JPH10504556A - 芳香族酸の製造に際しての共沸蒸留による酢酸の脱水 - Google Patents
芳香族酸の製造に際しての共沸蒸留による酢酸の脱水Info
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- JPH10504556A JPH10504556A JP8507853A JP50785396A JPH10504556A JP H10504556 A JPH10504556 A JP H10504556A JP 8507853 A JP8507853 A JP 8507853A JP 50785396 A JP50785396 A JP 50785396A JP H10504556 A JPH10504556 A JP H10504556A
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- carboxylic acid
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- 238000010533 azeotropic distillation Methods 0.000 title claims abstract description 32
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims description 122
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 230000018044 dehydration Effects 0.000 title description 3
- 238000006297 dehydration reaction Methods 0.000 title description 3
- 159000000032 aromatic acids Chemical class 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 160
- 229910001868 water Inorganic materials 0.000 claims abstract description 158
- 238000010992 reflux Methods 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 52
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims abstract description 34
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007791 liquid phase Substances 0.000 claims abstract description 23
- 239000002243 precursor Substances 0.000 claims abstract description 23
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 20
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 125000003118 aryl group Chemical group 0.000 claims abstract description 9
- 238000004821 distillation Methods 0.000 claims description 33
- 238000009835 boiling Methods 0.000 claims description 23
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 22
- 239000012074 organic phase Substances 0.000 claims description 21
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 20
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 claims description 12
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 claims description 12
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 7
- 229910001385 heavy metal Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- 235000014113 dietary fatty acids Nutrition 0.000 claims 1
- 229930195729 fatty acid Natural products 0.000 claims 1
- 239000000194 fatty acid Substances 0.000 claims 1
- 150000004665 fatty acids Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 abstract description 18
- 230000003647 oxidation Effects 0.000 abstract description 17
- -1 for example Chemical compound 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000008346 aqueous phase Substances 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000004044 response Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000052 vinegar Substances 0.000 description 5
- 235000021419 vinegar Nutrition 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 3
- 150000001242 acetic acid derivatives Chemical class 0.000 description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004508 fractional distillation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 241000219289 Silene Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
- C07C53/08—Acetic acid
-
