baber/WOPTO huggingface dataset:
Patent IT-MS950002-A1 (IT)
Title: Sistema per tornitura o sagomatura o lucidatura di sfere, uova, particolari torniti o simili in pietra marmo ecc. senza bloccaggio del
Inventor: BERTELLONI PIETRO
IPC: B28D/
Filed: 1995-03-14
Abstract: Sistema per la fabbricazione in marmo, pietra, alabastro, granito o simili di sfere, uova, particolari di forma tonda quali anche colonne, ampolle ecc. senza bloccaggio del peno da lavorare, senza contropunte, senza bisogno di centratura.Il sistema è composto da rulli o ruote anche indipendenti tra loro e che opportunamente sagomati e seconda del tipo di oggetto da lavorare, fanno girare il pezzo di materiale cilindrico che viene semplicemente posto su di esse; mentre il cilindro di materiale gira trascinato da o dai rulli o ruote, avanza la mola opportunamente sagomata che lo scolpisce dandogli la forma descritta.Il sistema si presta anche per la levigatura e lucidatura degli oggetti finiti al grezzo, dove al posto della mola possono essere istattate delle spazzole, dei nastri abrasivi ruotanti, pietre abrasive, spugne abrasive o simili.Abbiamo realizzato dei prototipi che funzionano perfettamente.
Patent IT-PD990213-A1 (IT)
Inventor: ALBAN ANTONIO
IPC: E05C9/18
Filed: 1999-09-30
Abstract: A lock comprising, within a box-like supporting body (11) and associated with actuation elements (12) which are available to the action of the user and/or of other devices, three locking beaks (13,16): two first lateral ones (13), whose free tips (14) are shaped so as to form mutually opposite claws (15) which lie on the plane of the closure and opening movement, and a third central beak (16), which is kinematically connected and coordinated with respect to the two first beaks (13) and is provided, at its free tip (17), with at least one locking element (18). The three beaks (13,16) define, in association with the actuation elements (12), at least two stable working positions: a first open position, in which the beaks (13,16) lie substantially completely within the box-like supporting body (11), and a second closed position, in which the beaks (13,16) protrude from the box-like supporting body (11) with their free tips (14,17) so as to lock the components with which they are associated. <IMAGE>
Patent IT-PE910003-A1 (IT)
Title: T.i.p. (test infiammabilita' polveri) apparecchiatura per la  determinazione dei limiti di infiammabilita' delle polveri.
Inventor: COSTANTINI FLAVIO
Filed: 1991-01-31
Abstract: UN'ESPLOSIONE CON IL SUO RAPIDO SVILUPPO DI ENERGIA SOTTO FORMA DI CALORE E PRESSIONE, RAPPRESENTA UNO DEI FENOMENI PIU' DANNOSI CHE POSSONO VERIFICARSI NELLA PRATICA INDUSTRIALE, CON EFFETTI SEMPRE DEVASTANTI PER COSE E PERSONE. NEL CAMPO DI QUESTE ATTIVITA' (SOLIDO OSSIDABILE FINEMENTE SUDDIVISO) CHE POSSONO GENERARE UN'ATMOSFERA ESPLODIBILE, L'APPARECCHIATURA TIP, SERVE A MISURARE I LIMITI DI INFIAMMABILITA' DELLE POLVERI E QUINDI A VALUTARNE LA PERICOLOSITA' AI FINI DELLA SICUREZZA.PARTI ESSENZIALI DELL'APPARECCHIATURA TIP SONO.- ALIMENTAZIONE - REATTORE O CAMERA DI TEST - ACQUISIZIONE DATI.CON L'APPARECCHIO TIP E' POSSIBILE MISURARE.- LA MINIMA ENERGIA DI IGNIZIONE - IL GRADIENTE DI PRESSIONE - LA VELOCITA' E LA TEMPERATURA DI FIAMMA - LA MINIMA CONCENTRAZIONE DI OSSIGENO.
