EP0463905A1 - Verfahren zur Entfernung von Siliziumverbindungen aus Beizbädern und Einrichtung dafür - Google Patents
Verfahren zur Entfernung von Siliziumverbindungen aus Beizbädern und Einrichtung dafür Download PDFInfo
- Publication number
- EP0463905A1 EP0463905A1 EP91401525A EP91401525A EP0463905A1 EP 0463905 A1 EP0463905 A1 EP 0463905A1 EP 91401525 A EP91401525 A EP 91401525A EP 91401525 A EP91401525 A EP 91401525A EP 0463905 A1 EP0463905 A1 EP 0463905A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pickling bath
- pickling
- silicic compounds
- bath
- compounds
- 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
- 238000005554 pickling Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 25
- 150000003377 silicon compounds Chemical class 0.000 title abstract description 8
- -1 iron ions Chemical class 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 238000005119 centrifugation Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000003303 reheating Methods 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010908 decantation Methods 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 235000013980 iron oxide Nutrition 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical class Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/01—Waste acid containing iron
Definitions
- EP-0 141 034 discloses a process for separating a silicic compound from a spent pickling bath for steels.
- the spent pickling bath passes through a filter made of a material adsorbing the silica compound.
- Such a method has the drawback of requiring an operation for regenerating the adsorbent materials constituting the filter. In fact, during its use, the adsorbent filter becomes clogged and the flow rate and the volume of the pickling bath treated decreases progressively.
- pickling baths after having been previously concentrated are thermally decomposed by known methods and are in particular calcined in an oven of the RUTHNER type, which makes it possible to recover iron oxides, essentially in Fe2O3 form.
- the sufficiently pure iron oxides can be used as colorants, for example in paints and cosmetic products, or as excipients in the pharmaceutical industry. They are also used in the manufacture of magnetic components or still in the manufacture of cements to improve their mechanical characteristics.
- the silica content of the iron oxides currently recovered from the pickling baths is at least 350 ppm, while it would be desirable to lower it below 100 ppm for the applications mentioned above.
- the invention also relates to an installation comprising means for regenerating the pickling bath containing iron ions and silicic compounds, characterized in that the regenerating means further comprise at least one controlled cooling tank for the pickling bath and for reheating the latter and at least one device for separating the precipitated silica compound (s) from the pickling bath, the separation device advantageously consisting of a centrifugation device and / or a filtration device comprising filters of lower porosity or equal to 20 ⁇ m.
- FIG. 1 represents a diagram of an installation for pickling steel sheets.
- the installation comprises a pickling unit 1 at the outlet of which the pickling bath containing water, hydrochloric acid, iron chlorides and one or more silicic compounds is depleted in acid and enriched in iron.
- the bath temperature is around 90 ° C, it contains 30 to 60 g / l of hydrochloric acid and 90 to 140 g / l of iron ions, and optionally a compound preventing attack of the substrate.
- the spent pickling bath is then directed to an evaporator 2 to be concentrated there.
- the evaporator 2 consists of a liquid-gas exchanger supplied by hot gases leaving a device thermal 3 via a cyclone 4.
- the evaporator 2 makes it possible to preheat the bath while concentrating it by evaporation of the water contained in it.
- the concentrated spent bath recovered at the outlet of the evaporator 2 is directed to cooling and reheating tanks 5 and 6, where it is cooled to a temperature equal to or less than 60 ° C. preferably with a cooling rate about 2 ° C / min.
- the pickling bath is then allowed to cool for a period of at least 2 hours, which makes it possible to create favorable conditions for the silicic compounds to crystallize in the form of relatively large particles.
- the bath is heated so that the dissolution, in particular of the iron chloride, is sufficient and to obtain a viscosity of the bath allowing separation, for example by filtration of the silicic compound (s).
- the rate of reheating is not critical and can vary from a few minutes to several hours.
- the pickling bath is advantageously centrifuged and / or filtered on the centrifugation and / or automatic filtration unit 7 which makes it possible to collect the precipitated silicic compound (s) and not redissolved.
- the pickling bath depleted in silicic compounds is then directed to the upper part of the thermal device 3 where it is treated to obtain iron oxide. Iron oxide is collected at the base of the thermal device 3.
- the thermal device 3 known for implementing, for example, the RUTHNER process, the vapors of water and of acid produced containing a residual quantity of iron oxide are sent into a cyclone 4 which separates the iron oxide. The residual iron oxide thus separated is reintroduced into the thermal device 3.
- the hot gases taken off at the head of cyclone 4 are used for the operation of the evaporator 2.
- the hot gases essentially comprising water vapor and hydrochloric acid pass through an absorber 8 supplied with water in its upper part by water coming from the rinsing unit 9 used for rinsing the substrates leaving the pickling unit 1.
- the acid-depleted vapors exiting at the upper part of the absorber 8 are directed to a smoke washing device 10 supplied with water by an additional water 11.
