CN202303404U - Fluoride organic waste liquid and waste gas incinerating and treating system - Google Patents
Fluoride organic waste liquid and waste gas incinerating and treating system Download PDFInfo
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- CN202303404U CN202303404U CN2011203279418U CN201120327941U CN202303404U CN 202303404 U CN202303404 U CN 202303404U CN 2011203279418 U CN2011203279418 U CN 2011203279418U CN 201120327941 U CN201120327941 U CN 201120327941U CN 202303404 U CN202303404 U CN 202303404U
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- fluorine
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a fluoride organic waste liquid and waste gas incinerating and treating system, wherein the system comprises an incinerating furnace, a fluoride organic waste gas supply system, a fluoride organic waste liquid supply system, a hydrogenation supply system and a combustion-supporting wind supply system; the fluoride organic waste gas supply system, the fluoride organic waste liquid supply system, the hydrogenation supply system and the combustion-supporting wind supply system are respectively connected with the inlet of the incinerating furnace; the outlet of the incinerating furnace is connected with a fuel gas quenching and HF (hydrogen fluoride) recycling system and an alkaline cleaning system; the thermal decomposition of the fluoride organic waste liquid and waste gas and the incineration of combustible components of waste liquid and waste gas are both performed in the incinerating furnace, meanwhile the redundant organic fluorine is promoted to be converted into inorganic hydrogen fluoride through introducing hydrogen to the incinerating furnace, and finally all organic fluorine is ensured to be converted into inorganic hydrogen fluoride, so that the hydrogen fluoride is fully converted into hydrofluoric acid by a rear absorption system, and the conversion ratio and recycling ratio of fluoride resource are improved effectively. According to the utility model, the traditional fluoride organic waste liquid, waste gas treating technology is improved, perfected and replenished, and the requirements of environment protection and energy conservation are met.
Description
Technical field
The utility model relates to a kind of fluorine-containing organic liquid waste, the nuisanceless treatment technology of waste gas, is specifically related to the burning processing system of a kind of fluorinion concentration high-concentration fluorine-contained organic liquid waste, waste gas more than 200mg/L.
Background technology
The main method of the fluorine-containing organic exhaust gas waste liquid of present domestic processing is through in waste water, adding lime stone it to be carried out alkali cleaning etc.; These class methods can produce a large amount of brine wastes; Simultaneously not obvious for organic fluoride-containing waste gas and waste liquid treatment effect, cause secondary pollution easily; Utilize chemical coagulation-sedimentation method handle fluorine-containing organic wastewater only be applicable to fluorine fluctuation of concentration in low concentration and the waste water less waste water; Microbial method is handled fluorine-containing organic wastewater and also is in laboratory stage at present, and not seeing had the industrialization public reported.
Summary of the invention
The purpose of the utility model is to provide a kind of fluorine-containing organic liquid waste burned waste gas treatment system, and it has carried out improvement, improvement to traditional fluoride treatment process and has replenished, and satisfies environmental protection and requirements of saving energy.
Realize the technical scheme of utility model purpose: a kind of fluorine-containing organic liquid waste, burned waste gas treatment system; Its this system comprises incinerator, fluorine-containing organic exhaust gas supply system, the fluorine-containing organic liquid waste supply system that is connected respectively with incinerator inlet, adds hydrogen supply, combustion air supply system; Incinerator outlet connection flue gas chilling and HF recovery system, caustic washing system; Described fluorine-containing organic exhaust gas supply system is supplied fluorine-containing organic exhaust gas in the combustion chamber of incinerator; Described fluorine-containing organic liquid waste supply system is supplied fluorine-containing organic liquid waste in the combustion chamber of incinerator; Described add hydrogen supply in the combustion chamber of incinerator with H2 or H
2O supplied hydrogen atom; Described combustion air supply system is imported combustion air in the combustion chamber of incinerator; Described flue gas chilling and HF recovery system reduce the temperature of incinerator internal reaction gained flue gas, and reclaim the HF in the flue gas, export after HF acid solution to be recycled reaches finite concentration; Flue gas after the gained cooling enters atmosphere after unnecessary HF is removed in neutralization through caustic washing system.
Described flue gas chilling and HF recovery system comprise quench drum, acid jar, diluted acid pump, falling-film absorber; Wherein the quench drum inlet links to each other with the combustion chamber reacting product outlet of incinerator; The quench drum outlet links to each other with the smoke inlet of falling-film absorber; The acid solution outlet of falling-film absorber links to each other with the inlet of acid jar, and the outlet of acid jar links to each other with the inlet of diluted acid pump, and the diluted acid delivery side of pump links to each other with the acid solution inlet of falling-film absorber and accomplishes the circulation of acid solution absorption liquid; When acid reaches finite concentration, can receive the recovery conveying that pipeline is accomplished hydrofluoric acid via acid solution through the diluted acid delivery side of pump.
Described caustic washing system comprises caustic wash tower, alkali jar, lye pump, chimney; Wherein, The exhanst gas outlet of falling-film absorber links to each other with the smoke inlet of caustic wash tower; Caustic wash tower top links to each other with chimney; The alkali lye outlet of caustic wash tower bottom links to each other with the inlet of alkali jar, and the outlet of alkali jar links to each other with the inlet of lye pump, and the alkali lye delivery side of pump links to each other with the alkali liquor inlet of caustic wash tower and accomplishes the circulation of alkali liquid washing liquid.
The described hydrogen supply that adds comprises the hydrogenation supply line that links to each other with the hydrogenation inlet of incinerator, makes hydrogen or water directly send into and accompanies burning to realize providing hydrogen atom in the incinerator.
Described combustion air supply system comprises combustion air supply line, cfentrifugal blower; Wherein the combustion air supply line links to each other with the inlet of cfentrifugal blower, and the outlet of cfentrifugal blower links to each other with the combustion air of incinerator inlet.
Described fluorine-containing organic exhaust gas supply system comprises fluorine-containing organic exhaust gas supply line, off-gas buffer tank, waste gas booster fan; Wherein fluorine-containing organic exhaust gas supply line links to each other with the inlet of off-gas buffer tank, and the outlet of off-gas buffer tank links to each other with the inlet of waste gas booster fan, and the outlet of waste gas booster fan links to each other with the combustion chamber of incinerator through pipeline.
Described fluorine-containing organic liquid waste supply system comprises fluorine-containing organic liquid waste supply line, waste liquid surge tank, waste liquid delivery pump; Wherein fluorine-containing organic liquid waste supply line links to each other with the inlet of waste liquid surge tank, and the outlet of waste liquid surge tank links to each other with the inlet of waste liquid delivery pump, and waste liquid carries delivery side of pump to link to each other with the combustion chamber of incinerator through pipeline.
The effect of the utility model is:
The CIU of the fluorine-containing organic liquid waste of the described processing of the utility model, waste gas with the thermal decomposition of fluorine-containing organic liquid waste, waste gas and the burning of waste liquid waste gas combustible composition, concentrates on this equipment of incinerator, simultaneously through hydrogenation (H in incinerator
2Or H
2O) promote unnecessary Organic fluoride to change into inorganic hydrogen fluoride, guarantee that finally whole Organic fluoride change into inorganic hydrogen fluoride, hydrogen fluoride is all changed into hydrofluoric acid, improved the conversion ratio and the rate of recovery of fluorine resource effectively with absorption system after an action of the bowels.
The utility model has reduced the quantity and the link of parameter regulation, is convenient to operate and keep the long-period stable operation of production.The utility model flue gas chilling and HF recovery system through the certain density hydrofluoric acid of falling-film absorber recycling, have certain commercial value.The utility model has carried out improvement, improvement to the fluorine-containing organic liquid waste of tradition, waste gas treatment process and has replenished; Can be used for organosilicon, oil plant, the fluorine-containing organic liquid waste of petroleum chemical enterprise, exhaust-gas treatment operation, also can be used for the harmless treatment of fluorine-containing organic liquid waste, waste gas in other relevant industries.
Description of drawings
Fig. 1 is the described a kind of fluorine-containing organic liquid waste of the utility model, burned waste gas treatment system sketch map.
Among the figure: 1. combustion air supply line; 2. air blast; 3. hydrogenation supply line; 4. fluorine-containing organic exhaust gas supply line; 5. waste gas containing fluoride surge tank; 6. waste gas supercharger; 7. fluorine-containing organic liquid waste supply line; 8. fluorine-containing waste liquid surge tank; 9. waste liquid delivery pump; 10. incinerator; 11. quench drum; 12. acid jar; 13. diluted acid pump; 14. diluted acid output pipe; 15. falling-film absorber; 16. caustic wash tower; 17. alkali jar; 18. lye pump; 19. chimney; 20. the quench drum liquid level is replenished pipeline.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the described a kind of fluorine-containing organic liquid waste burned waste gas treatment system of the utility model is further described.
