A device for separating anionic and cationic resins, involving a device for separating mixed anionic and cationic resins. Its characteristic is that its structure includes a resin separation box and a resin receiving box; There is an anion resin discharge pipe located in the middle of the side wall of the resin separation box; The resin receiving box is equipped with a horizontal grid board on the upper part of the box body, and a nylon filter screen is installed on the grid board. A drainage pipe is installed at the bottom of the box body. The purpose of this utility model is a cation anion resin separation device, which has a simple structure, can effectively ensure separation purity, and effectively guarantee the personal safety of operators.