DE2506193A1 - Recovery process for additives in solvent - using distillation followed by water separator - Google Patents
Recovery process for additives in solvent - using distillation followed by water separatorInfo
- Publication number
- DE2506193A1 DE2506193A1 DE19752506193 DE2506193A DE2506193A1 DE 2506193 A1 DE2506193 A1 DE 2506193A1 DE 19752506193 DE19752506193 DE 19752506193 DE 2506193 A DE2506193 A DE 2506193A DE 2506193 A1 DE2506193 A1 DE 2506193A1
- Authority
- DE
- Germany
- Prior art keywords
- solvent
- additives
- distillation
- cleaning
- water separator
- 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.)
- Pending
Links
- 238000004821 distillation Methods 0.000 title claims abstract description 25
- 239000000654 additive Substances 0.000 title claims abstract description 24
- 239000002904 solvent Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title 1
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 9
- 239000004753 textile Substances 0.000 claims abstract description 5
- 239000002216 antistatic agent Substances 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims abstract description 3
- 239000003599 detergent Substances 0.000 claims description 11
- 239000003623 enhancer Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 2
- -1 weaves Substances 0.000 abstract description 2
- 239000012459 cleaning agent Substances 0.000 abstract 1
- 238000009940 knitting Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 7
- 239000002920 hazardous waste Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/10—Filtering arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
- D06F43/08—Associated apparatus for handling and recovering the solvents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/48—Regeneration of cleaning solutions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Detergent Compositions (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Verfahren zur Aufbereit, einer beim Reinigen von Gegenständen anfallenden Lösung Die Erfindung bezieht sich auf ein Verfahren zur Aufbereitung einer beim Reinigen von Gegenständen, z. B. aus Metall, Holz, Kunststoff, Geweben, Textilien und dgl., anfallenden Lösung, welche neben den Lösungsmitteln auch waschaktive Zusatzstoffe, wie Reinigungsverstärker, antistatische Mittel, Bleichmittel und dgl., enthält, durch Destillation. Process for reprocessing, an accruing when cleaning objects Solution The invention relates to a method for processing a while Cleaning objects, e.g. B. made of metal, wood, plastic, fabrics, textiles and the like., resulting solution, which in addition to the solvents also active washing additives, such as detergent enhancers, antistatic agents, bleaching agents and the like. by distillation.
Gewöhnlich wird die beim Reinigen von Gegenständen, beispielsweise von Geweben, Textilien, anfallende Lösung durch Destillation aufbereitet. Bei der bekannten Aufbereitung werden die Lösungsmittel bei der Destillation übergetrieben, gekühlt und in einem Wasserabscheider ausgeschieden und in den Reinigungsprozeß zurückgebracht. Bei diesen Lösungsmitteln handelt es sich in aller Regel um chlorierte Kohlenwasserstoffe, wie z. B. Perchloräthylen.Usually when cleaning objects, for example of fabrics, textiles, resulting solution prepared by distillation. In the known processing, the solvents are driven over during the distillation, cooled and separated in a water separator and used in the cleaning process brought back. These solvents are usually chlorinated Hydrocarbons such as B. perchlorethylene.
Die waschaktiven Zusatzstoffe, worunter beispielsweise Reinigungsverstärker, antistatische Mittel, Bleichmittel, Substanzen, welche zur Verbesserung der Griffeigenschaften, zur Verbesserung der Knittereigenschaften und dgl., dienen, zu verstehen sind, verbleiben bei der Destillation zusammen mit dem in der Lösung befindlichen Schmutz im Destillationsrückstand. Dieser Destillationsrückstand wird anschließend als Sondermüll behandelt. Bei den Zusatzstoffen handelt es sich in aller Regel um solche Stoffe, welche giftig sind und die Gefahr der erheblichen Umweltverschmutzung in sich bergen. Es ist daher notwendig, daß der Destillationsrückstand als Sondermüll sehr sorgfältig behandelt und vernichtet wird.The detergent additives, including, for example, detergent enhancers, antistatic agents, bleaching agents, substances which improve the grip properties, to improve the wrinkle properties and the like. Serve, are to be understood, remain during the distillation together with the dirt in the solution in the distillation residue. This distillation residue is then treated as hazardous waste. Both Additives are usually substances that are toxic and pose the risk of significant environmental pollution. It is therefore It is necessary that the distillation residue is treated very carefully as hazardous waste and is destroyed.
Aufgabe der Erfindung ist es, die waschaktiven Substanzen bzw. Zusätze in der beim Reinigen anfallenden Lösung so aufzubereiten, daß sie wieder in den Reinigungsvorgang zurückgebracht werden können.The object of the invention is to find the detergent substances or additives to prepare in the resulting cleaning solution so that it is back in the Cleaning process can be returned.
Diese Aufgabe wird bei dem Verfahren der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß bei der Destillation der Lösungsmittel die waschaktiven Zusatzstoffe mitübergetrieben werden und in den Reinigungsvorgang zurückgebracht werden.This object is achieved according to the invention in the method of the type mentioned at the beginning solved in that the detergent additives during the distillation of the solvent are also overdriven and returned to the cleaning process.
Um die Entstehung von giftigen Gasen zu vermeiden, ist es ratsam, die Destillation bei einer Temperatur durchzuführen, die unterhalb der Zersetzungstemperatur der Lösungsmittel liegt, welche in aller Regel chlorierte Kohlenwasserstoffe sind. Eine bevorzugte Rückführung der Zusatzstoffe und auch der Lösungsmittel kann dadurch geschehen, daß nach der Destillation die Lösung mittel und die Zusatzstoffe gekühlt werden und über einen Wasserabscheider die Lösungsmittel von den Zusatzstoffen getrennt werden und beide in den Reinigungsvorgang zurückgebracht werden. Hierbei können die waschaktiven Zu satz stoffe gelöst in dem den Wasserabscheider verlassenden Wasser oder getrennt von diesem Wasser in den Reinigungsprozeß zurückgebracht werden.To avoid the formation of toxic gases, it is advisable to to carry out the distillation at a temperature below the decomposition temperature the solvent lies, which are usually chlorinated hydrocarbons. A preferred recycling of the additives and also the solvent can happen that after the distillation, the solution medium and the additives are cooled and the solvents are removed from the additives via a water separator are separated and both are returned to the cleaning process. Here the washing-active additives can be dissolved in the substances leaving the water separator Water or separately from this water can be returned to the cleaning process.
Der Vorteil der Erfindung ist darin zu sehen, daß der Sondermüll von den hochgiftigen, waschaktiven Substanzen bzw. Zusatzstoffen befreit ist und daß diese waschaktiven Zusatzstoffe in den Reinigungsprozeß zurückgeführt werden können, wodurch eine Einsparung an diesen Stoffen erhalten wird. Die waschaktiven Substanzen durchlaufen somit einen Kreislauf und werden hierbei immer wieder aufbereitet.The advantage of the invention is to be seen in the fact that the hazardous waste of the highly toxic, active washing substances or additives is exempt and that these detergent additives can be returned to the cleaning process, whereby a saving in these substances is obtained. The detergent substances thus run through a cycle and are processed again and again.
Anhand der beiliegenden Figur, welche den Ablauf eines Beispieles eines erfindungsgemäßen Verfahrens schematisch darstellt, soll die Erfindung noch näher erläutert werden.Using the enclosed figure, which shows the sequence of an example represents a method according to the invention schematically, the invention is still intended are explained in more detail.
Mit 1 ist eine Reinigungsanlage, beispielsweise eine Waschmaschine, bezeichnet, in der Textilien und dgl. gereinigt werden können. Mit 2 ist eine Destilliereinrichtung bezeichnet, in der die aus der Waschmaschine 1 anfallenden Lösungen unter Bildung eines Destillationsrllckstandes destilliert werden. Bei dieser Destillation werden sowohl die Lösungsmittel, welche beispielsweise chlorierte Kohlenwasserstoffe sind, als auch die waschaktiven Zusatzstoffe bei der Destillation mit übergetrieben. Sowohl die Zusatzstoffe als auch die Lösungsmittel werden in einer Kühleinrichtung 3 gekühlt und in einen Wasserabscheider 4 weitergeleitet. Aus dem Wasserabscheider 4 treten die Lösungsmittel und Wasser, in welchem sich die waschaktiven Zusatzstoffe befinden, aus. Das Wasser kann zusammen mit den waschaktiven Zusatzstoffen in die Reinigungsanlage bzw.With 1 is a cleaning system, for example a washing machine, Denotes, in the textiles and the like. Can be cleaned. With 2 is a distillation device denotes, in which the resulting from the washing machine 1 solutions under formation a distillation residue can be distilled. In this distillation will be both the solvents, which are for example chlorinated hydrocarbons, as well as the detergent additives in the distillation with overdrive. As well as the additives as well as the solvents are cooled in a cooling device 3 and passed into a water separator 4. Step out of the water separator 4 the solvents and water in which the detergent additives are located, the end. The water can go into the cleaning system together with the detergent additives respectively.
Waschmaschine 1 zurückgebracht werden. Es können auch die Zusatzstoffe allein in die Waschmaschine 1 zurückgebracht werden. Ebenfalls werden die Lösungsmittel in die Reinigungsanlage 1 wieder eingebracht.Washer 1 to be returned. There can also be additives alone be returned to the washing machine 1. Also the solvents reintroduced into the cleaning system 1.
Der in der Destillationseinrichtung 2 befindliche Destillationsrückstand wird als Sondermüll abtransportiert und entsprechend vernichtet.The distillation residue in the distillation device 2 is transported away as hazardous waste and destroyed accordingly.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752506193 DE2506193A1 (en) | 1975-02-14 | 1975-02-14 | Recovery process for additives in solvent - using distillation followed by water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752506193 DE2506193A1 (en) | 1975-02-14 | 1975-02-14 | Recovery process for additives in solvent - using distillation followed by water separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2506193A1 true DE2506193A1 (en) | 1976-08-26 |
Family
ID=5938863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752506193 Pending DE2506193A1 (en) | 1975-02-14 | 1975-02-14 | Recovery process for additives in solvent - using distillation followed by water separator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2506193A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606860A2 (en) * | 1993-01-15 | 1994-07-20 | Hoechst Aktiengesellschaft | Process and apparatus for solvent recuperation |
-
1975
- 1975-02-14 DE DE19752506193 patent/DE2506193A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606860A2 (en) * | 1993-01-15 | 1994-07-20 | Hoechst Aktiengesellschaft | Process and apparatus for solvent recuperation |
| EP0606860A3 (en) * | 1993-01-15 | 1994-10-19 | Hoechst Ag | Process and apparatus for solvent recuperation. |
| US5618432A (en) * | 1993-01-15 | 1997-04-08 | Hoechst Agteingesellschaft | Process for solvent recovery |
| US5711873A (en) * | 1993-01-15 | 1998-01-27 | Hoechst Aktiengesellschaft | Process for solvent recovery and apparatus suitable therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |