EP1996333A1 - Flotationsreagenz für silikate - Google Patents
Flotationsreagenz für silikateInfo
- Publication number
- EP1996333A1 EP1996333A1 EP07722940A EP07722940A EP1996333A1 EP 1996333 A1 EP1996333 A1 EP 1996333A1 EP 07722940 A EP07722940 A EP 07722940A EP 07722940 A EP07722940 A EP 07722940A EP 1996333 A1 EP1996333 A1 EP 1996333A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silicate
- flotation
- alkyl ether
- use according
- collector
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/0043—Organic compounds modified so as to contain a polyether group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Definitions
- the present invention relates to the use of collectors in the flotation treatment of silicate-containing minerals and ores, in particular iron ore with the aid of fatty alkyl ether alkylamine alkoxylate.
- silicates are naturally occurring ores and minerals.
- these include calcite, phosphate ore and feldspar.
- the silicate content reduces the quality of the iron ore and interferes with iron production.
- the iron ore is separated from the silicate in addition to the magnetic separation by inverse flotation.
- the ground iron ore is brought together in a flotation cell with water and flotation reagents, wherein the silicate is discharged through the use of a collector with the foam, while the iron ore remains back in the so-called pulp.
- fatty amines alkyl ether amines and alkyl ether diamines are used as silicate collectors. These are known under the trade name Flotigam ®.
- Alkyl ether amines and alkyl ether diamines are mostly used in their partially neutralized forms as partial acetates as described in US Pat. No. 4,319,987. The reason for this is the better solubility of the partially neutralized amine functions.
- silicate flotation collectors described in the prior art show insufficient selectivity and yield.
- the object of the present invention was therefore to provide an improved collector for the silicate flotation.
- the invention thus relates to the use of a compound of the formula (I)
- R 1 is a hydrocarbon group having 1 to 40 carbon atoms
- R 2 is an aliphatic hydrocarbon group having 2 to 4 carbon atoms
- R 3 is an alkoxy group
- n is a number between 1 and 50
- m is 1 or 2
- Another object of the invention is a method for flotation of silicate-containing mineral by bringing the flotation reagent according to the invention with the silicate-containing mineral in contact.
- the invention furthermore relates to a composition comprising 1 to 99% by weight of a silicate flotation collector which is an alkyl ether amine, alkyl ether diamine, alkylamine or quaternary ammonium salt and 1 to 99% by weight of a compound of the formula I.
- the ratio of alkyletheramine, alkyletherdiamine, alkylamine or quaternary ammonium salt to the compound of formula I is preferably between 98: 2 and 75:25.
- R 1 is an aliphatic hydrocarbon group. It is further preferred that R 1 comprises 4 to 22, in particular 6 to 20, and especially 8 to 14 carbon atoms. Particularly preferred are 2-ethylhexyl, Isononan-, Isodekan- and Isotridekanreste.
- R 2 is a C 2 H 4 - or a C 3 H 6 -GmPPe.
- R 3 is a C 2 -C 4 -alkoxy group, in particular an ethoxy or propoxy group. R 3 may also stand for a mixed alkoxy group.
- n is a number between 2 and 40.
- n stands for 2.
- silicate float collectors which are an alkyl ether amine, alkyl ether diamine, alkyl amine or quaternary ammonium salt, and those with A compound of formula I can be used together, it is preferably one or more of the compounds of formulas (II) to (V).
- R 4 is a hydrocarbon group of 1-40, preferably 8 to 32 carbon atoms and R 5 is an aliphatic hydrocarbon group of 2-4 carbon atoms;
- R 6 corresponds to a hydrocarbon group of 1-40, preferably 8 to 32 carbon atoms
- R 7 and R 8 correspond to one or more aliphatic hydrocarbon group having 2 to 4 carbon atoms
- R 9 , R 10 , R 11 and R 12 correspond to one or more hydrocarbon groups of 1 to 22 carbon atoms and A " corresponds to a suitable anion;
- R 13 corresponds to a hydrocarbon group having 1-40, preferably 8 to 32 carbon atoms.
- the use of the flotation reagent according to the invention can also be carried out in combination with foaming agents and pushers, as known from the prior art.
- hydrophilic polysaccharides such as modified starch, carboxymethylcellulose, or gum arabic are added in dosages of 10 to 1000 g / t as a pusher.
- the silicate flotation is preferably carried out at a pH of 7-12, in particular 8-11, which is for example adjusted with sodium hydroxide.
- the following table represents the flotative results of the collector according to the invention in comparison to the standard reagent. Flotation experiments have been carried out on a siliceous iron ore.
- Table 1 Effectiveness of the collector B according to the invention in comparison to the standard collector A.
- the results show a consistently increased percentage application with an approximately constant Fe content by the Flotationsreagenz B according to the invention over the standard collector A.
- the mixture C consisting of 10% of the inventive collector B and 90% of the standard collector A, shows a significantly increased Application to the standard collector A.
- the flotation reagent according to the invention is applicable in a wide pH range, for example 7 to 12, preferably 8 to 11, and is added to the aqueous pulp in a concentration of preferably between 0.001 and 1.0 kg / ton of crude mineral.
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006010939A DE102006010939A1 (de) | 2006-03-09 | 2006-03-09 | Flotationsreagenz für Silikate |
PCT/EP2007/001628 WO2007101575A1 (de) | 2006-03-09 | 2007-02-26 | Flotationsreagenz für silikate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1996333A1 true EP1996333A1 (de) | 2008-12-03 |
EP1996333B1 EP1996333B1 (de) | 2013-04-17 |
Family
ID=37983358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722940.9A Active EP1996333B1 (de) | 2006-03-09 | 2007-02-26 | Flotationsreagenz für silikate |
Country Status (10)
Country | Link |
---|---|
US (1) | US8205753B2 (de) |
EP (1) | EP1996333B1 (de) |
AU (1) | AU2007222691B2 (de) |
BR (1) | BRPI0708724A2 (de) |
CA (1) | CA2645156C (de) |
DE (1) | DE102006010939A1 (de) |
NO (1) | NO20083886L (de) |
RU (1) | RU2426597C2 (de) |
WO (1) | WO2007101575A1 (de) |
ZA (1) | ZA200807347B (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006019561A1 (de) | 2006-04-27 | 2007-10-31 | Clariant International Limited | Flotationsreagenz für silikathaltige Mineralien |
EP2017009B1 (de) * | 2007-07-20 | 2013-07-03 | Clariant (Brazil) S.A. | Eisenerz-Umkehrflotation mittels Kollektoren in wässriger Nanoemulsion |
CN101337204B (zh) * | 2008-08-13 | 2011-03-30 | 中南大学 | 一种双季铵盐类化合物在硅酸盐矿物浮选上的应用及硅酸盐矿物浮选捕收剂 |
DE102010004893A1 (de) | 2010-01-19 | 2011-07-21 | Clariant International Limited | Flotationsreagenz für magnetit- und/oder hämatithaltige Eisenerze |
CN103476505B (zh) * | 2011-04-13 | 2016-01-06 | 巴斯夫欧洲公司 | 二胺化合物及其在从铁矿石中反泡沫浮选硅酸盐中的用途 |
EP2679311A1 (de) * | 2012-06-30 | 2014-01-01 | Clariant S.A., Brazil | Schaumprävention beim Umkehrflotationsverfahren zur Reinigung von Calciumcarbonat |
US9457357B2 (en) * | 2012-11-28 | 2016-10-04 | Georgia-Pacific Chemicals Llc | Mixed collector compositions |
BR112017001835B1 (pt) * | 2014-08-01 | 2023-02-07 | Samarco Mineração S.a. | Processo para concentração de um minério de ferro |
