HG/T 2675-1995 Phosphate rock for calcium magnesium phosphate fertilizer HG/T2675-1995 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2675—1995
Phosphate Rock for Calcium Magnesium Phosphate Fertilizer
Published on April 2, 1995
Ministry of Chemical Industry of the People's Republic of China
Implemented on January 1, 1996
WHG/T2675—1995
This standard has revised ZB/TD51003—86 "Phosphate Rock for Calcium Magnesium Phosphate Fertilizer". The principles of this revision are to give full consideration to the use requirements, closely combine with the actual situation, reasonably use national resources, promote technological achievements, improve economic benefits, achieve advanced technology, reasonable economy, convenient use, and coordinate with relevant standards. In this revision, the classification of the previous version is adjusted according to GB/T12707-91 "Guidelines for the Classification of Industrial Product Quality", divided into three levels, and some control items are adjusted. R2O replaces Fe2Os, and MgO items are added to make it more in line with production practice. Necessary adjustments are made to various technical indicators based on process requirements, combined with domestic resource conditions, production status and opinions of all parties; and notes are added; the compilation rules are in accordance with GB/T1.11993.
This standard replaces the original professional standard ZB/TD51003-86 of the People's Republic of China from the date of implementation. This standard is proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Chemical Mining Design Institute of the Ministry of Chemical Industry. The responsible drafting unit of this standard: Chemical Mining Design Institute of the Ministry of Chemical Industry. Participating drafting units of this standard: Jinhe Phosphate Mine, Kaiyang Phosphate Mine Mining Bureau, Yunnan Phosphorus Chemical Industry (Group) Company, Jingxiang Phosphorus Chemical Industry Company, Yichang Phosphorus Chemical Group Company, Xinyang Phosphate Fertilizer Plant, etc. The main drafters of this standard are Wang Heping, Zhao Zhiquan and Wang Hailiang. This standard was first issued in August 1986.
This standard is entrusted to the Chemical Mining Design and Research Institute of the Ministry of Chemical Industry for interpretation. I
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Chemical Industry Standards of the People's Republic of China
Phosphate ore for calcium magnesium phosphate fertilizer
This standard specifies the technical requirements, test methods and inspection rules for phosphate ore for calcium magnesium phosphate fertilizer. This standard is applicable to the production of phosphate ore for calcium magnesium phosphate fertilizer by blast furnace method. 2 Referenced Standards
HG/T2675—1995
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1250-89 Methods for expressing and determining limit values ​​GB/T1868-1995 Methods for sampling and sample preparation of phosphate rock and phosphate concentrate GB/T1871.1-1995 Determination of phosphorus pentoxide content in phosphate rock and phosphate concentrate - Quinoline phosphomolybdate gravimetric and volumetric methods GB/T1871.2-1995 Determination of iron oxide content in phosphate rock and phosphate concentrate - Volumetric and spectrophotometric methods GB/T1871.3-1995 1995 Determination of aluminum oxide content in phosphate rock and phosphate concentrate GB/T1871.5—1995 Determination of magnesium oxide content in phosphate rock and phosphate concentrate Volumetric method and spectrophotometric method
Flame atomic absorption spectrometry and volumetric method
GB/T2007.7—87 General rules for sampling and sample preparation of bulk mineral products Particle size determination method Manual sieving method 3 Requirements
The technical indicators of phosphate rock for calcium magnesium phosphate fertilizer should meet the requirements of Table 1. Table 1 Technical indicators
Phosphorus pentoxide (P205) content, %
Magnesium oxide (MgO) content, %bZxz.net
R20s content, %
Particle size, mm
1The content of each component is calculated on a dry basis.
Superior products
First-class products
Qualified products
15~100 (less than 15mm and not more than 5%)
2 Phosphorus pentoxide content greater than or equal to 19.0%, 18.0%, 17.0%, and corresponding magnesium oxide content greater than or equal to 3.0%, 5.0%, 7.0% can be used as qualified products.
3 The technical indicators of phosphate ore used in electric furnace method, cyclone furnace method, etc. can be agreed by both the supply and demand parties with reference to this standard 4 Test methods
4.1 The preparation of phosphate ore analysis samples for calcium magnesium phosphate fertilizer shall be carried out in accordance with GB/T1868.
4.2 Determination of phosphorus pentoxide (P20s) content Approved by the Ministry of Chemical Industry of the People's Republic of China on April 2, 1995 and implemented on January 1, 1996
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4.3 Determination of magnesium oxide (MgO) content
According to GB/T1871.5.
4.4 Determination of trioxide (R203) content HG/T2675—1995
4.4.1 Determination of iron oxide content (Fe203) shall be carried out in accordance with GB/T1871.2. 4.4.2 Determination of aluminum oxide content (A120s) shall be carried out in accordance with GB/T1871.3. 4.4.3 Expression and calculation of results
The content X of trioxide (R203) is calculated as follows: X=S+S2
Wherein: S1——percentage of iron oxide determined according to GB/T1871.2; S2——percentage of aluminum oxide determined according to GB/T1871.3. 4.5 Determination of particle size
Performed by visual method or GB/T2007.7.
5 Inspection rules
5.1 The sampling of phosphate rock analysis samples for calcium magnesium phosphate fertilizer shall be carried out according to GB/T1868. 5.2 Ores of the same grade and sent to the same user at the same time are considered as one batch. 5.3 Each batch of ore shall be inspected by the quality inspection department of the production unit, and the production unit shall ensure that the phosphate rock supplied meets the technical requirements of this standard.
5.4 The user has the right to inspect the quality of the received phosphate rock in accordance with the provisions of this standard. If there is any objection, it should be raised within 15 days of arrival.
5.5 This standard adopts the "rounded value comparison method" specified in GB/T1250 to determine whether the inspection results meet the standard requirements. 5.6 When the supply and demand parties have objections to product quality and need arbitration, the relevant product quality arbitration provisions in the "Product Quality Law of the People's Republic of China" should be followed.
6 Marking, labeling, packaging
6.1 Each batch of phosphate rock should have a quality manual, which includes the name of the production unit, product name, product grade, quality indicators, product net weight, batch number, shipping date and this standard number. 6.2 Phosphate rock from different delivery batches should be stacked separately. 2
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