WO1999025671A1 - A catalytic process for methanol synthesis - Google Patents
A catalytic process for methanol synthesis Download PDFInfo
- Publication number
- WO1999025671A1 WO1999025671A1 PCT/US1998/019721 US9819721W WO9925671A1 WO 1999025671 A1 WO1999025671 A1 WO 1999025671A1 US 9819721 W US9819721 W US 9819721W WO 9925671 A1 WO9925671 A1 WO 9925671A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chloride
- catalytic process
- salt
- catalytic
- oxyhalide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/15—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination
- C07C17/158—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of halogenated hydrocarbons
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
- B01J27/122—Halides of copper
-
- 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
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/12—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of mineral acids
- C07C29/124—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of mineral acids of halides
-
- 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
Definitions
- the new catalyst used in the first step comprises an admixture of an iodine salt with copper chloride enhanced, as needed, by other metal chlorides selected from
- the new catalytic process has the advantage of substantially increasing the rate of the
- the process in the second step to the first step, the process can be operated continuously in a balanced
- copper chloride has been known to be an effective catalyst for
- This catalyst is generally enhanced by the addition of other metal chlorides
- Copper chloride also is an effective
- Zinc chloride is even more active.
- Another catalyst which may be used in the hydrolysis reaction is bismuth chloride.
- methyl chloride This compound, for example, is less reactive than either methylene chloride or ethyl chloride.
- Methyl chloride resists hydrolysis under the reaction conditions, namely, operating
- the invention in one preferred embodiment concerns a new catalyst composition for the conversion of methyl chloride, perchloroethylene, hydrogen chloride and oxygen to methyl alcohol and hexachloroethane.
- the new catalytic process uses copper chloride
- the iodine salt may be an alkali metal iodide
- iodine salt added to the catalytic process is in the range of 0 to 25 weight percent, the
- the new process uses one metal chloride or more in conjunction with the copper
- Such additional metal chlorides include potassium chloride, iron chloride, zinc
- bromine salt may be an alkali metal bromide, including sodium
- bromide potassium bromide, and cesium bromide.
- cupric oxyhalide is formed.
- an iodine salt being used as a co-catalyst
- cupric oxyhalide has the formula CuICI-CuO. If a bromine salt is substituted for the iodine
- cupric oxyhalide will be CuBr Cl-CuO.
- the oxyhalide determines the reaction kinetics.
- alkali metals may enhance the conversion of methyl chloride to methyl iodide as
- zinc if present in the catalyst composition may promote the
- cupric oxychloride for hydrogen iodide
- cuprous chloride reacts with oxygen to form cupric
- Equation 5 is analogous to this reaction.
- the physical attributes of the catalytic process are critical to its use. For example,
- cupric chloride and potassium chloride form an eutectic mixture which melts at 150°C.
- a bromide may be used instead of incorporating an iodide into the catalytic process.
- the reaction mechanism is similar to that shown for an iodide. Bromine, being intermediate between chlorine and iodine in activity, most likely will give results that are a compromise.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU94985/98A AU9498598A (en) | 1997-11-13 | 1998-09-21 | A catalytic process for methanol synthesis |
EP98948405A EP1037866A4 (en) | 1997-11-13 | 1998-09-21 | A catalytic process for methanol synthesis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/970,021 US5854168A (en) | 1997-11-13 | 1997-11-13 | Catalyst composition for methanol synthesis |
US08/970,021 | 1997-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999025671A1 true WO1999025671A1 (en) | 1999-05-27 |
Family
ID=25516318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/019721 WO1999025671A1 (en) | 1997-11-13 | 1998-09-21 | A catalytic process for methanol synthesis |
Country Status (4)
Country | Link |
---|---|
US (1) | US5854168A (en) |
EP (1) | EP1037866A4 (en) |
AU (1) | AU9498598A (en) |
WO (1) | WO1999025671A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69821947T2 (en) * | 1998-11-10 | 2004-08-12 | SÜD CHEMIE MT S.r.l. | Catalyst containing copper for the oxychlorination of ethylene in 1,2-dichloroethane |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172838A (en) * | 1978-08-21 | 1979-10-30 | E. I. Du Pont De Nemours And Company | Preparation of furan compounds |
US5185479A (en) * | 1992-04-21 | 1993-02-09 | Stauffer John E | Process for methyl alcohol |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5424827A (en) * | 1977-07-27 | 1979-02-24 | Ube Ind Ltd | Preparation of carbonate ester |
-
1997
- 1997-11-13 US US08/970,021 patent/US5854168A/en not_active Expired - Lifetime
-
1998
- 1998-09-21 WO PCT/US1998/019721 patent/WO1999025671A1/en not_active Application Discontinuation
- 1998-09-21 AU AU94985/98A patent/AU9498598A/en not_active Abandoned
- 1998-09-21 EP EP98948405A patent/EP1037866A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172838A (en) * | 1978-08-21 | 1979-10-30 | E. I. Du Pont De Nemours And Company | Preparation of furan compounds |
US5185479A (en) * | 1992-04-21 | 1993-02-09 | Stauffer John E | Process for methyl alcohol |
Non-Patent Citations (1)
Title |
---|
See also references of EP1037866A4 * |
Also Published As
Publication number | Publication date |
---|---|
AU9498598A (en) | 1999-06-07 |
EP1037866A4 (en) | 2004-03-03 |
EP1037866A1 (en) | 2000-09-27 |
US5854168A (en) | 1998-12-29 |
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