HG/T 2786-1996 Pyrite and sulfur concentrate HG/T2786-1996 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T 2786 -- 1996
Pyrite and pyrite concentrate
Issued on January 16, 1996
Ministry of Chemical Industry of the People's Republic of China
Implemented on July 1, 1997
HG/T 2786 —1996
This standard is a revision of ZBD51005—88 "Pyrite". With reference to foreign standards and in combination with the current situation of commercial ore production in my country, this revision specifies technical requirements for pyrite (raw ore) and concentrate separately, and the name of the standard is changed to "Pyrite and pyrite concentrate". The technical requirements for the superior grade of combed concentrate in this standard are not equivalent to TOCT 444-75 (92) "Floatation pyrite"; the non-equivalent first-grade grade of pyrite concentrate is rOCT444-75. According to the resource characteristics and production reality of my country, the carbon index is increased, and the moisture content is changed to be agreed upon by both parties.
This standard is in accordance with GB/T12707-91 "Guidelines for the Classification of Industrial Product Quality", and divides the quality of pyrite and sulfur concentrate products into three grades. Except for moisture content, the items specified in the technical requirements are retained. According to the principle of rationally utilizing my country's pyrite resources, meeting the requirements of acid production process, combining the current production situation, and actively adopting foreign advanced standards, necessary adjustments are made to the technical indicators of various items in the previous version. This standard is applicable to various types of pyrite products in my country, including pyrrhotite and coal-bearing rock pyrite. From the date of its entry into force, this standard will replace ZBD51 005-88 at the same time. This standard is proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Chemical Industry Mining Design and Research Institute of the Ministry of Chemical Industry. The responsible drafting unit of this standard: Chemical Industry Mine Design Institute of the Ministry of Chemical Industry The participating drafting units of this standard: Yunfu Pyrite Enterprise Group Corporation, Nanhua Company Design Institute, Longyou Pyrite, Datian Pyrite, Yanmen Iron Mine, Tianquanyu Iron Mine, Shanxi Chemical Mineral Company, etc. The main drafters of this standard: Gu Lihua and Wang Zhaowen. This standard was first issued in April 1988.
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Chemical Industry Standard of the People's Republic of China
Pyrite and sulfur concentrate
HG/T 2786 —1996
This standard specifies the quality requirements, test methods and inspection rules of pyrite and sulfur concentrate products. This standard is applicable to pyrite and sulfur concentrate products for the production of sulfuric acid, and other uses can also refer to it. 2 Cited standards
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. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1250--89 Method for expressing and determining limit values ​​GB/T2460-1996 Method for sampling and sample preparation of pyrite and sulphur concentrates GB/T2461-1996 Determination of moisture in pyrite and sulphur concentrates - Gravimetric method GB/T2462-1996 Determination of effective sulphur content in pyrite and sulphur concentrates - Combustion neutralization method GB/T2464-1996 Determination of arsenic content in pyrite and sulphur concentrates - Ag-DDTC spectrophotometry GB/T2465-1996 Determination of fluorine content in pyrite and sulphur concentrates - Ion selective electrode method GB/T2467.1-1996 Determination of lead content in pyrite and sulphur concentrates - Part 1: Flame atomic absorption spectrometry (neqISO8753:1987(E))
GB/T GB/T 2467.2-1996 Determination of lead content in pyrite and pyrite concentrates Part 2: Oscillographic polarography GB/T 2468.1-1996 Determination of zinc content in pyrite and pyrite concentrates Part 1: Flame atomic absorption spectrometry (neq ISO 8753:1987 (E)) GB/T 2468.2-1996 Determination of zinc content in pyrite and pyrite concentrates Part 2: Oscillographic polarography GB/T 2469-1996 Determination of carbon content in pyrite and pyrite concentrates Caustic soda asbestos gravimetric method 3 Requirements 3.1 The quality of pyrite products shall comply with the requirements of Table 1. Approved by the Ministry of Chemical Industry of the People's Republic of China on January 16, 1996 and implemented on July 1, 1997 Effective alkali (S) content, % Species (As) Total, %
Chlorine (F) content, %
Lead and zinc (Pb+Za) content, %
Carbon (C) content, %
【The content of each component is calculated on a dry basis,
HG/T2786—1996
2Qualified products-only applicable to coal-series rock pyrite 3Technical indicators of polymetallic sulfide ore arsenic shall be implemented according to the contract Technical indicators of pyrite
Superior products
4Water content is the basis for measurement, and the technical indicators are agreed upon by both parties: 5Particle size should be less than or equal to 2.50mm.
3.2The quality of the concentrate product should meet the requirements of Table 2, referring to
Table 2 Technical indicators of sulfur concentrate
Effective sulfur (S) content. %
As content, %
Fluorine (F) content. %
Lead and zinc (Pb+Zn) content, %
C content, %
1The content of each component is calculated on a dry basis
2The technical indicators of arsenic in polymetallic sulfur concentrate shall be implemented in accordance with the contract. 3The moisture content is the basis for measurement, and the technical indicators shall be agreed upon by the supplier and the buyer. The test method
Superior quality
First-class
Pyrite and sulfur concentrate sampling and sample preparation shall be implemented in accordance with GB/T2460. Standard
Qualified products
First-class products
Qualified products
HG/T2786-1996
4.2 The determination of moisture (H,O) shall be carried out in accordance with GB/T24614.3 The determination of effective sulfur (S) content shall be carried out in accordance with GB/T24624.4 The determination of aspheric acid (As) content shall be carried out in accordance with GB/T2464. 4.5 The determination of oxygen (F) content shall be carried out in accordance with GB/T2465. 4.6 The determination of lead (Pb) content shall be carried out in accordance with GB/T2467.1 or GB/T2467.24.7 The determination of zinc (Zn) content shall be carried out in accordance with GB/T2468.1 or GB/T2468.2. 4.8 The determination of carbon (C) content shall be carried out in accordance with GB/T 2469 Implementation.5 Inspection rules
5.1 Pyrite or sulfur concentrate products of the same quality sent to the same user are one delivery batch. 5.2 Each delivery batch of pyrite or sulfur concentrate products shall be inspected by the quality inspection department of the production unit. The production unit shall ensure that all product indicators meet the requirements of this standard. 5.3 The user has the right to inspect the received products in accordance with the provisions of this standard. If there is any objection, it shall be raised within 15 days after arrival, and the batch of products shall be kept intact until the two parties negotiate and deal with it. 5.4 This standard adopts the "rounded value comparison method" specified in GB/T1250 to determine whether the inspection results meet the standard requirements. 5.5 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" shall be followed.
5.6 If the content of individual impurity items in pyrite or sulfur concentrate products is lower than the requirements specified in this standard, the impurity items can be negotiated by the supply and demand parties for regular inspection. ,
6 Marking, labeling, packaging
6.1 Each batch of pyrite or sulfur concentrate products should have a quality instruction manual, indicating the production unit, product name, product grade, quality index, product net weight, batch number, delivery date and this standard number. 6.2 Pyrite or sulfur concentrate products are transported in bulk by train, car or ship, and sulfur concentrate powder needs to be covered with tarpaulin. 6.3 Pyrite or sulfur concentrate products that are not delivered in batches should be stacked separately. People's Republic of China|| tt||Chemical Industry Standard
Pyrite and Sulfur Concentrate
HG/T2786-1996
Editor: Chemical Industry Standard Editing and Publishing Group
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100011
Printer: Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format: 880×12301/16
Print Sheet·Word Number: B 008
First Edition in April 1997
First Printing in April 1997
Print Quantity: [500
Cost: 5.00 Yuan
9661-982 1/0
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