Patent application number | Description | Published |
20110143023 | GAS SENSOR USING POROUS NANO-FIBER CONTAINING METAL OXIDE AND MANUFATURING METHOD THEREOF - Disclosed is a method of manufacturing a gas sensor by using a nano-fiber including metal oxide. The method of manufacturing the gas sensor includes the steps of (1) mixing a polymer precursor with a solvent, (2) dispersing metal oxide into the mixture obtained through step (1), (3) preparing a nano-fiber by performing electro-spinning with respect to the mixture obtained through step (2), (4) oxidizing the nano-fiber obtained through step (3), (5) carbonizing the nano-fiber that has been oxidized through step (4), (6) activating the nano-fiber that has been carbonized through step (5), and (7) manufacturing the gas sensor by depositing the nano-fiber, which has been activated through step (6), between electrodes of a silicon wafer. The gas sensor is manufactured with superior sensitivity at a normal temperature and reliability. | 06-16-2011 |
20110303526 | DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY NORMAL BUTANOL, AND NORMAL BUTANOL DISTILLATION METHOD - The present invention relates to a dividing wall distillation column for producing high-purity n-butanol, and a method for the production of high-purity n-butanol by fractional distillation. More particularly, the present invention relates to a method which provides a dividing wall distillation column with crude n-butanol as a feed to perform a fractional distillation of n-butanol, and an apparatus thereof. The dividing wall distillation column of the present invention exhibits the effects of a two distillation column from only one distillation column, thereby reducing energy and the costs of installing the apparatus as compared to conventional distillation systems. | 12-15-2011 |
20110308930 | DIVIDING WALL DISTILLATION COLUMN - Provided is a dividing wall distillation column. The dividing wall distillation column includes a main column having a dividing wall. The main column includes a pressure equalization unit for pressure equalization between a preliminary divisional section and a main divisional section which are divided by the dividing wall. The dividing wall distillation column has an effect of enabling easier operations due to the uniform pressure drop between the two divisional sections divided by the dividing wall. | 12-22-2011 |
20120045574 | HIGH SENSITIVE GAS SENSOR USING CARBON MATERIALS CONTAINING IONIC METAL CATALYST AND MANUFACTURING METHOD THEREOF - Disclosed is a high sensitive gas sensor using a carbon material containing an ionized metal catalyst and a method of manufacturing the same. The method includes the steps of: (1) preparing a hydroxide solution by dissolving a hydroxide in a distilled water; (2) dissolving a metal catalyst in the hydroxide solution; (3) immersing the carbon material in a solution obtained through step (2) and stirring the carbon material; (4) heat-treating a mixture obtained through step (3); (5) cleaning the heat-treated carbon material obtained through step (4); (6) drying the carbon material cleaned through step (5); and (7) manufacturing the gas sensor by loading the carbon material obtained through step (6) on a substrate. The gas sensor having high sensitivity and responsiveness with respect to a target gas even in a normal temperature is obtained. | 02-23-2012 |
20130284586 | DIVIDING WALL COLUMN FOR PREPARING HIGH-PURITY 2 ETHYLHEXYL-ACRYLATE AND PREPARATION METHOD USING THE SAME - The present invention relates to a dividing wall column for preparing high-purity 2-ethylhexyl-acrylate, and a method for distilling 2-ethylhexyl-acrylate. The dividing wall column of the present invention provides an effect having two distillation columns through one distillation column, thereby having an effect of reducing energy compared to the conventional processing device in preparing high-purity 2-ethylhexyl-acrylate and an effect of reducing equipment costs of the device. | 10-31-2013 |
20130292243 | DIVIDING WALL COLUMN FOR PRODUCING HIGH-PURITY NEOPENTYL GLYCOL AND MANUFACTURING METHOD USING SAME - The present invention relates to a dividing wall column for preparing high-purity neopentyl glycol, and a method of distilling neopentyl glycol. Using only one column, the dividing wall column has the same effect as when using two columns. Thus, energy and equipment costs may be reduced in the production of the high-purity neopentyl glycol as compared to a conventional process apparatus. | 11-07-2013 |
20140076709 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140076710 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140076711 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140090971 | METHOD FOR MANUFACTURING ISOPROPYL ALCOHOL - The present application relates to a method of manufacturing isopropyl alcohol. Isopropyl alcohol with high purity is obtained from a feed including water and isopropyl alcohol. In addition, energy used in a process of obtaining the isopropyl alcohol, and investment cost for manufacturing facilities are reduced. | 04-03-2014 |
20140138237 | DUAL-MODE DIVIDING WALL COLUMN - The present invention relates to a dual-mode dividing wall column capable of mode switching between a dividing wall column operating mode and a conventional column operating mode, and a distillation method using the dual-mode dividing wall column, wherein when compared to the existing conventional column, the invention can reduce device costs and energy and improve productivity. Furthermore, since a mutual conversion between a dividing wall column operating mode and a conventional column operating mode is enabled without shutting down a process, an economic loss which can occur during shutdown caused by the malfunction of a device can be prevented. | 05-22-2014 |
20150041308 | DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY NORMAL BUTANOL, AND NORMAL BUTANOL DISTILLATION METHOD - The present invention relates to a dividing wall distillation column for producing high-purity n-butanol, and a method for the production of high-purity n-butanol by fractional distillation. More particularly, the present invention relates to a method which provides a dividing wall distillation column with crude n-butanol as a feed to perform a fractional distillation of n-butanol, and an apparatus thereof. The dividing wall distillation column of the present invention exhibits the effects of a two distillation column from only one distillation column, thereby reducing energy and the costs of installing the apparatus as compared to conventional distillation systems. | 02-12-2015 |
20150083578 | METHOD AND APPARATUS FOR PREPARING ISOPROPYL ALCOHOL - The present application relates to an apparatus for purifying isopropyl alcohol. The present application enables isopropyl alcohol to be obtained in a high purity from a feed comprising water and isopropyl alcohol with a minimum amount of energy consumption. | 03-26-2015 |