CN203842494U - Washing and purifying device of thermal power plant organic amine desulfurization flue gas - Google Patents
Washing and purifying device of thermal power plant organic amine desulfurization flue gas Download PDFInfo
- Publication number
- CN203842494U CN203842494U CN201420172702.3U CN201420172702U CN203842494U CN 203842494 U CN203842494 U CN 203842494U CN 201420172702 U CN201420172702 U CN 201420172702U CN 203842494 U CN203842494 U CN 203842494U
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- CN
- China
- Prior art keywords
- prewashing
- absorption tower
- flue gas
- power plant
- purifying device
- 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.)
- Expired - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003546 flue gas Substances 0.000 title claims abstract description 37
- 150000001412 amines Chemical class 0.000 title claims abstract description 31
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- 238000005406 washing Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 35
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 239000003517 fume Substances 0.000 claims description 10
- 239000012717 electrostatic precipitator Substances 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 7
- 229910052731 fluorine Inorganic materials 0.000 abstract description 3
- 239000011737 fluorine Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 239000002002 slurry Substances 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 230000003009 desulfurizing effect Effects 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 241000370738 Chlorion Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a washing and purifying device of thermal power plant organic amine desulfurization flue gas. The device is a prewashing absorption tower, wherein the upper part of the prewashing absorption tower is an absorption section, and the lower part of the prewashing absorption tower is a prewashing section; a liquid collecting plate, an electrostatic demister, a deflecting type demister and a spraying layer are sequentially arranged on the absorption section from top to bottom; a power plant flue gas inlet and a water glass dosing opening are formed in the bottom of the prewashing section; a wastewater inlet and a main body circulating water inlet of an amine liquid purification system are formed in the upper end of the prewashing section. The washing and purifying device of the thermal power plant organic amine desulfurization flue gas, disclosed by the utility model, is suitable for treating the power plant flue gas containing relatively high content of acidic gas such as fluorine and the like, can be used for effectively improving the desulfurization efficiency, protecting the desulfurization equipment and saving the running and investment cost, and is provided with a hydraulic stirring and removal system so as to effectively prevent dust and heavy metals from being accumulated in the prewashing tower.
Description
Technical field
The utility model relates to chemical technology field, relates in particular to the washing purifying device of a kind of thermal power plant organic amine desulfurization fume.
Background technology
Conventional calcium method sulfur removal technology is not also suitable for thermal power plant, sulphur coal area, and huge operating cost and huge transport pressure become the great burden of calcium method desulfurizing item operation; And organic amine sulfur removal technology transport intensity is low, operating cost is low, and produces the accessory substance of better economy, can, effectively by sulfur dioxide recovery, turn waste into wealth.Economic benefit, environmental benefit and the social benefit of amine process desulfurizing item is all highly significant, so in sulphur coal area, organic amine sulfur removal technology is more applicable than conventional calcium method sulfur removal technology.
In order to improve desulfuration efficiency, further reduce cigarette temperature to saturation temperature, reduce dust and the impact of harmful components on desulphurization system in flue gas, flue gas, before entering absorption tower, need carry out washing, purifying by prewashing column.The pretreatment system form of desulphurization system has and prewashing column is set before absorption tower, Venturi scrubber is set at home: by flue gas pretreatment, conventionally can make 120-180 DEG C of high-temperature flue gas be cooled to 80 DEG C of left and right, make flue gas humidification, be conducive to improve SO
2absorptivity plays dust removing effects simultaneously, efficiency of dust collection 95% left and right.But for sulfur-bearing, fluorinated hydrogen, the larger flue gas of hydrogen chloride, traditional prewashing system, easily causes the enrichment of oxious component, make more corrosivity composition enter into absorption tower, the corrosion of acceleration equipment and the inefficacy of desulfurizing agent, reduce desulfuration efficiency.
