Patent application number | Description | Published |
20090172946 | SUSPENSION COIL SPRING - A suspension coil spring, when assembled to a suspension device, in which a spring reaction axis is positioned coincident with or sufficiently close to a load input axis, and the design and manufacture of coil springs are facilitated. Namely, A suspension coil spring ( | 07-09-2009 |
20130116470 | PROCESS FOR PRODUCING ACETIC ACID - A production process of acetic acid comprises a reaction step for continuously allowing at least one member selected from the group consisting of methanol, dimethyl ether, and methyl acetate to react with carbon monoxide in a catalyst system comprising a rhodium catalyst, an iodide salt, and methyl iodide in the presence of acetic acid and water in a plant compromising a reactor | 05-09-2013 |
20130261334 | PROCESS FOR PRODUCING ACETIC ACID - A process for producing acetic acid by: a reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, an ionic iodide, and methyl iodide in a carbonylation reactor, a flash distillation step for continuously feeding a flasher with a reaction mixture from the reactor and evaporating a volatile component at least containing product acetic acid, methyl acetate, and methyl iodide by flash distillation to separate the volatile component and a liquid catalyst mixture at least containing the metal catalyst and the ionic iodide, and an acetic acid collection step for separating a stream containing acetic acid from the volatile component to collect acetic acid; wherein, in the flash distillation step, the flash distillation is conducted under the condition that the concentration of methyl acetate in the liquid catalyst mixture is not less than 0.6% by weight. | 10-03-2013 |
20130281735 | PROCESS FOR PRODUCING ACETIC ACID - Acetic acid is produced while inhibiting increased concentrations of hydrogen iodide and acetic acid in an acetaldehyde distillation column. | 10-24-2013 |
20130303800 | PROCESS FOR PRODUCING ACETIC ACID - A process for stably producing high-purity acetic acid while efficiently removing acetaldehyde is provided. | 11-14-2013 |
20130310603 | PROCESS FOR PRODUCING ACETIC ACID - Acetic acid is produced while inhibiting an increased concentration or production of hydrogen iodide in a carbonylation reactor or corrosion of the carbonylation reactor. | 11-21-2013 |
20150025270 | PROCESS FOR PRODUCING ACETIC ACID - A production process of acetic acid according to the present invention inhibits concentration of hydrogen iodide and improves a liquid-liquid separation of an overhead from a distillation column. Acetic acid is produced by distilling a mixture containing hydrogen iodide, water, acetic acid and methyl acetate in a first distillation column ( | 01-22-2015 |
20150299084 | PROCESS FOR PRODUCING ACETIC ACID - A process for removing acetaldehyde efficiently and producing high-purity acetic acid stably is provided. Methanol is allowed to continuously react with carbon monoxide in a carbonylation reactor | 10-22-2015 |