baber/WOPTO huggingface dataset:
Patent KR-20070063616-A (KR)
Title: Mobilestation of control function used cell-id in mobile communication network
Inventor: KIM SHIN JAE
IPC: H04B7/26
Filed: 2005-12-15
Abstract: A terminal for controlling functions using a cell ID in a mobile communication network and a method thereof are provided to control the functions of a terminal without a special device by broadcasting information messages containing terminal control signals and to easily and definitely catch the location of a terminal, which receives the system information broadcasted from a node B, by fractionizing a cell ID parameter, information to identify the cell of the node B. A multi-mode terminal, which can be operated in a plurality of mobile communication network system environments including a WCDMA network system, comprises a receiving part(41), a storage part(46), a signal detection part(43), and a function control part(44). The receiving part(41) receives a system information and control message containing a terminal function control signal in a WCDMA network environment. The storage part(46) stores terminal function control information, including information to control the multi-mode on/off function of the multi-mode terminal. The signal detection part(43) obtains a cell ID from the received system information and control message, extracts the terminal function control signal contained in the obtained cell ID, and searches the storage part(46) for the control information corresponding to the extracted control signal. The function control part(44) controls a function of the multi-mode terminal according to the searched control information.
Patent KR-20070065490-A (KR)
Title: Container localization system using rfid tags to be capable of duplex communication
Inventor: BAEK YUN JU
IPC: G06Q10/08
Filed: 2005-12-20
Abstract: A system and a method for locating a container with an RFID tag having a bidirectional communication function are provided to make a location map of the containers by attaching the RFID tag to each container, placing a pair of reader to both ground ends of the stacked containers, and checking a location of each container through hop calculation with each reader. The first reader and the second reader(100,200) are installed to the ground by being separated from two outmost bottom containers(11,12) among the stacked containers(10), and respectively include a unique ID. The RFID tag(300) is attached to one side of each container, and has location information comprising a unique ID code by each container, coordinates, and the unique ID code of the neighboring containers, and communicates with the RFID tag of other contents and the first/second reader within coverage. The coordinates comprises the number of hops accumulated from the first and the number of hops accumulated from the second reader. A management server(400) collects and processes the location information of the stacked containers by communicating with the first/second reader.
Patent KR-20070066176-A (KR)
Title: The intake part for 2 layer type air conditioner
Inventor: LEE SANG YUL
IPC: B60H1/12
Filed: 2005-12-21
Abstract: An intake part of a 2-layer type air conditioner is provided to form an inside air inlet and a door for opening or closing the same in a dual structure to prevent the door from skimming a barrier wall, thereby reducing noise and preventing mixing of inside and outside air. An intake part of a 2-layer type air conditioner includes an upper case(10) positioned at an upper part of a blower case(20) and formed with inside air inlets(12,13) at both lower sides and an outside air inlet(11) at an upper side. Inside/outside air conversion doors are mounted to the upper case for opening or closing the inside air inlets. A barrier wall(16) is protruded from a side of a bellmouth part(21) of the blower case upward for defining upward and downward air paths with respect to a blower fan(22). The inside/outside air conversion doors are two flat doors(14,15) contacting the barrier wall for blocking introduction of the outside air in an inside air mode.
Patent KR-20070067427-A (KR)
Title: Method and apparatus for managing digital content
Inventor: KIM MYUNG SUN
IPC: G06F15/00
Filed: 2005-12-23
Abstract: A method and a device for managing digital contents are provided to prevent the digital contents from continuously leaking out owing to the same encryption key by automatically receiving a report for a leaked or cracked encryption key, and promptly changing the corresponding encryption key. An encryptor(420) encrypts the digital contents to enable the digital contents to be decrypted by a domain key shared among domain members. A module generator(430) generates a module for determining whether the encrypted digital contents are decrypted by other devices not included in the domain members and informing a domain of a determination result. A linker(470) links the encrypted digital contents with the module to automatically operate the module if the encrypted digital contents are decrypted.