CA3027719C (en) * | 2016-07-08 | 2023-11-07 | Akzo Nobel Chemicals International B.V. | Process to treat magnetite ore and collector composition |
WO2020007773A1 (en) * | 2018-07-03 | 2020-01-09 | Nouryon Chemicals International B.V. | Collector composition containing biodegradable compound and process for treating siliceous ores |
CN113603608B (zh) * | 2021-08-09 | 2023-11-03 | 山东富斯特油脂科技有限公司 | 糖基丙胺类化合物、制备方法及其作为浮选剂的应用 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2389763A (en) * | 1941-04-24 | 1945-11-27 | Emulsol Corp | Separation of mineral values from ores |
US3398197A (en) | 1965-02-23 | 1968-08-20 | Armour Ind Chem Co | Nu-secondary-alkyl tertiary amine compounds |
FR1469430A (fr) * | 1965-02-23 | 1967-02-10 | Armour & Co | nu-alkyle secondaire-amines tertiaires |
US3363758A (en) * | 1966-12-08 | 1968-01-16 | Ashland Oil Inc | Use of primary aliphatic ether amine acid salts in froth flotation process |
DE1259264B (de) | 1966-12-24 | 1968-01-25 | Hoechst Ag | Verfahren zur Flotation von Sylvin aus Kali-Rohsalzen |
FR2104657B1 (de) | 1970-05-08 | 1973-12-21 | Pierrefitte Auby Sa | |
US3834533A (en) | 1972-09-11 | 1974-09-10 | Continental Oil Co | Concentration of oxide copper ores by flotation separation |
SE386083B (sv) | 1975-01-15 | 1976-08-02 | Berol Kemi Ab | Forfarande for flotation av bly-, uran- och sellsynta jordartsmineral ur malmer |
FR2367820A1 (fr) * | 1976-10-18 | 1978-05-12 | Ceca Sa | Procede de flottation de minerais oxydes |
US4235811A (en) | 1979-04-02 | 1980-11-25 | Texaco Development Corp. | Compounds from aminated alkoxylated aliphatic alcohol |
US4304690A (en) * | 1979-04-02 | 1981-12-08 | Texaco Development Corp. | Compounds from aminated alkoxylated aliphatic alcohol |
BR8008793A (pt) * | 1979-08-15 | 1981-06-23 | Sherex Chem | Processo de flotacao e mistura aminica aquosa aperfeicoada |
US4278533A (en) * | 1980-02-07 | 1981-07-14 | The Dow Chemical Company | Conditioner for flotation of oxidized coal |
US4287052A (en) * | 1980-04-07 | 1981-09-01 | The Dow Chemical Company | Alkyl-substituted phenyl ether amine collectors in flotation |
US4319987A (en) * | 1980-09-09 | 1982-03-16 | Exxon Research & Engineering Co. | Branched alkyl ether amines as iron ore flotation aids |
CA1211235A (en) | 1983-11-22 | 1986-09-09 | Richard R. Tamosiunis | Process for the flotation of insol from potash ore |
US4830739A (en) | 1985-02-20 | 1989-05-16 | Berol Kemi Ab | Process and composition for the froth flotation beneficiation of iron minerals from iron ores |
EP0310720A1 (de) * | 1987-10-09 | 1989-04-12 | The Dow Chemical Company | Verfahren zur Verwendung fetter Ester von Alkanolaminhydroxyalkylaten als Konditionierungsmittel für oxidierte Kohle |
FR2625115B1 (fr) | 1987-12-24 | 1990-10-19 | Denain Anzin Mineraux Refract | Procede d'enrichissement de l'andalousite |
DE3818482A1 (de) | 1988-05-31 | 1989-12-07 | Henkel Kgaa | Tensidmischungen als sammler fuer die flotation nichtsulfidischer erze |
US4995965A (en) | 1988-06-13 | 1991-02-26 | Akzo America Inc. | Calcium carbonate beneficiation |
US5182039A (en) * | 1991-03-29 | 1993-01-26 | Exxon Chemical Patents, Inc. | Synergistic fluorinated ore flotation aids |
DE4133063A1 (de) * | 1991-10-04 | 1993-04-08 | Henkel Kgaa | Verfahren zur herstellung von eisenerzkonzentraten durch flotation |
US5261539A (en) | 1992-10-07 | 1993-11-16 | American Cyanamid Company | Flotation process for purifying calcite |
FR2700976B1 (fr) | 1993-02-04 | 1995-04-21 | Mircal | Procédé de récupération des micas par flottation et micas ainsi obtenus. |
SE501623C2 (sv) | 1993-05-19 | 1995-04-03 | Berol Nobel Ab | Sätt att flotera kalciumkarbonatmalm samt ett flotationsreagens därför |
US5540337A (en) | 1994-04-04 | 1996-07-30 | Baker Hughes Incorporated | Alkyloxyalkaneamines useful as cationic froth flotation collectors |
SE521949C2 (sv) * | 1997-11-27 | 2003-12-23 | Akzo Nobel Nv | Förfarande för skumflotation av silikatinnehållande järnmalm |
WO2000042140A1 (en) * | 1999-01-11 | 2000-07-20 | Huntsman Petrochemical Corporation | Surfactant compositions containing alkoxylated amines |
SE514435C2 (sv) | 1999-04-20 | 2001-02-26 | Akzo Nobel Nv | Kvartära ammoniumföreningar för skumflotation av silikater från järnmalm |
DE102006019561A1 (de) | 2006-04-27 | 2007-10-31 | Clariant International Limited | Flotationsreagenz für silikathaltige Mineralien |
-
2006
- 2006-03-09 DE DE102006010939A patent/DE102006010939A1/de not_active Withdrawn
-
2007
- 2007-02-26 BR BRPI0708724-1A patent/BRPI0708724A2/pt not_active Application Discontinuation
- 2007-02-26 RU RU2008140181/03A patent/RU2426597C2/ru active
- 2007-02-26 WO PCT/EP2007/001628 patent/WO2007101575A1/de active Application Filing
- 2007-02-26 CA CA2645156A patent/CA2645156C/en active Active
- 2007-02-26 EP EP07722940.9A patent/EP1996333B1/de active Active
- 2007-02-26 AU AU2007222691A patent/AU2007222691B2/en active Active
- 2007-02-26 US US12/225,012 patent/US8205753B2/en active Active
-
2008
- 2008-08-26 ZA ZA200807347A patent/ZA200807347B/xx unknown
- 2008-09-10 NO NO20083886A patent/NO20083886L/no not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2007101575A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8205753B2 (en) | 2012-06-26 |
AU2007222691A1 (en) | 2007-09-13 |
AU2007222691B2 (en) | 2010-09-16 |
RU2008140181A (ru) | 2010-04-20 |
EP1996333B1 (de) | 2013-04-17 |
CA2645156C (en) | 2014-01-14 |
RU2426597C2 (ru) | 2011-08-20 |
BRPI0708724A2 (pt) | 2011-06-07 |
CA2645156A1 (en) | 2007-09-13 |
NO20083886L (no) | 2008-09-10 |
US20090114573A1 (en) | 2009-05-07 |
DE102006010939A1 (de) | 2007-09-13 |
WO2007101575A1 (de) | 2007-09-13 |
ZA200807347B (en) | 2009-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1996333B1 (de) | Flotationsreagenz für silikate | |
EP2012929B1 (de) | Flotationsreagenz für silikathaltige mineralien | |
DE102008056338B4 (de) | Flotationsreagenz für silikathaltige Mineralien | |
EP2525915B1 (de) | Flotationsreagenz für magnetit- und/oder hämatithaltige eisenerze | |
DE1558950A1 (de) | Verwendung von Salzen von primaeren aliphatischen AEtheraminen in Schaumaufbereitungsverfahren | |
EP0062304B1 (de) | Verfahren zur Herstellung von Azopigmentpräparationen und ihre Verwendung | |
EP2077989B1 (de) | Verfahren zur herstellung von 2,2'-aminoethoxyethanol in elektro-qualität | |
DD237482A1 (de) | Verfahren fuer die flotation von erzen | |
EP0193109B1 (de) | Verfahren zur Aufbereitung von Kaolinit durch Flotation | |
EP0094630B2 (de) | Verfahren zum Entfernen von Cadmium aus durch Aufschluss von Rohphosphaten mit Schwefelsäure erhaltener Rohphosphorsäure | |
