|
US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 33056-2016: Technical specification for fluorine waste gas treatment and disposal
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33056-2016 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Technical specification for fluorine waste gas treatment and disposal
| Valid |
GB/T 33056-2016
|
PDF similar to GB/T 33056-2016
Basic data | Standard ID | GB/T 33056-2016 (GB/T33056-2016) | | Description (Translated English) | Technical specification for fluorine waste gas treatment and disposal | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Z05 | | Classification of International Standard | 13.030.30 | | Word Count Estimation | 10,147 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-05-01 | | Regulation (derived from) | National Standard Notice No.1716 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 33056-2016: Technical specification for fluorine waste gas treatment and disposal---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical specification for fluorine waste gas treatment and disposal
ICS 13.030.30
Z05
National Standards of People's Republic of China
Technical specification for disposal of fluorine - containing waste gas
2016-10-13 released
2017-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Petroleum and Chemical Industry Association.
This standard is under the jurisdiction of the National Standardization Technical Committee on Disposal of Waste Chemicals (SAC/TC294).
The drafting unit of this standard. Yunnan Fenye Environmental Protection Technology Co., Ltd., Weifang Daoyao New Material Co., Ltd., Xiamen Gao Puer Automation
Equipment Co., Ltd., Sinochem Chongqing Fuling Chemical Co., Ltd., Quanzhou Yunshang Sanwei Technology Co., Ltd., Guizhou Wengfu Blue Sky Fluorine Chemical Co., Ltd.
Co., Ltd., Zhejiang Chemical Industry Research Institute Co., Ltd., Guizhou Province Product Quality Supervision and Inspection Institute, CNOOC Tianjin Chemical Research and Design Institute.
The main drafters of this standard. Lin Minghui, Wang Qiang, Feng Jianping, Li Bing, Xu Huagang, Meng Wenxiang, Fang Lu, Chen Jianmin, Zhong Hongbo,
Shi Wanjun, Zhao Meijing.
Technical specification for disposal of fluorine - containing waste gas
1 Scope
This standard specifies the main components of fluorine-containing waste gas, treatment and disposal methods and environmental protection requirements.
This standard applies to wet phosphoric acid and phosphate fertilizer produced in the process of production of fluorine.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB 7744 Industrial hydrofluoric acid
GB 7746 Industrial anhydrous hydrogen fluoride
Emission standard for odorous pollutants GB 14554
GB 16297 Integrated Emission Standard for Air Pollutants
HG/T 4692 Industrial ammonium fluorosilicate
3 fluorine containing the main components of waste gas
The main components of fluorine-containing waste gas are silicon tetrafluoride (SiF4) gas and hydrogen fluoride (HF) gas.
4 Dispose of disposal methods
4.1 Production of ammonium fluorosilicate
4.1.1 Principle
Ammonium fluoride solution is used to absorb the fluorine-containing waste gas to obtain the ammonium fluorosilicate solution, crystallized by cooling, centrifuged and dried to obtain the finished product. Its reaction
The equation is as follows.
SiF4 2NH4F → (NH4) 2SiF6
The ammonium dilute ammonium silicate reacts with ammonia to give a lower concentration of ammonium fluoride solution, which can be used to absorb fluorine-containing waste gas
The reaction equation is as follows.
(NH4) 2SiF6 4NH3 2H2O → 6NH4F SiO2
Ammonium fluoride solution can also be used to absorb fluorine-containing waste gas to obtain ammonium fluoride solution, without cooling crystallization and direct access to ammonia, can be concentrated
High ammonium fluoride solution, ammonium fluoride solution can be used for the preparation of such as ammonium fluoride, ammonium hydrogen fluoride, aluminum fluoride and other inorganic fluoride. At the same time can be added
Water diluted part of the higher concentration of ammonium fluoride solution, diluted for the absorption of fluorine-containing waste gas.
4.1.2 Process flow
A tower and two towers with a concentration of 15% to 25% of the ammonium fluoride solution as the absorption medium, the three towers of water as the absorption medium,
A tower and two towers absorb the formation of ammonium fluorosilicate, at this time the basic absorption of fluoride exhaust gas is completely complete, and the absorption of a tower with three towers and two towers are not completely absorbed
The amount of fluorine-containing waste gas, while a tower and the two tower ammonium fluoride solution volatile ammonium fluoride, ammonium fluorosilicate and free ammonia for washing absorption. A tower of suction
|