CN101574620A - Treating process of sour gas generated in the purification of diamond - Google Patents
Treating process of sour gas generated in the purification of diamond Download PDFInfo
- Publication number
- CN101574620A CN101574620A CNA2009100652517A CN200910065251A CN101574620A CN 101574620 A CN101574620 A CN 101574620A CN A2009100652517 A CNA2009100652517 A CN A2009100652517A CN 200910065251 A CN200910065251 A CN 200910065251A CN 101574620 A CN101574620 A CN 101574620A
- Authority
- CN
- China
- Prior art keywords
- diamond
- acid gas
- mixed solution
- produce
- sour gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention belongs to the technical field of waste gas treatment and particularly relates to a treating process of sour gas generated in the purification of diamond. The sour gas sequentially reacts with urea solution and mixed solution containing sodium sulfide hydrate and ammonium hydrogen carbonate. The mass rate of sodium sulfide hydrate to ammonium hydrogen carbonate is 1:1-2 in the mixed solution. The method is environment-friendly and avoids using poisonous reagent, has low treatment cost and good treatment effect.
Description
(1) technical field
The invention belongs to the waste gas pollution control and treatment technical field, produce the improvement technology of acid gas during particularly a kind of diamond is purified.
(2) background technology
In the diamond purification process, can produce a large amount of acid gas, wherein contain air-polluting harmful substances such as a large amount of sulphur, nitrogen oxide and nitric acid, hydrochloric acid.These waste gas must be removed pernicious gas and just can discharge through complicated processing procedure.Existing technology mainly be with a large amount of caustic soda, vulcanized sodium make solution by absorption tower spray reduction, in and acid gas in the waste gas.Caustic soda cost height wherein, the big and facile hydrolysis of vulcanized sodium toxicity, reaction condition is wayward, easily produces new great toxicity hydrogen sulfide gas, and hydrogen sulfide can produce strong intoxicating sense after being absorbed by the body.
(3) summary of the invention
The object of the present invention is to provide a kind of diamond to produce the improvement technology of acid gas in purifying, to overcome existing method poor processing effect, easily to produce pernicious gas and the high defective of processing cost.
The technical solution used in the present invention is as follows:
Produce the improvement technology of acid gas during a kind of diamond is purified, described acid gas reacts with urea liquid and the mixed solution that contains sheet alkali and carbonic hydroammonium successively, and the mass ratio of sheet alkali and carbonic hydroammonium is 1 in the mixed solution: 1-2.
The mass concentration of described urea liquid is 6-20%.
The mass concentration of sheet alkali is 4-15% in the described mixed solution.
Described reaction is undertaken by the solution spraying acid gas in firsts and seconds wind tower successively.
The present invention handles sour tail gas in two steps, earlier with the acid gas in the urea liquid spray suction force one wind tower, main and henna nitrogen dioxide generation redox reaction, the two product mainly is nontoxic nitrogen, carbon dioxide and water, then with mist suction light breeze tower once more, acid gas with in the mixed solution spray suction wind tower of sheet alkali and carbonic hydroammonium utilizes the acid-base neutralization reaction to neutralize sour tail gas.When spray absorbs acid gas in two-stage wind tower,, can circulate and repeatedly spray absorption if treatment effect once can not reach requirement, up to standard until last processing gas.This method has been avoided the use of the poisonous vulcanized sodium in original technology, and urea and carbonic hydroammonium are almost non-toxic, and product also is an environment-protecting asepsis.Moreover the price of vulcanized sodium is higher relatively, uses urea and carbonic hydroammonium, has also reduced cost simultaneously.
The present invention has following advantage with respect to prior art:
The inventive method environmental protection and avoided the use of toxic reagent, processing cost is low, and treatment effect is good.
(4) specific embodiment:
Below with specific embodiment technical scheme of the present invention is described, but protection scope of the present invention is not limited thereto:
Embodiment 1
In force one wind tower pond, add 5 tons of water and 400 kilograms of urea stirrings, then with the sour tail gas suction force one wind tower spray of emitting in the production process, spray liquid gets final product rapidly and the reaction of the nitrogen dioxide in the sour tail gas, main nitrogen and the carbon dioxide of generating, again with mist suction light breeze tower, add 5 tons of water, 300 kilograms of sheet alkali and 300 kilograms of carbonic hydroammonium in the light breeze tower pond in advance and stir, the sour tail gas with in this solution spraying suction light breeze tower can neutralize acid gas.
Embodiment 2
In force one wind tower pond, add 10 tons of water and 700 kilograms of urea stirrings, then with the sour tail gas suction force one wind tower spray of emitting in the production process, spray liquid gets final product rapidly and the reaction of the nitrogen dioxide in the sour tail gas, main nitrogen and the carbon dioxide of generating, again with mist suction light breeze tower, add 8 tons of water, 400 kilograms of sheet alkali and 600 kilograms of carbonic hydroammonium in the light breeze tower pond in advance and stir, the sour tail gas with in this solution spraying suction light breeze tower can neutralize acid gas.
Embodiment 3
In force one wind tower pond, add 10 tons of water and 700 kilograms of urea stirrings, then with the sour tail gas suction force one wind tower spray of emitting in the production process, spray liquid gets final product rapidly and the reaction of the nitrogen dioxide in the sour tail gas, main nitrogen and the carbon dioxide of generating, again with mist suction light breeze tower, add 8 tons of water, 400 kilograms of sheet alkali and 800 kilograms of carbonic hydroammonium in the light breeze tower pond in advance and stir, the sour tail gas with in this solution spraying suction light breeze tower can neutralize acid gas.
