JP2023548997A - 木材アセチル化流体の精製 - Google Patents
木材アセチル化流体の精製 Download PDFInfo
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- JP2023548997A JP2023548997A JP2023505992A JP2023505992A JP2023548997A JP 2023548997 A JP2023548997 A JP 2023548997A JP 2023505992 A JP2023505992 A JP 2023505992A JP 2023505992 A JP2023505992 A JP 2023505992A JP 2023548997 A JP2023548997 A JP 2023548997A
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- Prior art keywords
- acetic acid
- wood
- fluid
- acetylation
- acetylated
- Prior art date
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- 239000002023 wood Substances 0.000 title claims abstract description 114
- 239000012530 fluid Substances 0.000 title claims abstract description 104
- 238000006640 acetylation reaction Methods 0.000 title claims description 75
- 230000021736 acetylation Effects 0.000 title claims description 73
- 238000000746 purification Methods 0.000 title description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 410
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- 230000000397 acetylating effect Effects 0.000 claims abstract description 8
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 161
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- 238000004519 manufacturing process Methods 0.000 claims description 31
- CCGKOQOJPYTBIH-UHFFFAOYSA-N ethenone Chemical compound C=C=O CCGKOQOJPYTBIH-UHFFFAOYSA-N 0.000 claims description 26
- 238000002844 melting Methods 0.000 claims description 23
- 230000008018 melting Effects 0.000 claims description 23
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
-
- 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
- B27K3/346—Grafting onto wood fibres
-
- 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
- B27K3/0207—Pretreatment of wood before impregnation
- B27K3/0214—Drying
-
- 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
-
- 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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fats And Perfumes (AREA)
Abstract
Description
・木材(無垢材(solid wood)又は木材要素)を提供する工程;
・木材又は木材要素の含水量を制御し、必要に応じて調整する工程;
・木材又は木材要素にアセチル化流体を含浸させる工程;
・木材要素のアセチル化を達成するために、含浸された木材又は木材要素に1つ又は複数の加熱工程を施す工程;
・アセチル化木材又は木材要素を過剰なアセチル化流体から分離する工程。
3C=3-カレン
αP=α-ピネン
βP=β-ピネン
αTA=α-酢酸テルピニル
fen=フェンコン
lim=リモネン
cym=p-シメン
cam=カンフェン
ACN=アセトニトリル
EAc=酢酸エチル
MAc=酢酸メチル
αT=α-テルピネン
実験は、Accoya(登録商標)アセチル化無垢材を製造する工業的木材アセチル化プラントから得られた利用後のアセチル化流体から蒸留して得られた酢酸を用いて実施した。
結晶化セットアップにおいて、Baで標識された不純酢酸100mLを循環させた。冷却水は13.0℃とした。酸及び冷水を温度平衡に達するまで循環させた。その後、50mgの結晶酢酸種をセットアップの結晶化ゾーンに配置し、不純酢酸の結晶化を起こした。15分後、Bbで標識された母液をセットアップから排出した。77mLの母液を回収した。セットアップの冷却を停止し、結晶を融解して、Bdで標識された精製酢酸18mLを得た。
この例では、酢酸の精製は、比較的多量の不純物(例えば、再循環を繰り返すと生じる)の存在下で行われる。この目的のために、80mLの不純酢酸は、工業グレードのリモネン、3-カレン、α-ピネン、カンフェン、パラ-シメン、β-ピネン、及び酢酸メチルによってさらに汚染した。生成された非常に不純な酢酸は、Caと標識した。
結晶化セットアップにおいて、Daで標識された不純酢酸95mL及び水5mLからなる混合物を循環させた。冷却水は7.0℃とした。混合物Da及び冷水を温度平衡に達するまで循環させた。その後、50mgの結晶酢酸種をセットアップの結晶化ゾーンに配置し、不純酢酸の結晶化を起こした。冷却水は5.0℃とした。20分後、Dbで標識された母液をセットアップから排出した。88mLの母液を回収した。セットアップの冷却を停止し、結晶を融解して、Ddで標識された精製酢酸12mLを得た。
Claims (20)
- 木材をアセチル化する処理から回収された利用後のアセチル化流体を精製する方法であって、前記回収されたアセチル化流体が酢酸を含み、前記方法は、前記回収されたアセチル化流体を結晶の形成下で酢酸の融点未満に冷却すること、及び前記結晶を前記流体から分離することを含む、方法。
- 塩化物、アセトニトリル、酢酸メチル及び酢酸エチルなどの酢酸エステル、テルペン、テルペノイド、及びそれらの組み合わせからなる群から選択される不純物を除去することを含む、請求項1に記載の方法。
- 前記木材が、無垢材(solid wood)、ベニヤ板、及び木材要素からなる群から選択される、請求項1又は2に記載の方法。
