This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of mixed rare earth chlorides. This standard applies to mixed rare earth chlorides made from rare earth ore by chemical and extraction methods. It is used as a raw material for the production of single rare earth compounds, petroleum cracking catalysts, mixed rare earth metals, battery-grade mixed rare earth metals and various grouped rare earth concentrates. It can also be used in the fields of chemical industry, textile, agriculture, etc. GB/T 4148-2003 Mixed rare earth chlorides GB/T4148-2003 standard download decompression password: www.bzxz.net

This standard is a revision of G/T1128-1 mixed chlorinated clay. Compared with GB/T41481995, this standard has the following changes: the corresponding relationship between the digits and the letters is added, the digits are added: the "liquid slurry" brand is added! The "mixed chlorinated clay" two brands are added, the total radioactive activity of solid products is adjusted from 7.4×10Hn/k to: x10/g, this standard is issued by the Office of Soil and Soil of the National Development and Reform Commission. This standard is under the jurisdiction of the National Rare Earth Standardization Technical Committee, and the main drafters of the standard are: Gao Zongde, Ying Zhongyi. This standard also stipulates that the previous versions of the standard replaced by this standard are: GB/T 414819B4, GB/T4148
GB/T4148—2003
1 Scope
Mixed rare earths
B/4148—2003
This standard stipulates the requirements for mixed rare earths, testing methods, packaging, transportation and storage, and will delete the specifications and mark. This standard is suitable for rare earth chlorides prepared by chemical and benzene methods with rare earth as source particles, and is used as non-single-metal composite cracking catalyst, composite rare earth gold screen, electric mixed rare earth metals and various grouped single materials. It is also used in chemical, textile, agricultural and other industries.
2 Normative referenced standards
The following documents become the terms of this standard through reference in this standard. All the cited documents of the industry date and all their subsequent versions (excluding the contents that are in error) are not applicable to this standard. However, according to the agreement reached on this standard, the new versions of these documents may be used. All referenced documents not specified in this standard shall apply to the latest version of this standard, GB/T8173 - Specification for the revision of rare earth nitrate for agricultural use; GB/T1269 - Analysis method for chemical impurities in rare earth nitrate and its oxides; GB/T164B1 - Analysis method for rare earth chloride, magnetic field and other natural gas impurities; 3.1 Chemical composition; The brand and chemical composition of the mixed base chemical process shall be as specified in Table 1. If there are special requirements for the product, both parties can note it in the contract:
3.2 External appearance
The product is red crystals with a block diameter of less than 10cm. The product should be clean and no impurities can be seen by the naked eye. The body of the product is transparent brown. Please make sure it is clean, especially impurities and sediments visible to the naked eye. 3.3 Total radioactivity
The total radioactivity of the solid product is not much different from the total radioactivity of the solid product. The total radioactivity is 0.3×1m/kg. 5×1013m/T..
GR/T4148--2003
Teaching production number
School transfer engineer
Rare earth natural material
Chemical or chemical
Fraction 3/%
Water-free
1315454
SH,CT
151545B
Salt 2.5
191516
Total amount 6 /E.
d.d1 g.1.
, where the numbers in the table represent the additives, chemical test materials and the test results. 4 Test methods
1. 5.~. 3
CRPCI:
4.1 Chemical composition (except F () and 2) shall be analyzed according to the method specified in GB/T16481. 4.2 Thermal analysis of the content of the product shall be carried out according to the method specified in GB/T12G91. 4.3 The inspection of the value of the product shall be carried out according to the method specified in GB/T12G91. 4.4 Appearance measurement inspection: the block diameter shall be the same as the plate: 4.5 The inspection of the total surface area of ​​the product shall be carried out according to the method specified in GS958. 4.6 The value of the product shall be selected according to the method specified in GB/T8170. 5 Inspection specificationsWww.bzxZ.net
5. 1 Inspection and acceptance
6120-1
5.1.1 The product shall be inspected by the supplier's technical inspection department to verify that the product quality meets the requirements of this standard and a quality certificate shall be issued. 2
CB/T4148—2003
5.1.2 The purchaser shall inspect the received products according to the requirements of this standard. If the inspection results do not meet the requirements of this standard, the purchaser shall raise the issue within 1 month from the date of receipt of the product and the supplier and the purchaser shall resolve the issue through negotiation. If arbitration is required, the arbitration shall be conducted jointly by the purchaser and the buyer. 5.2 Batches
Products shall be submitted for acceptance and each batch shall consist of products of the same brand. 5.3 Inspection items
Each batch of products shall be subjected to chemical composition testing. , appearance inspection, total radioactivity specific activity data will be provided according to user requirements. 5.4 Sampling and sample preparation
5.4.1 Take two portions of 10gmL~.2UCmL from the liquid level of the bulk product in the tank and put them into a dry and clean plastic bottle with a tightly closed lid. 5.4.2 For solid products, proceed as specified in Table 2 and take 0.5kg~1.0k from the bag (). After breaking the valve hook, use a quartz crystal to reduce it to the required volume of the sample, and immediately put it into the sample bottle (stable) with a sealed lid at the bottom. Table 2
Take details (letter) amount
5.5 Inspection result judgment
6~·13
11~4021NC1~10.101~153151 26-2005i7
When the results of chemical composition and total radioactive specific activity analysis are inconsistent with the standards, double samples from the batch of products shall be retested on the same day. If they are still unqualified, the batch of products shall be judged as unqualified. 6 Marking, packaging, transportation and storage
6.1 Marking
Each outer packaging (bag) shall be printed with the manufacturer's name, trademark, brand number, batch number, production license number, net weight, weight, factory date and expiration date marks or words. All products shall have the "solid chemical" logo on them. 6.2 Packaging
The inner packaging of solid products shall be plastic bags or woven bags with inner sealing. The outer packaging The packaging is woven packaging or cupboard, sealed. 6.3 Return and storage
6.3.1 Solid products should be transported and stored under strict control, stored in dry places, and not exposed to the air. 6.3.2 Liquid products should be stored in special acid-resistant storage boxes, which are strictly prohibited from entering objects and water. 6.4 Quality certificate
Each batch of products is accompanied by a quality certificate. It should indicate: supplier name, address, delivery point
b Product name and brand:
Batch number:
) Net weight and weight:
Analysis and inspection results and supplier's technical supervision department stamp:
Date (or packaging date);
Standard number.
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