EP0087055A1 - Method for the solvent treatment of metallic objects in particular - Google Patents

Method for the solvent treatment of metallic objects in particular Download PDF

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Publication number
EP0087055A1
EP0087055A1 EP83101166A EP83101166A EP0087055A1 EP 0087055 A1 EP0087055 A1 EP 0087055A1 EP 83101166 A EP83101166 A EP 83101166A EP 83101166 A EP83101166 A EP 83101166A EP 0087055 A1 EP0087055 A1 EP 0087055A1
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Prior art keywords
treated
solvent
treatment chamber
chamber
treatment
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EP83101166A
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German (de)
French (fr)
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EP0087055B1 (en
Inventor
Heinz Koblenzer
Franz Dipl.-Ing. Staudinger
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Robert Bosch GmbH
Duerr GmbH
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Robert Bosch GmbH
Duerr GmbH
Lpw Reinigungstechnik GmbH
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    • 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
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/04—Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays

Definitions

  • the invention relates generically to a method for the solvent treatment of in particular metallic material to be treated for the purpose of cleaning in a lockable treatment chamber, the material to be treated being introduced into the treatment chamber, the treatment chamber being closed and the material to be treated being treated with the solvent by spraying, and the injected solvent is caught.
  • a solvent treatment is in particular the degreasing of objects which are then further processed by electroplating.
  • the so-called dilution principle involves working with several treatment stages, mostly in several treatment chambers, but in any case with several containers for the solvent and with associated devices for treating the material to be treated by spraying.
  • the solvent is passed through the various treatment stages and is increasingly loaded with the substances to be detached from the material to be treated, while the material to be treated, as viewed in the process flow diagram, is carried out as it were in countercurrent.
  • the material to be treated is treated with pure or with the least loaded solvent.
  • the invention has for its object to carry out the generic method so that an arbitrarily high degree of purity can be achieved, without the need for equipment required when working according to the dilution principle.
  • the invention teaches that the material to be treated is treated with pure solvent, the amount of which is such that spraying is possible in a circuit realized by means of a pump, that the collected solvent is then removed and the material to be treated is dried with warm air, and that it is then rinsed with room air until the solvent concentration is below the maximum workplace concentration, only then is the treated material removed and the treatment chamber is re-loaded.
  • the warm air is generally circulated during the drying measure and can be freed of entrained solvent vapors during or afterwards.
  • the invention teaches that the Be material is treated several times with pure solvent before the material to be treated is dried and rinsed with ambient air.
  • pre-cleaning which is preferably carried out with the solvent which has already worked as a pure solvent in the process according to the invention.
  • the solvent used for pre-cleaning can then, for. B. by distillation, processed and used again for the process according to the invention.
  • the method according to the invention can be carried out as a single-chamber method, the treatment chamber itself being loaded and emptied directly. To this end, the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber, which is then rinsed with room air and opened after the rinsing for the purpose of loading and / or emptying. However, the method according to the invention can also be carried out as a two-chamber method with the charging and emptying chamber connected upstream of the treatment chamber.
  • the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber which is connected to a loading and emptying chamber, with a closure (door closure, slide closure, flap closure) between the treatment chamber and the loading and emptying chamber or cold seal or the like) is arranged, and that the dried material to be treated is introduced into the loading and emptying chamber and this is flushed with room air.
  • the loading and emptying chamber is expediently closable and remains closed when flushing with room air until the flushing process has ended. Only then is it opened for the purpose of emptying and reloading. After purging, the room air can be cleaned using activated carbon, but if the process is implemented in a small system, it can also be blown off directly over the roof. Depending on the conditions and concentrations, work can be carried out with or without suction.
  • the usual cold traps can also be used within the scope of the invention.
  • the first figure shows a treatment chamber 1 which can be closed via the door 2. It is a system that has only a single chamber 1 for the material to be treated, which is at the same time the treatment chamber as well as the loading and emptying chamber, which therefore loads directly via the door 2 mentioned and also empties via the door 2 after the solvent treatment of the material to be treated has ended becomes.
  • the treatment chamber 1 has a drain bottom 3, through which the solvent can be drawn off.
  • a collecting room 4 is connected.
  • These circles I, 11, III and this path IV are equipped with the usual units, such as blowers 5, heat exchangers 6, filters 7, pestle 8, valves 9 and the like.
  • a method can be implemented in which the material to be treated is treated with pure solvent, the amount of which is so dimensioned that the spraying takes place in a circuit realized by means of pump 10. Then the collected solvent is removed. The material to be treated is dried with warm air in drying circuit II. Thereafter, the treatment chamber 1 is flushed with room air via IV until the solvent concentration in the treatment chamber 1 is below the maximum workplace concentration. Only then is the treated material to be treated removed and the treatment chamber 1 is loaded again. - The system is the subject of the invention.

