ZA828959B - Process for preparing alkyl esters of carboxylic acids from an acid and syngas using a novel catalyst compositions - Google Patents

Process for preparing alkyl esters of carboxylic acids from an acid and syngas using a novel catalyst compositions

Info

Publication number
ZA828959B
ZA828959B ZA828959A ZA828959A ZA828959B ZA 828959 B ZA828959 B ZA 828959B ZA 828959 A ZA828959 A ZA 828959A ZA 828959 A ZA828959 A ZA 828959A ZA 828959 B ZA828959 B ZA 828959B
Authority
ZA
South Africa
Prior art keywords
syngas
acid
carboxylic acids
alkyl esters
catalyst compositions
Prior art date
Application number
ZA828959A
Other languages
English (en)
Inventor
Jen Lin Jiang
John Frederick Knifton
Original Assignee
Texaco Development 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 Texaco Development Corp filed Critical Texaco Development Corp
Publication of ZA828959B publication Critical patent/ZA828959B/xx

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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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
    • B01J31/0255—Phosphorus containing compounds
    • B01J31/0267—Phosphines or phosphonium compounds, i.e. phosphorus bonded to at least one carbon atom, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, the other atoms bonded to phosphorus being either carbon or hydrogen
    • B01J31/0268—Phosphonium compounds, i.e. phosphine with an additional hydrogen or carbon atom bonded to phosphorous so as to result in a formal positive charge on phosphorous
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/20—Carbonyls
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1512—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by reaction conditions
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1512—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by reaction conditions
    • C07C29/1514—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by reaction conditions the solvents being characteristic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/153—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used
    • C07C29/156—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals or compounds thereof
    • C07C29/157—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing iron group metals, platinum group metals or compounds thereof containing platinum group metals or compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/02—Monohydroxylic acyclic alcohols
    • C07C31/04—Methanol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/02—Monohydroxylic acyclic alcohols
    • C07C31/08—Ethanol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/02—Monohydroxylic acyclic alcohols
    • C07C31/10—Monohydroxylic acyclic alcohols containing three carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/02—Monohydroxylic acyclic alcohols
    • C07C31/12—Monohydroxylic acyclic alcohols containing four carbon atoms
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
    • 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
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
    • B01J2531/0202—Polynuclearity
    • B01J2531/0208—Bimetallic complexes, i.e. comprising one or more units of two metals, with metal-metal bonds but no all-metal (M)n rings, e.g. Cr2(OAc)4
    • 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
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/70—Complexes comprising metals of Group VII (VIIB) as the central metal
    • B01J2531/72—Manganese
    • 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
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/70—Complexes comprising metals of Group VII (VIIB) as the central metal
    • B01J2531/74—Rhenium
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
ZA828959A 1981-10-29 1982-12-06 Process for preparing alkyl esters of carboxylic acids from an acid and syngas using a novel catalyst compositions ZA828959B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/316,194 US4362821A (en) 1981-10-29 1981-10-29 Process for preparing alkanols from synthesis gas
US06/316,195 US4366259A (en) 1981-10-29 1981-10-29 Production of acetic acid and propionic acid and their esters
US06/339,233 US4647691A (en) 1981-10-29 1982-01-13 Process for preparing ethyl and n-propyl esters of carboxylic acids from methanol, syngas and carboxylic acid using a new catalyst system

Publications (1)

Publication Number Publication Date
ZA828959B true ZA828959B (en) 1984-04-25

Family

ID=36764662

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA828959A ZA828959B (en) 1981-10-29 1982-12-06 Process for preparing alkyl esters of carboxylic acids from an acid and syngas using a novel catalyst compositions

Country Status (6)

