JP5883011B2 - イソシアネートの製造方法 - Google Patents
イソシアネートの製造方法 Download PDFInfo
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- JP5883011B2 JP5883011B2 JP2013533182A JP2013533182A JP5883011B2 JP 5883011 B2 JP5883011 B2 JP 5883011B2 JP 2013533182 A JP2013533182 A JP 2013533182A JP 2013533182 A JP2013533182 A JP 2013533182A JP 5883011 B2 JP5883011 B2 JP 5883011B2
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- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 2
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 3
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 claims 2
- PXUMKNJVHDOPSL-UHFFFAOYSA-N (1,3,5-trimethylcyclohexyl)methanamine Chemical compound CC1CC(C)CC(C)(CN)C1 PXUMKNJVHDOPSL-UHFFFAOYSA-N 0.000 claims 1
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- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- DUDXQIXWPJMPRQ-UHFFFAOYSA-N isocyanatomethylcyclohexane Chemical compound O=C=NCC1CCCCC1 DUDXQIXWPJMPRQ-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 208000003013 permanent neonatal diabetes mellitus Diseases 0.000 description 1
- 229910000065 phosphene Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 125000005628 tolylene group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1856—Stationary reactors having moving elements inside placed in parallel
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1862—Stationary reactors having moving elements inside placed in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
アミンとホスゲンを反応させてイソシアネートを製造する方法であって、
(a)一種以上のアミンを含有する供給流及び一種以上のホスゲンを含有する供給流を供給する工程、
(b)混合領域において上記供給流を混合して、一種以上の反応混合物を生成する工程、
(c)反応領域において上記一種以上の反応混合物を反応させる工程、及び
(d)工程(c)で得られた反応混合物を後処理する工程、
を含み、
(i)混合領域が独立して制御可能な二以上の装置から成り、該二以上の装置が相互に並列に接続され、それぞれの装置が一以上の混合ユニットを含み、又は
(ii)反応領域が独立して制御可能な二以上の装置から成り、該二以上の装置が相互に並列に接続され、それぞれの装置が一以上の反応ユニットを含み、又は
(iii)混合領域及び反応領域のそれぞれが独立して制御可能な二以上の装置から成り、該混合領域の二以上の装置が相互に並列に接続されて、それぞれの装置が一以上の混合ユニットを含み、該反応領域の二以上の装置が相互に並列に接続されてそれぞれの装置が一以上の反応ユニットを含む製造方法によって達成される。
以下では、本発明を、熱力学的および動力学的データから算出された実施例を用いて説明する。
液相中におけるTDAの液相ホスゲン化によってトルエンジイソシアネート(TDI)を製造するプラントにおいて、モノクロロベンゼンにトルエンジアミン(TDA)を溶解させた30%濃度の溶液を、混合ノズル中でホスゲン流と混合した(混合時間:11.7ms)。TDAに対するホスゲンのモル比は、10であった。ホスゲン流の混合温度は、約60℃であった。約2分の滞留時間を有する断熱管状反応器を、混合ノズルの下流に設置した。この反応器において、イソシアネート又は前駆体としての塩化カルバモイルを生成するためのアミンの反応を行った。断熱温度上昇及びHClの放出の結果として、気相が生成した。その後、二相の反応混合物を反応カラムに送給した。
上述のプラントを、定格負荷の50%のみで作動させた。従って、アミン及びホスゲン含有の供給流は半減した。その結果、混合時間は23.4ミリ秒に増加した。同時に、反応器内の滞留時間が2倍になった。TDIの収率は93.4%から80.2%に低下した。
上述のプラントにおいて、二つの平行ノズルを設置した。これらノズルは、それぞれ、プラントの定格負荷の50%用に設計されており、これにより比較例1における混合時間を実現した。定格負荷の50%でのプラントの作動中において、ノズルの一つを閉塞した。従って、第二のノズルをその設計負荷で作動させることで、混合時間を11.7msに維持した。
