HG/T 2165-1991 D301 Macroporous Weakly Basic Styrene Anion Exchange Resin HG/T2165-1991 Standard Download Decompression Password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
D301 Macroporous Weakly Basic Styrene Anion Exchange Resin
1 Subject Content and Scope of Application
HG 2165-91
This standard specifies the technical requirements, test methods, inspection rules and requirements for marking, packaging, transportation and storage of D301 weakly basic styrene anion exchange resin.
This standard applies to D301 macroporous weakly basic styrene anion exchange resin with a particle size of 0.315 to 1.25 mm and tertiary amine groups as the main active groups.
2Reference standards
GB1631
GB5475
GB 5476
GB5758
GB5759
GB5760
GB8330
GB8331
GB 11991
Classification and naming of ion exchange resins and models
Sampling method of ion exchange resins
Pretreatment method of ion exchange resins
Measurement method of particle size distribution of ion exchange resinsMeasurement method of water content of hydroxyl type anion exchange resinsMeasurement method of exchange capacity of anion exchange resinsMeasurement method of wet true density of ion exchange resinsMeasurement method of wet apparent density of ion exchange resinsMeasurement method of transformation expansion rate of ion exchange resinsGB/T12598Measurement method of strength of ion exchange resinsInfiltration method3Product models and main uses
D301The model of macroporous weakly alkaline styrene anion exchange resin is compiled according to GB1631. This product is mainly used for water treatment.
4Technical requirements
4.1Appearance
Milky white or light yellow opaque spherical particles. 4.2Factory type
Free amine type.
4.3 Physical and chemical properties
The physical and chemical properties should meet the technical indicators specified in the table. Approved by the Ministry of Chemical Industry of the People's Republic of China on November 18, 1991 and implemented on May 1, 1992
Water content, %
Mass total exchange capacity, mmol/g
Volume total exchange capacity, mmol/mL
Wet apparent density, g/mL
Wet true density, g/mL
Particle size, %
0.315~1.25mm
Less than 0.315mm
Effective particle size, mm
Uniformity coefficient
Permeation roundness, %
Test method
5.1 Appearance
Visual inspection.
Sample pretreatment
Pretreatment is carried out by the method specified in GB5476. 5.3 Determination of water content
Determination is carried out by the method specified in GB5759. HG 2165-91
5.4 Determination of mass total exchange capacity and volume total exchange capacity5.4.1 Determination of mass total exchange capacity
Determination is carried out by the method specified in GB5760. 5.4.2 Calculation of volume total exchange capacity
Volume total exchange capacity is calculated according to formula (1):
Superior product
Qy-Qw . p(X) ........
Where: Qv volume total exchange capacity, mmol/mL, Qw mass total exchange capacity, mmol/g
p——wet apparent density, g/mL,
X——water content, %.
5.5 Determination of wet apparent density
The determination shall be carried out by the method specified in GB8331. 5.6 Determination of wet true density
The determination shall be carried out by the method specified in GB8330. 5.7 Determination of particle size
Qualified products
0.65~0.72
1.03～1.07
0. 45~0.70
medium---ed.
(1)
Use sieves with apertures of 0.315mm and 1.25mm, and sieve according to the method specified in GB5758. According to formula (2) and formula (3), P, =
Vo-V,--V
(2)
(3)
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HG 2165— 91
Wherein: --- Sample particle size is 0.315~1.25mm resin particle size, %; V—sample volume, ml.; Vl—sample volume of resin with particle size less than 0.315mm, ml.; V2—sample volume of resin with particle size greater than 1.25mm, ml; Sample particle size of resin with particle size less than 0.315mm, %. Pz
5.8 Determination of effective particle size and average coefficient
The method specified in GB5758 is used for determination. 5.9 Determination of infiltration and grinding ball rate
The sample with size of 0.50~~0.63mm is screened out by the method specified in GB5758, and then the method specified in GB/T12598 is used for determination.
6 Inspection rules
6.1 Each batch of products is one kettle.
6.2 Sampling shall be carried out in accordance with the method specified in GB5475. 6.3 Each batch of products must be inspected by the quality inspection department of the manufacturer, and it is ensured that all products leaving the factory meet the technical requirements specified in this standard.
6.4 In this standard, appearance, water content, total exchange capacity by mass, total exchange capacity by volume, wet apparent density and infiltration ball rate are factory inspection items; wet true density, particle size and effective particle size are sampling inspection items, uniformity coefficient, superior products are factory inspection items, first-class products and qualified products are sampling inspection items. Sampling inspection items shall be conducted at least once a month. Type inspection shall be carried out in accordance with the provisions of 6.6.1 of GB1.3. 6.5 The user unit has the right to inspect the received products in accordance with the provisions of this standard. If re-inspection is required, it shall be submitted to the manufacturer within 3 months of receiving the product.
6.6 If a technical requirement in the inspection result does not meet the provisions of this standard, re-sampling shall be conducted from twice the amount of packaging of the batch of products, and the grade shall be determined by the re-inspection results.
6.7 When the supply and demand parties have any disagreement on the product quality, the two parties shall negotiate to resolve it or the statutory quality inspection department shall conduct arbitration. 7 Marking, packaging, transportation, storage
7.1 Marking
Each batch of products shall have a quality inspection report. Each package shall have a clear and firm mark indicating the product name, model, grade, batch number, net weight, production date and manufacturer name. 7.2 Packaging
The product shall be packaged in a container lined with a plastic bag or a woven bag, and a certificate of conformity shall be attached to each package. 7.3 Transportation
During transportation, this product shall be kept in an environment of 5 to 40°C, avoid overcooling or overheating, and take care not to dehydrate the resin. This product is a non-dangerous product.
7.4 Storage
The storage period of this product is 2 years under the temperature conditions specified in Article 7.3. If the storage period is exceeded, retesting can be carried out in accordance with the provisions of this standard. If the retesting results still meet the requirements of this standard, it can still be used. 1041wwW.bzxz.Net
HG2165-91
Appendix A
D301 Transition expansion rate of macroporous weakly basic styrene-based anion exchange resin (reference)
A1 The transition expansion rate of this product from free base type to chloride type is less than or equal to 28%. A2 The test method adopts the method specified in GB11991. Additional notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Plastic Resin Products Branch (SC4) of the National Plastics Standardization Technical Committee. This standard was drafted by Zhengguang Chemical Factory, Yuhang County, Zhejiang Province. The main drafters of this standard are Wu Chongzhi, Zhu Jiuhua, and Wang Ying. 1042
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