Patent IT-PN990101-A1 (IT)
Inventor: ORLANDO GIUSEPPE
IPC: F25B39/04
Filed: 1999-12-28
Abstract: Method for forming the vertical borders of a condenser (1), comprising the phases of shaping said borders, defining a vertical stripe (6) extending along at least one of said borders and free of conduits for the circulation of refrigerant medium, and forming a recess (2) of adequate width and depth along said stripe (6) so as to pull in from the inner area of the blank a portion of the surface thereof, so that, after said forming operation, the overall width of the condenser (1) is reduced to a pre-determined value. Provided are also two vertical stripes (20;21) of a pre-established width along and inside the vertical borders, which are also free of conduits for the circulation of the refrigerant medium, while two appropriately shaped configurations (24;25) oriented towards the back wall of the refrigerator are formed so as to be symmetrical with respect to the median plane orthogonal to the condenser; each such shaped configuration has two distinct surfaces (26;27) extending parallelly to the plane of the condenser (1), arranged at respective different distances from said plane. <IMAGE>
Patent IT-RM950443-A1 (IT)
Title: Dispositivo di azionamento per una valvola per freno motore in motori a combustione interna.
Inventor: SCHMIDT ERWIN
IPC: F02F7/00
Filed: 1995-06-30
Abstract: L'invenzione concerne un dispositivo di azionamento per una valvola freno motore di un motore a combustione interna che comprende una testa cilindri di volta in volta con almeno una valvola di ammissione e una valvola di scarico che controlla lo scambio di gas, dove il dispositivo di azionamento è disposto nella testa cilindri e la valvola freno motore, separata spazialmente dalla valvola di scarico, è azionabile tramite detto dispositivo per la decompressione durante la fase di compressione nell'ambito del punto morto superiore di accensione e il dispositivo di azionamento comprende almeno uno stantuffo idraulico e un cilindro idraulico con tubi idraulici per il collegamento fluodinamico con un tubo di iniezione del motore a combustione interna. Il dispositivo di azionamento è collegato con il tubo di iniezione con distribuzione a vie interposta che collega una pompa di iniezione e un polverizzatore con portapolverizzatore, con la quale distribuzione si può stabilire o interrompere un collegamento fluodinamico tra la pompa di iniezione e il polverizzatore oppure tra la pompa di iniezione e la valvola freno motore. Per realizzare un dispositivo di azionamento del tipo in questione in modo da poter essere impiegato nella maniera più variabile possibile e da poter funzionare
Patent IT-TO940649-A1 (IT)
Title: Procedimento e dispositivo per la sintesi di segnali vocali ad esempio per applicazioni elettromusicali.
Inventor: PALADIN ANDREA
IPC: G10L/
Filed: 1994-08-04
Abstract: La soluzione secondo l'invenzione consente, utilizzando l'usuale tastiera (K) di uno strumento elettronico, di caratterizzare la melodia e la velocità di esecuzione di una generica parte cantata registrata in precedenza. Le finalità di tale applicazione possono essere di natura esecutiva, in quanto si da al musicista la possibilità di "suonare" una voce che canta, sia di tipo didattico, nel caso in cui il principiante cerchi di riprodurre sulla tastiera (K) la linea melodica originale della canzone.(fig. 1).
Patent IT-TO940782-A1 (IT)
Title: Metodo e sistema per il controllo del funzionamento di un motore a combustione interna con alimentazione a metano.
Inventor: FERRERA MASSIMO
IPC: F02B/
Filed: 1994-10-06
Abstract: Vengono descritti un metodo ed un sistema per il controllo del funzionamento di un motore a combustione interna con alimentazione a metano, del tipo in cui ad ogni cilindro del motore è associato un rispettivo dispositivo iniettore di metano. Secondo l'invenzione, almeno quando la velocità di rotazione del motore è inferiore ad una soglia predeterminata, l'iniezione di metano in ogni cilindro viene comandata quando la relativa valvola di aspirazione è già aperta.(Figura 2).
Patent IT-VE940043-A1 (IT)
Title: Procedimento per realizzare elementi anatomici di appoggio e/o  contenimento del piede ed elemento ottenuto con il procedimento.
Inventor: BAGGIO GIORGIO
IPC: A43B7/28
Filed: 1994-09-21
Abstract: Procedimento per realizzare elementi anatomici di appoggio e/o contenimento del piede caratterizzato dal fatto di comprendere le seguenti fasi:- si prepara un elemento costituito da due fogli di supporto tra i quali è interposta una sostanza indurente allo stato fluido,- si inserisce al momento dell'uso un catalizzatore di detta sostanza attraverso una apertura prevista nell'elemento,- si appoggia il piede su detto elemento, e - si attende la solidificazione della sostanza indurente.