Patent KR-20060073527-A (KR)
Inventor: KURUMISAWA TAKASHI
IPC: H04N9/64
Filed: 2005-12-23
Abstract: 본 발명은, 화상 데이터의 화상 처리를 행하는 화상 처리 장치에 있어서, 화상 데이터를 저해상도로 샘플링한 경우에도, 통계값의 정확도를 유지하여, 화상 처리를 위한 적절한 보정량을 산출하는 것으로, 예컨대, 휴대기기, 표시 장치, 컬러 프린터 등에 탑재되고, 외부로부터 취득한 화상 데이터에 대하여, 당해 화상 데이터의 통계값에 근거하여, 화상 처리를 실시한다.  화상 처리 장치는 화상 데이터를 저해상도로 샘플링하고, 샘플링된 화상 데이터를 개략 양자화(rough quantization)하여, 보간에 의해 히스토그램을 생성함으로써, 양자화량을 되돌린다. 이 생성된 히스토그램의 통계 정보로부터 산출된 통계값을 근거로 보정량을 결정하고, 화상 데이터에 화상 처리를 행한다.  이에 따라, 저해상도로 화상 데이터의 샘플링을 행한 경우더라도, 통계값의 정확도를 유지하여, 적절한 보정량을 도출할 수 있다.
Patent KR-20070068773-A (KR)
Title: Liquid crystal display
Inventor: YUN SANG CHANG
IPC: G02F1/133
Filed: 2005-12-27
Abstract: An LCD(Liquid Crystal Display) is provided to reduce power consumption and prevent flickering from occurring in a specific data pattern. An LCD includes a data driver(16), an LCD panel(12), and a common voltage generator(20). The data driver converts digital video data into a data voltage and provides the data voltage to data lines. The LCD panel includes a plurality of gate lines, a plurality of data lines intersecting the gate lines, and a plurality of liquid crystal cells arranged in a matrix form. The LCD panel further includes at least two first thin film transistors continuously arranged in a horizontal direction and at least two second thin film transistors continuously arranged in the horizontal direction. The first thin film transistors provide the data line to the liquid crystal cells in response to a scan signal from an (n-1)-th gate line in the same horizontal scan line. The second thin film transistors provide the data voltage to the liquid crystal cells in response to a scan signal from an nth gate line in the same horizontal scan line. The common voltage generator provides an AC common voltage having polarity for the data voltage, which is inverted for each horizontal period, to common electrodes of the liquid crystal cells.
Patent KR-20070068805-A (KR)
Title: Liquid crystal display device of horizontal electronic field applying type and fabricating method thereof
Inventor: PARK SEUNG HO
IPC: G02F1/1335
Filed: 2005-12-27
Abstract: An in-plane switching mode LCD(Liquid Crystal Display) and a method for manufacturing the LCD are provided to prevent light leakage by forming a compensation layer through a reactive mesogen material, thereby improving a viewing angle. An in-plane switching mode LCD includes a color filter substrate(180) and a TFT(Thin Film Transistor) substrate(170). The color filter substrate is constructed in a manner that a color filter array is formed on a first substrate(134). The TFT substrate is formed in such a manner that a TFT array is formed on a second substrate(133) which is boned to the first substrate having liquid crystal cells interposed between the first and second substrates. The color filter substrate includes an optical compensation layer(140) which is formed of reactive mesogen and divided into regions having different thicknesses.
Patent KR-20070070418-A (KR)
Title: Surface damage prevention structure of cathode for wafer etching
Inventor: LEE DOO RO
IPC: H01L21/3065
Filed: 2005-12-29
Abstract: An electrode for etching a wafer is provided to prevent an adhesive from being burnt due to a gas and to prevent a support ring from being damaged by forming a coating layer on a surface of the support ring of the electrode, thereby preventing wafer defects. A surface erosion prevention structure of an electrode for etching a wafer includes an electrode distribution plate(102) on which plural distribution holes(103) are formed, induction holes(104) formed corresponding to the distribution holes, a support plate(101) on which an interposing part for a support bolt(110) is formed, and a bush(111) inserted into the interposing part to prevent a damage of the support plate. A coating layer(150) is formed on the support plate to prevent a surface of the support plate from being damaged.
Patent KR-20060015437-A (KR)
Inventor: KWON SEOK KUEN
IPC: B09B5/00
Filed: 2005-12-30
Abstract: 본 발명은 폐 오일필터나 윤활유 빈용기(철캔)를 스크랩상태로 파쇄하는 단계와, 파쇄한 폐 오일필터 및 윤활유 빈용기(철캔)를 스크랩과 여과지 및 라벨을 분리하는 단계와, 스크랩을 세척하는 단계와, 여과지 및 라벨에 함유한 유분을 분리하는 유분 분리 단계 및 파쇄와 세척시 발생하는 가스를 포집장치에 포집하여 폐 오일을 회수하는 포집 액화 단계를 포함하는 처리장치를 개선한 폐 오일용기의 처리시스템에 관한 것이다. 