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  • 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)
  • Cleaning By Liquid Or Steam (AREA)
  • Processing Of Solid Wastes (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

1. Method for cleaning batches of objects to be treated with a solvent harmful to the environment in a closable treatment chamber, with which the objects are fed into the treatment chamber, the chamber is closed and the objects to be treated are sprayed with the solvent, the solvent conveyed to the treatment chamber being collected again, characterized in that the objects to be treated are sprayed during a cleaning phase with pure solvent in an amount proportioned such that during the cleaning phase only the collected solvent is conveyable in the circuit by means of a pump, that the solvent is drawn off and regenerated and that after completion of the cleaning phase the objects to be treated are dried during a drying phase by means of warm air guided in a circuit containing the treatment chamber and at the same time freed at least partially of solvent vapors, and that after completion of the drying phase the treatment chamber is flushed with ambient air until the concentration of solvent in the treatment chamber is below the maximum workplace concentration before the treated objects are removed from the treatment chamber.

Description

Die Erfindung bezieht sich gattungsgemäß auf ein Verfahren für die Lösungsmittelbehandlung von insbesondere metallischem Behandlungsgut zum Zwecke der Reinigung in einer verschließbaren Behandlungskammer, wobei das Behandlungsgut in die Behandlungskammer eingebracht, die Behandlungskammer verschlossen sowie das Behandlungsgut mit dem Lösungsmittel durch Bespritzen behandelt wird und wobei das eingespritzte Lösungsmittel aufgefangen wird. Insbesondere handelt es sich bei einer solchen Lösungsmittelbehandlung um die Entfettung von Gegenständen, die danach galvanotechnisch weiterbehandelt werden.The invention relates generically to a method for the solvent treatment of in particular metallic material to be treated for the purpose of cleaning in a lockable treatment chamber, the material to be treated being introduced into the treatment chamber, the treatment chamber being closed and the material to be treated being treated with the solvent by spraying, and the injected solvent is caught. Such a solvent treatment is in particular the degreasing of objects which are then further processed by electroplating.

Im Rahmen der (aus der Praxis) bekannten Maßnahmen wird nach dem sogenannten Verdünnungsprinzip mit mehreren Behandlungsstufen gearbeitet, und zwar zumeist in mehreren Behandlungskammern, jedenfalls jedoch mit mehreren Behältern für das Lösungsmittel und mit zugeordneten Einrichtungen für die Behandlung des Behandlungsgutes durch Bespritzen. Das Lösungsmittel wird über die verschiedenen Behandlungsstufen geführt und belädt sich dabei in zunehmendem Maße mit den vom Behandlungsgut abzulösenden Substanzen, während das Behandlungsgut, im Verfahrensfließschema betrachtet, gleichsam im Gegenstrom dazu geführt wird. In der letzten Stufe wird das Behandlungsgut mit reinem oder mit dem am wenigsten beladenen Lösungsmittel behandelt.Within the framework of the measures known from practice, the so-called dilution principle involves working with several treatment stages, mostly in several treatment chambers, but in any case with several containers for the solvent and with associated devices for treating the material to be treated by spraying. The solvent is passed through the various treatment stages and is increasingly loaded with the substances to be detached from the material to be treated, while the material to be treated, as viewed in the process flow diagram, is carried out as it were in countercurrent. In the last stage, the material to be treated is treated with pure or with the least loaded solvent.

Die bekannten Maßnahmen sind, insbesondere in apparativer Hinsicht, aufwendig. Im übrigen läßt sich häufig nur ein begrenzter Reinheitsgrad erreichen. Endlich verbleibt in der Behandlungskammer eine beachtliche Lösungsmittelkonzentration, die mit dem Öffnen der Behandlungskammer umweltbelastend frei wird oder aber mit Hilfe von Kühlfallen oder dergleichen gehalten werden muß.The known measures are complex, particularly in terms of apparatus. Otherwise, only a limited degree of purity can often be achieved. Finally, a considerable solvent concentration remains in the treatment chamber, which is released in a polluting manner when the treatment chamber is opened or which must be kept with the help of cold traps or the like.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, das gattungsgemäße Verfahren so zu führen, daß ein beliebig hoher Reinheitsgrad erreicht werden kann, und zwar unter Verzicht auf den beim Arbeiten nach dem Verdünnungsprinzip erforderlichen apparativen Aufwand.In contrast, the invention has for its object to carry out the generic method so that an arbitrarily high degree of purity can be achieved, without the need for equipment required when working according to the dilution principle.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß das Behandlungsgut mit reinem Lösungsmittel behandelt wird, dessen Menge so bemessen ist, daß das Bespritzen in einem mittels Pumpe verwirklichten Umlauf möglich ist, daß danach das aufgefangene Lösungsmittel abgeführt und das Behandlungsgut mit Warmluft getrocknet wird, und daß im Anschluß daran mit Raumluft gespült wird, bis die Lösungsmittelkonzentration unterhalb der maximalen Arbeitsplatzkonzentration liegt, wobei erst danach das behandelte Behandlungsgut entnommen und die Behandlungskammer neu beschickt wird. Die Warmluft wird bei der Trocknungsmaßnahme im allgemeinen im Kreislauf geführt und kanndabei oder danach von mitgeführten Lösungsmitteldämpfen befreit werden. Wo ein besonders hoher Reinheitsgrad angestrebt wird, lehrt die Erfindung, daß das Behandlungsgut mehrfach mit reinem Lösungsmittel behandelt wird, ehe das Behandlungsgut getrocknet und mit Raumluft gespült wird. Im Rahmen der Erfindung liegt es, der beschriebenen Reinigungsbehandlung eine Vorreinigung vorzuschalten, die vorzugsweise mit dem Lösungsmittel durchgeführt wird, welches bei dem erfindungsgemäßen Verfahren als reines Lösungsmittel bereits gearbeitet hat. Das für die Vorreinigung eingesetzte Lösungsmittel kann anschließend, z. B. per Destillation, aufbereitet und wieder für das erfindungsgemäße Verfahren eingesetzt werden.To achieve this object, the invention teaches that the material to be treated is treated with pure solvent, the amount of which is such that spraying is possible in a circuit realized by means of a pump, that the collected solvent is then removed and the material to be treated is dried with warm air, and that it is then rinsed with room air until the solvent concentration is below the maximum workplace concentration, only then is the treated material removed and the treatment chamber is re-loaded. The warm air is generally circulated during the drying measure and can be freed of entrained solvent vapors during or afterwards. Where a particularly high degree of purity is desired, the invention teaches that the Be material is treated several times with pure solvent before the material to be treated is dried and rinsed with ambient air. It is within the scope of the invention to precede the cleaning treatment described with a pre-cleaning which is preferably carried out with the solvent which has already worked as a pure solvent in the process according to the invention. The solvent used for pre-cleaning can then, for. B. by distillation, processed and used again for the process according to the invention.

Das erfindungsgemäße Verfahren kann als Einkammerverfahren durchgeführt werden, wobei die Behandlungskammer selbst unmittelbar beschickt und entleert wird. Hierzu lehrt die Erfindung, daß die Behandlung und die Trocknung des Behandlungsgutes in der Behandlungskammer durchgeführt werden, die danach mit Raumluft gespült und nach der Spülung zum Zwecke von Beschickung und/oder Entleerung geöffnet wird. Das erfindungsgemäße Verfahren kann aber auch als Zweikammerverfahren mit der Behandlungskammer vorgeschalteter Beschick-und Entleerkammer durchgeführt werden. In diesem Sinne lehrt die Erfindung, daß die Behandlung und die Trocknung des Behandlungsgutes in der Behandlungskammer durchgeführt werden, die mit einer Beschick- und Entleerkammer in Verbindung steht, wobei zwischen der Behandlungskammer sowie der Beschick- und Entleerkammer ein Verschluß (Türverschluß, Schieberverschluß, Klappenverschluß oder auch Kälteverschluß oder dergleichen) angeordnet ist, und daß das getrocknete Behandlungsgut in die Beschick- und Entleerkammer eingeführt sowie diese mit Raumluft gespült wird. Auch die Beschick- und Entleerkammer ist zweckmäßigerweise verschließbar und bleibt bei der Spülung mit Raumluft geschlossen, bis der Spülvorgang beendet ist. Erst danach wird sie zum Zwecke der Entleerung und der Neubeschickung geöffnet. Die Raumluft kann nach dem Spülen über Aktivkohle gereinigt werden, sie kann aber, bei Verwirklichung des Verfahrens in einer kleinen Anlage, auch unmittelbar über Dach abgeblasen werden. Je nach den Verhältnissen und Konzentrationen kann mit oder ohne Absaugung gearbeitet werden. Auch die üblichen Kältefallen sind im Rahmen der Erfindung einsetzbar.The method according to the invention can be carried out as a single-chamber method, the treatment chamber itself being loaded and emptied directly. To this end, the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber, which is then rinsed with room air and opened after the rinsing for the purpose of loading and / or emptying. However, the method according to the invention can also be carried out as a two-chamber method with the charging and emptying chamber connected upstream of the treatment chamber. In this sense, the invention teaches that the treatment and drying of the material to be treated are carried out in the treatment chamber which is connected to a loading and emptying chamber, with a closure (door closure, slide closure, flap closure) between the treatment chamber and the loading and emptying chamber or cold seal or the like) is arranged, and that the dried material to be treated is introduced into the loading and emptying chamber and this is flushed with room air. The loading and emptying chamber is expediently closable and remains closed when flushing with room air until the flushing process has ended. Only then is it opened for the purpose of emptying and reloading. After purging, the room air can be cleaned using activated carbon, but if the process is implemented in a small system, it can also be blown off directly over the roof. Depending on the conditions and concentrations, work can be carried out with or without suction. The usual cold traps can also be used within the scope of the invention.

Die erreichten Vorteile sind darin zu sehen, daß bei dem erfindungsgemäßen Verfahren ein vorgegebener Reinheitsgrad des Behandlungsgutes mit Sicherheit erreichbar ist, wenn auch dadurch, daß das Behandlungsgut mehrfach mit reinem Lösungsmittel behandelt wird, ehe das Behandlungsgut getrocknet und mit Raumluft gespült wird. Das ist ein beachtlicher, verfahrensmäßiger Vorteil, der sich in apparativer Hinsicht mit geringem Aufwand verwirklichen läßt, weil die mehreren Behandlungskammern und die dazugehörigen Einrichtungen, die installiert werden müssen, wenn nach dem Verdünnungsprinzip gearbeitet wird, entfallen. Es versteht sich von selbst, daß das Lösungsmittel, welches im Rahmen des erfindungsgemäßen Verfahrens eingesetzt wird, wieder aufbereitet wird, z. B. mit Hilfe üblicher Destillation, so daß es danach erneut als reines Lösungsmittel eingesetzt werden kann.The advantages achieved can be seen in the fact that in the method according to the invention a predetermined degree of purity of the material to be treated can be achieved with certainty, even if the material to be treated is treated several times with pure solvent before the material to be treated is dried and rinsed with ambient air. This is a considerable procedural advantage, which can be achieved in terms of equipment with little effort, since the multiple treatment chambers and the associated facilities, which have to be installed if the dilution principle is used, are eliminated. It goes without saying that the solvent which is used in the process according to the invention is reprocessed, e.g. B. using conventional distillation, so that it can then be used again as a pure solvent.

Im folgenden wird die Erfindung anhand einer Anlage, die für das erfindungsgemäße Verfahren eingerichtet ist, ausführlicher erläutert.The invention is explained in more detail below on the basis of a plant which is set up for the method according to the invention.

In der einzigen Figur erkennt man zunächst eine Behandlungskammer 1, die über die Tür 2 verschließbar ist. Es handelt sich um eine Anlage, die nur eine einzige Kammer 1 für das Behandlungsgut aufweist, die zugleich Behandlungskammer sowie Beschick- und Entleerkammer ist, die über die erwähnte Tür 2 also unmittelbar beschickt und nach Beendigung der Lösungsmittelbehandlung des Behandlungsgutes über die Tür 2 auch entleert wird. Die Behandlungskammer 1 besitzt einen Ablaufboden 3, über den das Lösungsmittel abgezogen werden kann. Ein Sammelraum 4 ist angeschlossen. Man erkennt einen Lösungsmittelkreis 1 für die Lösungsmittelbehandlung, den Trocknungskreis II und den Lösungsmittelregenerationskreis III. Im übrigen erkennt man den Spülluftweg IV. Diese Kreise I, 11, III und dieser Weg IV sind mit den üblichen Aggregaten, wie Gebläse 5, Wärmetauscher 6, Filter 7, Pestilliereinrichtung 8, Ventile 9 und dergleichen ausgerüstet. Im Ergebnis läßt sich ein Verfahren verwirklichen, bei dem das Behandlungsgut mit reinem Lösungsmittel behandelt wird, dessen Menge so bemessen ist, daß das Bespritzen in einem mittels Pumpe 10 verwirklichten Umlauf erfolgt. Danach wird das aufgefangene Lösungsmittel abgeführt. Das Behandlungsgut wird mit Warmluft im Trocknungskreis II getrocknet. Im Anschluß daran wird die Behandlungskammer 1 mit Raumluft über IV gespült, bis die Lösungsmittelkonzentration in der Behandlungskammer 1 unterhalb der maximalen Arbeitsplatzkonzentration liegt. Danach erst wird das behandelte Behandlungsgut entnommen und die Behandlungskammer 1 wird erneut beschickt. - Auch die Anlage ist Gegenstand der Erfindung.The first figure shows a treatment chamber 1 which can be closed via the door 2. It is a system that has only a single chamber 1 for the material to be treated, which is at the same time the treatment chamber as well as the loading and emptying chamber, which therefore loads directly via the door 2 mentioned and also empties via the door 2 after the solvent treatment of the material to be treated has ended becomes. The treatment chamber 1 has a drain bottom 3, through which the solvent can be drawn off. A collecting room 4 is connected. One recognizes a solvent circuit 1 for the solvent treatment, the drying circuit II and the solvent regeneration circuit III. Otherwise, the purge air path IV can be seen. These circles I, 11, III and this path IV are equipped with the usual units, such as blowers 5, heat exchangers 6, filters 7, pestle 8, valves 9 and the like. As a result, a method can be implemented in which the material to be treated is treated with pure solvent, the amount of which is so dimensioned that the spraying takes place in a circuit realized by means of pump 10. Then the collected solvent is removed. The material to be treated is dried with warm air in drying circuit II. Thereafter, the treatment chamber 1 is flushed with room air via IV until the solvent concentration in the treatment chamber 1 is below the maximum workplace concentration. Only then is the treated material to be treated removed and the treatment chamber 1 is loaded again. - The system is the subject of the invention.

Claims (5)

1. Verfahren für die Lösungsmittelbehandlung von insbesondere metallischem Behandlungsgut zum Zwecke der Reinigung in einer verschließbaren Behandlungskammer, wobei das Behandlungsgut in die Behandlungskammer eingebracht, die Behandlungskammer verschlossen sowie das Behandlungsgut mit dem Lösungsmittel durch Bespritzen behandelt wird und wobei das eingespritzte Lösungsmittel aufgefangen wird, dadurch gekennzeichnet, daß das Behandlungsgut mit reinem Lösungsmittel behandelt wird, dessen Menge so bemessen ist, daß das Bespritzen in einem mittels Pumpe verwirklichten Umlauf möglich ist, daß danach das aufgefangene Lösungsmittel abgeführt und das Behandlungsgut mit Warmluft getrocknet wird, und daß im Anschluß daran mit Raumluft gespült wird, bis die Lösungsmittelkonzentration unterhalb der maximalen Arbeitsplatzkonzentration liegt, - wobei erst danach das behandelte Behandlungsgut entnommen und die Behandlungskammer neu beschickt wird.1. A method for the solvent treatment of, in particular, metallic material to be treated for the purpose of cleaning in a lockable treatment chamber, the material to be treated being introduced into the treatment chamber, the treatment chamber being sealed and the material to be treated being treated with the solvent by spraying and the injected solvent being collected, characterized in that that the material to be treated is treated with pure solvent, the amount of which is such that spraying in a circuit realized by means of a pump is possible, that the collected solvent is then removed and the material to be treated is dried with warm air, and that it is then rinsed with room air until the solvent concentration is below the maximum workplace concentration, - only afterwards the treated material to be treated and the treatment chamber being reloaded. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Behandlungsgut mehrfach mit reinem Lösungsmittel behandelt wird, ehe das Behandlungsgut getrocknet und mit Raumluft gespült wird.2. The method according to claim 1, characterized in that the material to be treated is treated several times with pure solvent before the material to be treated is dried and rinsed with ambient air. 3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Behandlung und die Trocknung des Behandlungsgutes in der Behandlungskammer durchgeführt werden, die danach mit Raumluft gespült und nach der Spülung zum Zwecke von Beschickung und/oder Entleerung geöffnet wird.3. The method according to any one of claims 1 or 2, characterized in that the treatment and drying of the material to be treated are carried out in the treatment chamber, which is then rinsed with room air and opened after rinsing for the purpose of loading and / or emptying. 4. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Behandlung und die Trocknung des Behandlungsgutes in der Behandlungskammer durchgeführt werden, die mit einer Beschick- und Entleerkammer in Verbindung steht, wobei zwischen der Behandlungskammer sowie der Beschick- und Entleerkammer ein Verschluß (Türverschluß, Schieberverschluß, Klappenverschluß oder dergleichen) angeordnet ist, und daß das getrocknete Behandlungsgut in die Beschick- und Entleerkammer eingeführt sowie diese mit Raumluft gespült wird.4. The method according to any one of claims 1 or 2, characterized in that the treatment and drying of the material to be treated are carried out in the treatment chamber, which is in communication with a loading and unloading chamber, with a between the treatment chamber and the loading and unloading chamber Closure (door closure, slide closure, flap closure or the like) is arranged, and that the dried material to be treated is introduced into the loading and emptying chamber and this is flushed with room air. 5. Verfahren nach'einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Raumluft nach dem Spülen über Aktivkohle gereinigt und/oder über Dach abgeblasen wird.5. The method according to one of claims 1 to 4, characterized in that the room air is cleaned after rinsing over activated carbon and / or blown off over the roof.
EP83101166A 1982-02-18 1983-02-08 Method for the solvent treatment of metallic objects in particular Expired EP0087055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823205736 DE3205736A1 (en) 1982-02-18 1982-02-18 METHOD FOR SOLVENT TREATMENT OF PARTICULAR METAL TREATMENT
DE3205736 1982-02-18

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EP0087055A1 true EP0087055A1 (en) 1983-08-31
EP0087055B1 EP0087055B1 (en) 1987-12-16

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DE (2) DE3205736A1 (en)
ES (1) ES8400500A1 (en)
IT (1) IT1163104B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599642A1 (en) * 1986-06-09 1987-12-11 Serma Sarl Programmable prewashing, washing, spraying, atomising, rinsing, blowing or drying cabin for industry
EP0276876A1 (en) * 1987-01-09 1988-08-03 Metalas-Holland B.V. Method for degreasing articles in a vapour
DE3709672A1 (en) * 1987-03-24 1988-10-13 Carl Dittmann Gmbh & Co Kg Process and system for cleaning and degreasing articles to be treated
EP0289982A2 (en) * 1987-05-07 1988-11-09 Höckh Metall-Reinigungs-Anlagen Gmbh Drying apparatus for objects in cleaning plants
EP0302313A1 (en) * 1987-08-01 1989-02-08 Peter Weil Process and apparatus for treating objects with solvents in a closed vessel
DE19640060A1 (en) * 1996-09-28 1998-04-09 Boewe Passat Reinigung Reducing dirt in cleaning solution

Citations (4)

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DD131187A5 (en) * 1976-08-13 1978-06-07 Schering Ag PROCESS FOR CLEANING OBJECTS FOR GALVANIC AND / OR CHEMICAL SURFACE TREATMENT
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FR2599642A1 (en) * 1986-06-09 1987-12-11 Serma Sarl Programmable prewashing, washing, spraying, atomising, rinsing, blowing or drying cabin for industry
EP0276876A1 (en) * 1987-01-09 1988-08-03 Metalas-Holland B.V. Method for degreasing articles in a vapour
DE3709672A1 (en) * 1987-03-24 1988-10-13 Carl Dittmann Gmbh & Co Kg Process and system for cleaning and degreasing articles to be treated
EP0289982A2 (en) * 1987-05-07 1988-11-09 Höckh Metall-Reinigungs-Anlagen Gmbh Drying apparatus for objects in cleaning plants
EP0289982A3 (en) * 1987-05-07 1990-01-31 Hockh Metall-Reinigungs-Anlagen Gmbh Drying apparatus for objects in cleaning plants
EP0302313A1 (en) * 1987-08-01 1989-02-08 Peter Weil Process and apparatus for treating objects with solvents in a closed vessel
WO1989001057A1 (en) * 1987-08-01 1989-02-09 Peter Weil Process and device for treating objects with a solvent in a closed container
DE19640060A1 (en) * 1996-09-28 1998-04-09 Boewe Passat Reinigung Reducing dirt in cleaning solution
DE19640060C2 (en) * 1996-09-28 2000-01-27 Boewe Passat Reinigung Cleaning process in a textile cleaning machine

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ES519813A0 (en) 1983-11-16
ES8400500A1 (en) 1983-11-16
IT8319590A0 (en) 1983-02-15
IT1163104B (en) 1987-04-08
EP0087055B1 (en) 1987-12-16
IT8319590A1 (en) 1984-08-15
DE3205736A1 (en) 1983-08-25
DE3374949D1 (en) 1988-01-28

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