JP2014523862A - カルボニル化プロセスからの芳香族化合物の除去 - Google Patents
カルボニル化プロセスからの芳香族化合物の除去 Download PDFInfo
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- JP2014523862A JP2014523862A JP2014509435A JP2014509435A JP2014523862A JP 2014523862 A JP2014523862 A JP 2014523862A JP 2014509435 A JP2014509435 A JP 2014509435A JP 2014509435 A JP2014509435 A JP 2014509435A JP 2014523862 A JP2014523862 A JP 2014523862A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
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- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
【選択図】なし
Description
[0002]本発明は、吸着剤を含む保護床を用いて、カルボニル化プロセスに供給される反応物質組成物から芳香族化合物を除去する方法に関する。
[0082]本発明の一態様にしたがって、78wppmのキシレン類を含む15.9gのメタノール供給流を、吸着剤を含む保護床にメタノールを通すことによって予備処理した。吸着剤のそれぞれは粒状活性炭であり、Fisherbrand(登録商標)Activated Carbon Charcoal6〜14メッシュ、Calgon SGL(登録商標)8×30、及びCalgon CAL(登録商標)12×40を含んでいた。ブランクも試験した。吸着剤のタイプ及び吸着剤の装填量を下表1に示す。保護床の後に試料を採取して、残留するキシレン類の量を測定した。保護床は、20℃〜35℃の温度に維持した。表1における結果は、活性炭吸着剤を用いてキシレン類の濃度を低下させる有効性を示す。
[0083]非揮発性残渣(NVR)試験を用いて、メタノールに曝露した際に吸着剤から脱着する非揮発性物質の量を求めた。吸着剤をメタノール中に浸漬し、濾過した。メタノールを蒸発させることによってNVRを測定した。実施例1において用いた吸着剤に関する結果を表2に示す。
Claims (15)
- (i)メタノール、酢酸メチル、ギ酸メチル、ジメチルエーテル、及びこれらの混合物からなる群から選択される反応物質、及び(ii)芳香族化合物を含む反応物質組成物を、活性炭、ゼオライト、活性化アモルファスクレイ、金属酸化物、及びシリカ質吸着剤からなる群から選択される吸着剤を含む保護床と接触させて脱芳香族反応物質組成物を形成し;
水、酢酸、酢酸メチル、ヨウ化メチル、及び触媒を含む反応媒体を含む反応器内において、一酸化炭素を脱芳香族反応物質組成物と反応させて、酢酸を含む反応溶液を生成させ;そして
反応器から、芳香族化合物を実質的に含まない反応溶液を排出する;
ことを含む、低い芳香族含量を有するカルボニル化生成物を製造するためのカルボニル化方法。 - 反応物質組成物1gに対して少なくとも6mgの吸着剤を用いる、請求項1に記載の方法。
- 反応物質組成物が、反応物質組成物の全重量を基準として少なくとも1wppmの芳香族化合物を含む、請求項1〜2のいずれかに記載の方法。
- 芳香族化合物が、ベンゼン、トルエン、キシレン類、エチルベンゼン、ナフタレン、ベンゼン誘導体、及びこれらの混合物からなる群から選択される、請求項1〜3のいずれかに記載の方法。
- 脱芳香族反応物質組成物が、脱芳香族反応物質組成物の全重量を基準として40wppm未満の芳香族化合物を含む、請求項1〜4のいずれかに記載の方法。
- 反応溶液が、反応溶液の全重量を基準として40wppm未満の芳香族化合物を含む、請求項1〜5のいずれかに記載の方法。
- 脱芳香族反応物質組成物が反応物質組成物よりも低い芳香族化合物の濃度を有する、請求項1〜6のいずれかに記載の方法。
- 芳香族化合物の少なくとも40%を保護床によって除去する、請求項1〜7のいずれかに記載の方法。
- 保護床が反応器への入口に隣接している、請求項1〜8のいずれかに記載の方法。
- ガスクロマトグラフィー及びUV分光光度測定からなる群から選択されるオンライン分析器を用いて反応物質組成物中の芳香族化合物の濃度を測定することを更に含む、請求項1〜9のいずれかに記載の方法。
- 保護床の前に、反応物質組成物よりも少ない芳香族化合物を含む新しい反応物質を反応物質組成物に加えることを更に含む、請求項10に記載の方法。
- 反応物質組成物がアミンを更に含み、脱芳香族反応物質組成物を交換樹脂と接触させて、減少したアミン含量を有する精製した脱芳香族反応物質組成物を生成させることを更に含む、請求項1〜11のいずれかに記載の方法。
- 精製した脱芳香族反応物質組成物が、精製した脱芳香族反応物質組成物の全重量を基準として1wppm未満のアミンを含む、請求項12に記載の方法。
- 反応物質組成物が、反応物質組成物の全重量を基準として100wppm未満のアミンを含む、請求項12及び13のいずれかに記載の方法。
- 交換樹脂がスルホン化スチレン−ジビニルベンゼンコポリマーを含む、請求項12、13、及び14のいずれかに記載の方法。
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US13/462,979 US8952196B2 (en) | 2011-05-05 | 2012-05-03 | Removal of aromatics from carbonylation process |
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JP2014234383A (ja) * | 2013-06-05 | 2014-12-15 | 千代田化工建設株式会社 | カルボニル化合物の製造方法 |
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US20150148562A1 (en) | 2015-05-28 |
CN103502195B (zh) | 2015-09-02 |
WO2012151377A1 (en) | 2012-11-08 |
JP6047147B2 (ja) | 2016-12-21 |
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