     이에 따른 본 발명은, 파쇄기, 유분분리장치, 스크랩 세척장치를 포함하는 폐 오일용기 처리시스템에 있어서, 
     파쇄기에 있어,  
     회전동력수단의 구동력을 전달받아 회전하는 회전축과 상기 축 상에 고정 설치되는 파쇄수단 및 최하부의 스크린수단을 갖는 베이스부와, 상기 베이스부의 상부에 고정 설치되고 파쇄수단에 의해 폐 오일용기를 스크랩상태로 파쇄하기 위한 작업공간을 제공하며 케이스의 내벽에 일정두께의 고무판과 1차 파쇄된 폐 오일용기의 스크랩을 재차 파쇄하는 톱니형의 2차 파쇄커터가 설치되며 케이스 상단측에 수직방향으로 입설되어 스크랩의 역배출을 방지하는 1차 역배출 차단판을 갖는 파쇄부와, 상기 파쇄부의 상부에 고정 설치되고 투입되는 폐 오일용기의 투입 안내흐름을 제공하고 케이스의 내벽에 폐 오일용기의 투입흐름이 방해되지 않는 반면 1차 역배출 차단판으로 제지 못한 폐 오일용기의 스크랩을 차단하는 2차 역배출 차단판  및 상기 투입부의 케이스 입구에 역배출 차단판으로 제지 못한 스크랩을 재차 차단하는 쇠사슬 커튼을 갖는 투입부가 3분할상태로 조합 구성되고; 
     상기 파쇄수단은, 회전축의 중앙부에 간격 스페이서에 의해 일정 등간격이 유지되는 상태로 다수의 회전원판이 키이 결합되고, 상기 각 회전원판의 사이 공간에 그 회전원판으로 관통되어 끼워지는 지지봉에 격간되게 타격 해머가 습동 결합되며, 상기 지지봉과 타격 해머 사이에 부싱이 개재되며, 회전원판의 첫 단 및 끝단과 각각 마주하여 축 결합되어 다수 구비된 회전원판으로 밀착력을 제공하되 위치각도에 따라 회전원판에 끼움 결합된 지지봉의 결합과 분리가 선택적으로 가능하도록 지지봉의 설치위치와 대향하는 관통구멍이 형성된 밀착 고정원판을 포함하며; 
     유분분리장치에 있어,  
     스크류 축의 스크류 날개의 간격을 투입구로부터 배출구로 갈수록 점차 좁혀지도록 형성하고, 상기 스크류 축의 축경이 여과지 이송관의 협경부로 갈수록 점차 커지도록 형성하되, 상기 스크류 축에 방사형의 세경관을 형성하고, 축심에 상기 세경관을 통합하는 통합유로를 축 끝단부까지 이어지도록 형성하며, 상기 통합유로를 통해 배유되는 폐 오일은 별도의 배유관을 거쳐 집유되도록 하며, 상기 여과지 이송관의 통공은 일렬로 촘촘하게 배열된 간격을 갖되 여과지 이송관의 내면보다 더 깊은 위상차를 갖는 공극 유도홈을 형성하여, 그 홈 내부에 상기 통공을 형성하며, 상기 스크류 축의 끝단을 여과지 이송관의 배출구 외측으로 돌출되도록 형성하며, 상기 여과지 이송관은 집유통에 조립 가능하게 설치되며, 협경부 부분은 여과지 이송관과 별도로 조립되는 구조로 이루어지며; 
     스크랩 세척장치에 있어,  
     폐 오일용기의 파쇄공정에서 파쇄된 스크랩을 일정 흐름을 통해 안내되는 공급슈트와; 
     하부에 상기 스크랩의 세척을 위해 유분 세척제 및 세척수(물)를 저장하기 위한 격리된 2개의 챔버를 갖고 각 챔버와 회전 세척드럼 사이에 상기 회전 세척드럼의 통공을 통과하는 미세 스크랩 찌꺼기를 걸러내는 1차 스크린 및 유분 세척제 챔버의 내부에 1차 스크린을 통과한 극세 스크랩 찌꺼기를 재차 걸러내는 2차 스크린이 구비 설치되며, 회전 세척드럼과 1차 스크린 사이에 임의 경사각을 갖는 에어차단판이 설치된 세척기 본체와; 
     상기 세척기 본체 내부에, 로울러에 의해 회전상태가 유지되는 한편, 감속모터(M)의 구동력을 체인(C), 스프로킷(S) 간 연결에 의해 전달받도록 구성되고, 일단이 공급슈트와 근접되게 설치되고 타단이 개방상태인 원통형 표면 전면에 무수한 통공이 형성되며, 그 내부에 공급슈트에서 투입되는 스크랩이 투입 반대쪽으로 이동되도록 스크류형 리브가 돌출된 회전 세척드럼과; 
     상기 유분 세척제 챔버로부터의 유분 세척제를 펌핑하여 공급슈트를 지나는 스크랩에 분사되고, 그 세척제는 세척제 순환파이프에 의해 다시 챔버로 포집되는 유분 세척제 순환라인부; 및 
     펌핑력에 의한 상기 세척수 챔버로부터의 세척수가 1차 세척된 스크랩을 재차 세척하기 위해, 회전 세척드럼의 개방단을 통해 내부 깊숙히 침투되어 분사작용을 하는 세척수 순환파이프와, 분사되는 유분 세척제와 세척수가 섞이지 않도록 함 과 동시에 폐 오일 및 세척수단(유분 세척제, 세척수)들이 외부로 비산되지 않도록 회전 세척드럼의 경계구간에 분사되는 에어 파이프를 포함하는 세척수 순환라인부로 구성되며; 
