DE2700339B2 - - Google Patents

Info

Publication number
DE2700339B2
DE2700339B2 DE2700339A DE2700339A DE2700339B2 DE 2700339 B2 DE2700339 B2 DE 2700339B2 DE 2700339 A DE2700339 A DE 2700339A DE 2700339 A DE2700339 A DE 2700339A DE 2700339 B2 DE2700339 B2 DE 2700339B2
Authority
DE
Germany
Prior art keywords
catalyst
carrier
solution
nickel
hours
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.)
Granted
Application number
DE2700339A
Other languages
German (de)
English (en)
Other versions
DE2700339A1 (de
DE2700339C3 (de
Inventor
Donald Charles Charleston W.Va. Best (V.St.A.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of DE2700339A1 publication Critical patent/DE2700339A1/de
Publication of DE2700339B2 publication Critical patent/DE2700339B2/de
Application granted granted Critical
Publication of DE2700339C3 publication Critical patent/DE2700339C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8896—Rhenium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/04—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups
    • C07C209/14—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of hydroxy groups or of etherified or esterified hydroxy groups
    • C07C209/16—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of hydroxy groups or of etherified or esterified hydroxy groups with formation of amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/24—Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds
    • C07C209/28—Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with other reducing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
DE2700339A 1976-01-07 1977-01-05 Katalysator zur Aminierung niedriger aliphatischer Alkanderivate Expired DE2700339C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/647,065 US4123462A (en) 1976-01-07 1976-01-07 Amination process using nickel-rhenium catalysts

Publications (3)

Publication Number Publication Date
DE2700339A1 DE2700339A1 (de) 1977-08-18
DE2700339B2 true DE2700339B2 (enExample) 1979-08-09
DE2700339C3 DE2700339C3 (de) 1980-06-19

Family

ID=24595557

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2700339A Expired DE2700339C3 (de) 1976-01-07 1977-01-05 Katalysator zur Aminierung niedriger aliphatischer Alkanderivate

Country Status (10)

Country Link
US (2) US4123462A (enExample)
JP (2) JPS6038380B2 (enExample)
BE (1) BE850144A (enExample)
CA (1) CA1083558A (enExample)
DE (1) DE2700339C3 (enExample)
FR (1) FR2337585A1 (enExample)
GB (1) GB1569714A (enExample)
IN (1) IN145670B (enExample)
IT (1) IT1082703B (enExample)
NL (1) NL180914C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163253A3 (en) * 1984-05-23 1986-12-30 Union Carbide Corporation Potentiated nickel catalysts for amination

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430262A2 (fr) * 1978-07-04 1980-02-01 Azote & Prod Chim Catalyseur et procede de fabrication d'amines a partir d'alcools
EP0002630B2 (fr) * 1977-12-12 1986-04-16 Societe Chimique De La Grande Paroisse, Azote Et Produits Chimiques Catalyseur et procédé de fabrication d'amines à partir d'alcools
US4209424A (en) 1977-12-12 1980-06-24 Societe Chimique de la Grande Paroisse, Azote et Products Chimiques Catalyst for manufacturing amines from alcohols
FR2411030A1 (fr) * 1977-12-12 1979-07-06 Azote & Prod Chim Catalyseur et procede de fabrication d'amines a partir d'alcools
US4400539A (en) * 1981-09-30 1983-08-23 Union Carbide Corporation Process for the manufacture of ethylenediamine
US4404405A (en) * 1981-09-30 1983-09-13 Union Carbide Corporation Process for the preparation of polyethylene polyamines
US4929759A (en) * 1983-07-27 1990-05-29 Basf Aktiengesellschaft Production of amines from an olefin and ammonia or a primary or secondary amine
SE461095B (sv) * 1983-09-09 1990-01-08 Berol Kemi Ab Amineringsfoerfarande med anvaendning av en ruteniumdopad nickel och/eller kovoltkatalysator
US4647701A (en) * 1984-05-23 1987-03-03 Union Carbide Corporation Processes for producing diethylenetriamine from monoethanolamine
US4827037A (en) * 1985-04-04 1989-05-02 Union Carbide Corporation Quality of catalytically prepared polyalkylene polyamines
US4772750A (en) * 1985-06-14 1988-09-20 The Dow Chemical Company Method of producing amines
GB8519425D0 (en) * 1985-08-01 1985-09-04 Ici Plc Amine production
US4709034A (en) * 1986-02-14 1987-11-24 Air Products And Chemicals, Inc. Process for the synthesis of hydroxyalkyl amines and hydroxyalkyl piperazines
US4918233A (en) * 1986-07-08 1990-04-17 Air Products And Chemicals, Inc. Production of ethylenediamine from monoethanolamine and ammonia
US4774336A (en) * 1986-10-02 1988-09-27 Texaco Inc. Process for preparing N-substituted piperazines from ethylene glycol and amines
GB8707304D0 (en) * 1987-03-26 1987-04-29 Bp Chem Int Ltd Chemical process
US4795733A (en) * 1987-11-27 1989-01-03 Gaf Corporation Hydrogenation catalyst and process for its preparation
GB8819663D0 (en) * 1988-08-18 1988-09-21 Bp Chem Int Ltd Chemical process
GB8918965D0 (en) * 1989-08-19 1989-10-04 Bp Chem Int Ltd Chemical process
DE4006540A1 (de) * 1990-03-02 1991-09-05 Huels Chemische Werke Ag Katalysatoren fuer die metathese von olefinen und funktionalisierten olefinen
US5321160A (en) * 1991-07-31 1994-06-14 Tosoh Corporation Process for producing an ethylenamine
CA2146906C (en) * 1993-12-22 1999-03-16 Stephen Wayne King Reductive amination catalysts
US5600000A (en) * 1993-12-22 1997-02-04 Union Carbide Chemicals & Plastics Technology Corporation Reductive amination processes for the selective production of amino-ethylethanolamine
EP0737669B1 (en) * 1993-12-22 1999-09-22 Union Carbide Chemicals & Plastics Technology Corporation Reductive amination processes for the selective production of aminoethylethanolamine
US5475138A (en) * 1994-07-07 1995-12-12 Pharm-Eco Laboratories Incorporated Method preparing amino acid-derived diaminopropanols
US5817593A (en) * 1995-06-02 1998-10-06 The Dow Chemical Company Catalyst and process for producing amines
US6063963A (en) * 1995-07-05 2000-05-16 Pharm-Eco Laboratories, Inc. Amino acid-derived diaminopropanols
EP0853641A1 (en) * 1995-10-04 1998-07-22 The Dow Chemical Company Amine capped polyethers and process for producing same
US5679862A (en) * 1996-03-25 1997-10-21 Chemical Research & Licensing Company Amination process
SE513250C2 (sv) * 1997-11-11 2000-08-07 Akzo Nobel Nv Amineringsförfarande för framställning av polyaminer
ATE276999T1 (de) * 1998-07-21 2004-10-15 Lonza Ag Verfahren zur herstellung von aminen
US6534441B1 (en) * 1999-03-06 2003-03-18 Union Carbide Chemicals & Plastics Technology Corporation Nickel-rhenium catalyst for use in reductive amination processes
US6309758B1 (en) * 1999-05-06 2001-10-30 W. R. Grace & Co.-Conn. Promoted porous catalyst
DE10145119A1 (de) * 2001-09-13 2003-04-03 Basf Ag Verfahren zur Herstellung von Aminen
EP1499231A4 (en) * 2002-03-08 2007-09-26 Sensys Medical Inc COMPACT DEVICE FOR NONINVASIVE MEASUREMENT OF GLUCOSE BY NEAR-INFRARED SPECTROSCOPY
US7022645B2 (en) * 2003-08-04 2006-04-04 Catalytic Distillation Technologies Ni hydrogenation catalysts, manufacture and use
US7131446B2 (en) * 2004-03-25 2006-11-07 Tang Kenneth Y Light-triggered tattoo process
BRPI0712800B1 (pt) * 2006-06-07 2016-12-13 Procter & Gamble processos para converter glicerol em aminoalcoóis
US7619119B2 (en) * 2006-06-07 2009-11-17 The Procter & Gamble Company Processes for converting glycerol to amino alcohols
US7619118B2 (en) 2006-06-07 2009-11-17 The Procter & Gamble Company Process for the conversion of glycerol to propylene glycol and amino alcohols
US8563778B2 (en) * 2008-01-03 2013-10-22 Akzo Nobel N.V. Process to prepare ethylene amines
US8728430B2 (en) 2008-06-19 2014-05-20 Honda Motor Co., Ltd. Low temperature single-wall carbon nanotube synthesis
EP2346810B1 (en) 2008-10-06 2015-08-19 Dow Global Technologies LLC Methods for making ethanolamine(s) and ethyleneamine(s) from ethylene oxide and ammonia, and related methods
US8187997B2 (en) * 2008-10-06 2012-05-29 Union Carbide Chemicals & Technology LLC Low metal loaded, catalyst compositions including acidic mixed metal oxide as support
WO2010042159A1 (en) * 2008-10-06 2010-04-15 Union Carbide Chemicals & Plastics Technology Llc Methods of making cyclic, n-amino functional triamines
US8124808B2 (en) * 2008-10-06 2012-02-28 Union Carbide Chemicals & Plastics Technology Llc Transalkoxylation of nucleophilic compounds
CN102239002B (zh) 2008-10-06 2013-10-30 联合碳化化学品及塑料技术公司 低金属负载的氧化铝载体的催化剂组合物和氨基化方法
CN102171178B (zh) * 2008-10-06 2015-07-29 联合碳化化学品及塑料技术公司 乙二胺和其它乙撑胺的连续氨基转移
ES2561362T3 (es) * 2008-10-06 2016-02-25 Union Carbide Chemicals & Plastics Technology Llc Método de fabricación de etilenaminas
CN101875014B (zh) * 2009-11-17 2012-10-03 中国科学院大连化学物理研究所 一种在临氢条件下一乙醇胺和氨转化为乙二胺的催化剂
WO2011146841A1 (en) 2010-05-21 2011-11-24 Hrd Corp. Process for upgrading law value renewable oils
DE102011004465A1 (de) 2010-09-10 2012-03-15 Evonik Degussa Gmbh Verfahren zur direkten Aminierung sekundärer Alkohole mit Ammoniak zu primären Aminen
DE102011075162A1 (de) 2010-12-08 2012-06-14 Evonik Degussa Gmbh Verfahren zur homogen-katalysierte, hochselektiven direkten Aminierung von primären Alkoholen mit Ammoniak zu primären Aminen bei hohem Volumenverhältnis von Flüssig- zu Gasphase und/oder hohen Drücken
DE102011003595B4 (de) * 2011-02-03 2014-04-17 Evonik Degussa Gmbh Herstellung von in ihrer Hauptkette linearen primären Diaminen für Polyamidsynthesen
EP2678306B1 (de) 2011-02-21 2017-06-21 Evonik Degussa GmbH Verfahren zur direkten aminierung von alkoholen mit ammoniak zu primären aminen mittels eines xantphos katalysatorsystems
JP6158831B2 (ja) * 2011-12-22 2017-07-05 ダウ グローバル テクノロジーズ エルエルシー ジエタノールアミンの還元アミノ化および生じた生成物混合物
US8952198B2 (en) 2013-01-30 2015-02-10 Ian Williams Amination process for manufacturing amines using catalyst
EP3077444B1 (en) 2013-12-02 2018-04-25 Dow Global Technologies LLC Preparation of high molecular weight, branched, acyclic polyalkyleneamines and mixtures thereof
MX390660B (es) 2016-02-12 2025-03-21 Akzo Nobel Chemicals Int Bv Proceso para preparar etilenaminas superiores y derivados de etilenamina.
BR112018014270B1 (pt) 2016-02-12 2022-10-11 Akzo Nobel Chemicals International B.V. Processo de preparação de etilenoaminas
US10428011B2 (en) 2016-02-12 2019-10-01 Nouryon Chemicals International B.V. Process to prepare higher ethylene amines and ethylene amine derivatives
FI3455197T3 (fi) 2016-05-11 2024-01-29 Reg Synthetic Fuels Llc Biouusioituva kerosiini, lentopolttoaine, lentopolttoaineen sekoitusaine ja valmistusmenetelmä
US11091425B2 (en) * 2016-11-30 2021-08-17 Basf Se Process for the conversion of ethylene glycol to ethylenediamine employing a zeolite catalyst
WO2018108698A1 (de) 2016-12-15 2018-06-21 Basf Se Verfahren zur herstellung von ethanolaminen und/oder ethylenaminen
US11214535B2 (en) 2017-06-09 2022-01-04 Basf Se Method for producing ethyleneamines
WO2018224321A1 (de) 2017-06-09 2018-12-13 Basf Se Verfahren zur herstellung von ethylenaminen
US11208373B2 (en) 2017-06-09 2021-12-28 Basf Se Method for the production of ethyleneamines
US11214549B2 (en) 2017-07-10 2022-01-04 Nouryon Chemicals International B.V. Process for making higher ethylene amines
WO2019081284A1 (de) 2017-10-27 2019-05-02 Basf Se Abtrennung von n-methylethylendiamin aus eda-haltigen gemischen
CN111263746B (zh) 2017-10-27 2024-01-19 巴斯夫欧洲公司 制备亚乙基胺的方法
US11492324B2 (en) 2017-10-27 2022-11-08 Basf Se Method for the production of ethyleneamines
JP7268016B2 (ja) 2017-10-27 2023-05-02 ビーエーエスエフ ソシエタス・ヨーロピア エチレンアミンの製造方法
CN107913694A (zh) * 2017-10-31 2018-04-17 山东玉皇化工有限公司 一种胺化催化剂载体的调变方法及其应用
CN109734601B (zh) * 2019-01-25 2021-11-12 浙江师范大学 一种制备1,3-丙二胺的方法
JP7695194B2 (ja) 2019-03-06 2025-06-18 ビーエーエスエフ ソシエタス・ヨーロピア エチレンアミンを製造する方法
US12398090B2 (en) 2019-12-13 2025-08-26 Basf Se Separation of n-methylethylenediamine from EDA-containing mixtures
JP2025503342A (ja) 2022-01-14 2025-02-03 ビーエーエスエフ ソシエタス・ヨーロピア アルカノールアミンの製造又は変換方法
JP2025520810A (ja) 2022-06-29 2025-07-03 ビーエーエスエフ ソシエタス・ヨーロピア エチレンアミンの製造方法
EP4547644A1 (en) 2022-06-29 2025-05-07 Basf Se Method for manufacture of ethyleneamines
WO2025125094A1 (en) 2023-12-14 2025-06-19 Basf Se Process for preparing diethylenetriamine and/or ethylene glycol
CN118253311A (zh) * 2024-04-08 2024-06-28 卫星化学股份有限公司 一种用于乙二胺和哌嗪制备的催化剂及其制备方法和应用
WO2026022226A1 (en) 2024-07-23 2026-01-29 Basf Se Assistance in controlling a chemical reactor

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240782A (en) * 1966-03-15 Method of converting z-dehydro-isoeme tine into z-dehydro-emetine and inter- mediates therein
DE1034184B (de) * 1957-01-23 1958-07-17 Basf Ag Verfahren zur Herstellung von 1, 3-Propylendiamin
US3022349A (en) * 1957-12-30 1962-02-20 Union Carbide Corp Production of amines
NL248643A (enExample) * 1959-02-27
DE1172268B (de) * 1962-02-21 1964-06-18 Basf Ag Verfahren zur Herstellung von Diaminen
FR1360740A (fr) * 1963-02-12 1964-05-15 British Petroleum Co Perfectionnements relatifs à l'hydrogénation des paraffines
FR1368177A (fr) * 1963-06-07 1964-07-31 Comp Generale Electricite Procédé de préparation d'un catalyseur d'hydrogénation, catalyseur ainsi obtenu et applications
US3387032A (en) * 1965-06-08 1968-06-04 Jackson D. Leonard Process for the manufacture of methylamines
US3492314A (en) * 1965-08-23 1970-01-27 Mitsubishi Petrochemical Co Process for catalytic hydrogenation of dicarboxylic acid anhydride and catalyst therefor
US3520933A (en) * 1966-10-28 1970-07-21 Basf Ag Production of amines
US3666412A (en) * 1968-10-21 1972-05-30 Du Pont Dispersed phase activated and stabilized metal catalysts
US3708539A (en) * 1970-02-06 1973-01-02 Union Oil Co Condensation of ammonia or a primary or secondary amine with an alcohol
BE765482A (fr) * 1970-04-20 1971-08-30 Du Pont Catalyseur de reforming modifie au rhenium
JPS4734181U (enExample) * 1971-05-07 1972-12-16
US3739029A (en) * 1971-12-29 1973-06-12 Shell Oil Co N-alkyl amine production
FR2252330B1 (enExample) * 1973-11-23 1978-06-16 Ruhrchemie Ag
US4036883A (en) * 1974-11-27 1977-07-19 Basf Aktiengesellschaft Manufacture of isomer-free 3-methylbutylamine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163253A3 (en) * 1984-05-23 1986-12-30 Union Carbide Corporation Potentiated nickel catalysts for amination

Also Published As

Publication number Publication date
GB1569714A (en) 1980-06-18
JPS6241064B2 (enExample) 1987-09-01
IN145670B (enExample) 1978-11-25
NL180914C (nl) 1987-05-18
JPS5285991A (en) 1977-07-16
DE2700339A1 (de) 1977-08-18
JPS6038380B2 (ja) 1985-08-31
US4111840A (en) 1978-09-05
FR2337585B1 (enExample) 1983-10-07
DE2700339C3 (de) 1980-06-19
CA1083558A (en) 1980-08-12
JPS56108534A (en) 1981-08-28
FR2337585A1 (fr) 1977-08-05
IT1082703B (it) 1985-05-21
BE850144A (fr) 1977-07-06
US4123462A (en) 1978-10-31
NL7700084A (nl) 1977-07-11

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8327 Change in the person/name/address of the patent owner

Owner name: UNION CARBIDE CORP., 06817 DANBURY, CONN., US

8339 Ceased/non-payment of the annual fee
8328 Change in the person/name/address of the agent

Free format text: BARZ, P., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 80803 MUENCHEN