ES2011008B3 - Procedimiento para la elaboracion de material de partida mediante pirolisis. - Google Patents
Procedimiento para la elaboracion de material de partida mediante pirolisis.Info
- Publication number
- ES2011008B3 ES2011008B3 ES86116748T ES86116748T ES2011008B3 ES 2011008 B3 ES2011008 B3 ES 2011008B3 ES 86116748 T ES86116748 T ES 86116748T ES 86116748 T ES86116748 T ES 86116748T ES 2011008 B3 ES2011008 B3 ES 2011008B3
- Authority
- ES
- Spain
- Prior art keywords
- pyrolysis
- gas
- atmospheric pressure
- elaboration
- procedure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000197 pyrolysis Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000007858 starting material Substances 0.000 title 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 150000001491 aromatic compounds Chemical class 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000012958 reprocessing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
- C10B47/22—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge in dispersed form
- C10B47/24—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge in dispersed form according to the "fluidised bed" technique
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Dispersion Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Glass Compositions (AREA)
- Saccharide Compounds (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA EL ACABADO PIROLITICO DE PLASTICO, CAUCHO Y OTROS MATERIALES HIDROCARBONADOS EN EL QUE EL GAS DE PIROLISIS GENERADO EN UNA ETAPA DE ENFRIAMIENTO (80) SE CONDENSA A UNA TEMPERATURA LIGERAMENTE SUPERIOR AL PUNTO DE CONGELACION DEL AGUA Y A UNA SOBREPRESION DE APROXIMADAMENTE 0,8 A 1,4 BAR. A CONTINUACION EL CONDENSADO PRODUCIDO SE SEPARA Y SE CALIENTA HASTA UNA TEMPERATURA NORMAL DE ALMACENAMIENTO Y DEPRESURIZA. EL GAS ASI PRODUCIDO SE RECICLA COMO UNA GAS ESPECIAL EN LA PIROLISIS. CON ESTE TRATAMIENTO SE ELEVA ESENCIALMENTE LA FRACCION DE AROMATICOS EN LOS GASES DE PIROLISIS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853545954 DE3545954A1 (de) | 1985-12-23 | 1985-12-23 | Verfahren zum pyrolytischen aufarbeiten von ausgangsmaterial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2011008B3 true ES2011008B3 (es) | 1989-12-16 |
Family
ID=6289486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES86116748T Expired ES2011008B3 (es) | 1985-12-23 | 1986-12-02 | Procedimiento para la elaboracion de material de partida mediante pirolisis. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4746406A (es) |
| EP (1) | EP0226895B1 (es) |
| JP (1) | JPS62176586A (es) |
| AT (1) | ATE45586T1 (es) |
| DE (2) | DE3545954A1 (es) |
| ES (1) | ES2011008B3 (es) |
| GR (1) | GR3000150T3 (es) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3721451C1 (de) * | 1987-06-30 | 1988-12-08 | Asea Brown Boveri | Verfahren zum Betreiben einer Pyrolyseanlage |
| EP0308669A1 (de) * | 1987-08-29 | 1989-03-29 | Asea Brown Boveri Aktiengesellschaft | Verfahren zum Verwerten von Halogenkohlenwasserstoffe enthaltendem Ausgangsmaterial |
| DE3835038A1 (de) * | 1987-11-19 | 1990-04-19 | Asea Brown Boveri | Verfahren zum verringern der nebenprodukte bei der erzeugung vn pyrolysegas |
| DE3743752A1 (de) * | 1987-12-23 | 1989-07-13 | Asea Brown Boveri | Verfahren zum aufarbeiten von abfallmaterial |
| DD285506A7 (de) * | 1989-01-16 | 1990-12-19 | ���@������������������������@�������`������k�� | Verfahren zur vollstaendigen verwertung von hochpolymerabprodukten |
| US5208401A (en) * | 1989-06-28 | 1993-05-04 | Universite Laval | Separation of commercially valuable chemicals from tire-derived pyrolytic oils |
| US5157176A (en) * | 1990-07-26 | 1992-10-20 | Munger Joseph H | Recycling process, apparatus and product produced by such process for producing a rubber extender/plasticizing agent from used automobile rubber tires |
| US5158983A (en) * | 1991-10-04 | 1992-10-27 | Iit Research Institute | Conversion of automotive tire scrap to useful oils |
| US5230777A (en) * | 1991-12-13 | 1993-07-27 | James Jarrell | Apparatus for producing fuel and carbon black from rubber tires |
| US5504267A (en) * | 1992-04-06 | 1996-04-02 | S-P Reclamation, Inc. | Resource recovery by catalytic conversion of polymers |
| US5369215A (en) * | 1992-04-06 | 1994-11-29 | S-P Reclamation, Inc. | Depolymerization method for resource recovery from polymeric wastes |
| US5264640A (en) * | 1992-04-06 | 1993-11-23 | S-P Reclamation, Inc. | Depolymerization method for resource recovery from polymeric wastes |
| DE4234385A1 (de) * | 1992-10-06 | 1994-04-07 | Formex Trading Gmbh | Verfahren zur Pyrolyse von organischen Stoffen |
| US5286374A (en) * | 1993-02-26 | 1994-02-15 | Chen Huang Chuan | Process for cracking waste rubber tires |
| DE4418562A1 (de) * | 1993-06-29 | 1995-01-12 | Leybold Durferrit Gmbh | Verfahren und Vorrichtung zur Behandlung von im wesentlichen aus Kunststoff oder Gummi bestehendem Gut |
| US5389691A (en) * | 1993-09-07 | 1995-02-14 | Univ. Of Wyoming | Process for co-recycling tires and oils |
| DE4334114A1 (de) * | 1993-10-07 | 1995-04-13 | Hoechst Ag | Verfahren zur Gewinnung von Wertstoffen bei der Aufarbeitung von Polyvinylchlorid |
| US5636580A (en) * | 1995-11-22 | 1997-06-10 | Kanis; Douglas R. | Pyrolysis system and a method of pyrolyzing |
| DE59603113D1 (de) * | 1995-12-15 | 1999-10-21 | Ciments Vigier S A | Verfahren zur wiederverwertung und rezyklierung von schwermetalle enthaltenden organischen polymeren |
| ES2199612B1 (es) * | 2000-03-02 | 2005-02-16 | Energia Natural De Mora, S.L. | Planta transformadora de residuos solidos y/o biomasa en un gas combustible. |
| PL362718A1 (en) * | 2000-09-29 | 2004-11-02 | Federal Recycling Technologies, Inc. | Apparatus and method for recovering marketable products from scrap rubber |
| US7344622B2 (en) * | 2003-04-08 | 2008-03-18 | Grispin Charles W | Pyrolytic process and apparatus for producing enhanced amounts of aromatic compounds |
| EP2457977A3 (en) | 2004-10-13 | 2012-10-24 | Charlie Holding Intellectual Property, Inc. | Apparatus for producing enhanced amounts for aromatic componds |
| US20060144306A1 (en) * | 2005-01-03 | 2006-07-06 | George Montgomery | Method for converting tire rubber to coke |
| BRPI0613063A2 (pt) * | 2005-07-11 | 2012-10-09 | Hasenkrug Werner | processo para a preparação de produtos contendo hidrocarbonetos, e, dispositivo para realização do processo |
| DE102008019237A1 (de) | 2007-05-18 | 2008-11-27 | Roland Bender | Verfahren und Anlage zur Aufbereitung von kohlenwasserstoffhaltigen Produkten |
| DE102007051373B4 (de) * | 2007-10-26 | 2010-11-11 | Hii-Gmbh - Industrianlagen - Bau Und Beratung | Verfahren und Vorrichtung zur Gewinnung von Diesel oder Heizöl aus kohlenwasserstoffhaltigen Rückständen |