Patent NO-20111737-A1 (NO)
Title: Pakningsmonteringer for bruk med vaeskeventiler
Inventor: BELL BRANDON WAYNE
IPC: F16K3/24
Filed: 2011-12-15
Abstract: En beskrivelse av pakningmonteringer for bruk med væskeventiler. En eksempel ventiltrimmontering for bruk med væskeventiler inkluderer et bur (328) og en pakningmontering (330) for å blir plassert i minst en av enten buret, burmonteringen (326) eller en plugg (322) Pakningmonteringen inkluderer en første pakning og en første skraper. Den første pakningen skal gi en belastning til den første skraperen for å hindre inntrengning av kontaminasjon til en dynamisk tetningsflate som skal bli engasjert av den første pakningen. Pakningen inkluderer i tillegg en annen pakning og en annen skraper. Den andre pakningen skal gi en belastning til den andre skraperen. Pakningmonteringen inneholder videre et avstandstykke mellom den første og andre pakningen.
Patent NO-20120607-A1 (NO)
Title: Skjermenhet med Pointmdeia-teknologi; Pointmedia enhet - PE
Inventor: CHRISTENSEN OEYVIND
IPC: G06Q30/02
Filed: 2012-05-23
Abstract: Skjermenhet og tilhørende system for logging av interaksjon, hovedsakelig tilpasset logging av kunde- og produktinteraksjon i butikk. Skjermen vil kunne vise reklamer og systemet består blant annet av sensorer, høytalere, minnekort, batteri, strømledning, IR-mottaker og software. En intern klokke i systemet teller tiden skjermen er på og interagerer med kunden. Siden enheten er utstyrt med sensorer i front, på baksiden og på siden, kan enheten registrere når kunden griper et produkt, eller griper et produkt plassert bak (annonsert produkt) eller på sidene av enheten (konkurrerende produkter). Temperatursensor og hydrometer er integrert i enheten for eksakt måling av omgivelsene. Systemet fungerer også i kjøleskap og kjølere. Enheten vil ha 3G/4G, WiFi, og/eller simkort modul.
Patent NO-20121184-A1 (NO)
Title: Oppbevaringsrordel
Inventor: GETTE NICHOLAS PETER
IPC: E21B23/00
Filed: 2012-10-15
Abstract: En mottakerrørdel (11) som øker ventilerings-strømningsmengden under opphenting av et setteverktøy (57) offentliggjøres. Rørdelen (11) innbefatter en hylse (33) med en omløpsport (49) i en sentral boring (15) avgrenset av et rørformet legeme (13). Hylsen (33) er selektivt bevegelig fra en øvre posisjon til en nedre posisjon. En tetning (38) på hylsen (33) tetter hylsen (33) til boringen (15) så lenge en holder (47) holder hylsen (33) i den øvre posisjon. En omløpspassasje (27) i legemet (13) er i fluidkommunikasjon med omløpsporten (49). Et fallorgan (55) lander på hylsen (33), hvilket blokkerer nedoverrettet strøm gjennom hylsen (33) og aktuerer en hydraulisk funksjon. Fallorganet (55) mottar et fluidtrykk som er større enn fluidtrykket forden hydrauliske funksjon, hvilket frigjør holderen (47) til å bevege hylsen (33) til den nedre posisjon. Dette tillater fluidkommunikasjon fra ovenfor den sentrale boring (15) gjennom omløpspassasjen (27) og gjennom omløpsportene (49) i hylsen (33) nedenfor fallorganet (55).
Patent NO-20141416-A1 (NO)
Title: Fremgangsmåte og system for regulering av fluid
Inventor: KJØNIGSEN TOM
IPC: F04D13/08
Filed: 2014-11-24
Abstract: Et styresystem for fluidtrykk og en fremgangsmåte for regulering av en trykkdifferanse over minst en tetning ved å senke, øke eller holde konstant trykket i et første fluidvolum i forhold til trykket i et andre fluidvolum, som er skilt fra det første fluidvolumet ved den minst ene tetningen, er beskrevet. Systemet omfatter trykksensorer (12, 13) innrettet for avlesing av trykket i det første fluidvolumet og i det andre fluidvolumet, en styreenhet (14) innrettet til å generere et motorstyresignal basert på detektert trykkdifferanse mellom første og andre fluidvolum, og en hydraulisk forflytningsenhet (15, 16) som respons på styresignalet for regulering av trykk i det første fluidvolumet ved å flytte fluid til eller fra det første fluidvolumet.