Utility model content
Directly enter the problem of desulfuration absorbing tower infringement desulphurization system for solving the excessive dust that contains in the boiler smoke pretreatment stage flue gas that power plant sulfur-bearing, fluorinated hydrogen, hydrogen chloride are larger and fluorine, chlorion, the utility model provides a kind of prewashing tower and absorption tower unification body, and is applicable to the washing purifying device of thermal power plant's organic amine desulfurization fume of sulfur-bearing, fluorinated hydrogen, boiler smoke that hydrogen chloride is larger.
The technical scheme that the utility model is taked is:
The washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume is a prewashing absorption tower, and described top, prewashing absorption tower is absorber portion, and bottom is pre-wash section; Absorber portion is disposed with liquid collection dish, electrostatic precipitator, deflector type demister and spraying layer from top to bottom; Pre-wash section bottom is provided with power-plant flue gas entrance and waterglass dosing mouth; Pre-wash section upper end is provided with waterwater entrance and the main body recirculated water entrance of amine purification system.
The bottom on described prewashing absorption tower is provided with hydraulic agitator, and hydraulic agitator is connected with the hydraulic mixing pump of device outside by pipeline, and hydraulic mixing pump is connected to again the bottom on prewashing absorption tower by pipeline.
Bottom, described prewashing absorption tower is connected by pipeline with the dredge pump that is arranged on outside, leads to Waste Water Treatment.
Bottom, described prewashing absorption tower is connected by pipeline with the circulating pump that is arranged on outside, and the other end is connected to the spraying layer top on prewashing absorption tower by pipeline.
The absorber portion on described prewashing absorption tower and the aspect ratio of pre-wash section are 0.57.
Spacing between described deflector type demister and spraying layer is 14.5m.
Flue gas enters prewashing tower from power-plant flue gas entrance, and loop slurry sprays from top, fully mixes with flue gas is reverse, after the mode that the flue gas after pre-wash adds electrostatic precipitator through demister is removed drop and sulfur trioxide, enters absorber portion.
Enter in the stock tank at the bottom of tower with the mixed slurries of flue gas, the slurries part in stock tank is got to spraying layer by circulating pump by loop slurry, and flue gas is sprayed.Totally three of circulating pumps, each corresponding one deck spraying layer; Circulating pump and spraying layer adopt 21 of operations for subsequent use, and stock tank is equipped with hydraulic agitator; The waterglass medicament that to add hydraulic mixing pump and be in order to make to add fully reacts with fluorine ion in washings, effectively removes fluorine ion; Adding circulating pump is the circulating ratio in order to improve prewashing column, effectively removes the materials such as impurity in flue gas, hydrochloric acid, hydrofluoric acid.
For preventing the enrichment of fluorine ion in loop slurry, affect the absorption of recirculated water to hydrofluoric acid in flue gas and hydrochloric acid.Waterglass dosing mouth is set, water glass solution is added in prewashing column washing slurries, waterglass is fully reacted with the hydrogen fluoride in flue gas, generate prodan and be dissolved in prewashing column slurries, thereby remove the hydrogen fluoride in flue gas.
The water yield of taking away for supplementing smoke evaporative and discharge of wastewater, pre-wash system is carried out moisturizing, and a moisturizing part derives from main body Wastewater Form Circulating Cooling Water, and a part derives from the discharge of wastewater of amine purification device.
In order to prevent the accumulation of dust and heavy metal in prewashing tower, desulfurization wastewater treatment system is set, pre-wash technique is provided with waste water excavationg pump, separates through hydrocyclone, and prewashing column is returned in overflow, and underflow is sent to Waste Water Treatment.
The utility model has obvious superiority: 1, make the flow process of amine process desulfurization acid-making process become more clear simple (flue gas approach is clear distinct from bottom to up), in economy, also save to some extent; 2, compared with arranging respectively with double tower, the utility model is single tower structure, has reduced basis and attached equipment and platform etc., floor space is significantly less than double tower, and apparatus arrangement around and pipeline are all more convenient, so place connection and reasonable arrangement, can save space, be conducive to the layout of other equipment; 3, compared with arranging respectively with double tower, in technology arrangement, the utility model is single tower structure, thus reduce the quantity of flue and pipeline, and due to the minimizing of flue and pipeline, make energy consumption and resistance also have corresponding reduction, good economy performance.
The utility model is that one is applied in the desulfurizing tower of (for the production of sulfuric acid) in amine process desulfurization acid making system, especially be noted that, the utility model is applied in amine process desulfurization acid making system, what this system was produced is sulfuric acid, compared with the spray column of using with common on the market production chemical fertilizer, belong to complete different types of desulfurizing tower, so can not analogy.
Good effect of the present utility model is as follows:
1) washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume is suitable for processing the fluorine-containing higher power-plant flue gas of acid gas-containing that waits, and effectively improves desulfuration efficiency and the protection to desulphurization plant, saves operation and cost of investment.
2) due to waterglass and hydrogen fluoride reaction very fast, in the time that flue gas contacts with pre-wash slurries, hydrogen fluoride and waterglass generate rapidly prodan and are dissolved in pre-wash slurries, but prewashing column rises to more than 95% hydrofluoric clearance in flue gas.
3) washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume is equipped with hydraulic mixing and removal system, effectively prevents the accumulation of dust and heavy metal in prewashing tower.
4) moisturizing of the washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume has effectively utilized the waste water of organic amine system purification system, has saved water and has reduced discharge.
Therefore, the utility model has obvious superiority: 1, make the flow process of amine process desulfurization acid-making process become more clear simple (flue gas approach is clear distinct from bottom to up), in economy, also save to some extent; 2, compared with arranging respectively with double tower, the utility model is single tower structure, has reduced basis and attached equipment and platform etc., floor space is significantly less than double tower, and apparatus arrangement around and pipeline are all more convenient, so place connection and reasonable arrangement, can save space, be conducive to the layout of other equipment; 3, compared with arranging respectively with double tower, in technology arrangement, the utility model is single tower structure, thus reduce the quantity of flue and pipeline, and due to the minimizing of flue and pipeline, make energy consumption and resistance also have corresponding reduction, good economy performance.
The utility model is that one is applied in the desulfurizing tower of (for the production of sulfuric acid) in amine process desulfurization acid making system, especially be noted that, the utility model is applied in amine process desulfurization acid making system, what this system was produced is sulfuric acid, compared with the spray column of using with common on the market production chemical fertilizer, belong to complete different types of desulfurizing tower, so can not analogy.
Brief description of the drawings
Fig. 1 is the schematic diagram of the washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume.
1, prewashing absorption tower, 2, hydraulic agitator, 3, hydraulic mixing pump, 4, dredge pump, 5, circulating pump, 6, spraying layer, 7, deflector type demister, 8, electrostatic precipitator, 9, liquid collection dish, 10, power-plant flue gas entrance, 11, waterglass dosing mouth, 12, the waterwater entrance of amine purification system, 13, main body recirculated water entrance.
Detailed description of the invention
The following examples are to describe in further detail of the present utility model.
As shown in Figure 1: the washing purifying device of thermal power plant of the present utility model organic amine desulfurization fume is a prewashing absorption tower 1, and 1 top, prewashing absorption tower is absorber portion, and bottom is pre-wash section; Absorber portion is disposed with liquid collection dish 9, electrostatic precipitator 8, deflector type demister 7 and spraying layer 6 from top to bottom; Pre-wash section bottom is provided with power-plant flue gas entrance 10 and waterglass dosing mouth 11; Pre-wash section upper end is provided with waterwater entrance 12 and the main body recirculated water entrance 13 of amine purification system.
The absorber portion on prewashing absorption tower 1 and the aspect ratio of pre-wash section are 0.57.
Spacing between deflector type demister 7 and spraying layer 6 is 14.5m.
The bottom on prewashing absorption tower 1 is provided with hydraulic agitator 2.
Hydraulic agitator 2 is connected with the hydraulic mixing pump 3 of device outside by pipeline, and hydraulic mixing pump 3 is connected to again the bottom on prewashing absorption tower 1 by pipeline.
1 bottom, prewashing absorption tower is connected by pipeline with the dredge pump 4 that is arranged on outside, leads to Waste Water Treatment.