     상기 파쇄기의 투입부 내측 상부에 고정 설치되고 파쇄과정에서 발생되는 폐 오일의 비산유를 빨아들이기 위해 흡인노즐이 무수히 형성된 흡인관체와, 상기 흡인관체로부터 연장 연결되는 흡인 파이프와, 상기 흡인 파이프 상에 설치되어 전동력에 의해 흡인력을 제공하는 흡인 팬과, 상기 흡인 파이프의 타측단에 연결되고, 흡인력에 의해 강제 배기되는 비산유를 포집하는 폐 오일 포집탱크와, 상기 폐 오일 포집탱크의 일측에 연통구조를 갖도록 설치되어 포집된 비산유를 걸러낸 공기를 외기로 방출하는 연통구를 갖는 폐 오일 포집장치를 더 포함하여 이루어진 것이다. 
       
     폐 오일용기, 처리시스템, 파쇄기, 스크랩, 유분분리, 세척기, 포집장치
Patent KR-20070072132-A (KR)
Title: Autostereoscopic 3d display device
Inventor: KANG HOON
IPC: G02F1/133
Filed: 2005-12-30
Abstract: A stereoscopic image display device is provided to improve a stereoscopic image of high brightness by totally reflecting light transmitted to a non-transmissive slit part toward a transmissive slit part. A display panel displays an image. A switching panel(120) includes a polymer part(127) and a liquid crystal part(125), and selectively implements a stereoscopic image and a plane image. A backlight unit(150) supplies light to the switching panel. The switching panel includes a first transparent substrate(121) and a second transparent substrate(123), a first electrode(122) and a second electrode(124) formed on opposite surfaces of the first and second transparent substrates, and a switching part(129) in which a polymer part and a liquid crystal part are alternatively formed between the first electrode and the second electrode.
Patent KR-20050019895-A (KR)
IPC: B66B1/50
Filed: 2002-07-18
Abstract: 기계실 없는 엘리베이터(28)를 위한 루프탑 유닛은 기계 부품(46)을 덮는 선택적으로 제거가능한 커버(38)를 포함한다.  일례로, 제거가능한 커버는 전체 커버를 제거하지 않고도 루프탑에 대해 이동가능하다.
Patent KR-20050026017-A (KR)
Title: Method and apparatus for mobile based access point(apn) selection
Inventor: SHAHEEN KAMEL M
IPC: H04L12/56
Filed: 2003-07-25
Abstract: A procedure is provided wherein a serving general packet radio service (GPRS) support node (14) enables a mobile station to access point name (APN) to which the mobile is not subscribed wherein the SGSN (14) makes a determination if the requested packet data protocol and APN received from the mobile station are the same as those to which the mobile station (10) is subscribed. In the event that the mobile station is not subscribed to the PDP type and requested APN, the SGSN informs the mobile that APN requested is not authorized and if the mobile station desires to continue it must agree to the terms and conditions and to provide credit card information in order to obtain the requested APN.