Patent NO-20160406-A1 (NO)
Title: Anordning for behandling av oppdrettsfisk
Inventor: CARLSEN HELGE
IPC: A01K63/04
Filed: 2016-03-09
Abstract: Det er beskrevet et arrangement for avlusing av fisk i merd ved nedkjøling av prosessvann (salt eller fersk) til under sjøtemperatur i lukket system. Lusen får et kaldtvannssjokk og slipper. Laksen går videre til en merd, og lusa går i filter. Dette er en skånsom og velegnet metode for avlusning i sårbare miljøer og økosystemer. Denne prosessen skader ikke fisken på noen måte, eller noen av de andre artene som lever i nærheten av avlusningsområdet.
Patent PE-70999-A1 (PE)
Inventor: SCOTT GARRETT L
IPC: C03B7/088
Filed: 1998-04-06
Abstract: Apparatus (10) for forming a cased glass stream that includes at least one pair of aligned orifices (22, 28) coupled to sources (12, 40) of core and casing glass such that glass flows by gravity from the sources through the aligned orifices to form a cased glass stream. The orifices are carried by an orifice housing (44) mounted on a frame (46) for movement into abutment seating engagement of the orifice housing against the core and casing glass delivery mechanisms. The frame in accordance with the present invention includes a gimbal mounting arrangement (56 to 68) mounting the orifice housing to the frame so as to be pivotable about a pair of pivot axes (64, 70) that are orthogonal to each other and to the axis of alignment of the orifices. This gimbal mounting arrangement helps accommodate misalignment between the seating surfaces (72, 76) on the orifice housing and the glass delivery mechanisms, and to reduce glass leakage during operation. <IMAGE>
Patent PE-86098-A1 (PE)
Title: Proceso de recuperacion del aceite por secado por pulverizacion
Inventor: DAVIES WILLIAM BLOOR
IPC: C08J3/12
Filed: 1997-06-10
Abstract: REFERIDO A UN PROCESO PARA RECUPERAR EL ACEITE DEL PROCESO DE SECADO POR PULVERIZACION (PSP) DE UNA EMULSION O MICROEMULSION DE AGUA EN ACEITE QUE CONTIENE UN POLIMERO CON AGREGADO DE VINILO SOLUBLE EN AGUA, QUE COMPRENDE: A) CONDENSAR EL ACEITE Y EL AGUA GENERADOS POR DICHO (PSP) USANDO UN CONDENSADOR POR PULVERIZACION PARA OBTENER ACEITE CONDENSADO Y AGUA CONDENSADA, DONDE DICHO (PSP) COMPRENDE LAS ETAPAS DE: SECAR POR PULVERIZACION LA EMULSION O MICROEMULSION EN UN FLUJO DE GAS CON UN TIEMPO DE RESIDENCIA ENTRE 8s Y 120s, RECOGER LAS PARTICULAS POLIMERICAS RESULTANTES Y ADICIONALMENTE AGREGAR UN ACIDO, REGULADOR O BASE A DICHA EMULSION O MICROEMULSION ANTES O DURANTE EL (PSP) PARA PROPORCIONAR A DICHAS PARTICULAS POLIMERICAS UN pH ENTRE 1 Y 11 AL MOMENTO DE DISOLVERSE EN AGUA; B) SEPARAR EL ACEITE CONDENSADO DEL AGUA CONDENSADA; Y C) PURIFICAR EL ACEITE RECUPERADO CON UN LIQUIDO ACUOSO, TAL COMO UNA SOLUCION DE ACIDO SULFURICO, PARA OBTENER UN ACEITE PURIFICADO SUSTANCIALMENTE LIBRE DE SUSTANCIAS QUE DEBILITAN LA POLIMERIZACION Y ADECUADO PARA USARSE EN POLIMERIZACIONES SUBSIGUIENTES
Patent PE-3099-A1 (PE)
Title: Sistema para proporcionar a un usuario datos especificos a su posicion
Inventor: JOHNSTONE ROBERT L
IPC: H04W84/06
Filed: 1997-11-03
Abstract: QUE COMPRENDE: UNA ESTACION DE DIFUSION PARA TRANSMITIR DATOS GENERALES POSIBLEMENTE UTILIZABLES POR UNA PLURALIDAD DE USUARIOS SITUADOS EN DIFERENTES POSICIONES GEOGRAFICAS; UN SATELITE-RELE PARA RETRANSMITIR LOS DATOS GENERALES PROCEDENTES DE LA ESTACION DE DIFUSION A LA REFERIDA PLURALIDAD DE USUARIOS; Y UN TERMINAL RECEPTOR PREVISTO PARA CADA UNO DE LOS USUARIOS, EL CUAL COMPRENDE UN RECEPTOR DE RADIODIFUSION PARA RECIBIR LOS DATOS GENERALES DEL SATELITE-RELE; UNA UNIDAD DE DETERMINACION DE LA POSICION PARA DETERMINAR LA POSICION GEOGRAFICA DEL USUARIO, Y UN PROCESADOR PARA CONVERTIR LOS DATOS GENERALES EN DATOS ESPECIFICOS A LA POSICION BASADOS EN LA POSICION GEOGRAFICA DEL USUARIO TAL COMO DETERMINE LA UNIDAD DE DETERMINACION DE LA POSICION
