| Title of Invention | A LOW WATER METHANOL CARBONYLATION PROCESS FOR HIGH ACETIC ACID PRODUCTION AND FOR WATER BALANCE CONTROL |
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| Abstract | The invention relates to a process for the production of acetic acid by carbonylation of methanol, and reactive derivatives thereof, in a reaction mixture using a rhodium-based catalyst in low water conditions. The process is used to achieve reaction rates of at least 15 g mol/l/hr. The high rate reactions proceed at water concentrations of less than 2.0 wt. %. Under certain conditions, the water concentration in the reaction mixture of the process is maintained at a desired concentration by at least one process step including adding a compound such as methyl acetate, dimethyl ether, acetic anhydride, or mixtures of these compounds to the reaction system. The process step of adding the components to the reaction mixture may be combined with other process steps for controlling water concentrations in reaction mixtures for the carbonylation of methanol. |
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01425-kolnp-2005-description complete.pdf
1425-kolnp-2005-granted-abstract.pdf
1425-kolnp-2005-granted-assignment.pdf
1425-kolnp-2005-granted-claims.pdf
1425-kolnp-2005-granted-correspondence.pdf
1425-kolnp-2005-granted-description (complete).pdf
1425-kolnp-2005-granted-drawings.pdf
1425-kolnp-2005-granted-examination report.pdf
1425-kolnp-2005-granted-form 1.pdf
1425-kolnp-2005-granted-form 18.pdf
1425-kolnp-2005-granted-form 2.pdf
1425-kolnp-2005-granted-form 26.pdf
1425-kolnp-2005-granted-form 3.pdf
1425-kolnp-2005-granted-form 5.pdf
1425-kolnp-2005-granted-letter patent.pdf
1425-kolnp-2005-granted-reply to examination report.pdf
1425-kolnp-2005-granted-specification.pdf
| Patent Number | 220482 | ||||||||||||
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| Indian Patent Application Number | 01425/KOLNP/2005 | ||||||||||||
| PG Journal Number | 22/2008 | ||||||||||||
| Publication Date | 30-May-2008 | ||||||||||||
| Grant Date | 28-May-2008 | ||||||||||||
| Date of Filing | 22-Jul-2005 | ||||||||||||
| Name of Patentee | CELANESE INTERNATIONAL CORPORATION | ||||||||||||
| Applicant Address | 1601 WEST LBJ FREEWAY DALLS, TX | ||||||||||||
Inventors:
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| PCT International Classification Number | C07C 51/12 | ||||||||||||
| PCT International Application Number | PCT/US2003/037020 | ||||||||||||
| PCT International Filing date | 2003-11-18 | ||||||||||||
PCT Conventions:
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