EP2609388A1 - Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von proben - Google Patents
Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von probenInfo
- Publication number
- EP2609388A1 EP2609388A1 EP11748415.4A EP11748415A EP2609388A1 EP 2609388 A1 EP2609388 A1 EP 2609388A1 EP 11748415 A EP11748415 A EP 11748415A EP 2609388 A1 EP2609388 A1 EP 2609388A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature furnace
- sample
- spinel ceramic
- temperature
- evaporation space
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 63
- 229910052596 spinel Inorganic materials 0.000 title claims abstract description 61
- 239000011029 spinel Substances 0.000 title claims abstract description 61
- 238000005259 measurement Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 14
- 238000001704 evaporation Methods 0.000 claims abstract description 68
- 230000008020 evaporation Effects 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 150000003839 salts Chemical class 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 239000000443 aerosol Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000008016 vaporization Effects 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 230000003111 delayed effect Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 description 11
- 230000035939 shock Effects 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 229910020068 MgAl Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052574 oxide ceramic Inorganic materials 0.000 description 3
- 239000011224 oxide ceramic Substances 0.000 description 3
- 229910052566 spinel group Inorganic materials 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 2
- 239000011225 non-oxide ceramic Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000943 NiAl Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
- F27B17/02—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00 specially designed for laboratory use
Definitions
- the present invention relates to a high-temperature furnace, with the aid of which T (0) C measurements of samples can be carried out in order to be able to determine, in particular according to DIN EN 1484, the proportion of oxidizable carbon in a wastewater.
- the present invention further relates to a suitable use of a spinel ceramic and a method for carrying out T (0) C measurements of samples.
- the proportion of oxidizable carbon of a wastewater is determined by determining the total organic carbon (TOC) value, whereby the measured carbon content does not necessarily have to be organically bound depending on the sample ("T (0) C value")
- TOC total organic carbon
- a particularly liquid sample is dripped into a evaporation space in a high-temperature furnace and essentially completely oxidized so that the total carbon is present as C0 2.
- the concentration of the resulting C0 2 can with a
- the resulting integral of the C0 2 concentration over time is proportional to the carbon released from the sample, and for the oxidation of the sample, the high temperature reactor is heated to temperatures of about 700 ° C heated to 1000 ° C.
- the object is achieved according to the invention by a high-temperature furnace having the features of claim 1, a use having the features of claim 10 and a method of performing T (0) C measurements of samples having the features of claim 11.
- the high-temperature furnace according to the invention for T (0) C measurement of a sample has a furnace housing delimiting an evaporation space, which has a sample opening for dropping in the sample.
- the furnace housing is lined with a spinel ceramic on an inner side facing the evaporation space.
- the evaporation space is the entire volume, which is limited by the oven housing.
- the evaporation space is lined by a material that allows particularly high temperatures within the evaporation space and thus the most complete combustion and at the same time is very resistant to thermal shock.
- This makes it possible to substantially clean the evaporation space at operating temperature with a rinsing liquid and dissolved salts, in particular recrystallized inorganic salts from the evaporation space dissolved in the rinsing liquid or to remove undissolved. Aging of the high-temperature furnace by deposited salts can thereby be avoided or at least significantly delayed, whereby the operating costs over the life of the high-temperature furnace are reduced. Cleaning by hand is not required.
- a cleaning of the remaining at operating temperature high-temperature furnace between two measurements can be provided without the particular continuous T (0) C measurement of samples is significantly delayed.
- Damage to the spinel ceramic by the impinging rinse liquid can be avoided due to the high thermal shock resistance, so that microcracks and material fatigue of the spinel ceramic during rinsing are substantially avoided.
- increased corrosion resistance, especially in the case of alkali-containing slags, is achieved, so that the range of application of the high-temperature furnace can be extended to a large number of different, for example particularly alkaline, samples.
- the spinel ceramic does not react acid with water, whereas, for example, an Al 2 O 3 -SiO 2 ceramic reacts acidic with conventional water as conventional ceramic.
- the furnace housing has at least one flushing opening for introducing a flushing liquid.
- the flushing opening may be different, in particular, from the sample opening, so that the flushing liquid does not contaminate the path of the sample and may possibly falsify a subsequent measurement.
- the flushing opening is oriented substantially vertically, so that the flushing liquid can trickle down in the direction of gravity over the surface of the spinel ceramic facing the evaporation space in order to clean the high-temperature furnace.
- the at least one flushing opening is preferably aligned substantially horizontally, so that the flushing liquid can run along the boundary of the evaporation space via the side of the spinel ceramic facing the evaporation chamber.
- the rinsing liquid can be discharged together with the washed out salts, which may be dissolved in the rinsing liquid or undissolved, in particular via a lower outlet in the direction of gravity.
- Rinsing liquid remaining in the evaporation space can be vaporized and discharged from the evaporation space, comparable to a sample measurement.
- water can be used.
- the rinsing opening is preferably connected to at least one injection nozzle for introducing an aerosol mist from rinsing liquid, wherein the at least one injection nozzle has a substantially horizontally oriented introduction direction.
