Patent application number | Description | Published |
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 |
20120004473 | DIVIDING WALL DISTILLATION COLUMNS FOR PRODUCTION OF HIGH-PURITY 2-ETHYLHEXANOL AND FRACTIONATION METHOD USING SAME - There are provided a dividing wall distillation column for producing high-purity 2-ethyl hexanol, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Also, a crude 2-ethyl hexanol raw material (F) flows in a middle inflow plate NR | 01-05-2012 |
20120006673 | DIVIDING WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY ACRYLIC ACID AND FRACTIONAL DISTILLATION METHOD USING THE SAME - There are provided a dividing wall distillation column for producing high-purity acrylic acid, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Also, a crude acrylic acid raw material (F) flows in a middle inflow plate NR | 01-12-2012 |
20120145530 | METHOD AND APPARATUS FOR PURIFICATION OF TRICHLOROSILANE - There is provided a method for a purification of trichlorosilane, the method including: performing a pretreatment for separating a chlorosilane mixture from reaction products of a trichlorosilane production reaction; performing a first purification for separating the chlorosilane mixture into a first top stream and a first bottom stream; performing a second purification for separating the first top stream into a second top stream and a second bottom stream; and performing a third purification for separating the second bottom stream into a third top stream and a third bottom stream, wherein the performing of the third purification is carried out under pressure conditions higher than those of the performing of the second purification, and a heat exchange is generated between the second bottom stream and the third top stream. | 06-14-2012 |
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 |
20130334029 | DIVIDING WALL DISTILLATION COLUMNS FOR PRODUCTION OF HIGH-PURITY 2-ETHYLHEXANOL AND FRACTIONATION METHOD USING SAME - A dividing wall distillation column for producing high-purity 2-ethyl hexanol including a condenser, a reboiler and a main column having a dividing wall. The main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. A crude 2-ethyl hexanol raw material (F) flows in a middle inflow plate NR | 12-19-2013 |
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 |
20140371488 | DIVIDED WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY ACRYLIC ACID AND FRACTIONAL DISTILLATION METHOD USING THE SAME - There are provided a dividing wall distillation column for producing high-purity acrylic acid, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Also, a crude acrylic acid raw material (F) flows in a middle inflow plate NR | 12-18-2014 |
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 |