GB/T 33071-2016 in English
VALIDTechnical specification for cobalt scrap treatment and disposal
- Issued on:2016-10-13
- Implemented on:2017-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 33071-2016含钴废料处理处置技术规范》由TC294（全国废弃化学品处置标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
Interpretation of technical specifications for treatment and disposal of cobalt-containing waste
1. Scope of application and classification method of the standard
This standard applies to the treatment and disposal of all cobalt-containing waste, covering technical requirements such as classification, pretreatment, leaching and recovery.
| Category | Description | Typical source |
|---|---|---|
| Cobalt alloy waste | Including cobalt-based alloy chips, slag and scraps | Metal processing industry |
| Cobalt compound waste | Such as cobalt hydroxide, cobalt chloride, etc. | Chemical industry |
2. Comparison of treatment technologies for cobalt-containing waste
The following is a three-dimensional framework comparison of cobalt-containing waste treatment technologies, covering process flow, equipment requirements and applicable scenarios:
| Technical Dimensions | Pretreatment Stage | Leaching Stage | Purification Stage |
|---|---|---|---|
| Process Flow | Roasting, Crushing, Magnetic Separation | Chemical Dissolution, Electrochemical Dissolution | Extraction, Stripping |
| Equipment Requirements | Roasting Furnace, Crusher, Magnetic Separator | Electrolyzer, Reaction Equipment | Extraction Box, Stripping Device |
| Applicable Scenarios | Applicable to large-particle waste | Applicable to high-purity requirements | Applicable to fine purification |
3. Implementation suggestions and precautions
Implementation steps:
- Classification and identification: Classify cobalt-containing waste according to GB/T25954-2010.
- Pretreatment stage: Use roasting, crushing, magnetic separation and other methods to reduce impurity content.
- Leaching process: Select chemical dissolution or electrochemical dissolution technology to extract cobalt elements.
- Purification process: Improve the purity of the solution through iron removal, calcium and magnesium removal and extraction process.
- Purification stage: Use stripping technology to prepare high-purity cobalt-containing products.
Notes:
- Strictly control process parameters in accordance with standards, such as roasting temperature (600-700℃) and leaching time (2-10h).
- Ensure compliance of environmental protection facilities, especially waste gas and wastewater treatment systems.
- Regularly monitor the leaching rate (not less than 98%) and recovery rate (not less than 96%) of cobalt.
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