Patent PE-21596-A1 (PE)
Inventor: FARKAS DANIEL S
IPC: G05B19/10
Filed: 1995-04-28
Abstract: A glass production system that includes a glass forming machine having a multiplicity of operating mechanisms for converting gobs of molten glass into glassware, a plurality of solenoid valves responsive to valve drive signals for operating the multiplicity of operating mechanisms, and an electronic controller for generating the valve drive signals to operate the mechanisms in sequence to produce the glassware. The electronic controller includes an operator panel (FIG. 4) having a plurality of electronic switches (78a through 78t) responsive to an operator in a manual mode of operation for generating valve drive signals to operate selected ones of the mechanisms associated with the individual switches. A plurality of electronic displays (86a through 86t) are disposed on the operator panel each adjacent to an associated one of the electronic switches, and are responsive to the controller for displaying to an operator the operating mechanism of the machine associated with the adjacent switch during the manual mode of operation. <IMAGE>
Patent PL-295932-A1 (PL)
Title: Method of obtaining novel bezazepine compounds
Inventor: CHAPDELAINE MARC JEROME
IPC: A61P25/28
Filed: 1991-12-30
Abstract: A method for the treatment of neurological disorders, comprising administering to a mammal in need of such treatment an effective amount of a compound of formula I or of formula II (formulae set out on pages following the Examples), wherein R1, R2, R3 and R4 are independently selected from: hydrogen, (1-3C)perfluoroalkyl, halo, nitro and cyano; R5 is a (1-5C)alkyl group; or a pharmaceutically acceptable salt thereof. Also provided are compounds and pharmaceutical compositions suitable for the treatment of neurological disorders.
Patent PL-296926-A1 (PL)
Title: Cloning and expression of dna molecules encoding enzymes of fungous origin causing degradation of arabinane
Inventor: VAN HEUVEL MARGARETHA
IPC: A23K30/18
Filed: 1992-03-20
Abstract: The present invention provides the cloning and expression of purified and isolated DNA molecules, obtainable from fungi, which encode enzymes having arabinan-degrading activity. The present invention also provides DNA constructs containing these DNA molecules and methods for their enhanced expression in selected microbial host cells. The present invention further provides methods for the use of the thus-produced arabinan-degrading enzymes.
Patent PL-309823-A1 (PL)
Title: Tablet dispensing device
Inventor: LAMBELET LAWRENCE E JR
IPC: B65D83/04
Filed: 1995-07-28
Abstract: This invention relates to a substantially circular tablet dispenser component system which may be adapted for a variable day start of a prescribed periodic tablet regimen. Also provided are a tablet dispenser kit, a tablet package adapted for filling the tablet dispenser system, methods of filling the tablet dispenser of the invention and methods of administering a prescribed regimen of medication using the tablet dispenser system of the invention. <MATH>
Patent PL-314974-A1 (PL)
Title: Thermally insulating facade facing
Inventor: SCHULZ HARALD
IPC: E04B2/96
Filed: 1996-06-26
Abstract: The fascia surface is formed by glazing elements (2) and sill elements (3) which are formed as thermally separated individual elements attached individually or jointly on a supporting structure made of metal profiled sections. A separation of the profiled sections is provided vertically at each transition between sill and glazing element. Heat-insulating static inserts (9) are inserted into the profiled sections to connect them together. A thermal insulation is provided on the sill along its entire perimeter. The static inserts have a shorter length than the building height.