DE1619869B2 (de) | Verfahren zur herstellung eines stabilen methylsiloxanhaltigen entschaeumungsmittels | |
EP0586850B1 (de) | Verfahren zur Herstellung von Thixotropiermitteln | |
DE10217693C1 (de) | Verwendung von Fettaminsalzen in Kombination mit Fettsäuren als Hilfsmittel für die Flotation von Kalisalzen (Sylvinit) | |
DE3224302C2 (de) | Flotationshilfsmittel zur Gewinnung von Phosphaten und Kali | |
DE4407028C2 (de) | Verwendung von quaternierten organischen Ammoniumverbindungen zur Beschleunigung der Entwässerung bei der Scherbenbildung von keramischen Schlickern | |
DE3784630T2 (de) | Tri- oder tetra-2-hydroxybenzyl-1,2-diaminoalkan-derivate, verfahren zu ihrer herstellung und ihre verwendung fuer die extraktion von gallium. | |
DE2115965C3 (de) | Verfahren zur Herstellung von Mordenit und dessen Verwendung als Trager für Katalysatoren fur Kohlenwasserstoff-Umwandlungsverfahren | |
CH620660A5 (de) | ||
DE1261454B (de) | Aminsammler fuer die Sylvinflotation | |
DE614912C (de) | Schwimmaufbereitungsverfahren fuer sulfidische Kupfererze | |
DE931703C (de) | Verfahren zur flotativen Aufbereitung von Kalirohsalzen, die durch Schlaemme verunreinigt sind | |
DE2036051A1 (de) | Verfahren zur Entfernung von Zellulose aus wässrigen Zellulosesuspensionen | |
DE1618756C (de) | ||
AT224089B (de) | Verfahren zum Extrahieren organischer Verbindungen aus Lösungen | |
DE1150962B (de) | Verfahren zur Abtrennung von Wolframverbindungen aus waessrigen, wolframhaltigen Loesungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20081009 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE ES FI SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CLARIANT FINANCE (BVI) LIMITED |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PEDAIN, KLAUS-ULRICH Inventor name: RAU, TOBIAS |
|
17Q | First examination report despatched |
Effective date: 20090409 |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): AT DE ES FI SE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): FI SE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R108 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): FI SE |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R108 Effective date: 20130403 |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
26 | Opposition filed |
Opponent name: AKZO NOBEL CHEMICALS INTERNATIONAL BV Effective date: 20140117 |
|
PLAF | Information modified related to communication of a notice of opposition and request to file observations + time limit |
Free format text: ORIGINAL CODE: EPIDOSCOBS2 |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: CLARIANT INTERNATIONAL LTD |
|
PLCK | Communication despatched that opposition was rejected |
Free format text: ORIGINAL CODE: EPIDOSNREJ1 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
PLBN | Opposition rejected |
Free format text: ORIGINAL CODE: 0009273 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: OPPOSITION REJECTED |
|
R26 | Opposition filed (corrected) |
Opponent name: AKZO NOBEL CHEMICALS INTERNATIONAL BV Effective date: 20140117 |
|
27O | Opposition rejected |
Effective date: 20151109 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20160216 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170226 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20230222 Year of fee payment: 17 |