HG/T 2166-1991 116 Weakly acidic acrylic acid cation exchange resin HG/T2166-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
116 Weakly Acidic Acrylic Cationic Exchange Resin
1 Subject Content and Applicable Model
HG 2166-91
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for 116 weakly acidic acrylic cation exchange resin.
This standard applies to 116 weakly acidic acrylic cation exchange resin with methyl acrylate as the skeleton and allyl succinate as the crosslinking agent.
2 Reference standards
Classification, naming and model of ion exchange resins
G 1631
GB5475 Sampling method of ion exchange resins
GB5476 Pretreatment method of ion exchange resins GB 5757
GB 5758
GB 8144
GB 8330
GB 8331
GB 11991
Determination method of water content of ion exchange resin
Determination method of particle size distribution of ion exchange resinDetermination method of exchange capacity of cation exchange resinDetermination method of wet true density of ion exchange resinDetermination method of wet apparent density of ion exchange resinDetermination method of transformation expansion rate of ion exchange resinGB/T12598Determination method of strength of ion exchange resinMixed grinding method3 Product model and main use
116 The model of weakly acidic acrylic acid cation exchange resin is compiled according to GB 1631. This product is mainly used for industrial water treatment, industrial wastewater treatment and recovery of precious metals. 4 Technical requirements
4.1 Appearance
Light yellow or light pink transparent spherical particles. 4.2 Product type
Hydrogen 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, %
Total exchange capacity by mass, mmol/g
Total exchange capacity by volume, mmol/mL
Number density g/mL
Wet true density·g/mL
Transformation conversion efficiency (H+Na), %
Particle size, %
0.315~1.25mm
Less than 0.315mm
Effective particle size, mm
Uniformity coefficient
Permeation roundness, %
5 Test method
5.1 Determination of appearance
Visual inspection.
5.2 Sample pretreatment
Pretreatment shall be carried out according to the method specified in GB 5476. 5.3 Determination of water content
G 2166-91Www.bzxZ.net
Superior products
The method specified in GB 5757 shall be used for determination. 5.4 The method specified in GB8144 shall be used for determination of mass total exchange capacity and volume total exchange capacity. 5.5 Determination of apparent density
The method specified in GB8331 shall be used for determination. 5.6 Determination of wet true density
The method specified in GB8330 shall be used for determination. 5.7 Determination of transformation expansion rate
The method specified in GB11991 shall be used for determination. 5.8 Determination of particle size
First-class product
45~553
0.68~0.78
1.14~1.18
0.40~0.60
Qualified product
Use sieves with apertures of 0.315mm and 1.25mm, and sieve using the method specified in GB5758. Calculate the following according to formula (1) and formula (2):
V. -V,-V
Where: P,—resin particle size of sample with particle size of 0.315～1.25mm.%, 322
(2)
sample volume, mL;
HG2166-91
V,—resin volume of sample with particle size less than 0.315mm, mL; V——resin volume of sample with particle size greater than 1.25mtm, ml.: P2——resin particle size of sample with particle size less than 0.315mm, %: 5.9 Determination of effective particle size and uniform coefficient
The determination is carried out by the method specified in GB5758. 5.10 Determination of ball penetration rate
The sample with particle size of 0.50~～0.63tnl is screened out by the method specified in GB5758, and then the determination is carried out by the method specified in GB/T12598.
6 Inspection rules
6.1 Products are batched per lot
6.2 Sampling shall be carried out according to 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 guaranteed that all products produced meet the technical requirements specified in this standard.
6.4 This standard covers appearance, water content, mass exchange capacity, volume exchange capacity, wet density, transformation expansion rate, particle size less than 0.315mm and infiltration ball rate as factory inspection items: wet true density, particle size of U.315~1.25mn1, effective particle size and uniformity coefficient are random inspection items, and random inspection shall be carried out at least once a month. Type inspection is carried out in accordance with the provisions of 6.6.1 in (B1.3). 6.5 The user has the right to inspect the received products in accordance with the provisions of the standard. If re-inspection is required, it should be reported to the manufacturer within 3 months of receiving the product.
6.6 If a certain technical requirement in the inspection result does not meet the requirements of this standard, samples should be taken from twice the amount of packaging of the batch of products for re-inspection, and the grade should be determined based on the re-inspection results.
6.7 When the supply and demand parties have objections to the product quality, the two parties shall negotiate to resolve the dispute 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 Inspection report. Each package should have clear and solid markings indicating the product name, model, grade, batch net weight, production date and manufacturer's name.
7.2 Packaging
The product should be packaged in plastic barrels or fiberboard barrels lined with plastic bags. The net weight of each barrel is 25kg. Each packaging barrel1 should be accompanied by a certificate of conformity.
7.3 Transportation
During transportation, this product should be kept in an environment of 5-40°C to avoid overcooling or overheating, and be careful not to cause the resin to lose water. This product is non-dangerous.
7.4 Storage
This product has a storage period of 2 years under the temperature conditions specified in 7.3. Years. After the storage period, it can be retested according to the provisions of this standard. If the retest results still meet the requirements of this standard, it can still be used. Additional remarks:
This standard is 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 Plastic Standardization Technical Committee. The Nanjing Resin Factory is responsible for drafting.
This standard was drafted by Zhang Shuhua, Jianying, Gu Yunzhi, 323
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