DE2746926C2 - Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des Verfahrens - Google Patents
Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des VerfahrensInfo
- Publication number
- DE2746926C2 DE2746926C2 DE19772746926 DE2746926A DE2746926C2 DE 2746926 C2 DE2746926 C2 DE 2746926C2 DE 19772746926 DE19772746926 DE 19772746926 DE 2746926 A DE2746926 A DE 2746926A DE 2746926 C2 DE2746926 C2 DE 2746926C2
- Authority
- DE
- Germany
- Prior art keywords
- process according
- acid
- carboxylic acid
- calcium
- raw 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.)
- Expired
Links
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims description 41
- 239000007789 gas Substances 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 30
- 235000010269 sulphur dioxide Nutrition 0.000 title claims description 20
- 239000004291 sulphur dioxide Substances 0.000 title claims description 18
- 238000004140 cleaning Methods 0.000 title claims description 6
- 239000007788 liquid Substances 0.000 claims description 52
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 39
- 238000005406 washing Methods 0.000 claims description 33
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 31
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 23
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 22
- 238000005201 scrubbing Methods 0.000 claims description 22
- 239000000654 additive Substances 0.000 claims description 21
- 239000004135 Bone phosphate Substances 0.000 claims description 19
- 230000000996 additive effect Effects 0.000 claims description 18
- 235000011132 calcium sulphate Nutrition 0.000 claims description 13
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 11
- 235000019253 formic acid Nutrition 0.000 claims description 11
- -1 alkali metal salt Chemical class 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 150000001735 carboxylic acids Chemical class 0.000 claims description 7
- 239000001175 calcium sulphate Substances 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 5
- 150000001447 alkali salts Chemical class 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 5
- 150000007522 mineralic acids Chemical class 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- 230000001914 calming effect Effects 0.000 claims description 4
- 229940043430 calcium compound Drugs 0.000 claims description 3
- 150000001674 calcium compounds Chemical class 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical class [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical class C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical class [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims description 2
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- 239000011591 potassium Chemical class 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000003546 flue gas Substances 0.000 description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 10
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910001424 calcium ion Inorganic materials 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 239000010440 gypsum Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 4
- 235000010261 calcium sulphite Nutrition 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 description 3
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000004295 calcium sulphite Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 235000014413 iron hydroxide Nutrition 0.000 description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 235000019255 calcium formate Nutrition 0.000 description 1
- 239000004281 calcium formate Substances 0.000 description 1
- 229940044172 calcium formate Drugs 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical class [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940044170 formate Drugs 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772746926 DE2746926C2 (de) | 1977-10-19 | 1977-10-19 | Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des Verfahrens |
| AT0783577A AT367318B (de) | 1976-12-03 | 1977-11-03 | Verfahren zum reinigen von rohgas und anderen abgasen, die schwefeldioxid enthalten und vorrichtung zur durchfuehrung des verfahrens |
| NL7712450A NL7712450A (nl) | 1976-12-03 | 1977-11-11 | Werkwijze voor het zuiveren van ruw gas en andere afvoergassen, die zwaveldioxyde bevatten en inrichting voor het uitvoeren van deze werkwijze. |
| SE7712900A SE431939B (sv) | 1976-12-03 | 1977-11-15 | Sett att rena ragas och andra avgaser, som innehaller svaveldioxid samt anordning for genomforande av settet |
| GB4849677A GB1545175A (en) | 1974-09-19 | 1977-11-22 | Removal of noxious contaminants from gas |
| FR7735441A FR2372651A1 (fr) | 1976-12-03 | 1977-11-24 | Procede pour la purification des gaz bruts et d'autres gaz residuaires qui contiennent de l'anhydride sulfureux et dispositif pour l'execution de ce procede |