Claims (4)
1. produce the improvement technology of acid gas during a diamond is purified, it is characterized in that, described acid gas reacts with urea liquid and the mixed solution that contains sheet alkali and carbonic hydroammonium successively, and the mass ratio of sheet alkali and carbonic hydroammonium is 1 in the mixed solution: 1-2.
2. produce the improvement technology of acid gas during diamond as claimed in claim 1 is purified, it is characterized in that the mass concentration of described urea liquid is 6-20%.
3. produce the improvement technology of acid gas during diamond as claimed in claim 1 is purified, it is characterized in that the mass concentration of sheet alkali is 4-15% in the described mixed solution.
4. produce the improvement technology of acid gas in purifying as the described diamond of one of claim 1-3, it is characterized in that described reaction is undertaken by the solution spraying acid gas successively in firsts and seconds wind tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100652517A CN101574620A (en) | 2009-06-23 | 2009-06-23 | Treating process of sour gas generated in the purification of diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100652517A CN101574620A (en) | 2009-06-23 | 2009-06-23 | Treating process of sour gas generated in the purification of diamond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101574620A true CN101574620A (en) | 2009-11-11 |
Family
ID=41269770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100652517A Pending CN101574620A (en) | 2009-06-23 | 2009-06-23 | Treating process of sour gas generated in the purification of diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101574620A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285069A (en) * | 1976-01-07 | 1977-07-15 | Mitsugi Aoyama | Desulfurization and denitration process for decomposing and separating exhaust liquid to nonpollutants while purifying exhaust gas by adding exhaust liquid obtained by treating sulfur oxides in exhaus |
| US5404841A (en) * | 1993-08-30 | 1995-04-11 | Valentine; James M. | Reduction of nitrogen oxides emissions from diesel engines |
-
2009
- 2009-06-23 CN CNA2009100652517A patent/CN101574620A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285069A (en) * | 1976-01-07 | 1977-07-15 | Mitsugi Aoyama | Desulfurization and denitration process for decomposing and separating exhaust liquid to nonpollutants while purifying exhaust gas by adding exhaust liquid obtained by treating sulfur oxides in exhaus |
| US5404841A (en) * | 1993-08-30 | 1995-04-11 | Valentine; James M. | Reduction of nitrogen oxides emissions from diesel engines |
Non-Patent Citations (1)
| Title |
|---|
| 卢志民等: "碳酸氢铵选择性非催化还原烟气中的氮氧化物", 《燃烧科学与技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102343212B (en) | Denitration process combining co-oxidation of ozone and hydrogen peroxide with wet absorption | |
| CN103157358B (en) | Flue gas denitration method based on advanced oxidization technology | |
| CN109276987B (en) | Absorbent for desulfurization and denitrification treatment of industrial tail gas | |
| KR102114062B1 (en) | METHOD FOR REMOVING SOx FROM GAS USING POLYOL COMPLEX SOLUTION | |
| CN101502746A (en) | Method for processing nitrous oxides in chlorinated exhaust of nitroaromatic compounds | |
| CN105289228B (en) | A kind of industrial smoke coordinated desulfurization method of denitration | |
| CN106823746A (en) | A kind of tobacco remover and preparation method thereof | |
| CN110075690A (en) | A kind of novel oxynitrides tobacco remover and its application method | |
| CN112107983A (en) | Hydrogen peroxide desulfurization process | |
| CN110090538A (en) | A kind of oxyradical wet process of FGD method of denitration | |
| CN205832945U (en) | A kind of nitrous oxides exhaust gas that reclaims prepares the device of dust technology | |
| CN105126608A (en) | Method for treating nitrogen oxides | |
| CN107261805A (en) | A kind of special hydrazine solution of chimney smoke desulphurization denitration and preparation method thereof | |
| CN111068501B (en) | Absorption decomposition liquid, method and device for simultaneously removing hydrogen sulfide and ammonia waste gas | |
| CN107638792A (en) | A kind of compound flue gas denitration oxidizing agent and application process | |
| CN101574620A (en) | Treating process of sour gas generated in the purification of diamond | |
| CN214680967U (en) | Nitrogen oxide waste gas resourceful treatment device | |
| CN112957891A (en) | Recycling treatment method for nitrogen oxide waste gas in noble metal purification process | |
| CN105126584A (en) | Method for treating nitrogen oxides | |
| CN101822940B (en) | Device for gas recovery and desulfurization at deamination tower top | |
| CN104511240A (en) | Treatment method for nitrogen oxide waste gas | |
| CN108905407A (en) | The method that compound flue gas desulfurization and denitrification takes off white minimum discharge processing | |
| CN109045963B (en) | Method for removing gaseous selenium dioxide in coal-fired flue gas through oxidation-absorption | |
| CN201692742U (en) | Gas recovery desulfurizing device on top of deamination column | |
| CN109603463A (en) | A kind of absorption plant and absorption process of arc tunnel high concentration huge discharge nitrogen oxides tail gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU SYNTHETIC DIAMOND AND PRODUCTS ENGINEERI Free format text: FORMER OWNER: HENAN SINO CRYSTAL SUPERHARD MATERIALS HOLDINGS LIMITED Effective date: 20100406 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100406 Address after: 450001 No. 24, Holly Street, hi tech Development Zone, Henan, Zhengzhou Applicant after: Zhengzhou Artificial Diamond and Produce Engineering and Technological Research Center Co., Ltd. Address before: 450001 No. 24, Holly Street, hi tech Development Zone, Henan, Zhengzhou Applicant before: Sino Crystal Superhard Materials Co., Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091111 |