WO2011054703A1 - Verfahren zur handhabung von wässrigen methansulfonsäurelösungen - Google Patents
Verfahren zur handhabung von wässrigen methansulfonsäurelösungen Download PDFInfo
- Publication number
- WO2011054703A1 WO2011054703A1 PCT/EP2010/066181 EP2010066181W WO2011054703A1 WO 2011054703 A1 WO2011054703 A1 WO 2011054703A1 EP 2010066181 W EP2010066181 W EP 2010066181W WO 2011054703 A1 WO2011054703 A1 WO 2011054703A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- msa
- steel
- steels
- devices
- aqueous
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
Definitions
- the present invention relates to a method for handling aqueous solutions of methanesulfonic acid in austenitic steel devices having a chromium content of 15 to 22 wt.% And a nickel content of 9 to 15 wt.%.
- Methanesulfonic acid (H3CSO3H, MSA) is a strong organic acid used in a variety of different processes, including galvanic processes, chemical synthesis, detergents, and tertiary mineral oil production.
- MSA can be produced by various processes, for example by
- Chlorine compounds such as chloride contains.
- WO 00/31027 discloses a method of oxidizing dimethyl disulfide with nitric acid to MSA, wherein the nitrogen oxides formed are reacted with O 2 again to nitric acid and this is returned to the process.
- CN 1 810 780 A discloses a process in which ammonium sulfite and / or ammonium bisulfite with dimethyl sulfate to
- Ammonium methanesulfonate and ammonium sulfate is reacted.
- the ammonium sulfate can be precipitated with Ca 2+ as CaSC.
- MSA can be released with sulfuric acid and worked up, again precipitating CaSC.
- EP 906 904 A2 discloses a process in which sodium sulfite is reacted with dimethyl sulfate. From the resulting mixture MSA can be released after acidification with concentrated sulfuric acid. The last three mentioned methods have the advantage that the resulting MSA is virtually free of chlorine compounds.
- the object of the invention was therefore to find cheaper, lower alloyed steels for the production of such building parts, which still have a good corrosion resistance to aqueous MSA solutions.
- a method of handling aqueous solutions of methanesulfonic acid (MSA) having a concentration of 50 to 99 wt.% MSA and a total chlorine content of less than 50 mg / kg in apparatuses wherein the aqueous MSA solution has steel surfaces in Contact is found, wherein the steel is austenitic steels having a chromium content of 15 to 22 wt.% And a nickel content of 9 to 15 wt.%.
- the process of the present invention relates to handling of aqueous solutions of methanesulfonic acid (H3CSO3H, MSA) in devices in which the aqueous MSA solution is in contact with steel surfaces.
- the aqueous MSA solutions in this case have a concentration of 50 to 99 wt.% MSA with respect to the sum of all components of the aqueous solution.
- the concentration is preferably 55 to 90% by weight, more preferably 60 to 80% by weight and most preferably about 70% by weight.
- the aqueous MSA solutions may contain, in addition to water and MSA, customary secondary constituents and / or impurities.
- the total content of chlorine in the aqueous MSA solution is less than 50 mg / kg, preferably less than 25 mg / kg and most preferably less than 10 mg / kg.
- the chlorine may, for example, be chlorine in the form of chloride ions or chlorine bound in organic compounds.
- MSA solutions having such a low total chlorine content can be prepared according to methods known to those skilled in the art, for example by oxidation of dimethyl disulfide using nitric acid by the method disclosed by WO 00/31027, or from ammonium sulfite and / or ammonium hydrogen sulfite by reaction with
- the aqueous MSA solution may also contain sulfate ions as an impurity.
- the amount of sulfate ions should, however, generally be less than 300 mg / kg, preferably less than 200 mg / kg, more preferably less than 100 mg / kg and in particular less than 30 mg / kg.
- Transport or use of MSA solutions It is preferably the storage and / or transport of aqueous MSA solutions.
- the devices may be any type of device used in the handling of aqueous MSA solutions, provided they have steel surfaces that can be contacted by the aqueous MSA solutions.
- the devices may be composed of such steels in their entirety, but may of course include other materials. For example, it may be devices made of a different material or a different steel, which are lined with the steel according to the invention.
- the devices may be closed or open devices, for example devices selected from the group of tanks, storage containers, rail tank cars, tanker trucks, tank containers,
- Reaction boilers dosing devices, pipelines, flanges, pumps or measuring and control components, trays, drums, devices for galvanizing, components of boilers such as flow breakers, stirrers or metering tubes act.