- the smoke washing water is added to the supplying water the absorber 8 from the rinsing unit 9.
- a regenerated bath is collected containing a hydrochloric acid solution which can again be used for a second cycle of pickling and regeneration.
- the process and the device according to the invention for the substantial elimination of the silicic compounds from the pickling baths are easily transposable in an industrial environment and make it possible to obtain iron oxide whose silica content is less than 100 ppm.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9007519 | 1990-06-15 | ||
FR9007519A FR2663344B1 (fr) | 1990-06-15 | 1990-06-15 | Procede de separation de composes siliciques des bains de decapage et installation pour sa mise en óoeuvre. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0463905A1 true EP0463905A1 (de) | 1992-01-02 |
EP0463905B1 EP0463905B1 (de) | 1994-09-07 |
Family
ID=9397677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91401525A Expired - Lifetime EP0463905B1 (de) | 1990-06-15 | 1991-06-10 | Verfahren zur Entfernung von Siliziumverbindungen aus Beizbädern und Einrichtung dafür |
Country Status (7)
Country | Link |
---|---|
US (1) | US5296001A (de) |
EP (1) | EP0463905B1 (de) |
JP (1) | JP3040201B2 (de) |
AT (1) | ATE111164T1 (de) |
DE (1) | DE69103825T2 (de) |
ES (1) | ES2063463T3 (de) |
FR (1) | FR2663344B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0602758A1 (de) * | 1992-12-14 | 1994-06-22 | MANNESMANN Aktiengesellschaft | Verfahren und Vorrichtung zur Säureentschlammung |
FR2916205A1 (fr) * | 2007-05-16 | 2008-11-21 | Siemens Vai Metals Tech Sas | Installation et procede pour le traitement de solutions de decapage de bandes d'acier au silicium |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT403697B (de) * | 1995-04-24 | 1998-04-27 | Chemikalien & Tech Service Ges | Verfahren zur entkieselung von wässrigen, sauren, vorzugsweise salzsauren lösungen sowie herstellung von kieselsäurearmem metalloxid |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432661A (fr) * | 1965-02-09 | 1966-03-25 | Loire Atel Forges | Perfectionnements apportés au traitement des bains de décapage des aciers au silicium |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184955A (en) * | 1975-09-30 | 1980-01-22 | Arvanitakis Kostas S | Method and apparatus for clarifying liquids through settling |
DE3019737C2 (de) * | 1980-05-23 | 1982-09-02 | Westfalia Separator Ag, 4740 Oelde | Schleudertrommel zum Klären und Trennen von Schleuderflüssigkeiten |
JPS59111930A (ja) * | 1982-12-16 | 1984-06-28 | Nippon Steel Corp | 塩酸酸洗廃液から酸化鉄を製造する方法 |
JPS59169902A (ja) * | 1983-03-14 | 1984-09-26 | Tadayoshi Karasawa | 廃酸精製処理工程の改良 |
US4636317A (en) * | 1985-07-16 | 1987-01-13 | Fluid Recycling Services, Inc. | Recycling of metalworking fluids |
JPS63144122A (ja) * | 1986-12-03 | 1988-06-16 | Sumitomo Metal Ind Ltd | 塩酸酸洗廃液からけい素を除去する方法 |
JPS63144123A (ja) * | 1986-12-08 | 1988-06-16 | Sumitomo Metal Ind Ltd | 鋼材の塩酸酸洗廃液中のけい素分の除去方法 |
JPS63242932A (ja) * | 1987-03-30 | 1988-10-07 | Sumitomo Metal Ind Ltd | 鋼材の塩酸酸洗廃液中のけい素分の除去方法 |
JPH0742118B2 (ja) * | 1987-12-10 | 1995-05-10 | 日本鋼管株式会社 | 第一鉄イオン含有酸溶液の精製方法 |
-
1990
- 1990-06-15 FR FR9007519A patent/FR2663344B1/fr not_active Expired - Lifetime
-
1991
- 1991-06-10 ES ES91401525T patent/ES2063463T3/es not_active Expired - Lifetime
- 1991-06-10 EP EP91401525A patent/EP0463905B1/de not_active Expired - Lifetime
- 1991-06-10 AT AT91401525T patent/ATE111164T1/de not_active IP Right Cessation
- 1991-06-10 DE DE69103825T patent/DE69103825T2/de not_active Expired - Fee Related
- 1991-06-14 JP JP3169267A patent/JP3040201B2/ja not_active Expired - Fee Related
-
1993
- 1993-03-11 US US08/029,913 patent/US5296001A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432661A (fr) * | 1965-02-09 | 1966-03-25 | Loire Atel Forges | Perfectionnements apportés au traitement des bains de décapage des aciers au silicium |
Non-Patent Citations (4)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 12, no. 405 (C-539)[3252], 26 octobre 1988; & JP-A-63 144 123 (SUMITOMO METAL IND., LTD) 16-06-1988 * |
PATENT ABSTRACTS OF JAPAN, vol. 13, no. 49 (C-565)[3397], 3 février 1989; & JP-A-63 242 932 (SUMITOMO METAL IND.) 07-10-1988 * |
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 225 (C-247)[1662], 16 octobre 1984; & JP-A-59 111 930 (SHIN NIPPON SEITETSU K.K.) 28-06-1984 * |
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 21 (C-263)[1744], 29 janvier 1985; & JP-A-59 169 902 (TADAYOSHI KARASAWA) 26-09-1984 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0602758A1 (de) * | 1992-12-14 | 1994-06-22 | MANNESMANN Aktiengesellschaft | Verfahren und Vorrichtung zur Säureentschlammung |