Patent PL-326710-A1 (PL)
Title: Mercaptoalkylpeptidic compounds having an imidazolic substituent and their application as inhibitors of intercellular substance metaloproteinases and/or of tumor necrosis factor (tnf)
Inventor: BAXTER ANDREW DOUGLAS
IPC: C07D403/12
Filed: 1996-11-22
Abstract: Peptidyl compounds having an imidazole substituent have therapeutic utility via their inhibitory effect on metalloproteinases and tumour necrosis factor.
Patent PL-327310-A1 (PL)
Title: Derivatives of quinazoline
Inventor: LOHMANN JEAN-JACQUES MARCEL
IPC: C07D239/74
Filed: 1996-12-13
Abstract: The invention relates to quinazoline derivatives of the formula: [wherein: Y1 represents -O-, -S-, -CH2-, -SO-, -SO2-, -NR5CO-, -CONR6-, -SO2NR7-, -NR8SO2- or -NR9- (wherein R5, R6, R7, R8 and R9 each independently represents hydrogen, alkyl or alkoxyalkyl); R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, alkyl, alkoxy, alkylthio, amino or alkylamino. R2 represents hydrogen, hydroxy, halogeno, alkyl, alkoxy, trifluoromethyl, cyano, amino or nitro; m is an integer from 1 to 5; R3 represents hydroxy, halogeno, alky, alkoxy, alkanoyloxy, trifluoromethyl, cyano, amino or nitro; R4 represents a group which is or which contains an optionally substituted pyridone, phenyl or aromatic heterocyclic group] and salts thereof; processes for their preparation and pharmaceutical compositions containing a compound of formula I or a pharmaceutically acceptable salt thereof as active ingredient. The compounds of formula I and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.
Patent PL-329280-A1 (PL)
Title: Heat engine with a movable recuperator
Inventor: OBERMOSER KARL
IPC: F02G1/043
Filed: 1997-04-10
Abstract: The machine has a housing (2a) which forms a chamber containing the working medium together with a heat-source (6) and sink (5). The regenerator (7) forms an intermediate heat-accumulator movable between source and sink, and the medium acts on a working piston (4). Compression movement of the piston generates medium flow from source to sink, and expansion movement flow in the reverse direction. The flow resistance offered by the regenerator causes its movement in relation to the medium. The source and skin can be situated near the piston dead-centre positions. They and the regenerator can form flat parallel components. The source can be situated between pistons and regenerator in the housing.
Patent PL-341858-A1 (PL)
Title: Protective clothing resistant to piercing and firearm bullets
Inventor: FELS ACHIM
IPC: B32B27/20
Filed: 1999-01-18
Abstract: Protective clothing for protection against puncture injuries is constructed from more than one layer of a fabric coated with hard solids. The hard solids are applied in accordance with abrasives technology. This protective clothing offers equally good protection against both knife- and needle-like puncture implements. For clothing intended to protect against puncture and projectile injuries, a package of 2-20 layers of a fabric coated with hard solids is combined with a package of 6-50 layers of an uncoated aramid woven fabric.
Patent PL-343621-A1 (PL)
Title: Flat-bottomed tank and method for fitting it with a leak-proof coating
Inventor: PIEHLER ANDREAS
IPC: B65D90/50
Filed: 1999-04-14
Abstract: The tank has at least one pressure stabilised hollow insert with a contents- resistant plastics film superimposed on the insert. The film (4) extends up to the lower area of the inner face of the tank wall (2). The insert has a reduced spacing from the wall when clamped (5) to the tank base inner side. The insert of the tank base extends below the lower part of the clamp. The clamp has a spacing of 100 to 500 mm from the tank base. The outer edge of the film is bonded separately from the clamp.
Patent PL-364162-A1 (PL)
Title: Method for recovering crude 1,3-butadiene by extractive distillation from a c4
Inventor: BOHNER GERD
IPC: B01D3/40
Filed: 2002-02-06
Abstract: A process for recovering crude 1,3-butadiene from a C<SUB>4 </SUB>fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.