Claims (16)
- アミンとホスゲンを反応させてイソシアネートを製造する方法であって、
(a)一種以上のアミンを含有する供給流及び一種以上のホスゲンを含有する供給流を供給する工程、
(b)混合領域において上記供給流を混合して、一種以上の反応混合物を生成する工程、
(c)反応領域において上記一種以上の反応混合物を反応させる工程、及び
(d)工程(c)で得られた反応混合物を後処理する工程、
を含み、
(i)混合領域が独立して制御可能な二以上の装置から成り、該二以上の装置が相互に並列に接続され、それぞれの装置が一以上の混合ユニットを含み、又は
(ii)混合領域及び反応領域のそれぞれが独立して制御可能な二以上の装置から成り、該混合領域の二以上の装置が相互に並列に接続されてそれぞれの装置が一以上の混合ユニットを含み、該反応領域の二以上の装置が相互に並列に接続されてそれぞれの装置が一以上の反応ユニットを含む、
ことを特徴とする製造方法。 - 混合ユニットにおいて静的混合装置を使用する請求項1に記載の製造方法。
- 反応ユニットが、一以上の滞留反応器を含む請求項1又は2に記載の製造方法。
- 管状反応器及び/又は撹拌漕のカスケードを、滞留反応器として使用する請求項3に記載の製造方法。
- 工程(d)における後処理を、共通の装置で行う請求項1〜4の何れか1項に記載の製造方法。
- 反応を液相で行う請求項1〜5の何れか1項に記載の製造方法。
- 一種以上のアミンを含有する供給流中において、溶液又は懸濁液としてアミンが存在する請求項6に記載の製造方法。
- アミンを、
供給される一種以上のアミンを含有する供給流に対して5〜95質量%の濃度で使用する請求項6又は7に記載の製造方法。 - 第1級アミンに対するホスゲンのモル比が、15:1〜1:1である請求項6〜8の何れか1項に記載の製造方法。
- アミンが、
メチルアミン、エチルアミン、ブチルアミン、ステアリルアミン、フェニルアミン、p−トルイジン、1,4−ジアミノブタン、1,6−ジアミノヘキサン、1,8−ジアミノオクタン、1,4−ジアミノベンゼン、2,4−、及び/又は2,6−ジアミノトルエン、2,2’−、2,4’−、及び/又は4,4’−ジアミノジフェニルメタン、ジフェニルメタン系化合物のアルキル置換ジアミン、ジフェニルメタン系化合物のポリアミド混合物(アニリン−ホルムアルデヒド縮合により公知の方法で得られるもの)、p−キシレンジアミン、ペルヒドロ化2,4−及び/又は2,6−トルエンジアミン、2,2−、2,4−及び/又は4,4−ジアミノジシクロヘキシルメタン、1−アミノ−3,3,5−トリメチル−5−アミノメチルシクロヘキサン(イソホロンジアミン、略してIPDA)、リジンのエチルエステル、リジンのアミノエチルエステル、2,4−及び/又は2,6−トルエンジアミン、1,6,11−トリアミノウンデセン、並びにこれらの混合物からなる群から選択される請求項6〜9の何れか1項に記載の製造方法。 - 出発物質用の溶媒として、
モノクロロベンゼン、o−ジクロロベンゼン、トリクロロベンゼン、トルエン、キシレン、塩化メチレン、ペルクロロエチレン、トリクロロフルオロメタン、酢酸ブチル、ヘキサン、ヘプタン、オクタン、ビフェニル、酢酸エチル、1,2−ジアセトキシエタン、2−ブタノン、アセトニトリル、スルファン、又はこれらの混合物を使用する請求項6〜10の何れか1項に記載の製造方法。 - 反応を気相で行う請求項1〜5の何れか1項に記載の製造方法。
- 工程(c)から得られる一種以上の生成混合物を、一以上のクエンチ領域で冷却する請求項12に記載の製造方法。
- 混合領域、反応領域、及びクエンチ領域のそれぞれが独立して制御可能な二以上の装置から成り、
該混合領域の二以上の装置が相互に並列に接続されて、これらの並列装置が一以上の混合ユニットを含み、
該反応領域の二以上の装置が相互に並列に接続されて、これらの並列装置が一以上の反応ユニットを含み、
該クエンチ領域の二以上の装置が相互に並列に接続されて、これらの並列装置が一以上のクエンチユニットを含む請求項13に記載の製造方法。 - 反応を一種以上の不活性媒体の存在下で行う請求項12〜14の何れか1項に記載の製造方法。
- アミンは、
1,6−ジアミノヘキサン、モノマー2,4’−メチレンジ(フェニルアミン)、モノマー4,4’−メチレンジ(フェニルアミン)、2,4−トルエンジアミン、2,6−トルエンジアミン、1−アミノ−3,3,5−トリメチル−5−アミノメチルシクロヘキサン、及びこれらの混合物からなる群から選択される請求項12〜15の何れか1項に記載の製造方法。
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PCT/EP2011/067701 WO2012049158A1 (de) | 2010-10-14 | 2011-10-11 | Verfahren zur herstellung von isocyanaten |
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US9321720B2 (en) | 2010-10-14 | 2016-04-26 | Basf Se | Process for preparing isocyanates |
US8969615B2 (en) | 2011-03-31 | 2015-03-03 | Basf Se | Process for preparing isocyanates |
US8816126B2 (en) | 2011-09-02 | 2014-08-26 | Basf Se | Process for preparing isocyanates |
US8791291B2 (en) | 2011-11-29 | 2014-07-29 | Basf Se | Process for preparing isocyanates by phosgenation of the corresponding amines in the gas phase |
WO2014122180A1 (de) * | 2013-02-08 | 2014-08-14 | Bayer Materialscience Ag | Verfahren zur abtrennung eines durch phosgenierung eines primären amins in der gasphase hergestellten isocyanats aus dem gasförmigen rohprodukt der phosgenierung |
US9266824B2 (en) | 2014-01-13 | 2016-02-23 | Warsaw Orthopedic, Inc. | Methods and compositions for making an amino acid triisocyanate |
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EP3322692B1 (de) * | 2015-07-16 | 2019-07-03 | Covestro Deutschland AG | Verfahren zur herstellung von isocyanaten |
CN114749116B (zh) * | 2021-01-11 | 2024-04-09 | 万华化学集团股份有限公司 | 一种制备多异氰酸酯的方法及反应装置 |
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DE10222023A1 (de) * | 2002-05-17 | 2003-11-27 | Bayer Ag | Verfahren zur Herstellung von Isocyanaten in der Gasphase |
DE10260082A1 (de) * | 2002-12-19 | 2004-07-01 | Basf Ag | Verfahren zur kontinuierlichen Herstellung von Isocyanaten |
DE10307141A1 (de) * | 2003-02-20 | 2004-09-02 | Bayer Ag | Verfahren zur Herstellung von (Poly)isocyanaten in der Gasphase |
DE10349504A1 (de) * | 2003-10-23 | 2005-05-25 | Bayer Technology Services Gmbh | Verfahren zur Herstellung von Isocyanaten in der Gasphase |
DE102005042392A1 (de) * | 2005-09-06 | 2007-03-08 | Basf Ag | Verfahren zur Herstellung von Isocyanaten |
US7547801B2 (en) * | 2006-06-26 | 2009-06-16 | Bayer Materialscience Llc | Process for the continuous preparation of isocyanates |
ES2476248T3 (es) * | 2006-10-26 | 2014-07-14 | Basf Se | Procedimiento para la preparación de isocianatos |
JP2010508374A (ja) * | 2006-11-07 | 2010-03-18 | ビーエーエスエフ ソシエタス・ヨーロピア | イソシアネートの製造方法 |
WO2008055898A1 (de) * | 2006-11-07 | 2008-05-15 | Basf Se | Verfahren zur herstellung von isocyanaten |
US8558026B2 (en) * | 2007-08-30 | 2013-10-15 | Basf Se | Method for producing isocyanates |
KR20100075863A (ko) * | 2007-08-30 | 2010-07-05 | 바스프 에스이 | 이소시아네이트의 제조 방법 |
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JP5548684B2 (ja) * | 2008-07-23 | 2014-07-16 | ビーエーエスエフ ソシエタス・ヨーロピア | イソシアネートの製造方法 |
CN102119145B (zh) | 2008-08-07 | 2014-06-18 | 巴斯夫欧洲公司 | 制备芳香族异氰酸酯的方法 |
JP2011132160A (ja) * | 2009-12-24 | 2011-07-07 | Nippon Polyurethane Ind Co Ltd | 脂肪族ポリイソシアネートの製造方法 |
JP2011132159A (ja) * | 2009-12-24 | 2011-07-07 | Nippon Polyurethane Ind Co Ltd | 芳香族ポリイソシアネートの製造方法 |
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