As shown in Figure 1; The described a kind of fluorine-containing organic liquid waste of the utility model, burned waste gas treatment system; It comprises incinerator 10, fluorine-containing organic exhaust gas supply system, the fluorine-containing organic liquid waste supply system that is connected respectively with incinerator 10 inlet, adds hydrogen supply, combustion air supply system; Incinerator 10 outlet connection flue gas chillings and HF recovery system, caustic washing system.
Described fluorine-containing organic exhaust gas supply system is supplied fluorine-containing organic exhaust gas in the combustion chamber of incinerator 10.This fluorine-containing organic exhaust gas supply system comprises fluorine-containing organic exhaust gas supply line 4, off-gas buffer tank 5, waste gas booster fan 6; Wherein fluorine-containing organic exhaust gas supply line 4 links to each other with the inlet of off-gas buffer tank 5, and the outlet of off-gas buffer tank 5 links to each other with the inlet of waste gas booster fan 6, and the outlet of waste gas booster fan 6 links to each other with the combustion chamber of incinerator 10 through pipeline.
Described fluorine-containing organic liquid waste supply system is supplied fluorine-containing organic liquid waste in the combustion chamber of incinerator 10.This fluorine-containing organic liquid waste supply system comprises fluorine-containing organic liquid waste supply line 7, waste liquid surge tank 8, waste liquid delivery pump 9; Wherein fluorine-containing organic liquid waste supply line 7 links to each other with the inlet of waste liquid surge tank 8, and the outlet of waste liquid surge tank 8 links to each other with the inlet of waste liquid delivery pump 9, and the outlet of waste liquid delivery pump 9 links to each other with the combustion chamber of incinerator 10 through pipeline.
Described add hydrogen supply in the combustion chamber of incinerator 10 with H
2Or H
2O supplied hydrogen atom; This adds hydrogen supply and comprises the hydrogenation supply line 3 that links to each other with the hydrogenation inlet of incinerator 10, makes hydrogen or water directly send into and accompanies burning to realize providing hydrogen atom in the incinerator 10.
Described combustion air supply system is imported combustion air in the combustion chamber of incinerator 10.This combustion air supply system comprises combustion air supply line 1, cfentrifugal blower 2; Wherein combustion air supply line 1 links to each other with the inlet of cfentrifugal blower 2, and the outlet of cfentrifugal blower 2 links to each other with the combustion air inlet of incinerator 10.
Described flue gas chilling and HF recovery system reduce the temperature of incinerator 10 internal reaction gained flue gases, and reclaim the HF in the flue gas, export after HF acid solution to be recycled reaches finite concentration.This flue gas chilling and HF recovery system comprise quench drum 11, acid jar 12, diluted acid pump 13, falling-film absorber 15; Wherein quench drum 11 inlets link to each other with the combustion chamber reacting product outlet of incinerator 10; Quench drum 11 outlets link to each other with the smoke inlet of falling-film absorber 15; The acid solution outlet of falling-film absorber 15 links to each other with the inlet of acid jar 12; The outlet of acid jar 12 links to each other with the inlet of diluted acid pump 13; The outlet of diluted acid pump 13 links to each other with the acid solution inlet of falling-film absorber 15 and accomplishes the circulation of acid solution absorption liquid, when acid reaches finite concentration, can carry via the recovery that acid solution receives pipeline 14 completion hydrofluoric acid through the outlet of diluted acid pump 13.
Flue gas after the gained cooling enters atmosphere after unnecessary HF is removed in neutralization through caustic washing system.This caustic washing system comprises caustic wash tower 16, alkali jar 17, lye pump 18, chimney 19; Wherein, The exhanst gas outlet of falling-film absorber 15 links to each other with the smoke inlet of caustic wash tower 16; Caustic wash tower 16 tops link to each other with chimney 19; The alkali lye outlet of caustic wash tower 16 bottoms links to each other with the inlet of alkali jar 17, and the outlet of alkali jar 17 links to each other with the inlet of lye pump 18, and the outlet of lye pump 18 links to each other with the alkali liquor inlet of caustic wash tower 16 and accomplishes the circulation of alkali liquid washing liquid.
The described fluorine-containing organic liquid waste of the utility model, the burned waste gas treatment system course of work are: fluorine-containing waste gas, waste liquid are sent into the incinerator combustion chamber respectively simultaneously; The incinerator interior reaction temperature is 1100～1200 ℃; Through hydrogenation (H in incinerator
2Or H
2O) solve unnecessary Organic fluoride and all change into inorganic hydrofluoric key issue, effectively improve the rate of recovery of fluorine resource.Guaranteeing has in the incinerator under the condition of oxygen existence, and waste liquid and waste gas at high temperature decompose, oxidation, generates CO
2, H
2O, HF, NO, NO
2Deng, the product that gives off is free of contamination N
2, H
2The superfluous O of O and part
2Gas.The high-temperature flue gas that gives off from the incinerator combustion chamber; Get into quench drum, in quench drum, emit heat after, further circulating through falling-film absorber absorbs the HF in the flue gas again; Treat to be delivered to the diluted acid receiving system after acid solution reaches finite concentration; A part of acid solution is delivered to quench drum and is used for guaranteeing its liquid level simultaneously, and the flue gas after the cooling neutralizes unnecessary HF after enter atmosphere by chimney through caustic wash tower, and the flue gas after the processing satisfies national requirements for environmental protection.The utility model has carried out improvement, improvement to traditional fluoride treatment process and has replenished, and satisfies environmental protection and requirements of saving energy.
The utility model is to the improvement of the fluorine-containing organic exhaust gas method for treating waste liquid of tradition.It can judge whether to add fuel according to the calorific value of fluorine-containing organic liquid waste, can add hydrogen as auxiliary fuel if waste liquid, waste gas calorific value are low, if waste liquid, waste gas calorific value are higher; Can realize smooth combustion; In incinerator, mend entry, utilize the hydrogen in the water to catch fluorine ion in the waste liquid, thereby fluorine in organic liquid waste, the waste gas is become inorganic matter---hydrogen fluoride; Through the back absorption system hydrogen fluoride in the combustion product is absorbed, and the certain density hydrofluoric acid of by-product.Similar hydrogenation CIU, the present domestic public reported of also not seeing.Can be used for organosilicon, oil plant, the fluorine-containing organic liquid waste of petroleum chemical enterprise, exhaust-gas treatment operation, also can be used for the harmless treatment of fluorine-containing organic liquid waste, waste gas in other relevant industries.
Claims (7)
1. a fluorine-containing organic liquid waste, burned waste gas treatment system; It is characterized in that: this system comprises incinerator (10), fluorine-containing organic exhaust gas supply system, the fluorine-containing organic liquid waste supply system that is connected respectively with incinerator (10) inlet, adds hydrogen supply, combustion air supply system; Incinerator (10) outlet connection flue gas chilling and HF recovery system, caustic washing system; Described fluorine-containing organic exhaust gas supply system is supplied fluorine-containing organic exhaust gas in the combustion chamber of incinerator (10); Described fluorine-containing organic liquid waste supply system is supplied fluorine-containing organic liquid waste in the combustion chamber of incinerator (10); Described add hydrogen supply in the combustion chamber of incinerator (10) with H
2Or H
2O supplied hydrogen atom; Described combustion air supply system is imported combustion air in the combustion chamber of incinerator (10); Described flue gas chilling and HF recovery system reduce the temperature of incinerator (10) internal reaction gained flue gas, and reclaim the HF in the flue gas, export after HF acid solution to be recycled reaches finite concentration; Flue gas after the gained cooling enters atmosphere after unnecessary HF is removed in neutralization through caustic washing system.
2. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system is characterized in that: described flue gas chilling and HF recovery system comprise quench drum (11), acid jar (12), diluted acid pump (13), falling-film absorber (15); Wherein quench drum (11) inlet links to each other with the combustion chamber reacting product outlet of incinerator (10); Quench drum (11) outlet links to each other with the smoke inlet of falling-film absorber (15); The acid solution outlet of falling-film absorber (15) links to each other with the inlet of acid jar (12); The outlet of acid jar (12) links to each other with the inlet of diluted acid pump (13); The outlet of diluted acid pump (13) links to each other with the acid solution inlet of falling-film absorber (15) and accomplishes the circulation of acid solution absorption liquid, when acid reaches finite concentration, can receive the recovery conveying that pipeline (14) is accomplished hydrofluoric acid via acid solution through the outlet of diluted acid pump (13).
3. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system is characterized in that: described caustic washing system comprises caustic wash tower (16), alkali jar (17), lye pump (18), chimney (19); Wherein, The exhanst gas outlet of falling-film absorber (15) links to each other with the smoke inlet of caustic wash tower (16); Caustic wash tower (16) top links to each other with chimney (19); The alkali lye outlet of caustic wash tower (16) bottom links to each other with the inlet of alkali jar (17), and the outlet of alkali jar (17) links to each other with the inlet of lye pump (18), and the outlet of lye pump (18) links to each other with the alkali liquor inlet of caustic wash tower (16) and accomplishes the circulation of alkali liquid washing liquid.
4. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system; It is characterized in that: the described hydrogen supply that adds comprises the hydrogenation supply line (3) that links to each other with the hydrogenation inlet of incinerator (10), makes hydrogen or water directly send into and accompanies burning to realize providing hydrogen atom in the incinerator (10).
5. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system is characterized in that: described combustion air supply system comprises combustion air supply line (1), cfentrifugal blower (2); Wherein combustion air supply line (1) links to each other with the inlet of cfentrifugal blower (2), and the outlet of cfentrifugal blower (2) links to each other with the combustion air inlet of incinerator (10).
6. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system is characterized in that: described fluorine-containing organic exhaust gas supply system comprises fluorine-containing organic exhaust gas supply line (4), off-gas buffer tank (5), waste gas booster fan (6); Wherein fluorine-containing organic exhaust gas supply line (4) links to each other with the inlet of off-gas buffer tank (5), and the outlet of off-gas buffer tank (5) links to each other with the inlet of waste gas booster fan (6), and the outlet of waste gas booster fan (6) links to each other with the combustion chamber of incinerator (10) through pipeline.
7. a kind of fluorine-containing organic liquid waste according to claim 1, burned waste gas treatment system is characterized in that: described fluorine-containing organic liquid waste supply system comprises fluorine-containing organic liquid waste supply line (7), waste liquid surge tank (8), waste liquid delivery pump (9); Wherein fluorine-containing organic liquid waste supply line (7) links to each other with the inlet of waste liquid surge tank (8), and the outlet of waste liquid surge tank (8) links to each other with the inlet of waste liquid delivery pump (9), and the outlet of waste liquid delivery pump (9) links to each other with the combustion chamber of incinerator (10) through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203279418U CN202303404U (en) | 2011-09-02 | 2011-09-02 | Fluoride organic waste liquid and waste gas incinerating and treating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203279418U CN202303404U (en) | 2011-09-02 | 2011-09-02 | Fluoride organic waste liquid and waste gas incinerating and treating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202303404U true CN202303404U (en) | 2012-07-04 |
Family
ID=46372291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203279418U Expired - Lifetime CN202303404U (en) | 2011-09-02 | 2011-09-02 | Fluoride organic waste liquid and waste gas incinerating and treating system |
Country Status (1)
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|---|---|
| CN (1) | CN202303404U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305411A (en) * | 2011-09-02 | 2012-01-04 | 北京航天动力研究所 | Method and system for carrying out incineration treatment on fluorine-containing organic waste liquor/waste gas |
| CN105937765A (en) * | 2016-06-08 | 2016-09-14 | 北京航天动力研究所 | Incinerating quenching device used for treatment of high-viscosity and strong-corrosive salt containing waste liquid and incinerating quenching method used for treatment of high viscosity and strong corrosive salt containing waste liquid |
| CN107830534A (en) * | 2017-10-20 | 2018-03-23 | 江苏百纳环保设备有限公司 | Incinerator in a kind of liquid |
| CN107906539A (en) * | 2017-10-27 | 2018-04-13 | 中国神华能源股份有限公司 | Processing system containing alkali waste water and processing method |
-
2011
- 2011-09-02 CN CN2011203279418U patent/CN202303404U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305411A (en) * | 2011-09-02 | 2012-01-04 | 北京航天动力研究所 | Method and system for carrying out incineration treatment on fluorine-containing organic waste liquor/waste gas |
| CN105937765A (en) * | 2016-06-08 | 2016-09-14 | 北京航天动力研究所 | Incinerating quenching device used for treatment of high-viscosity and strong-corrosive salt containing waste liquid and incinerating quenching method used for treatment of high viscosity and strong corrosive salt containing waste liquid |
| CN107830534A (en) * | 2017-10-20 | 2018-03-23 | 江苏百纳环保设备有限公司 | Incinerator in a kind of liquid |
| CN107906539A (en) * | 2017-10-27 | 2018-04-13 | 中国神华能源股份有限公司 | Processing system containing alkali waste water and processing method |
| CN107906539B (en) * | 2017-10-27 | 2019-11-15 | 中国神华能源股份有限公司 | Processing system containing alkali waste water and processing method |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Inst. of Aerospace Dynamics Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170109 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Fengtai District, Fengtai District, South Dahongmen Road, No. 1, No. Patentee before: Beijing Aerospace Propulsion Institute Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170324 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing wing wing Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 1 South Dahongmen Road, Haidian District, Beijing Patentee after: Beijing aviate energy saving and Environmental Protection Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing wing wing Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
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| CX01 | Expiry of patent term |