Patent KR-20050057147-A (KR)
Title: Gas phase polymerization process
Inventor: EHRMAN FRED D
IPC: C08F10/00
Filed: 2003-08-12
Abstract: A gas phase polymerization process for producing a polyolefin composition is described, which includes passing a gaseous stream containing hydrogen gas and one or more monomers, including ethylene monomers, through a reactor that includes a fluidized bed, under reactive conditions, in the presence of a catalyst that includes metallocene, to provide a polyolefin composition, wherein in one embodiment the fluidized bulk density is 60% or more of the settled bulk density (or, a voidage of 40% or less); and wherein the voidage is controlled by a number of factors including, in certain embodiments, (a) the reactor temperature being maintained at 100 °C or below; (b) the molar ratio of hydrogen gas to ethylene introduced into the reactor being 0.015 or below.
Patent KR-20050053674-A (KR)
Title: Estate group purchasing matching system
Inventor: HORIMOTO KIYOTO
IPC: G06F17/30
Filed: 2003-09-19
Abstract: In a network where a person who wants to sell an estate is connected to an estate purchase broker so that data communication can be performed, there is provided a database of information on estates to be sold which are provided by a person who wants to sell an estate, an estate purchase broker, and the like. An estate group purchasing matching system includes search condition setting means for analyzing a purchase condition described by a person who wants to purchase an estate and his/her attribute information and setting a condition for searching a person who roughly corresponds to it. In the search condition set by this search condition setting means, a priority degree of condition is quantified for each of the items and a search condition having a certain width is set for each item value. Thus, it is possible to extract a plurality of registered candidates who want to purchase an estate from the database containing estate purchase desirer information connected to the network by estate purchase desirer brief extraction means.
Patent KR-20050070075-A (KR)
Title: X-ray equipment
Inventor: DIAZ CARMENA FRANCISCO
IPC: H05G1/32
Filed: 2003-02-07
Abstract: The invention relates to an x-ray device comprising a controlled current converter, a capacitor bank, an inverter, a power source and a high-voltage transformer. The invention also comprises a device which monitors the input voltage and acts on relays of the plugs of a supply transformer of the auxiliary devices, such that it is not necessary to make any manual changes to the supply plugs depending on the supply voltage. In addition, the capacitors can be charged in a programmed manner and the charging voltage of the capacitor bank is fixed and independent of the supply voltage, said device having the ability to operate automatically at a voltage of between 90 and 264 Volts.
Patent KR-20050084046-A (KR)
Inventor: ANSEMS JOHANNES P M
IPC: F21Y101/00
Filed: 2003-11-12
Abstract: Vehicle headlamp provided with a metal halide lamp comprising a discharge vessel surrounded with clearance by an outer envelope and having a ceramic wall which encloses a discharge space containing xenon (Xe) and an ionizable filling, wherein in said discharge space two electrodes are arranged whose tips have a mutual interspacing EA so as to define a discharge path between them, wherein the discharge vessel has an internal diameter Di at least over the distance EA, and wherein Di is smaller than or equal to 2 mm and the relation EA/Di is smaller than 6, with the special feature that said vehicle headlamp has not more than one band-shaped light-absorbing coating laterally of the discharge path.
Patent KR-20050088094-A (KR)
Title: Method for producing naphthalene derivatives
Inventor: POETSCH EIKE
IPC: C07C51/15
Filed: 2003-10-30
Abstract: The invention relates to a method for producing a compound of general formula (I): R-(A1-Z-)mB-CF2O-A2-(A3)n-R', in which R represents alkyl, in which one or more CH2 groups can be substituted, independently of one another, by O, CF2, CH=CH, CH=CF, CF=CF, with the exclusion of peroxide structures O-O and formaldehyde acetals O- CH2-O; A1 represents, independently of one another, 1,4- cyclohexylene, 2,5-1,3-dioxanylene, 1,3-cyclobutylene or (a); A2 and A3 represent 1,4-phenylene, in which independently of one another one to four hydrogen atoms can be substituted by fluorine or one or two CH groups can be substituted by N; Z represents a single bond -CH2- CH2-, -CF2-CF2-, -CH=CH-, -CF=CF-, -CH=CF- or - CF=CH-; B represents 2,6-disubstituted naphthalene, 2,6-disubstituted 5, 6, 7,8-tetrahydronaphthalene or 2,6-disubstituted trans-decaline; R' represents R, F, OCF3, OCF2H, CF3, Cl, SF 5, CN, NCS, and m and n independently of one another represent 0 or 1. The method comprises the following steps: a) conversion of a compound of general formula (II): R-(A1-Z-)mBX, in which X represents halogen or =O and the other symbols are defined as cited for formula (I), into a carboxylic acid derivative with the expulsion of group X and introduction of a C1 structural element; b) reaction of the carboxylic acid derivative with a phenol of general formula (III): HO- A2(-A3)n-R', in which A2, A3, R' and n are defined as cited in formula (I), to form the compound of formula (I).
