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GB/T 38104-2019Technical specification for phosphate tailings treatment and disposal (English PDF)

磷尾矿处理处置技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 18, 2019

Implementation date

September 1, 2020

Scope

GB/T 38104-2019 is the English-translated version of 磷尾矿处理处置技术规范.

GB/T 38104-2019 is a technical specification for the treatment and disposal of phosphorus tailings.

Clause 1 states that it specifies the terms and definitions of phosphorus tailings treatment and disposal, the treatment and disposal methods and the environmental protection requirements, and that it applies to the treatment and disposal of phosphorus tailings produced in the field of the phosphorus chemical industry.

Clause 2 cites GB 5085.3, GB 5085.7, GB 8978, GB 16297, GB 18599 and HG/T 2959.

Clause 3 defines phosphorus tailings, as the waste slag produced in the process of selecting phosphate rock with phosphate rock as the raw material, and aggregate, as granular loose material used mainly as a skeleton or filling and also as an inexpensive filler for cementitious materials, with a note that aggregate in this standard refers to phosphate tailings.

Clause 4, on treatment and disposal methods, opens with the preparation of basic magnesium carbonate, whose scope of application is limited to phosphorus tailings with a magnesium content greater than 15 % and whose method summary runs from high-temperature calcination of the tailings, which decomposes calcium carbonate and magnesium carbonate into calcium oxide and magnesium oxide, through water digestion and carbonization with carbon dioxide to purification by filtration of the filter residue and concentration by cooling, which yields a basic magnesium carbonate product.

The draft on the page breaks off after that summary, so the further treatment and disposal methods and the environmental protection requirements announced in clause 1 are not shown.

The standard was proposed by the China Petroleum and Chemical Industry Federation and is under the jurisdiction of the National Waste Chemical Treatment Standardization Technical Committee (SAC/TC294). It was issued on 2019-10-18 and has applied since 2020-09-01.

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Document preview — GB/T 38104-2019

National Standard of the People's Republic of China

ICS: 13.030.30
Classification: Z 05

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Treatment and disposal methods

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms and definitions of phosphorus tailings treatment and disposal, treatment and disposal methods and environmental protection requirements.

This standard applies to the treatment and disposal of phosphorus tailings produced in the field of phosphorus chemical industry.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB 5085.3 Identification criteria for hazardous wastes

GB 5085.7 General rules for the identification of hazardous wastes

GB 8978 Integrated Wastewater Discharge Standard

GB 16297 Integrated emission standards for atmospheric pollutants

GB 18599 General industrial solid waste storage and disposal site pollution control standards

HG/T 2959 industrial hydrated basic magnesium carbonate

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Phosphorus tailings

The waste slag produced in the process of selecting phosphate rock with phosphate rock as raw material.

3.2 Aggregate

It is mainly used as a granular loose material for skeleton or filling, and also as an inexpensive filler for cementitious materials.

Note: This standard aggregate refers to phosphate tailings.

4 Treatment and disposal methods

4.1 Preparation of basic magnesium carbonate

4.1.1 Scope of application

Phosphorus tailings with a magnesium content greater than 15%.

4.1.2 Method summary

High-temperature calcination of phosphorus tailings to decompose calcium carbonate and magnesium carbonate into calcium oxide, magnesium oxide, water digestion, carbon dioxide carbonization and carbon removal The filter residue such as calcium acid and fluoroapatite is purified by filtration and concentrated by cooling to obtain a basic magnesium carbonate product.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 40662-2021|GB/T 12951-2009|GB/T 25032-2026|GB/T 33071-2026|GB/T 47075-2026|GB/T 47393-2026

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