KR20170021850A - 디페닐메탄 시리즈의 디- 및 폴리아민의 제조 방법 - Google Patents
디페닐메탄 시리즈의 디- 및 폴리아민의 제조 방법 Download PDFInfo
- Publication number
- KR20170021850A KR20170021850A KR1020177001651A KR20177001651A KR20170021850A KR 20170021850 A KR20170021850 A KR 20170021850A KR 1020177001651 A KR1020177001651 A KR 1020177001651A KR 20177001651 A KR20177001651 A KR 20177001651A KR 20170021850 A KR20170021850 A KR 20170021850A
- Authority
- KR
- South Korea
- Prior art keywords
- aniline
- reactor
- formaldehyde
- mass flow
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 76
- 230000008569 process Effects 0.000 title claims abstract description 41
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical class C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920000768 polyamine Polymers 0.000 title claims description 30
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 317
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 294
- 150000007854 aminals Chemical class 0.000 claims description 61
- 238000006243 chemical reaction Methods 0.000 claims description 54
- 239000011541 reaction mixture Substances 0.000 claims description 40
- 150000004985 diamines Chemical class 0.000 claims description 29
- 239000002253 acid Substances 0.000 claims description 26
- 239000012074 organic phase Substances 0.000 claims description 25
- 150000001408 amides Chemical class 0.000 claims description 23
- 239000003377 acid catalyst Substances 0.000 claims description 22
- 239000008346 aqueous phase Substances 0.000 claims description 15
- PAYRUJLWNCNPSJ-UHFFFAOYSA-O phenylazanium Chemical class [NH3+]C1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-O 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 19
- 238000009472 formulation Methods 0.000 abstract description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 33
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 30
- 238000004519 manufacturing process Methods 0.000 description 22
- 238000002156 mixing Methods 0.000 description 14
- 230000008707 rearrangement Effects 0.000 description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 238000005191 phase separation Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 8
- 238000006386 neutralization reaction Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000007858 starting material Substances 0.000 description 8
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000004821 distillation Methods 0.000 description 6
- 239000008098 formaldehyde solution Substances 0.000 description 6
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 230000005588 protonation Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 125000003277 amino group Chemical group 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- MMCPOSDMTGQNKG-UHFFFAOYSA-N anilinium chloride Chemical compound Cl.NC1=CC=CC=C1 MMCPOSDMTGQNKG-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000006462 rearrangement reaction Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 150000007522 mineralic acids Chemical class 0.000 description 3
- -1 polyphenylene Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- SQMOOVFBFVTTGF-UHFFFAOYSA-N 1-benzyl-1-phenylhydrazine Chemical compound C=1C=CC=CC=1N(N)CC1=CC=CC=C1 SQMOOVFBFVTTGF-UHFFFAOYSA-N 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- NHOWLEZFTHYCTP-UHFFFAOYSA-N benzylhydrazine Chemical compound NNCC1=CC=CC=C1 NHOWLEZFTHYCTP-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- DYDNPESBYVVLBO-UHFFFAOYSA-N formanilide Chemical compound O=CNC1=CC=CC=C1 DYDNPESBYVVLBO-UHFFFAOYSA-N 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 238000000622 liquid--liquid extraction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- YQYUWUKDEVZFDB-UHFFFAOYSA-N mmda Chemical compound COC1=CC(CC(C)N)=CC2=C1OCO2 YQYUWUKDEVZFDB-UHFFFAOYSA-N 0.000 description 1
- OHQOKJPHNPUMLN-UHFFFAOYSA-N n,n'-diphenylmethanediamine Chemical compound C=1C=CC=CC=1NCNC1=CC=CC=C1 OHQOKJPHNPUMLN-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 101150025733 pub2 gene Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
- C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
- C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton
-
- 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
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00583—Features relative to the processes being carried out
- B01J2219/0059—Sequential processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14173582.9 | 2014-06-24 | ||
| EP14173582 | 2014-06-24 | ||
| PCT/EP2015/063923 WO2015197520A1 (de) | 2014-06-24 | 2015-06-22 | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170021850A true KR20170021850A (ko) | 2017-02-28 |
Family
ID=50980958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020177001651A Withdrawn KR20170021850A (ko) | 2014-06-24 | 2015-06-22 | 디페닐메탄 시리즈의 디- 및 폴리아민의 제조 방법 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10125091B2 (enExample) |
| EP (1) | EP3160936B1 (enExample) |
| JP (1) | JP6742923B2 (enExample) |
| KR (1) | KR20170021850A (enExample) |
| CN (1) | CN106458845B (enExample) |
| HU (1) | HUE057295T2 (enExample) |
| PT (1) | PT3160936T (enExample) |
| SA (1) | SA516380564B1 (enExample) |
| WO (1) | WO2015197520A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT3160935T (pt) * | 2014-06-24 | 2022-01-27 | Covestro Intellectual Property Gmbh & Co Kg | Processo para a produção de diaminas e poliaminas da gama difenilmetano |
| WO2018114771A1 (de) | 2016-12-22 | 2018-06-28 | Covestro Deutschland Ag | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
| CN110291063B (zh) * | 2016-12-22 | 2022-07-05 | 科思创德国股份有限公司 | 在不同的生产能力下制备二苯基甲烷系列的二胺和多胺的方法 |
| EP3558928B1 (de) * | 2016-12-22 | 2021-01-20 | Covestro Intellectual Property GmbH & Co. KG | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe bei unterschiedlichen produktions-kapazitäten |
| EP3558926B1 (de) | 2016-12-22 | 2021-01-20 | Covestro Intellectual Property GmbH & Co. KG | Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe |
| CN114315598B (zh) * | 2020-09-29 | 2024-02-02 | 万华化学集团股份有限公司 | 一种二苯基甲烷系列二胺和多胺的制备方法 |
| US11542223B1 (en) * | 2022-07-21 | 2023-01-03 | Covestro Llc | Process for preparing di- and polyamines of the diphenyl methane series |
| EP4345088B1 (en) | 2022-09-29 | 2025-10-22 | Covestro Deutschland AG | A process for preparing di- and polyamines of the diphenyl methane series |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE844896C (de) | 1944-04-04 | 1952-09-15 | Bayer Ag | Verfahren zur Herstellung von organischen Isocyanaten |
| GB1517585A (en) | 1974-11-13 | 1978-07-12 | Mobay Chemical Corp | Process for the production of a polyamino-polyphenyl-(poly)-methylene polyamine |
| US4792624A (en) * | 1987-02-26 | 1988-12-20 | The Dow Chemical Company | Process for polymeric MDA, recycle of finished polymeric MDA |
| JP2825604B2 (ja) | 1990-04-11 | 1998-11-18 | 三井化学株式会社 | メチレン架橋されたポリアリールアミンの製造方法 |
| DE4021712A1 (de) * | 1990-07-07 | 1992-01-09 | Basf Ag | Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenol-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl |
| US5286760A (en) | 1992-10-09 | 1994-02-15 | Miles, Inc. | Process for reducing impurity levels in methylene diphenyamines |
| DE19804915A1 (de) * | 1998-02-07 | 1999-08-12 | Basf Ag | Verfahren zur Herstellung von Methylendi(phenylamin) und Methylendi(phenylisocyanat) |
| DE19817691A1 (de) | 1998-04-21 | 1999-10-28 | Basf Ag | Verfahren zur Herstellung von Mischungen aus Diphenylmehandiisocyanaten und Polyphenylen-polymethylen-polyisocyanaten mit vermindertem Gehalt an chlorierten Nebenprodukten und verminderter Jodfarbzahl |
| DE10006452A1 (de) | 2000-02-14 | 2001-08-16 | Bayer Ag | Verfahren zur Herstellung von Diaminodiphenylmethanen |
| DE102004032416A1 (de) | 2004-07-05 | 2006-02-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polyaminen der Diphenylmethanreihe bei niedriger Protonierung |
| DE102004052370A1 (de) | 2004-10-28 | 2006-05-04 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
| DE102006004047A1 (de) | 2006-01-28 | 2007-08-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
| DE102006004041A1 (de) | 2006-01-28 | 2007-08-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
| DE102008015123A1 (de) | 2008-03-20 | 2009-09-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe |
| KR101499758B1 (ko) * | 2010-12-29 | 2015-03-06 | 완후아 케미컬 그룹 코., 엘티디 | 고속 혼합 반응기 및 그의 사용방법 |
| PT3160935T (pt) * | 2014-06-24 | 2022-01-27 | Covestro Intellectual Property Gmbh & Co Kg | Processo para a produção de diaminas e poliaminas da gama difenilmetano |
-
2015
- 2015-06-22 JP JP2016575046A patent/JP6742923B2/ja active Active
- 2015-06-22 CN CN201580034279.8A patent/CN106458845B/zh not_active Expired - Fee Related
- 2015-06-22 KR KR1020177001651A patent/KR20170021850A/ko not_active Withdrawn
- 2015-06-22 PT PT157312950T patent/PT3160936T/pt unknown
- 2015-06-22 HU HUE15731295A patent/HUE057295T2/hu unknown
- 2015-06-22 WO PCT/EP2015/063923 patent/WO2015197520A1/de not_active Ceased
- 2015-06-22 EP EP15731295.0A patent/EP3160936B1/de active Active
- 2015-06-22 US US15/318,102 patent/US10125091B2/en active Active
-
2016
- 2016-12-21 SA SA516380564A patent/SA516380564B1/ar unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SA516380564B1 (ar) | 2020-11-03 |
| CN106458845B (zh) | 2019-10-22 |
| JP2017520564A (ja) | 2017-07-27 |
| HUE057295T2 (hu) | 2022-05-28 |
| JP6742923B2 (ja) | 2020-08-19 |
| CN106458845A (zh) | 2017-02-22 |
| PT3160936T (pt) | 2021-12-29 |
| US20170107171A1 (en) | 2017-04-20 |
| EP3160936A1 (de) | 2017-05-03 |
| WO2015197520A1 (de) | 2015-12-30 |
| EP3160936B1 (de) | 2021-10-13 |
| US10125091B2 (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20170021850A (ko) | 디페닐메탄 시리즈의 디- 및 폴리아민의 제조 방법 | |
| JP6655559B2 (ja) | ジフェニルメタン系ジアミンおよびポリアミンの製造方法 | |
| JP2010270147A (ja) | メチレンジアニリンおよびメチレンビス（フェニルイソシアナート）の製造方法 | |
| JP6728054B2 (ja) | イソシアネートの製造方法 | |
| JP2016520038A (ja) | ジフェニルメタンシリーズのジアミン及びポリアミンの製造方法 | |
| US10689322B2 (en) | Process for preparation of di- and polyamines of the diphenylmethane series | |
| KR20150003818A (ko) | 방향족 아민을 포함하는 물질 혼합물, 특히 미정제 아닐린의 물질 혼합물의 처리방법 | |
| US20100105951A1 (en) | Process for preparing diphenylmethanediamine | |
| CN116783156B (zh) | 溴代链烷酸的氨解方法 | |
| CN101326153B (zh) | 制备二氨基二苯基甲烷的方法 | |
| CN110072840B (zh) | 在不同生产能力下生产二苯基甲烷系列的二胺和多胺的方法 | |
| US10640453B2 (en) | Method of producing diamines and polyamines of the diphenylmethane series | |
| US10640455B1 (en) | Method of producing diamines and polyamines of the diphenylmethane series | |
| US10633327B1 (en) | Method of producing diamines and polyamines of the diphenylmethane series at different production capacities | |
| WO2025137843A1 (zh) | 二苯基甲烷系列的二胺和多胺的制备方法 | |
| CN102666474A (zh) | 在mda合成中成本有效地分离均相催化剂的两步方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0105 | International application |
Patent event date: 20170119 Patent event code: PA01051R01D Comment text: International Patent Application |
|
| PG1501 | Laying open of application | ||
| PC1203 | Withdrawal of no request for examination |