| US05/855,268 US4222993A (en) | 1974-09-19 | 1977-11-28 | Removal of noxious contaminants from gas |
| CH1461177A CH630814A5 (en) | 1976-12-03 | 1977-11-29 | Process for cleaning waste gases containing sulphur dioxide, and appliance for carrying out the process |
| BE2056472A BE861329A (fr) | 1976-12-03 | 1977-11-30 | Procede et dispositif pour la purification de gaz bruts et autres gaz residuaires contenant de l'anhydride sulfureux |
| IT30251/77A IT1089312B (it) | 1976-12-03 | 1977-12-01 | Dispositivo per purificare gas geggi o gas di scarico,che contengono anidride solforosa |
| DK539277A DK539277A (da) | 1976-12-03 | 1977-12-02 | Fremgangsmaade til rensning af raagas og andre afgangsgasser der indeholder svovldioxid og apparat til gennemfoerelse af fremgangsmaaden |
| CA292,308A CA1100122A (en) | 1976-12-03 | 1977-12-02 | Removal of noxious contaminants from gas |
| JP14492377A JPS5370981A (en) | 1976-12-03 | 1977-12-02 | Method and apparatus for purifying raw gas and sulfur dioxideecontaining waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772746926 DE2746926C2 (de) | 1977-10-19 | 1977-10-19 | Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des Verfahrens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2746926A1 DE2746926A1 (de) | 1979-04-26 |
| DE2746926C2 true DE2746926C2 (de) | 1987-04-30 |
Family
ID=6021776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772746926 Expired DE2746926C2 (de) | 1974-09-19 | 1977-10-19 | Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des Verfahrens |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2746926C2 (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3639612A1 (de) * | 1986-11-20 | 1988-06-01 | Steinmueller Gmbh L & C | Verfahren zur behandlung von trockenen reststoffen aus der entschwefelung von gasen mit einem calciumhaltigen absorptionsmittel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2532373C3 (de) * | 1975-07-19 | 1983-12-08 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Verfahren und Vorrichtung zum Reinigen von Rauchgasen und anderen Abgasen, die Schwefeldioxyd enthalten |
-
1977
- 1977-10-19 DE DE19772746926 patent/DE2746926C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2746926A1 (de) | 1979-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3588075T2 (de) | Apparat für die nasse Rauchgasentschwefelung | |
| DE3011592C2 (da) | ||
| DE2708497C3 (de) | Verfahren und Vorrichtung zur Entfernung von Verunreinigungen aus einem Abgas | |
| DE2532373C3 (de) | Verfahren und Vorrichtung zum Reinigen von Rauchgasen und anderen Abgasen, die Schwefeldioxyd enthalten | |
| DE69001729T2 (de) | Entschwefelung von rauchgas. | |
| DE2641204A1 (de) | Verfahren zur entfernung von schwefeloxyden aus industriellen abgasen | |
| DE2511291A1 (de) | Verfahren zum entfernen von schwefeloxiden aus gasstroemen | |
| DE2419579A1 (de) | Schwefeldioxid-nassreinigungssystem | |
| DE2304496A1 (de) | Verfahren zur so tief 2-entfernung | |
| DE2613639A1 (de) | Verfahren zum ausscheiden von flugasche aus rauchgas in einem geschlossenen system mit nasskrubber | |
| DE2325733C2 (de) | Verfahren zur Abtrennung gasförmiger Schwefeloxide aus Gasströmen | |
| DE2847047A1 (de) | Verfahren zur entschwefelung schwefelhaltiger prozessgase | |
| DE2460010C3 (de) | Verfahren zum Entfernen von Schwefeldioxid aus einem Abgas | |
| DE69304082T2 (de) | Verfahren zur herstellung von grünlauge bei der rückgewinnung von chemikalien in einer sulfat- und sulfitzellstoff-anlage | |
| DE2735566A1 (de) | Verfahren zum entfernen von fluorverbindungen und schwefeldioxid aus abgasen | |
| DE2161475C3 (de) | Verfahren zum cyklischen Gegenstromwaschen von schwefeloxidhaltigen Verbrennungsabgasen | |
| DE2363793B2 (de) | Verfahren zur Entfernung von schwefelhaltigen Gasen aus Abgasen | |
| DE2905778A1 (de) | Waschanlage fuer gase | |
| EP0324845B1 (de) | Verfahren zur entschwefelung von rauchgasen aus kraftwerkskesselfeuerungen | |
| CH617867A5 (da) | ||
| DE3136155A1 (de) | Verfahren zur zufuehrung von absorbenzien beim nass-kalk-verfahren zur desulfurierung von abgas | |
| DE2746926C2 (de) | Verfahren zum Reinigen von Rohgas und anderen Abgasen, die Schwefeldioxid enthalten und Vorrichtung zur Durchführung des Verfahrens | |
| DE2415693B2 (de) | Verfahren zum Reinigen von Rauchgasen oder anderen Gasen | |
| CH630814A5 (en) | Process for cleaning waste gases containing sulphur dioxide, and appliance for carrying out the process | |
| DE3310716C2 (de) | Verfahren zur absorptiven Entfernung von HCL und SO↓2↓ aus Rauchgas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| Q176 | The application caused the suspense of an application |
Ref document number: 2802829 Country of ref document: DE |
|
| AG | Has addition no. |
Ref country code: DE Ref document number: 2802829 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |