DE334307C - Process for the recovery of the preservatives contained in impregnated wood - Google Patents
Process for the recovery of the preservatives contained in impregnated woodInfo
- Publication number
- DE334307C DE334307C DE1919334307D DE334307DD DE334307C DE 334307 C DE334307 C DE 334307C DE 1919334307 D DE1919334307 D DE 1919334307D DE 334307D D DE334307D D DE 334307DD DE 334307 C DE334307 C DE 334307C
- Authority
- DE
- Germany
- Prior art keywords
- recovery
- impregnated wood
- wood
- impregnated
- preservatives contained
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0278—Processes; Apparatus involving an additional treatment during or after impregnation
- B27K3/0292—Processes; Apparatus involving an additional treatment during or after impregnation for improving fixation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Verfahren zur Wiedergewinnung der in imprägniertem Holz enthaltenen Konservierungsmittel. Die im Betriebe verbrauchten imprägnierten Althölzer enthalten neben den ihnen von Natur zukommenden Bestandteilen, wie Terpentinöl, Harz u. dgl: Imprägnierungsmittel, z. B. öle, Harzbestandteile usw. Diese im Holz enthaltenen wertvollen Bestandteile können durch fraktionierte Destillation wiedergewonnen werden, wobei auch die üblichen Produkte der Holzdestillation, wie Holzgeist, Essigsäure und Holzkohle, mitgewonnen werden.Process for the recovery of that contained in impregnated wood Preservatives. Contains the impregnated waste wood used in the company in addition to the naturally occurring constituents such as turpentine oil, resin and the like: Impregnating agents, e.g. B. oils, resin components, etc. These contained in the wood valuable components can be recovered by fractional distillation, where also the usual products of wood distillation, such as wood spirit, acetic acid and charcoal.
Wählt man als Ausgangsmaterial Eisenbahnschwellen, Telegraphenmaste und ähnliche in großen Mengen zur Verfügung stehende Holzbauteile, die witterungsfest imprägniert sind, so zeigt sich, daß aus einer einzigen Eisenbahnschwelle, die sonst nach endgiiltiger Betriebsabnutzung als wirtschaftlich nicht mehr verwertbar galt, noch 5 bis ro kg von Anthrazenöl oder dem sonstigen Imprägnierungsmittel, wie Kreosotöl, Kupfervitriol o. dgl., wiedergewonnen werden können, unter Umständen natürlich in chemisch veränderter Form. Die große regelmäßig zur Verfügung stehende Menge gerade dieser Ausgangsstoffe ermöglicht nun ihre technische und volkswirtschaftliche Ausnutzung nach dem neuen Verfahren. Die Durchführung des neuen Verfahrens kann sich beispielsweise so abspielen, daß Eisenbahnschwellen in geschlossener Retorte durch allmähliches Destillieren mit immer zunehmenden Hitzegraden nacheinander von dem Gehalt an Essigsäure, Holzgeist, Anthrazenöl oder Kreosotöl und Teeröl oder Mineralimprägnierungsmittel befreit werden, ohne daß im einzelnen ' besondere Abweichungen von dem üblichen Destillierverfahren erforderlich sind. Soweit nötig, kann durch Wasserzusatz auch eine Maßdestillation herbeigeführt werden, und. diese Destillation kann erforderlichenfalls auch unter wesentlich erhöhtem Drucke erfolgen.If you choose railway sleepers and telegraph poles as the starting material and similar wooden components that are available in large quantities and that are weatherproof are impregnated, it turns out that from a single railway sleeper, the otherwise after final operational wear and tear was no longer economically usable, 5 to ro kg of anthracene oil or other impregnating agents such as creosote oil, Copper vitriol or the like, can be recovered, under certain circumstances, of course, in chemically modified form. Just the large amount that is regularly available these starting materials now enable their technical and economic exploitation according to the new procedure. The implementation of the new method can, for example so play that railway sleepers in a closed retort through gradual Distilling the acetic acid content one after the other with increasing degrees of heat, Wood spirit, anthracene oil or creosote oil and tar oil or mineral impregnation agents be exempted without any particular deviations from the usual Distillation procedures are required. If necessary, water can also be added a mass distillation can be brought about, and. this distillation can be carried out if necessary can also be done under significantly increased pressure.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE334307T | 1919-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE334307C true DE334307C (en) | 1921-03-11 |
Family
ID=6215508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1919334307D Expired DE334307C (en) | 1919-11-16 | 1919-11-16 | Process for the recovery of the preservatives contained in impregnated wood |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE334307C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0298951A1 (en) * | 1987-07-10 | 1989-01-11 | Österreichisches Forschungszentrum Seibersdorf Ges.m.b.H. | Process and apparatus for treating impregnated wood or charcoal emitting poisonous substances at firing |
EP0529203A1 (en) * | 1991-08-23 | 1993-03-03 | Vft Ag | Process for the disposal of wood impregnated with tar |
WO1994001260A1 (en) * | 1992-07-06 | 1994-01-20 | Vinzenz Bankhamer | Process and plant for the disposal of timber treated with toxic substances |
DE19529832A1 (en) * | 1995-08-12 | 1997-02-13 | Binker Materialschutz Gmbh | Removal of toxic volatile preservative from timber building materials - by in situ heating to below the carbonisation temp. and ventilation and purificn. of exhausted air |
DE19729691C1 (en) * | 1997-07-11 | 1999-03-18 | Wolfgang Dr Ing Schuldes | Device for decontaminating railway track wooden sleepers |
-
1919
- 1919-11-16 DE DE1919334307D patent/DE334307C/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0298951A1 (en) * | 1987-07-10 | 1989-01-11 | Österreichisches Forschungszentrum Seibersdorf Ges.m.b.H. | Process and apparatus for treating impregnated wood or charcoal emitting poisonous substances at firing |
AT388316B (en) * | 1987-07-10 | 1989-06-12 | Oesterr Forsch Seibersdorf | METHOD FOR RECOVERING IMPREGNATED WOOD |
EP0529203A1 (en) * | 1991-08-23 | 1993-03-03 | Vft Ag | Process for the disposal of wood impregnated with tar |
WO1994001260A1 (en) * | 1992-07-06 | 1994-01-20 | Vinzenz Bankhamer | Process and plant for the disposal of timber treated with toxic substances |
DE19529832A1 (en) * | 1995-08-12 | 1997-02-13 | Binker Materialschutz Gmbh | Removal of toxic volatile preservative from timber building materials - by in situ heating to below the carbonisation temp. and ventilation and purificn. of exhausted air |
DE19529832C2 (en) * | 1995-08-12 | 2000-06-15 | Binker Materialschutz Gmbh | Process for the treatment of components releasing pollutants |
DE19729691C1 (en) * | 1997-07-11 | 1999-03-18 | Wolfgang Dr Ing Schuldes | Device for decontaminating railway track wooden sleepers |
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