SU391923A1 - METHOD OF MODIFICATION OF WOOD - Google Patents
METHOD OF MODIFICATION OF WOODInfo
- Publication number
- SU391923A1 SU391923A1 SU1797018A SU1797018A SU391923A1 SU 391923 A1 SU391923 A1 SU 391923A1 SU 1797018 A SU1797018 A SU 1797018A SU 1797018 A SU1797018 A SU 1797018A SU 391923 A1 SU391923 A1 SU 391923A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wood
- acetylation
- field
- modification
- frequency currents
- Prior art date
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
1one
Изобретение отнОСитс к области облагораживани древесины и касаетс способа модификации древесины ацетилированием.The invention relates to the field of wood refining and concerns a method for modifying wood by acetylation.
Известен способ модификации древесины ацетилированием с последующей обработкой ее в ноле токов высокой частоты.There is a method of modifying wood by acetylation with its subsequent processing in the field of high-frequency currents.
Однако при известном способе обработку древесины уксусным ангидридом и последующую обработку в поле токов высокой частоты производ т раздельно, ноэтому известна технологи обработки древесины не нозвол ет значительно интенсифицировать процесс ацетилировани .However, with a known method, the treatment of wood with acetic anhydride and the subsequent processing in the field of high-frequency currents are performed separately, but therefore, the known technology of processing wood does not significantly intensify the acetylation process.
Цель изобретени - создание такого способа модификации древесины, который позволил бы значительно интенсифицировать процесс ацетилировапи древесины.The purpose of the invention is to create such a method for modifying wood, which would significantly intensify the process of wood acetylating.
Дл этого используют способ модификации древесины ацетилнрованием, например, уксусным ангидридом с обработкой древесины в поле токов высокой частоты.To do this, use the method of modifying wood by acetylation, for example, with acetic anhydride with processing of wood in the field of high-frequency currents.
Согласно изобретению ацетилирование и обработку древесины в поле токов высокой частоты производ т одновременно в течение 0,25-2 час при 70-140°С.According to the invention, the acetylation and processing of wood in the field of high-frequency currents is carried out simultaneously within 0.25-2 hours at 70-140 ° C.
Древесину помещают в контейнер из материала с малыМИ диэлектрическими потер ми.The wood is placed in a container of a material with small dielectric losses.
Затем в контейнер наливают определенное количество уксусного ангидрида, помещают контейнер в поле токов высокой частоты и обработку производ т в течение 0,25-2 час при 70-140°С.Then, a certain amount of acetic anhydride is poured into the container, the container is placed in the field of high frequency currents and the treatment is carried out for 0.25-2 hours at 70-140 ° C.
При обработке древесины таким способом в среде уксусного ангидрида нар ду с пропиткой происходит химическа реакци взаимодействи уксусного ангидрида с древесиной, т. е. ацетилирование древесины.When wood is treated in this way in an acetic anhydride environment, along with impregnation, a chemical reaction occurs between acetic anhydride and wood, i.e. wood acetylation.
Наличие пол токов высокой частоты позвол ет нптенсифицировать процесс модификации древесины.The presence of high frequency polkovki allows to impersonate the process of wood modification.
Предмет изобретени Subject invention
Способ модификации древесины ацетилированием , например, уксусным ангидридом с последующей обработкой ее в поле токов высокой частоты, отличающийс тем, что, с целью интенсификации процесса, ацетилирование и обработку древесины в поле токов высокой частоты производ т одновремешю в течение 0,25-2 час при 70-140°С.The method of modifying wood by acetylation, for example, with acetic anhydride followed by its treatment in the field of high-frequency currents, characterized in that, in order to intensify the process, acetylation and processing of wood in the field of high-frequency currents is performed simultaneously for 0.25-2 hours 70-140 ° C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1797018A SU391923A1 (en) | 1972-06-16 | 1972-06-16 | METHOD OF MODIFICATION OF WOOD |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1797018A SU391923A1 (en) | 1972-06-16 | 1972-06-16 | METHOD OF MODIFICATION OF WOOD |
Publications (1)
Publication Number | Publication Date |
---|---|
SU391923A1 true SU391923A1 (en) | 1973-07-27 |
Family
ID=20517938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1797018A SU391923A1 (en) | 1972-06-16 | 1972-06-16 | METHOD OF MODIFICATION OF WOOD |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU391923A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399818A (en) * | 2003-02-21 | 2004-09-29 | Thomas Ryan | Acetylation of a lignocellulosic material |
US9282594B2 (en) | 2010-12-23 | 2016-03-08 | Eastman Chemical Company | Wood heater with enhanced microwave launching system |
-
1972
- 1972-06-16 SU SU1797018A patent/SU391923A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399818A (en) * | 2003-02-21 | 2004-09-29 | Thomas Ryan | Acetylation of a lignocellulosic material |
US9282594B2 (en) | 2010-12-23 | 2016-03-08 | Eastman Chemical Company | Wood heater with enhanced microwave launching system |
US9456473B2 (en) | 2010-12-23 | 2016-09-27 | Eastman Chemical Company | Dual vessel chemical modification and heating of wood with optional vapor |
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