Patent KR-20050085488-A (KR)
Title: Process for the preparation of a lubricant
Inventor: BENARD GERARD
IPC: C10G45/62
Filed: 2003-12-05
Abstract: Process to prepare a lubricant having a dynamic viscosity at -35 °C of below 5000 cP by performing the following steps: a) contacting a feed containing more than 50 wt% wax in the presence of hydrogen with a catalyst comprising a Group VIII metal component supported on a refractory oxide carrier, and b) contacting the effluent of step (a) with a catalyst composition comprising a noble Group VIII metal, a binder and zeolite crystallites of the MTW type to obtain a product having a lower pour point than the effluent of step (b) and having a viscosity index greater than 120, and (c) adding a pour point depressant additive to the base oil as obtained in step (b).
Patent KR-20050086908-A (KR)
Title: Gradient copolymers soluble or at least dispersible in water as well as in organic solvents
Inventor: GUERRET OLIVIER
IPC: C08F4/00
Filed: 2003-12-11
Abstract: The invention concerns amphiphilic copolymers, in particular gradient amphiphilic copolymers obtained by controlled free radical solution or mass polymerization. The invention also concerns a method for aqueous dissolution of said copolymers. The inventive copolymers are useful in surface treatment techniques and can be used in formulations for paints, adhesives, glues as well as in cosmetics.
Patent KR-20050114246-A (KR)
Title: Admission control and resource allocation in a communication system supporting quality of service
Inventor: TANEJA MUKESH
IPC: H04L12/56
Filed: 2004-03-17
Abstract: A method and apparatus for admission control in a communication system. An Access Network (AN) element determines available resources. When available resources are sufficient to support the requirements of a requested application flow, the AN admits the application flow. The AN periodically, and on trigger events, updates a measure of available resources. The admission control may operate in coordination with a scheduler applying a compensation factor to each flow type, and a compensation factor for aggregate flows of a given user.
Patent KR-20060057526-A (KR)
Title: Virtual networks
Inventor: BONSMA ERWIN REIN
IPC: H04L12/46
Filed: 2004-09-17
Abstract: A virtual network has a plurality of nodes, each node with a list for storing up to a predetermined number (L) of addresses representing links to other such nodes. These links are managed by: receiving (300) a message requesting a link between a first node and a second node; determining (301, 305) whether both the first node and second node has in each case a number of addresses in its list which is less than the predetermined number; in the event that this condition is satisfied, inserting (308) the address of the first node into the list of the second node and inserting (307) the address of the second node into the list of the first node; in the event that this condition is not satisfied, determining (309) whether the first node has a number of addresses in its list which is at least two less than the predetermined number, and if so - (a) selecting (310) from the list of the second node the address of a third node; (b) removing (313) the address of the third node from the list of the second node; (c) removing (314) the address of the second node from the list of the third node; and (d) inserting (311) the address of the second node into the list of the first node and inserting (312) the address of the third node into the list of the first node. (e) inserting (313) the address of the first node into the list of the second node and inserting (314) the address of the first node into the list of the third node.
Patent KR-20060005361-A (KR)
Title: Method for the heterogeneously catalyzed partial direct oxidation of propane and/or isobutane into acrylic acid and/or methacrylic acid
Inventor: MACHHAMMER OTTO
IPC: C07C51/215
Filed: 2004-04-07
Abstract: Disclosed is a method for the heterogeneously catalyzed partial direct oxidation of propane and/or isobutane. According to said method, target product is separated from the product gas mixture obtained in the reaction stage in a reprocessing stage, the remaining product gas mixture is divided into two partial quantities having the same composition, one partial quantity is redirected into the reaction stage while the other partial quantity is discharged, and both the reaction stage and the reprocessing stage are operated at an increased pressure.