DE370552C - Method for impregnating wood or the like. - Google Patents

Method for impregnating wood or the like.

Info

Publication number
DE370552C
DE370552C DEF50998D DEF0050998D DE370552C DE 370552 C DE370552 C DE 370552C DE F50998 D DEF50998 D DE F50998D DE F0050998 D DEF0050998 D DE F0050998D DE 370552 C DE370552 C DE 370552C
Authority
DE
Germany
Prior art keywords
phenols
wood
impregnating wood
solutions
caustic soda
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
Application number
DEF50998D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANZ FISCHER DR
Original Assignee
FRANZ FISCHER DR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FRANZ FISCHER DR filed Critical FRANZ FISCHER DR
Priority to DEF50998D priority Critical patent/DE370552C/en
Application granted granted Critical
Publication of DE370552C publication Critical patent/DE370552C/en
Expired legal-status Critical Current

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
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • 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
    • B27K3/34—Organic impregnating agents
    • B27K3/38—Aromatic compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

Verfahren zum Imprägnieren von Holz o. dgl. Es ist bekannt, daß Phenole eine konservierende Wirkung auf Holz ausüben. Ebenso ist es bekannt, statt der Phenole selbst, phenolhaltige Öle oder Teere, ferner Auflösungen von Phenolen in Natronlauge zu verwenden. Bei Verwendung wässeriger Phenolatlösungen muß man annehmen, daß die Kohlensäure der Luft sie nach einiger Zeit im Holze zersetzt, so daß freie Phenole und kohlensaures Natron entstehen. Vor kurzem ist festgestellt worden (Brennstoff-Chemie Bd. 3; Seite r, 1g22), daß Phenole aus Teeren und Teerölen statt mit Natronlauge auch mit Schwefelnatriumlösungen extrahiert werden können.Process for impregnating wood o. The like. It is known that phenols have a preservative effect on wood. It is also known instead of phenols itself, phenolic oils or tars, as well as the dissolution of phenols in caustic soda to use. When using aqueous phenolate solutions one must assume that the Carbonic acid in the air decomposes in the wood after a while, leaving free phenols and carbonate of soda is produced. It has recently been established (fuel chemistry Vol. 3; Page r, 1g22) that phenols are made from tars and tar oils instead of caustic soda can also be extracted with sodium sulphide solutions.

Die derart oder auf andere Weise gewonnenen Lösungen von Phenolen in Schwefelalkalilösungen (oder anderen löslichen Schwefelverbindungen) erweisen sich als besonders geeignet zur Holzimprägnierung, durch die vereinigte Giftwirkung der bei Einwirkung der Kohlensäure auf das Imprägnierungsmittel im Holze entstehenden Stoffe, nämlich des betreffenden Phenols und des Schwefelwasserstoffes.The solutions of phenols obtained in this way or in another way in alkaline sulfur solutions (or other soluble sulfur compounds) particularly suitable for wood impregnation, due to the combined poisonous effect which occurs when the carbonic acid acts on the impregnation agent in the wood Substances, namely the phenol in question and hydrogen sulfide.

Das Verfahren selbst bietet insofern noch wirtschaftliche Vorteile, als z. B. Schwefelnatrium durch Reduktion von Glaubersalz leicht gewinnbar und stets billiger ist als das sonst zur Auflösung der Phenole erforderliche Ätznatron.The process itself still offers economic advantages, as z. B. Sodium sulphide easily obtained by reducing Glauber's salt and always is cheaper than the caustic soda otherwise required to dissolve the phenols.

Claims (1)

PATENT-ANSPRUcH: Verfahren zum Imprägnieren von Holz u. dgl., dadurch gekennzeichnet, daß dazu Auflösungen von Phenolen in löslichen Sulfiden bzw. Hydrosulfiden benutzt werden.PATENT CLAIM: Process for impregnating wood and the like, thereby characterized that for this purpose dissolutions of phenols in soluble sulfides or hydrosulfides to be used.
DEF50998D 1922-01-21 1922-01-21 Method for impregnating wood or the like. Expired DE370552C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF50998D DE370552C (en) 1922-01-21 1922-01-21 Method for impregnating wood or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF50998D DE370552C (en) 1922-01-21 1922-01-21 Method for impregnating wood or the like.

Publications (1)

Publication Number Publication Date
DE370552C true DE370552C (en) 1923-03-03

Family

ID=7104256

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF50998D Expired DE370552C (en) 1922-01-21 1922-01-21 Method for impregnating wood or the like.

Country Status (1)

Country Link
DE (1) DE370552C (en)

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