- the steel surfaces which are in contact with the aqueous MSA solution are surfaces of austenitic steels with a
- austenitic steel is known to the person skilled in the art, for example from “Römpp Online, Version 3.5, Georg Thieme Verlag 2009".
- the preferred chromium content is 16 to 20 wt.%, The preferred Ni content 10 to 14 wt.%.
- the steel also comprises manganese, in an amount of 1 to 3 wt.%.
- the steels used according to the invention may contain 1 to 5% by weight of molybdenum, preferably 1 to 5 to 4, particularly preferably 2 to 3% by weight.
- the steels may contain 0.1 to 2 wt.% Titanium, preferably 0.5 to 1 wt.%.
- these may be steels which comprise the elements indicated below (in each case in% by weight):
- Contact is usually less than 40 ° C, without the invention should be limited to this temperature.
- the temperature is 10 to 40 °, preferably 15 to 30 ° C and for example about ambient temperature.
- test duration was 7 days, the temperature 23 ° C. For steel No. 4, the test duration was 1 day.
- Corrosion rate [mm / a] 87600 * ⁇ m / A * p * t, where ⁇ m is the mass change of the sheet [g], A is the area of the sheet [cm 2 ], p is the density of the steel [g / cm 3 ] and t represents the duration of the experiment [h].
- the factor 87600 is used to convert from cm / h to mm / a. The results are shown in Figures 1 and 2.
- Figure 1 shows the corrosion rates (CR) in mm / year for steels # 1 ( Figure 1 a), 2 ( Figure 1 b), and 3 ( Figure 1 c).
- the experiments show that only with the Methansulfonsauren, which have a low content of total chlorine in all experiments low corrosion rates are achieved.
- MSA3 shows with the steel no. 1 and 3 are passable results, but not with steel no. 2.
- the corrosion rate is about 0.01 mm / a, and when using steels no. 2 and 3, well below 0.01 mm / a.
- Figure 2 shows corrosion rates (CR) in mm / year for not
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK10768963.0T DK2496726T3 (da) | 2009-11-03 | 2010-10-26 | Fremgangsmåde til håndtering af vandige methansulfonsyreopløsninger ved hjælp af rustfrit stål |
CA2779546A CA2779546C (en) | 2009-11-03 | 2010-10-26 | Method for handling aqueous methanesulfonic acid solutions |
ES10768963T ES2897482T3 (es) | 2009-11-03 | 2010-10-26 | Método de manipulación de soluciones acuosas de ácido metanosulfónico por medio de acero inoxidable |
PL10768963T PL2496726T3 (pl) | 2009-11-03 | 2010-10-26 | Sposób postępowania z wodnymi roztworami kwasu metanosulfonowego z użyciem stali nierdzewnej |
BR112012010092-0A BR112012010092B1 (pt) | 2009-11-03 | 2010-10-26 | Uso de aços inoxidáveis austeníticos |
AU2010314193A AU2010314193B2 (en) | 2009-11-03 | 2010-10-26 | Method for handling aqueous methanesulfonic acid solutions |
MX2012004857A MX2012004857A (es) | 2009-11-03 | 2010-10-26 | Proceso para el manejo de soluciones acuosas de acido metanosulfonico. |
CN201080047140.4A CN102575329B (zh) | 2009-11-03 | 2010-10-26 | 处理甲磺酸水溶液的方法 |
KR1020127012598A KR101818095B1 (ko) | 2009-11-03 | 2010-10-26 | 메탄설폰산 수용액의 취급 방법 |
JP2012537344A JP5832438B2 (ja) | 2009-11-03 | 2010-10-26 | メタンスルホン酸水性溶液を取り扱う方法 |
RU2012122587/04A RU2012122587A (ru) | 2009-11-03 | 2010-10-26 | Способ обращения с водными растворами метансульфокислоты |
EP10768963.0A EP2496726B1 (de) | 2009-11-03 | 2010-10-26 | Verfahren zur handhabung von wässrigen methansulfonsäurelösungen mittels rostfreier stahl |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09174853 | 2009-11-03 | ||
EP09174853.3 | 2009-11-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011054703A1 true WO2011054703A1 (de) | 2011-05-12 |
Family
ID=43629440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/066181 WO2011054703A1 (de) | 2009-11-03 | 2010-10-26 | Verfahren zur handhabung von wässrigen methansulfonsäurelösungen |
Country Status (18)
Country | Link |
---|---|
US (1) | US8728253B2 (de) |
EP (1) | EP2496726B1 (de) |
JP (1) | JP5832438B2 (de) |
KR (1) | KR101818095B1 (de) |
CN (1) | CN102575329B (de) |
AU (1) | AU2010314193B2 (de) |
BR (1) | BR112012010092B1 (de) |
CA (1) | CA2779546C (de) |
CL (1) | CL2012001154A1 (de) |
DK (1) | DK2496726T3 (de) |
ES (1) | ES2897482T3 (de) |
MX (1) | MX2012004857A (de) |
MY (1) | MY156183A (de) |
PL (1) | PL2496726T3 (de) |
PT (1) | PT2496726T (de) |
RU (1) | RU2012122587A (de) |
TW (1) | TWI487801B (de) |
WO (1) | WO2011054703A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018015191A1 (en) | 2016-07-18 | 2018-01-25 | Basf Se | Low corrosion alkane sulfonic acids for condensation reactions |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160319444A1 (en) | 2013-12-20 | 2016-11-03 | Greene Lyon Group, Inc. | Method and apparatus for recovery of noble metals, including recovery of noble metals from plated and/or filled scrap |
US11136681B2 (en) | 2015-06-24 | 2021-10-05 | Greene Lyon Group, Inc. | Selective removal of noble metals using acidic fluids, including fluids containing nitrate ions |
FR3070686B1 (fr) * | 2017-09-01 | 2019-08-30 | Arkema France | Acide sulfonique faiblement colore |
FR3070687B1 (fr) | 2017-09-01 | 2019-11-22 | Arkema France | Procede de preparation d'acide sulfonique |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3626004A (en) | 1967-12-07 | 1971-12-07 | Pennwalt Corp | Method of preparing alkyl sulfonyl chloride |
JPH04120250A (ja) * | 1990-09-12 | 1992-04-21 | Tokuyama Soda Co Ltd | 脂肪族スルホン酸を含む有機溶媒の収納容器 |
JPH07278854A (ja) * | 1994-04-06 | 1995-10-24 | Tosoh Corp | 金属材料の腐蝕防止方法 |
EP0906904A2 (de) | 1997-10-04 | 1999-04-07 | Grillo-Werke AG | Verfahren zur Herstellung von Methansulfonsäure |
WO2000031027A1 (de) | 1998-11-25 | 2000-06-02 | Basf Aktiengesellschaft | Verfahren zur herstellung von alkansulfonsäuren |
US6120619A (en) * | 1998-01-26 | 2000-09-19 | Elf Atochem, S.A. | Passivation of stainless steels in organosulphonic acid medium |
CN1810780A (zh) | 2005-01-26 | 2006-08-02 | 河北亚诺化工有限公司 | 一种制备甲基磺酸的方法 |
WO2006092439A1 (de) | 2005-03-04 | 2006-09-08 | Basf Aktiengesellschaft | Mikrokapselpulver |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3960671A (en) * | 1974-06-17 | 1976-06-01 | Rohm And Haas Company | Quinones as corrosion inhibitor in distilling alkanoic acids |
EP0062136B1 (de) * | 1981-03-30 | 1985-09-25 | Pennwalt Corporation | Verfahren zur Herstellung von wasserfreien Alkansulfonsäuren |
JPS58184094A (ja) * | 1982-04-21 | 1983-10-27 | Kobe Steel Ltd | 肉盛溶接用帯状電極 |
JPH07100842B2 (ja) * | 1987-04-17 | 1995-11-01 | 株式会社日立製作所 | 耐応力腐食割れ性に優れた原子炉炉心部材 |
US4895977A (en) * | 1988-12-12 | 1990-01-23 | Pennwalt Corporation | Purification of alkanesulfonic acids using ozone |
JP2002241900A (ja) * | 1997-08-13 | 2002-08-28 | Sumitomo Metal Ind Ltd | 耐硫酸腐食性と加工性に優れたオーステナイト系ステンレス鋼 |
CN1224775A (zh) * | 1998-01-26 | 1999-08-04 | 埃勒夫阿托化学有限公司 | 有机磺酸介质中的不锈钢的钝化 |
JP2000336061A (ja) | 1999-03-24 | 2000-12-05 | Kanegafuchi Chem Ind Co Ltd | 改質された有機酸溶液 |
FR2796941B1 (fr) * | 1999-07-27 | 2001-09-14 | Atofina | Purification d'acides alcanesulfoniques |
US6428676B1 (en) * | 2000-11-08 | 2002-08-06 | Enthone Inc. | Process for producing low alpha lead methane sulfonate |
JP2003238520A (ja) * | 2002-02-21 | 2003-08-27 | Mitsubishi Chemicals Corp | スルホン酸の製造方法及びそれを利用したアミド化合物の製造方法 |
JP3736631B2 (ja) * | 2002-05-10 | 2006-01-18 | 新日鐵住金ステンレス株式会社 | 耐硫酸腐食性および耐孔食性に優れたケミカルタンク用鋼 |
EP1944282B1 (de) * | 2005-11-01 | 2016-06-29 | Asahi Kasei Chemicals Corporation | Verfahren zur herstellung von isobuten und tertiärem butanol |
JP2009538338A (ja) | 2006-05-22 | 2009-11-05 | イーラン ファーマスーティカルズ、インコーポレイテッド | 治療用、農業用及び食品添加用化合物のポリマー複合体の調製 |
-
2010
- 2010-10-26 CN CN201080047140.4A patent/CN102575329B/zh active Active
- 2010-10-26 MX MX2012004857A patent/MX2012004857A/es active IP Right Grant
- 2010-10-26 WO PCT/EP2010/066181 patent/WO2011054703A1/de active Application Filing
- 2010-10-26 DK DK10768963.0T patent/DK2496726T3/da active
- 2010-10-26 RU RU2012122587/04A patent/RU2012122587A/ru unknown
- 2010-10-26 ES ES10768963T patent/ES2897482T3/es active Active
- 2010-10-26 JP JP2012537344A patent/JP5832438B2/ja active Active
- 2010-10-26 KR KR1020127012598A patent/KR101818095B1/ko active IP Right Grant
- 2010-10-26 CA CA2779546A patent/CA2779546C/en active Active
- 2010-10-26 PL PL10768963T patent/PL2496726T3/pl unknown
- 2010-10-26 PT PT107689630T patent/PT2496726T/pt unknown
- 2010-10-26 MY MYPI2012001697A patent/MY156183A/en unknown
- 2010-10-26 BR BR112012010092-0A patent/BR112012010092B1/pt active IP Right Grant
- 2010-10-26 EP EP10768963.0A patent/EP2496726B1/de active Active
- 2010-10-26 AU AU2010314193A patent/AU2010314193B2/en active Active
- 2010-11-02 TW TW099137670A patent/TWI487801B/zh active
- 2010-11-02 US US12/917,796 patent/US8728253B2/en active Active
-
2012
- 2012-05-02 CL CL2012001154A patent/CL2012001154A1/es unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3626004A (en) | 1967-12-07 | 1971-12-07 | Pennwalt Corp | Method of preparing alkyl sulfonyl chloride |
JPH04120250A (ja) * | 1990-09-12 | 1992-04-21 | Tokuyama Soda Co Ltd | 脂肪族スルホン酸を含む有機溶媒の収納容器 |
JPH07278854A (ja) * | 1994-04-06 | 1995-10-24 | Tosoh Corp | 金属材料の腐蝕防止方法 |
EP0906904A2 (de) | 1997-10-04 | 1999-04-07 | Grillo-Werke AG | Verfahren zur Herstellung von Methansulfonsäure |
US6120619A (en) * | 1998-01-26 | 2000-09-19 | Elf Atochem, S.A. | Passivation of stainless steels in organosulphonic acid medium |
WO2000031027A1 (de) | 1998-11-25 | 2000-06-02 | Basf Aktiengesellschaft | Verfahren zur herstellung von alkansulfonsäuren |
CN1810780A (zh) | 2005-01-26 | 2006-08-02 | 河北亚诺化工有限公司 | 一种制备甲基磺酸的方法 |
WO2006092439A1 (de) | 2005-03-04 | 2006-09-08 | Basf Aktiengesellschaft | Mikrokapselpulver |
Non-Patent Citations (4)
Title |
---|
"Römpp Online", 2009, GEORG THIEME VERLAG |
ARKEMA: "Arkema Methanesulfonic Acid - Cleaning and Descaling", APPLICATION INFORMATION, 10 January 2007 (2007-01-10), pages 1 - 4, XP002627165, Retrieved from the Internet <URL:www.arkema-inc.com/literature/pdf/987.pdf> * |
GAUR, ET AL: "Corrosion of metals and alloys in methanesulfonic acid", BRITISH CORROSION JOURNAL, vol. 34, no. 1, 1999 - 1999, uk, XP009145687, ISSN: 0007-0599 * |
See also references of EP2496726A1 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018015191A1 (en) | 2016-07-18 | 2018-01-25 | Basf Se | Low corrosion alkane sulfonic acids for condensation reactions |
Also Published As
Publication number | Publication date |
---|---|
CN102575329B (zh) | 2017-03-08 |
CL2012001154A1 (es) | 2012-08-17 |
KR20120101391A (ko) | 2012-09-13 |
TWI487801B (zh) | 2015-06-11 |
US20110108120A1 (en) | 2011-05-12 |
JP5832438B2 (ja) | 2015-12-16 |
BR112012010092A2 (pt) | 2016-05-31 |
PT2496726T (pt) | 2021-11-19 |
BR112012010092B1 (pt) | 2018-06-05 |
AU2010314193B2 (en) | 2016-07-07 |
CA2779546A1 (en) | 2011-05-12 |
KR101818095B1 (ko) | 2018-01-12 |
JP2013510109A (ja) | 2013-03-21 |
PL2496726T3 (pl) | 2022-01-31 |
CN102575329A (zh) | 2012-07-11 |
DK2496726T3 (da) | 2021-12-06 |
RU2012122587A (ru) | 2013-12-10 |
US8728253B2 (en) | 2014-05-20 |
AU2010314193A1 (en) | 2012-05-03 |
MX2012004857A (es) | 2012-09-07 |
MY156183A (en) | 2016-01-15 |
EP2496726B1 (de) | 2021-09-08 |
EP2496726A1 (de) | 2012-09-12 |
ES2897482T3 (es) | 2022-03-01 |
TW201139700A (en) | 2011-11-16 |
CA2779546C (en) | 2018-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2496726B1 (de) | Verfahren zur handhabung von wässrigen methansulfonsäurelösungen mittels rostfreier stahl | |
DE4013974C1 (de) | ||
EP0334410B1 (de) | Nickel-Chrom-Molybdän-Legierung | |
EP0657556A1 (de) | Austenitische Legierungen und deren Verwendung | |
DE102005023729A1 (de) | Korrosionsschutzmittel und Verfahren zu dessen stromfreier Applikation | |
DE60111925T2 (de) | Korrosionsbeständige austenitische legierung | |
DE10392186T5 (de) | Auf Nickel-basierende Legierung mit herausragender Korrosionsbeständigkeit gegen superkritische Wasser-Umgebungen, die anorganische Säuren enthalten | |
DE19963522B4 (de) | Legierungsstahl mit überlegener Korrosionsbeständigkeit gegen Alkalimetalloxide enthaltende Salzschmelzen | |
EP3607100B1 (de) | Verfahren zum entfernen von fluorid aus einer zinkhaltigen lösung bzw. suspension, entfluoridierte zinksulfat-lösung und deren verwendung sowie verfahren zur herstellung von zink und von fluorwasserstoff bzw. flusssäure | |
EP0001972B1 (de) | Verfahren zur Herstellung von Hydroxylammoniumsalzen in Reaktionsgefässen aus Edelstahl | |
EP0200862B1 (de) | Verwendung einer gegen hochkonzentrierte Schwefelsäure und Oleum beständigen Eisen-Chrom-Nickel-Legierung | |
EP0723029B1 (de) | Nickellegierung | |
WO2015150387A1 (de) | Zweistufen-vorbehandlung von aluminium umfassend beize und passivierung | |
EP0249792B1 (de) | Verwendung einer chromhaltigen Nickellegierung | |
WO2023168467A1 (de) | Verfahren zur entfernung eisenoxidischer ablagerungen | |
CH682661A5 (de) | Verfahren zur Reduktion aromatischer Nitroverbindungen mit Hilfe dreiwertiger Titanverbindungen. | |
DE19628816A1 (de) | Verfahren zur Herstellung von Parawolframat | |
DE3815456A1 (de) | Waessrige loesung zur oxidation, entkeimung und desodorierung sowie verfahren zur herstellung dieser loesung | |
ZA200700114B (en) | Austenitic stainless steel composition and use thereof for the production of structural parts for land transport means and containers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080047140.4 Country of ref document: CN |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10768963 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010314193 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2012/004857 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2779546 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12012500874 Country of ref document: PH |
|
ENP | Entry into the national phase |
Ref document number: 2010314193 Country of ref document: AU Date of ref document: 20101026 Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1201002005 Country of ref document: TH |
|
REEP | Request for entry into the european phase |
Ref document number: 2010768963 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010768963 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012537344 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 20127012598 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 4719/CHENP/2012 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012122587 Country of ref document: RU |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112012010092 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112012010092 Country of ref document: BR Kind code of ref document: A2 Effective date: 20120427 |