FR2916205A1 (fr) * | 2007-05-16 | 2008-11-21 | Siemens Vai Metals Tech Sas | Installation et procede pour le traitement de solutions de decapage de bandes d'acier au silicium |
WO2008141716A1 (fr) * | 2007-05-16 | 2008-11-27 | Siemens Vai Metals Technologies Sas | Installation et procede pour le traitement de solutions de decapage de bandes d'acier au silicium |
Also Published As
Publication number | Publication date |
---|---|
ATE111164T1 (de) | 1994-09-15 |
JPH04231486A (ja) | 1992-08-20 |
US5296001A (en) | 1994-03-22 |
EP0463905B1 (de) | 1994-09-07 |
FR2663344A1 (fr) | 1991-12-20 |
FR2663344B1 (fr) | 1992-10-09 |
DE69103825T2 (de) | 1995-01-05 |
ES2063463T3 (es) | 1995-01-01 |
DE69103825D1 (de) | 1994-10-13 |
JP3040201B2 (ja) | 2000-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4538663B2 (ja) | 高純度金属の高度精製方法およびその精製装置 | |
JPH0755814B2 (ja) | 連続珪素精製法 | |
EP0506588A1 (de) | Verfahren zur Behandlung von Gasen aus der elektrolytischen Herstellung von Fluor, die Uranverbindungen enthalten können | |
EP0463905B1 (de) | Verfahren zur Entfernung von Siliziumverbindungen aus Beizbädern und Einrichtung dafür | |
FR2641269A1 (fr) | Procede continu de separation d'impuretes d'avec du chlorure de zirconium et/ou de hafnium a l'etat de vapeur | |
JPS63282305A (ja) | 金属部材の付着樹脂除去方法 | |
JPH06136466A (ja) | アルミニウム溶湯又はアルミニウム合金溶湯の処理方法 | |
EP0125173B1 (de) | Verfahren zur Herstellung erstarrter Metallkörper aus der Schmelze eines Metalls | |
JPS60106532A (ja) | 三塩化ホウ素吸着剤の再生法 | |
KR20050032500A (ko) | 티타늄 성분으로부터 산화철 침적물의 제거 방법 | |
US5232602A (en) | Phosphorous removal from tetrachlorosilane | |
NO141418B (no) | Fremgangsmaate for fjerning av alkali- og jordalkalimetaller fra lettmetallsmelter | |
JPH0531487B2 (de) | ||
US716878A (en) | Process of making caffein. | |
US1327536A (en) | Process for chemical separation of ores | |
JPS5935641A (ja) | アルミニウム精製方法 | |
JPS62292613A (ja) | 高純度けい素の精製方法 | |
JPH05271799A (ja) | 電気炉ダストの有価金属回収方法およびその装置 | |
FR2605904A1 (fr) | Recuperation du phosphore dans une boue de bassin d'evacuation contenant du phosphore | |
US3356491A (en) | Purification of contaminated reactive metal products | |
US6238462B1 (en) | Methods for the separation of compounds from acidic aqueous solutions | |
CN1041403A (zh) | 零件清洗方法及实现该方法的装置 | |
JPH0578760A (ja) | 灰吹き法の供給材料を製造する銀含有合金の処理方法 | |
JPH06191809A (ja) | 塵埃から鉛、カドミウムおよび亜鉛を除く方法および装置 | |
SU981211A1 (ru) | Способ извлечени фосфора из фосфорсодержащих печных газов |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19920406 |
|
17Q | First examination report despatched |
Effective date: 19930119 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19940907 Ref country code: DK Effective date: 19940907 |
|
REF | Corresponds to: |
Ref document number: 111164 Country of ref document: AT Date of ref document: 19940915 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69103825 Country of ref document: DE Date of ref document: 19941013 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940920 |
|
ITF | It: translation for a ep patent filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19941207 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2063463 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20030515 Year of fee payment: 13 Ref country code: AT Payment date: 20030515 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20030519 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20030520 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20030528 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20030603 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030611 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030616 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20030709 Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040610 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040610 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040610 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040611 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040630 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040630 |
|
BERE | Be: lapsed |
Owner name: *SOLLAC Effective date: 20040630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050101 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20040610 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20050101 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050610 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20040611 |