[go: up one dir, main page]

GB1161260A - Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber - Google Patents

Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber

Info

Publication number
GB1161260A
GB1161260A GB55348/67A GB5534867A GB1161260A GB 1161260 A GB1161260 A GB 1161260A GB 55348/67 A GB55348/67 A GB 55348/67A GB 5534867 A GB5534867 A GB 5534867A GB 1161260 A GB1161260 A GB 1161260A
Authority
GB
United Kingdom
Prior art keywords
timber
electrode
sap
solution
preserving
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
GB55348/67A
Inventor
Charles Leslie Marriott
Charles Howard Marriott
Herbert Pemberton Macpherson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB55348/67A priority Critical patent/GB1161260A/en
Publication of GB1161260A publication Critical patent/GB1161260A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/46—Apparatus therefor
    • B01D61/463—Apparatus therefor comprising the membrane sequence AC or CA, where C is a cation exchange membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • 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
    • B27K3/16—Inorganic impregnating agents
    • B27K3/22—Compounds of zinc or copper
    • 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
    • B27K3/16—Inorganic impregnating agents
    • B27K3/28—Compounds of arsenic or antimony
    • 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
    • B27K3/16—Inorganic impregnating agents
    • B27K3/32—Mixtures of different inorganic impregnating agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

1,161,260. Preserving timber by electrolytic impregnation. C. L. MARRIOTT, C. H. MARRIOTT and H. P. MacPHERSON. 5 Dec., 1967, No. 55348/67. Heading A5E. [Also in Division C7] Timber is preserved by introducing preservative or fungicidal material into fresh timber by inserting one end into a vessel containing a solution in dilute sulphuric acid of the preservative or fungicidal material so as to contact an electrode in contact with the solution, applying a second electrode to the other end of the timber, and passing D.C. through it, whereby ions of the preserving material are introduced into the sap of the timber. The preserving material may comprise copper sulphate or arsenic pentoxide. Typically a felled tree trunk is placed vertically on an electrode submerged in a trough containing the treating solution and a second electrode is placed on the top end. By periodically reversing the applied polarity both anions and cations may be introduced into the sap. Alternatively the tree may be placed horizontally on skids or rails and a hemispherical treating solution container, itself serving as an electrode, may be clamped to each end. In a further arrangement sawn timber is immersed between top and bottom electrode in a vat containing treating solution. In all cases a high voltage is applied initially but as the conductivity of the tree sap increases the applied voltage is reduced. The applied voltage may be in the range of 1 to 1000 volts and the current may be in the range 0.001 to 100 amps.
GB55348/67A 1967-12-05 1967-12-05 Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber Expired GB1161260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB55348/67A GB1161260A (en) 1967-12-05 1967-12-05 Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55348/67A GB1161260A (en) 1967-12-05 1967-12-05 Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber

Publications (1)

Publication Number Publication Date
GB1161260A true GB1161260A (en) 1969-08-13

Family

ID=10473662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55348/67A Expired GB1161260A (en) 1967-12-05 1967-12-05 Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber

Country Status (1)

Country Link
GB (1) GB1161260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058541A1 (en) * 1981-02-13 1982-08-25 The Marine Resources Company Treatment of materials for protection against degradation and a wooden body thus treated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058541A1 (en) * 1981-02-13 1982-08-25 The Marine Resources Company Treatment of materials for protection against degradation and a wooden body thus treated

Similar Documents

Publication Publication Date Title
DE3166050D1 (en) Process for the extraction of organic acids from aqueous solution
DE3367150D1 (en) Preservative solution for preserving functional cells
ES469094A1 (en) METHOD FOR TREATING WOOD WITH A WOOD PRESERVING AGENT, AS WELL AS WOOD TREATED WITH SUCH TIMBER CONSERVATION AGENT
GB1161260A (en) Improvements in Methods of and Apparatus for the Electrodialytic Preservation of Timber
GB975314A (en) Improvements in or relating to fuel cells
ES2014655A6 (en) Method for treating fresh fruit to prevent and retard the growth of fungus
US2895848A (en) Method of preserving the wooden structure of cooling towers by impregnating
GB1206574A (en) Bleaching fruits and vegetables
US3547657A (en) Electrical processing of marine products
RU96100973A (en) MILK CONSERVATION METHOD
ES354605A1 (en) Electrolytic hydrodimerisation process
ES447329A1 (en) Procedure for the manufacture of low acid concentrates of frost musts. (Machine-translation by Google Translate, not legally binding)
Eisner et al. Applications of semipermeable ion exchange membranes to trace analysis of metal ions by electrochemical and neutron activation techniques
US1828518A (en) Process for the preservation of fresh fruits and vegetables from mold and decay
GB1308302A (en) Method of and apparatus for treating timber with a preservative and timber when treated by the said method or using the said apparatus
GB1473660A (en) Method for the penetration of sawn green wood by liquid preservatives
US1512414A (en) Wood-preserving emulsion
SE8300808D0 (en) PROCEDURE FOR THE CONSERVATION OF STRONGLY WATERFUL ANIMAL FEED SUBSTANCES, SPECIFICALLY FISH SEALAGE, FOR USE IN FUR ANIMAL FEED AND CONSERVATOR FOR USE IN THE PROCEDURE
JPS6411905A (en) Method for preventing rust on powdery magnetic metal
SU967821A1 (en) Method of working wooden articles
RU2071381C1 (en) Wood grinding method
GB1469750A (en) Process of treating timber and the treated product
JPS6411906A (en) Method for preventing rust on powdery magnetic metal
GB191025175A (en) Improved Electric Process for Drying Timber.
ES263431A3 (en) New procedure for the conservation and defense of citrus fruits against putrefaction (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]