- the rinsing liquid can be introduced as a mist or vapor and sprayed at a corresponding pressure against the Spülöffhung respectively opposite region of the spinel ceramic.
- the rinsing liquid can more easily detach from the baked salts by the impact pressure that can be achieved thereby on the spinel ceramic.
- a plurality of Spülöff is on a substantially common vertical height in the circumferential direction preferably evenly distributed.
- the particle size distribution has a gap in a certain particle size range.
- the spinel ceramic may have 60-65% by mass coarse grain and 35-40% by weight fine grain, wherein the fine grain may comprise particle sizes in a range from> ⁇ to ⁇ 74 ⁇ and the coarse grain sizes in a range from> 74 ⁇ to ⁇ 700 ⁇ > means greater than or equal to, ⁇ means less than or equal to).
- the spinel ceramic has pores having a size in a range of ⁇ . Such small pores improve the thermal shock resistance even further and lead to a cracking occurring at a cracking around the crack tip, which leads to lower voltage at the appropriate location.
- the pores may in particular have a size of> 0.1 ⁇ to ⁇ 10 ⁇ .
- the open porosity has a value in a range from> 10% by volume to ⁇ 30% by volume.
- the open porosity of the material is the sum of the cavities that communicate with each other and with the environment, and is also referred to as Nutzporostician.
- the spinel ceramic is produced as a substantially isostatically pressed molding or produced by a plasma coating process. It is possible to apply the spinel ceramic to the substrate by means of the plasma coating process, comparable to a rapid prototyping process in several layers. This allows the spinel ceramic to be applied to a substrate that is easier to install to line the evaporation space. If necessary, a plurality of spinel ceramic layers can be provided one above the other, so that during a revision, one or more of the upper layers can be separated from an underlying layer in order to provide a uniform unused surface.
- the different layers have a different composition and / or particle size distribution.
- sufficient stability can be ensured, for example, in lower layers, whereas the upper layers are adapted to the measuring task.
- Overall, an even better adaptation of the spinel ceramic to the measurement tasks is possible.
- the vapor / C0 2 mixture obtained from the liquid sample to be measured by evaporation and oxidation is typically passed directly to the NDIR (Non-Dispersive) via an outlet port located on the furnace housing defining the evaporation space Infrared detector), via which the concentration of the resulting carbon dioxide is determined.
- NDIR Non-Dispersive
- Infrared detector Infrared detector
- the spontaneous evaporation of the sample to be measured produces pulsed measuring signals at the detector. This correlates with the dripping frequency of the sample at the furnace inlet.
- the amount of CO2 produced from the sample thus flows frequently, pulsing past the NDIR detector. Accordingly, the detector determines not constant but highly fluctuating measured values, under which the measuring accuracy of the measuring system can suffer.
- the high-temperature furnace according to the invention for T (0) C measurement can be modified to the effect that the steam / C0 2 mixture is deflected by constructive elements on the way within the evaporation space to the Auslassöffhung.
- the constructive elements may be unattached in the evaporation space by touching each other.
- the structural elements may be variably mounted by horizontal and / or vertical elevations in the evaporation space of the high-temperature furnace.
- the constructive elements may be attached to the inner wall of the evaporation space.
- the constructive elements can also be fastened to one another. In this case, different structural elements can be combined.
- the constructive elements may be, for example, three-dimensional bodies, such as spheres, cuboids, rings, cones or cylinders or any other shaped three-dimensional body. Other structural elements such as straight or curved plates, struts or other flat elements may also be used.
- the constructive elements may consist of different materials.
- the structural elements are preferably made of or coated with spinel ceramic.
- the structural elements are particularly preferably made of or coated with the same spinel ceramic as used to line the evaporation space of the high-temperature furnace for T (0) C measurement.
- Another effect of this constructive change is that by diverting the vapor / C0 2 mixture non-vaporizable components, usually inorganic salts, which are formed during the oxidation of the sample or contained in the sample, are preferably retained in the evaporation chamber and not go to the outlet and continue to the NDIR. As a result, maintenance intervals of the entire analysis device are additionally increased and thus reduced operating costs.
- the invention further relates to a method for carrying out T (0) C measurements of samples, wherein a high-temperature furnace is provided, the high-temperature furnace having a spinel space lined with a spinel ceramic.
- the high-temperature furnace is in particular as described above and further developed.
- the evaporation space is heated to operating temperature and a sample is introduced into the evaporation space.
- a flushing liquid is introduced into the evaporation space substantially at the operating temperature for the removal of inorganic salts which have been recrystallized within the evaporation space from the sample.
- the method can in particular be designed and developed further as described above with reference to the high-temperature furnace. Due to the spinel ceramic, the evaporation space is lined by a material which allows particularly high temperatures within the evaporation space and thus as complete a combustion as possible, while at the same time being resistant to high temperatures. This makes it possible to substantially clean the evaporation space at operating temperature with a rinsing liquid and dissolved salts, in particular recrystallized inorganic salts from the evaporation space dissolved in the rinsing liquid or to remove undissolved. An aging of the high-temperature furnace by deposited salts can be avoided or at least significantly delayed.