- 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
- C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/14—Monocyclic dicarboxylic acids
- C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
- C07C63/26—1,4 - Benzenedicarboxylic acid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/19—Acid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/20—Power plant
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.ジカルボン酸の前駆物質を、低級脂肪族カルボン酸を含む水性液相媒質中 で重金属触媒系の存在下に酸化し、この酸化に伴って該脂肪族カルボン酸および 水を含む頭部蒸気流が生成し、この頭部蒸気流を凝縮させて脂肪族カルボン酸お よび水を含有する液相供給流を生成させ、そしてこの供給流を共沸蒸留して脂肪 族カルボン酸および減少した量の水を含有する塔底生成物を得ることを含む、芳 香族ジカルボン酸の製造方法であって、 (a)共沸蒸留される供給流が供給流中の脂肪族カルボン酸と水を合わせた 重量を基準として20〜40重量%の範囲内の水分を有し; (b)酢酸イソブチル、酢酸n−プロピル、または酢酸イソブチルと酢酸n −プロピルの沸点の間の沸点を有する共留剤を共留剤として使用し; (c)該共留剤を含む単一有機相還流により蒸留を操作し;そして (d)塔底生成物中の脂肪族カルボン酸と水を合わせた重量を基準として2 〜12重量%の範囲内の量の水を含有する、実質的に共留剤を含有しない塔底生 成物を得る ことを特徴とする方法。 2.ジカルボン酸の前駆物質を、低級脂肪族カルボン酸を含む水性液相媒質中 で重金属触媒系の存在下に酸化し、この酸化に伴って該脂肪族カルボン酸および 水を含む頭部蒸気流が生成し、この頭部蒸気流を凝縮させて脂肪族カルボン酸お よび水を含有する液相供給流を生成させ、そしてこの供給流を蒸留塔内で共沸蒸 留して脂肪族カルボン酸および減少した量の水を含有する塔底生成物を得ること を含む、芳香族ジカルボン酸の製造方法であって、反応器からの頭部蒸留流を、 他の供給源からの水を添加して、または添加せずに処理して、供給流中の脂肪族 カルボン酸と水を合わせた重量に対して20〜40重量%の水分を有する供給流 を生成させ、これにより共留剤として酢酸n−プロピル、酢酸イソブチル、また は中間の沸点を有する共留剤を用いかつ有機相還流のみを用いて共沸蒸留を行う ことができ、一方、脂肪族カルボン酸と水を合わせた含量を基準として2〜12 重量%の範囲内の量の水を含有しかつ実質的に共留剤を含有しない塔底生成物が 確実に得られることを特徴とする方法。 3.共沸蒸留帯域の下限が供給流の導入地点より下方にある、請求項1または 2記載の方法。 4.共留剤として酢酸n−プロピルを使用する、請求項1、2または3記載の 方法。 5.供給流の水分が30重量%未満である、請求項4記載の方法。 6.塔底生成物の水分が、塔底生成物の脂肪族カルボン酸と水を合わせた含量 を基準として3〜10重量%からなる、請求項1〜5のいずれか1項記載の方法 。 7.さらに、供給流を共沸帯域の下限より上方の位置で塔に導入し、そして前 駆物質を供給流の導入位置の領域で塔から取り出すことを特徴とする、請求項1 〜6のいずれか1項記載の方法。 8.前駆物質を供給流の導入地点より上方の位置で塔から取り出すことを特徴 とする、請求項7記載の方法。 9.共沸蒸留を充填塔内で行う、請求項1〜8のいずれか1項記載の方法。 10.ジカルボン酸の前駆物質を、低級脂肪族カルボン酸を含む水性液相媒質 中で重金属触媒系の存在下に酸化し、この酸化に伴って該脂肪族カルボン酸、該 何駆物質および水を含む頭部蒸気流が生成し、この頭部蒸気流を凝縮させて脂肪 族カルボン酸、水および前駆物質を含有する液相供給流を生成させ、そしてこの 供給流を塔内で蒸留して脂肪族カルボン酸および減少した量の水を含有する塔底 生成物を得ることを含む、芳香族ジカルボン酸の製造方法であって、 水と不均一共沸混合物を形成しうる共留剤を用いて蒸留を行い; 共留剤の浸透を制御し、これにより塔底生成物は実質的に共留剤を含まず; 供給流を共沸帯域の下限より上方の位置で塔に導入し;そして 該前駆物質を供給流の導入位置の領域で塔から取り出す ことにより前駆物質を回収することを特徴とする方法。 11.蒸留塔への供給流が供給流の脂肪族酸/水を合わせた含量を基準として 40重量%以下の水分を含有する場合、および塔底生成物が実質的に共留剤を含 有せずかつ塔底生成物の脂肪族酸/水の含量を基準として2〜12重量%の水分 を含有することが要求される場合、共留剤は有機相還流のみを用いて共沸蒸留を 行うことができるものである、請求項10記載の方法。 12.共留剤が酢酸アルギルから構成される、請求項10または11記載の方 法。 13.共留剤を含む単一有機相還流を用いて蒸留を操作する、請求項10記載 の方法。 14.ジカルボン酸がテレフタル酸であり、かつ前駆物質がパラキシレンであ る、請求項1〜13のいずれか1項記載の方法。 15.反応器からの頭部蒸留流を、他の供給源からの水を添加して、または添 加せずに処理して、供給流中の脂肪族カルボン酸と水を合わせた重量に対して2 0〜40重量%の水分を有する供給流を生成させる、請求項1〜14のいずれか 1項記載の方法。 16.塔底生成物中の水の量を塔の下部セクションへの分離水供給の調節によ り制御する、請求項1〜15のいずれか1項記載の方法。 17.少なくとも1種の他の成分を含有する液相媒質からの水の分離を共沸蒸 留により行い、その際塔頂成分が主として水を含み、一方塔底生成物が該他の成 分および減少した量の水を含む方法であって、塔底生成物中の水の量を塔の下部 セクションへの分離水供給の調節により制御することを特徴とする方法。 18.塔底生成物中の水の量を制御するために、さらに還流比の調節を採用す る、請求項17記載の方法。 19.還流比の調節および分離水の供給を塔底生成物の水の濃度に直接的また は間接的に依存して行う、請求項17または18記載の方法。 20.分離水の供給を共沸帯域の下限に相当する位置またはそれより下方で塔 に導入する、請求項17〜19のいずれか1項記載の方法。 21.液相媒質が脂肪族カルボン酸および水を含み、共沸蒸留が水と不均一共 沸混合物を形成するいずれか適切な化合物を共留剤として用いて行われる、請求 項17〜20のいずれか1項記載の方法。 22.共留剤が酢酸n−ブチル、酢酸イソブチルまたは酢酸n−プロピルを含 む、請求項21記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9416980A GB9416980D0 (en) | 1994-08-23 | 1994-08-23 | Water separation |
GB9416978A GB9416978D0 (en) | 1994-08-23 | 1994-08-23 | Water separation |
GB9416980.2 | 1994-08-23 | ||
GB9416978.6 | 1994-08-23 | ||
PCT/GB1995/001933 WO1996006065A1 (en) | 1994-08-23 | 1995-08-16 | Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10504556A true JPH10504556A (ja) | 1998-05-06 |
JP3869001B2 JP3869001B2 (ja) | 2007-01-17 |
Family
ID=26305501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50785396A Expired - Fee Related JP3869001B2 (ja) | 1994-08-23 | 1995-08-16 | 芳香族酸の製造に際しての共沸蒸留による酢酸の脱水 |
Country Status (17)
Country | Link |
---|---|
US (1) | US5980696A (ja) |
EP (1) | EP0777640B1 (ja) |
JP (1) | JP3869001B2 (ja) |
KR (1) | KR100384435B1 (ja) |
CN (1) | CN1070839C (ja) |
AT (1) | ATE182576T1 (ja) |
AU (1) | AU3188595A (ja) |
BR (1) | BR9508815A (ja) |
CA (1) | CA2194688C (ja) |
DE (1) | DE69511095T2 (ja) |
ES (1) | ES2136870T3 (ja) |
IN (1) | IN192363B (ja) |
MX (1) | MX9701355A (ja) |
TR (1) | TR199501047A2 (ja) |
TW (1) | TW341563B (ja) |
WO (1) | WO1996006065A1 (ja) |
ZA (1) | ZA957046B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007269766A (ja) * | 2006-03-31 | 2007-10-18 | National Institute Of Advanced Industrial & Technology | 5−メチルヒドロキシ−2−フルフラールの製造法とその装置 |
JP2009527473A (ja) * | 2006-02-20 | 2009-07-30 | エーエムーティーパシフィック カンパニー リミテッド | 芳香族化合物の酸化処理において反応炉出口ガスから水を低減する方法 |
JP2017500348A (ja) * | 2013-12-18 | 2017-01-05 | ビーピー・コーポレーション・ノース・アメリカ・インコーポレーテッド | 芳香族カルボン酸を製造するための改良された方法および装置 |
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CN1236835C (zh) * | 2001-02-27 | 2006-01-18 | 三菱化学株式会社 | 共沸蒸馏方法 |
US6926810B2 (en) * | 2001-03-15 | 2005-08-09 | A. E. Staley Manufacturing Co. | Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex |
US6375804B1 (en) * | 2001-04-10 | 2002-04-23 | Arco Chemical Technology, L.P. | Tertiary butyl acetate recovery |
US7048835B2 (en) * | 2002-02-12 | 2006-05-23 | Amt International, Inc. | System and method for acetic acid recovery during terephthalic acid production |
ITMI20021423A1 (it) * | 2002-06-27 | 2003-12-29 | Eurotecnica Dev & Licensing S | Processo per la separazione dell'acqua prodotta nella ossidazione catalitica di idrocarburi aromatici ad acidi aromatici policarbossilici |
AU2003261858A1 (en) | 2002-08-30 | 2004-03-19 | Mitsubishi Chemical Corporation | Separator, reactor, and process for producing aromatic carboxylic acid |
ES2302470B1 (es) * | 2003-08-12 | 2009-06-09 | Amt International, Inc. | Sistema y metodo para recuperacion de acido acetico durante la produccion de acido tereftalico. |
KR100733400B1 (ko) * | 2005-08-01 | 2007-06-29 | 아신기술 주식회사 | 아세트산, 메틸아세테이트 및 물을 분리하기 위한공비증류공정 |
CN100582067C (zh) * | 2005-08-30 | 2010-01-20 | 株式会社日立工业设备技术 | 回收芳香族羧酸制造中未反应烷基苯的方法 |
WO2009013623A2 (en) * | 2007-07-18 | 2009-01-29 | Invista Technologies S.A.R.L. | Azeotropic distillation with entrainer regeneration |
CA2719804C (en) * | 2008-04-03 | 2015-11-24 | Dow Corning Corporation | Method of dehydrating acetic acid |
US8382961B2 (en) * | 2010-06-07 | 2013-02-26 | Amt International, Inc. | System and method for reduction of water consumption in purified terephthalic acid production |
GB201015986D0 (en) | 2010-09-23 | 2010-11-03 | Davy Process Techn Ltd | Process and apparatus |
CN102451573B (zh) * | 2010-11-03 | 2014-12-03 | 中国石油化工股份有限公司 | 醋酸脱水塔精馏方法 |
EP2937330A1 (en) * | 2010-11-22 | 2015-10-28 | Invista Technologies S.a r.l. | Production of aromatic carboxylic acids |
CN102653512B (zh) * | 2011-03-02 | 2014-08-20 | 中国石油化工股份有限公司 | 一种芳香族羧酸生产过程中回收醋酸及醋酸甲酯的集成工艺 |
CN102659555A (zh) * | 2012-04-17 | 2012-09-12 | 华东理工大学 | 一种采用部分冷凝技术的醋酸脱水工艺 |
CN103848733B (zh) * | 2012-12-04 | 2015-12-23 | 新鼎系统股份有限公司 | 芳香羧酸的回收脱水共沸蒸馏工艺 |
US9149736B2 (en) * | 2012-12-13 | 2015-10-06 | Invista North America S.A.R.L. | Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid |
CN104974035B (zh) * | 2014-04-11 | 2016-10-05 | 中国石化扬子石油化工有限公司 | 采用共沸精馏处理含二烷基芳烃的乙酸和水方法 |
CN105017004A (zh) * | 2014-04-16 | 2015-11-04 | 中国石化扬子石油化工有限公司 | 一种共沸精馏提纯乙酸和水的快速响应方法 |
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-
1995
- 1995-08-16 EP EP95927901A patent/EP0777640B1/en not_active Expired - Lifetime
- 1995-08-16 DE DE69511095T patent/DE69511095T2/de not_active Expired - Lifetime
- 1995-08-16 ES ES95927901T patent/ES2136870T3/es not_active Expired - Lifetime
- 1995-08-16 BR BR9508815A patent/BR9508815A/pt not_active IP Right Cessation
- 1995-08-16 WO PCT/GB1995/001933 patent/WO1996006065A1/en active IP Right Grant
- 1995-08-16 AT AT95927901T patent/ATE182576T1/de active
- 1995-08-16 US US08/776,979 patent/US5980696A/en not_active Expired - Lifetime
- 1995-08-16 CN CN95194732A patent/CN1070839C/zh not_active Expired - Lifetime
- 1995-08-16 KR KR1019970701157A patent/KR100384435B1/ko not_active IP Right Cessation
- 1995-08-16 CA CA002194688A patent/CA2194688C/en not_active Expired - Fee Related
- 1995-08-16 MX MX9701355A patent/MX9701355A/es unknown
- 1995-08-16 JP JP50785396A patent/JP3869001B2/ja not_active Expired - Fee Related
- 1995-08-16 AU AU31885/95A patent/AU3188595A/en not_active Abandoned
- 1995-08-22 TW TW084108809A patent/TW341563B/zh not_active IP Right Cessation
- 1995-08-22 IN IN1562DE1995 patent/IN192363B/en unknown
- 1995-08-22 ZA ZA957046A patent/ZA957046B/xx unknown
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009527473A (ja) * | 2006-02-20 | 2009-07-30 | エーエムーティーパシフィック カンパニー リミテッド | 芳香族化合物の酸化処理において反応炉出口ガスから水を低減する方法 |
JP2007269766A (ja) * | 2006-03-31 | 2007-10-18 | National Institute Of Advanced Industrial & Technology | 5−メチルヒドロキシ−2−フルフラールの製造法とその装置 |
JP2017500348A (ja) * | 2013-12-18 | 2017-01-05 | ビーピー・コーポレーション・ノース・アメリカ・インコーポレーテッド | 芳香族カルボン酸を製造するための改良された方法および装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1161686A (zh) | 1997-10-08 |
DE69511095T2 (de) | 2000-04-06 |
WO1996006065A1 (en) | 1996-02-29 |
TR199501047A2 (tr) | 1996-06-21 |
KR100384435B1 (ko) | 2003-08-19 |
DE69511095D1 (de) | 1999-09-02 |
CA2194688C (en) | 2008-09-30 |
ZA957046B (en) | 1996-02-23 |
CA2194688A1 (en) | 1996-02-29 |
TW341563B (en) | 1998-10-01 |
EP0777640B1 (en) | 1999-07-28 |
JP3869001B2 (ja) | 2007-01-17 |
ES2136870T3 (es) | 1999-12-01 |
CN1070839C (zh) | 2001-09-12 |
KR970705531A (ko) | 1997-10-09 |
EP0777640A1 (en) | 1997-06-11 |
AU3188595A (en) | 1996-03-14 |
BR9508815A (pt) | 1997-11-18 |
IN192363B (ja) | 2004-04-10 |
ATE182576T1 (de) | 1999-08-15 |
MX9701355A (es) | 1997-05-31 |
US5980696A (en) | 1999-11-09 |
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