1 bottom, prewashing absorption tower is connected by pipeline with the circulating pump 5 that is arranged on outside, and the other end is connected to spraying layer 6 tops on prewashing absorption tower 1 by pipeline.
Flue gas enters prewashing tower from power-plant flue gas entrance 10, and loop slurry sprays from top, fully mixes with flue gas is reverse, and the flue gas after pre-wash after electrostatic precipitator 8 and deflector type demister 7 are removed drop and sulfur trioxide, enters absorber portion.Enter in the stock tank at the bottom of tower with the mixed slurries of flue gas, the slurries part in stock tank is got to spraying layer 6 by circulating pump 5 by loop slurry, and flue gas is sprayed; A part is discharged to Waste Water Treatment by sewage water discharge pump 4; Another part is uniformly mixed stock tank by hydraulic mixing pump 3; In this process, waterglass dosing mouth 11 adds stock tank; Due to smoke evaporative and blowdown, the waterwater entrance 12 that the waste water that system enters main body recirculated water entrance 13 and amine purification system by main body recirculated water enters amine purification system carries out moisturizing.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (3)
1. a washing purifying device for thermal power plant's organic amine desulfurization fume, is characterized in that: this device is a prewashing absorption tower (1), and described top, prewashing absorption tower (1) is absorber portion, and bottom is pre-wash section; Absorber portion is disposed with liquid collection dish (9), electrostatic precipitator (8), deflector type demister (7) and spraying layer (6) from top to bottom; Pre-wash section bottom is provided with power-plant flue gas entrance (10) and waterglass dosing mouth (11); Pre-wash section upper end is provided with waterwater entrance (12) and the main body recirculated water entrance (13) of amine purification system;
The bottom on described prewashing absorption tower (1) is provided with hydraulic agitator (2), and described hydraulic agitator (2) is connected with the hydraulic mixing pump (3) of device outside by pipeline, and hydraulic mixing pump (3) is connected to again the bottom of prewashing absorption tower (1) by pipeline;
The bottom on described prewashing absorption tower (1) is connected by pipeline with the dredge pump (4) that is arranged on outside, leads to Waste Water Treatment;
The bottom on described prewashing absorption tower (1) is connected by pipeline with the circulating pump (5) that is arranged on outside, and the other end is connected to spraying layer (6) top of prewashing absorption tower (1) by pipeline.
2. washing purifying device as claimed in claim 1, is characterized in that: the absorber portion on described prewashing absorption tower (1) and the aspect ratio of pre-wash section are 0.57.
3. washing purifying device as claimed in claim 1, is characterized in that: the spacing between described deflector type demister (7) and spraying layer (6) is 14.5m.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420172702.3U CN203842494U (en) | 2014-04-11 | 2014-04-11 | Washing and purifying device of thermal power plant organic amine desulfurization flue gas |
Applications Claiming Priority (1)
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CN201420172702.3U CN203842494U (en) | 2014-04-11 | 2014-04-11 | Washing and purifying device of thermal power plant organic amine desulfurization flue gas |
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CN203842494U true CN203842494U (en) | 2014-09-24 |
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CN201420172702.3U Expired - Lifetime CN203842494U (en) | 2014-04-11 | 2014-04-11 | Washing and purifying device of thermal power plant organic amine desulfurization flue gas |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105107320A (en) * | 2015-08-25 | 2015-12-02 | 大连理工大学 | Jet flow ionizer coupling mechanical demister used for wet process flue gas desulfurization |
-
2014
- 2014-04-11 CN CN201420172702.3U patent/CN203842494U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105107320A (en) * | 2015-08-25 | 2015-12-02 | 大连理工大学 | Jet flow ionizer coupling mechanical demister used for wet process flue gas desulfurization |
CN105107320B (en) * | 2015-08-25 | 2017-01-25 | 大连理工大学 | Jet flow ionizer coupling mechanical demister used for wet process flue gas desulfurization |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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CP03 | Change of name, title or address | ||
CX01 | Expiry of patent term |
Granted publication date: 20140924 |
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CX01 | Expiry of patent term |