- a method for TOC measurement of samples comprising the steps of providing a high-temperature furnace, wherein the high-temperature furnace has a spinel-lined evaporation chamber, heating the evaporation space to operating temperature, introducing a sample into the evaporation space, evaporating and / or oxidizing the sample in the evaporation space, measuring the amount of C0 2 formed, and introducing a purge liquid into the evaporation space substantially at the operating temperature to remove inorganic salts recrystallized within the evaporation space from the sample.
- the rinsing liquid is injected into the evaporation space as an aerosol mist.
- the rinsing liquid can be introduced as a mist or vapor and sprayed at a corresponding pressure against the Spülöffhung respectively opposite region of the spinel ceramic.
- the rinsing liquid can more easily detach from the baked-on salts by the impact pressure that can be achieved thereby on the spinel ceramic.
- a plurality of Spülöff is on a substantially common vertical height in the circumferential direction preferably evenly distributed.
- the evaporation space is dried essentially at operating temperature and subsequently another sample for T (0) C measurement is introduced into the evaporation space.
- rinsing liquid water can be used.
- organic, in particular carbonaceous, solvent as rinsing liquid.
- T 0 an operating temperature
- substantially complete oxidation of the carbon can be achieved without risking material damage in the spinel ceramic due to temperature effects.
- the operating costs can be further reduced.
- the use of catalyst balls can be reduced by means of an internal predetermined, constructive gas path. In particular, immediately after the introduction of the sample and immediately after the initiation of the
Landscapes
- Engineering & Computer Science (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11748415.4A EP2609388B1 (de) | 2010-08-27 | 2011-08-26 | Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von proben |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10174403A EP2423627A1 (de) | 2010-08-27 | 2010-08-27 | Hochtemperaturofen, Verwendung einer Spinell-Keramik und Verfahren zur Durchführung von T(O)C Messungen von Proben |
| PCT/EP2011/064698 WO2012025611A1 (de) | 2010-08-27 | 2011-08-26 | Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von proben |
| EP11748415.4A EP2609388B1 (de) | 2010-08-27 | 2011-08-26 | Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von proben |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2609388A1 true EP2609388A1 (de) | 2013-07-03 |
| EP2609388B1 EP2609388B1 (de) | 2015-01-07 |
Family
ID=43466515
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10174403A Withdrawn EP2423627A1 (de) | 2010-08-27 | 2010-08-27 | Hochtemperaturofen, Verwendung einer Spinell-Keramik und Verfahren zur Durchführung von T(O)C Messungen von Proben |
| EP11748415.4A Not-in-force EP2609388B1 (de) | 2010-08-27 | 2011-08-26 | Hochtemperaturofen, verwendung einer spinell-keramik und verfahren zur durchführung von t(o)c-messungen von proben |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10174403A Withdrawn EP2423627A1 (de) | 2010-08-27 | 2010-08-27 | Hochtemperaturofen, Verwendung einer Spinell-Keramik und Verfahren zur Durchführung von T(O)C Messungen von Proben |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP2423627A1 (de) |
| CN (1) | CN103080683A (de) |
| WO (1) | WO2012025611A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6631817B2 (ja) * | 2018-03-30 | 2020-01-15 | 株式会社エコロ | Toc計測方法及びそれに使用するtoc計測装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4078894A (en) * | 1976-11-12 | 1978-03-14 | Raytheon Company | Analyzer system with salt extractor |
| DE4417247B4 (de) * | 1994-05-17 | 2006-06-08 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Verbrennungsofen für Flüssigkeitsproben |
| CN2826430Y (zh) * | 2005-08-19 | 2006-10-11 | 徐滋秋 | 实验室总有机碳测定仪 |
| CN2856999Y (zh) * | 2005-12-12 | 2007-01-10 | 叶大林 | 水的总有机碳(toc)测定仪 |
| CN101241067A (zh) * | 2008-03-14 | 2008-08-13 | 赵双平 | 总有机碳总氮联测仪 |
| DE102008025877A1 (de) * | 2008-05-29 | 2009-12-03 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Vorrichtung zur Bestimmung des Gehalts an mindestens einem oxidierbaren Inhaltsstoff in einer wässrigen Flüssigkeitsprobe |
| CN201488944U (zh) * | 2009-08-10 | 2010-05-26 | 重庆川仪自动化股份有限公司 | 一种总有机碳(toc)分析仪 |
| CN101776606A (zh) * | 2010-02-05 | 2010-07-14 | 江苏扬农化工集团有限公司 | 一种对液体中总碳和总有机碳进行分析的方法 |
-
2010
- 2010-08-27 EP EP10174403A patent/EP2423627A1/de not_active Withdrawn
-
2011
- 2011-08-26 EP EP11748415.4A patent/EP2609388B1/de not_active Not-in-force
- 2011-08-26 WO PCT/EP2011/064698 patent/WO2012025611A1/de not_active Ceased
- 2011-08-26 CN CN2011800417387A patent/CN103080683A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012025611A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2423627A1 (de) | 2012-02-29 |
| EP2609388B1 (de) | 2015-01-07 |
| WO2012025611A1 (de) | 2012-03-01 |
| CN103080683A (zh) | 2013-05-01 |
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