- 前記木材をアセチル化する処理が、前記木材を、無水酢酸を含むアセチル化流体、好ましくは無水酢酸からなるアセチル化流体に供することを含む、請求項1~3のいずれか1項に記載の方法。
- 前記回収されたアセチル化流体を、酢酸の1つ又は複数の種晶の存在下で冷却することを含む、請求項1~4のいずれか1項に記載の方法。
- (a)前記回収されたアセチル化流体を結晶の形成下で酢酸の融点未満に冷却する工程;
(b)前記結晶の第1の部分を融解させて酢酸融解物を得て、前記結晶の第2の部分を保持する工程;
(c)前記酢酸融解物を再循環させる工程;
(d)前記融解物を、前記保持された結晶の少なくとも一部の存在下で、酢酸の融点未満に冷却する工程;
を含む、請求項5に記載の方法。 - 前記第1の部分が、前記工程(a)で形成された結晶の60%~99%、好ましくは85%~95%を含む、請求項6に記載の方法。
- 種晶を別々に添加することを含む、請求項5~7のいずれか1項に記載の方法。
- 前記回収されたアセチル化流体が、無水酢酸及び酢酸を含む、請求項1~8のいずれか1項に記載の方法。
- 前記流体が冷却される前に、前記回収されたアセチル化流体を蒸留などによる無水酢酸の除去に供することを含む、請求項1~9のいずれか1項に記載の方法。
- 前記冷却が、酢酸の融点未満の温度まで行われる、請求項10に記載の方法。
- 前記冷却が、0°~16℃、好ましくは10℃~15℃の範囲の温度まで行われる、請求項11に記載の方法。
- 前記形成された結晶を洗浄することを含む、請求項1~12のいずれか1項に記載の方法。
- 複数の後続の融解工程及び再結晶化工程を含む、請求項1~13のいずれか1項に記載の方法。
- 前記結晶を分離した後に残った前記流体を再循環させ、再び冷却工程及び結晶化工程を実施し、前記再循環は20~200回、好ましくは50~100回行う、請求項1~14のいずれか1項に記載の方法。
- 木材のアセチル化のための方法であって、前記木材を、木材アセチル化条件下で、無水酢酸及び/又は酢酸を含むアセチル化流体と接触させ、アセチル化された木材と酢酸を含む利用後のアセチル化流体とを得ること、及び前記利用後のアセチル化流体を請求項1~15のいずれか1項に記載の方法によって精製すること、を含む方法。
- 酢酸を脱水してケテンを製造する際の酢酸反応物としての、請求項1~15のいずれか1項に記載の方法により得られた精製酢酸の使用。
- 酢酸をケテンと反応させて無水酢酸を製造する際の酢酸反応物としての、請求項1~15のいずれか1項に記載の方法により得られた精製酢酸の使用。
- 前記製造されたケテンが前記無水酢酸の製造における反応物として使用されるように、前記ケテンの製造と前記無水酢酸の製造とが組み合わせられている方法における、請求項17又は18に記載の使用であって、別の供給源からの酢酸と混合されていてもよい前記精製された酢酸が、前記ケテンの製造、前記無水酢酸の製造、又はその両方において、用いられる、使用。
- 木材のアセチル化及び無水酢酸の製造のための統合された方法であって、前記木材のアセチル化のための方法が、請求項16に記載の方法であり、これにより、精製された酢酸が得られ、新鮮な酢酸と混合されていてもよい前記精製された酢酸が、請求項19に記載のケテン及び無水酢酸の製造に使用され、これにより得られた無水酢酸が、木材のアセチル化のための前記方法で使用される前記アセチル化流体に提供される、方法。
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EP20188106 | 2020-07-28 | ||
EP20188106.7 | 2020-07-28 | ||
PCT/EP2021/071221 WO2022023452A1 (en) | 2020-07-28 | 2021-07-28 | Purification of wood acetylation fluid |
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EP (1) | EP4188901A1 (ja) |
JP (1) | JP2023548997A (ja) |
CN (1) | CN115989213A (ja) |
CL (1) | CL2023000276A1 (ja) |
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DE19718088A1 (de) * | 1997-04-29 | 1998-11-05 | Basf Ag | Verfahren zur Kristallisation durch Verdampfung und Brüdenkondensation |
CN103481342B (zh) | 2008-02-01 | 2018-09-07 | 泰坦木业有限公司 | 乙酰化的木材 |
US7612232B2 (en) | 2008-03-27 | 2009-11-03 | Celanese International Corporation | Purification of acetic acid from wood acetylation process |
SG183181A1 (en) | 2010-02-04 | 2012-09-27 | Titan Wood Ltd | Process for the acetylation of wood elements |
RU2621044C2 (ru) | 2012-02-07 | 2017-05-31 | Тайтен Вуд Лимитед | Способ ацетилирования древесины и ацетилированная древесина |
WO2013139937A2 (en) | 2012-03-21 | 2013-09-26 | Titan Wood Limited | Method for the modification of wood |
CA2955083C (en) | 2014-07-16 | 2023-02-28 | Tricoya Technologies Ltd | Process for the acetylation of wood |
GB201412837D0 (en) | 2014-07-18 | 2014-09-03 | Tricoya Technologies Ltd | Recovery and use of wood acetylation fluid |
CA2957812C (en) * | 2014-08-19 | 2020-09-22 | Solvay Acetow Gmbh | Process for the recovery of carboxylic acid and wood treatment process |
CN106800605A (zh) * | 2017-01-20 | 2017-06-06 | 华南理工大学 | 一种纳米纤维素的制备方法 |
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2021
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MX2023001231A (es) | 2023-07-11 |
WO2022023452A1 (en) | 2022-02-03 |
EP4188901A1 (en) | 2023-06-07 |
US20230271912A1 (en) | 2023-08-31 |
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