Country Link
US (3) US4362821A (es)
EP (2) EP0108848A1 (es)
JP (2) JPS59101434A (es)
AU (2) AU557947B2 (es)
CA (2) CA1179378A (es)
ZA (1) ZA828959B (es)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569948A (en) * 1981-10-15 1986-02-11 Agency Of Industrial Science And Technology Preparation process of acetic acid
US4396726A (en) * 1982-01-13 1983-08-02 Texaco Inc. Process for preparing ethylene glycol and lower monohydric alcohols from syn gas using a novel catalyst system
DE3201665A1 (de) * 1982-01-21 1983-09-08 Ruhrchemie Ag, 4200 Oberhausen Verfahren zur herstellung von ethanol und n-propanol aus methanol und synthesegas
EP0098031B1 (en) * 1982-04-15 1986-09-24 Imperial Chemical Industries Plc Catalytic process for the production of ethanol
US4436837A (en) 1982-09-29 1984-03-13 Texaco Inc. Preparation of alkanols from synthesis gas
US4436838A (en) 1982-09-29 1984-03-13 Texaco Inc. Process for preparing alkanols and esters from synthesis gas
AU566529B2 (en) * 1983-03-18 1987-10-22 Dow Chemical Company, The Mixed alcohols from hydrogen and carbon monoxide
US4558072A (en) * 1983-11-16 1985-12-10 Texaco Inc. Process for preparing ethylene glycol and lower monohydric alcohols from syngas using a novel catalyst system
US4525481A (en) * 1984-02-27 1985-06-25 Texaco Inc. Acetaldehyde production from synthesis gas
US4584322A (en) * 1984-04-09 1986-04-22 National Distillers And Chemical Corporation Process for the production of acetic acid from synthesis gas
JPS61143333A (ja) * 1984-12-17 1986-07-01 Agency Of Ind Science & Technol 合成ガスからｃ↓２含酸素化合物を製造する方法
US4762858A (en) * 1985-09-16 1988-08-09 The Dow Chemical Company Syngas conversion to oxygenates by reduced yttrium/lanthanide/actinide-modified catalyst
GB8730280D0 (en) * 1987-12-30 1988-02-03 Shell Int Research Process for production of methanol
US4981973A (en) * 1988-06-30 1991-01-01 Union Carbide Chemicals And Plastics Company, Inc. Transvinylation reaction
US5155253A (en) * 1988-06-30 1992-10-13 Union Carbide Chemicals & Plastics Technology Corporation Transvinylation process for the preparation of thermally labile vinyl compounds and for vinyl compounds prepared from thermally labile acids
US4935547A (en) * 1988-08-19 1990-06-19 Union Carbide Chemicals And Plastics Company Inc. Homologation process making higher alcohols
AT392760B (de) * 1989-05-26 1991-06-10 Plansee Metallwerk Verbundkoerper aus graphit und hochschmelzendem metall
US5210207A (en) * 1991-01-31 1993-05-11 Union Carbide Chemicals & Plastics Technology Corporation Transvinylation process by reactive distillation
PL182675B1 (pl) * 1996-03-20 2002-02-28 Politechnika Slaska Im Wincent Sposób katalitycznego utleniania węglowodorów izoalkiloaromatycznych
CN1315771C (zh) * 2002-05-06 2007-05-16 伊斯曼化学公司 连续羰基化工艺
FR2839972B1 (fr) * 2002-05-23 2005-08-19 Inst Francais Du Petrole Procede de carbonylation des alcools utilisant un catalyseur a base de rhodium ou d'iridium dans un liquide ionique non-aqueux,avec un recyclage efficace du catalyseur
JP5193028B2 (ja) * 2005-05-20 2013-05-08 ワッカー・ケミー アー・ゲー 担持イオン性液体相触媒作用による連続カルボニル化のためのプロセス
US7737298B2 (en) * 2006-06-09 2010-06-15 Eastman Chemical Company Production of acetic acid and mixtures of acetic acid and acetic anhydride
US7582792B2 (en) * 2006-06-15 2009-09-01 Eastman Chemical Company Carbonylation process
US7253304B1 (en) 2006-06-20 2007-08-07 Eastman Chemical Company Carbonylation process
US7629491B2 (en) * 2006-06-26 2009-12-08 Eastman Chemical Company Hydrocarboxylation process
US20080194398A1 (en) * 2007-02-14 2008-08-14 Eastman Chemical Company Ruthenium-copper chromite hydrogenation catalysts
CN101889037B (zh) * 2007-12-07 2013-02-13 三菱瓦斯化学株式会社 改性萘甲醛树脂及含三环癸烷骨架的萘酚化合物以及酯化合物
US20090247783A1 (en) * 2008-04-01 2009-10-01 Eastman Chemical Company Carbonylation process
JP2013514175A (ja) * 2009-12-16 2013-04-25 ライオンデル ケミカル テクノロジー、 エル．ピー． パラジウム−金触媒の調製
US9668714B2 (en) 2010-04-14 2017-06-06 Maui Imaging, Inc. Systems and methods for improving ultrasound image quality by applying weighting factors
US9012683B2 (en) 2010-11-12 2015-04-21 Eastman Chemical Company Coproduction of acetic acid and acetic anhydride
US8912240B2 (en) 2013-02-22 2014-12-16 Eastman Chemical Company Production of methanol and ethanol from CO or CO2
US9387469B2 (en) 2013-12-30 2016-07-12 Eastman Chemical Company Carbonylation catalyst and process using same

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636046A (en) * 1948-10-16 1953-04-21 Du Pont Preparation of polyfunctional compounds
US4088671A (en) * 1976-03-19 1978-05-09 Gulf Research & Development Company Conversion of synthesis gas using a cobalt-ruthenium catalyst
NL7708158A (nl) * 1976-07-28 1978-01-31 Montedison Spa Werkwijze ter bereiding van esters.
US4101450A (en) * 1977-05-09 1978-07-18 Celanese Corporation Catalyst for production of acetic acid
US4133966A (en) * 1977-12-23 1979-01-09 Gulf Research & Development Company Selective formation of ethanol from methanol, hydrogen and carbon monoxide
EP0003876B1 (en) * 1978-02-17 1981-09-23 The British Petroleum Company p.l.c. Process for the hydrocarbonylation of methanol to ethanol in the presence of added oxygen-containing organic compounds
US4170605A (en) * 1978-04-06 1979-10-09 Gulf Research And Development Company Synthesis of ethylene glycol from carbon monoxide and hydrogen using a ruthenium complex catalyst and a pyridine base ligand
JPS5538369A (en) * 1978-09-01 1980-03-17 Texaco Development Corp Manufacture of carboxylic acids and their esters
CA1156209A (en) * 1978-12-21 1983-11-01 Bernard D. Dombek Process for producing alcohols
US4265828A (en) * 1979-12-31 1981-05-05 Texaco Development Corp. Manufacture of ethylene glycol from synthesis gas
ZA811979B (en) * 1980-03-31 1982-04-28 Union Carbide Corp Process for producing methanol from synthesis gas
FR2488248A1 (fr) * 1980-08-07 1982-02-12 Rhone Poulenc Ind Procede d'hydrocarbonylation et/ou de carbonylation de carboxylates d'alkyles
US4301253A (en) * 1980-09-25 1981-11-17 Union Carbide Corporation Process for the selective production of ethanol and methanol directly from synthesis gas
US4315993A (en) * 1980-12-22 1982-02-16 Texaco Inc. Preparation of ethylene glycol
CA1172262A (en) * 1980-12-24 1984-08-07 Barbara K. Warren Process for the production of ethylene glycol
US4315994A (en) * 1980-12-29 1982-02-16 Texaco Inc. Preparation of glycols and ethers
US4371724A (en) * 1981-01-08 1983-02-01 Texaco Inc. Ethanol synthesis by homologation of methanol
US4374285A (en) * 1981-01-08 1983-02-15 Texaco Inc. Synthesis of ethanol by homologation of methanol
US4332914A (en) * 1981-06-26 1982-06-01 Texaco Inc. Manufacture of alkanols from synthesis gas
US4414410A (en) * 1982-01-13 1983-11-08 Texaco Inc. Process for preparing alkyl esters by homologation of the next lower alkyl ester

Also Published As

Publication number Publication date
CA1179378A (en) 1984-12-11
AU9070082A (en) 1984-05-24
US4366259A (en) 1982-12-28
JPS59101430A (ja) 1984-06-12
CA1192219A (en) 1985-08-20
AU9069982A (en) 1984-05-24
EP0108847A1 (en) 1984-05-23
AU558378B2 (en) 1987-01-29
JPS6220171B2 (es) 1987-05-06
US4647691A (en) 1987-03-03
AU557947B2 (en) 1987-01-15
US4362821A (en) 1982-12-07
EP0108848A1 (en) 1984-05-23
JPS59101434A (ja) 1984-06-12
EP0108847B1 (en) 1986-06-18

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