| DE202008007674U1 (de) | 2008-06-09 | 2009-02-12 | Fittkau, Wilfried, Dipl.-Ing. | Anlage zur Erzeugung von Elektroenergie durch Depolimerisation von Polimeren, insbesondere Altreifen |
| US9447332B2 (en) | 2013-02-12 | 2016-09-20 | Saudi Basic Industries Corporation | Conversion of plastics to olefin and aromatic products using temperature control |
| US8895790B2 (en) | 2013-02-12 | 2014-11-25 | Saudi Basic Industries Corporation | Conversion of plastics to olefin and aromatic products |
| US9428695B2 (en) | 2013-02-12 | 2016-08-30 | Saudi Basic Industries Corporation | Conversion of plastics to olefin and aromatic products with product recycle |
| US10329491B2 (en) * | 2013-08-09 | 2019-06-25 | Amit Tandon | Method and retort vessel for enabling continuous thermal or thermo-catalytic degradation of mixed waste plastic feedstock |
| CZ2014534A3 (cs) * | 2014-08-07 | 2016-02-24 | Alpajar Group S.R.O. | Zařízení pro kontinuální termické zpracování ojetých či jinak znehodnocených pneumatik |
| US10975313B2 (en) | 2017-01-05 | 2021-04-13 | Sabic Global Technologies B.V. | Conversion of waste plastic through pyrolysis to high value products like benzene and xylenes |
| US10364395B2 (en) * | 2017-04-13 | 2019-07-30 | Kuwait Institute For Scientific Research | Pyrolysis reactor system for the conversion and analysis of organic solid waste |
| FR3087353B1 (fr) * | 2018-10-18 | 2022-12-16 | Arkema France | Procede de traitement d'un effluent gazeux issu d'une decomposition pyrolytique d'un polymere |
| WO2020225219A1 (de) * | 2019-05-03 | 2020-11-12 | Biofabrik White Refinery Gmbh | Verfahren und vorrichtung zur verwertung von vorzugsweise polyolefinhaltigen kunststoffabfällen oder -resten |
| CZ308787B6 (cs) | 2019-09-06 | 2021-05-19 | TyReCycle a.s. | Způsob kontinuálního termického zpracování ojetých nebo poškozených či jinak znehodnocených pneumatik a zařízení k provádění tohoto způsobu |
| EP3858950A1 (en) * | 2020-01-31 | 2021-08-04 | Danmarks Tekniske Universitet | A pyrolysis system, a method for producing purified pyrolysis gas and pyrolysis liquids and use of a pyrolysis system |
| US11999920B2 (en) | 2020-09-14 | 2024-06-04 | Ecolab Usa Inc. | Cold flow additives for plastic-derived synthetic feedstock |
| CA3209451A1 (en) | 2021-03-10 | 2022-09-15 | Theodore C. Arnst | Stabilizer additives for plastic-derived synthetic feedstock |
| US11584888B2 (en) | 2021-03-15 | 2023-02-21 | Anellotech, Inc. | Two step process for chemically recycling plastic waste |
| EP4416248A1 (en) | 2021-10-14 | 2024-08-21 | Ecolab Usa Inc. | Antifouling agents for plastic-derived synthetic feedstocks |
| WO2023087075A1 (en) * | 2021-11-22 | 2023-05-25 | Plastron Solutions Pty Ltd | Method and apparatus for the decomposition and processing of end of life and contaminated waste plastics |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2214368A (en) * | 1938-08-29 | 1940-09-10 | Shell Dev | Process for the recovery of liquids |
| US3174926A (en) * | 1961-12-11 | 1965-03-23 | Nat Tank Co | Methods and means for low temperature separation |
| US3489678A (en) * | 1966-11-28 | 1970-01-13 | Phillips Petroleum Co | Precluding liquid from a compressing zone |
| US3843457A (en) * | 1971-10-14 | 1974-10-22 | Occidental Petroleum Corp | Microwave pyrolysis of wastes |
| US3970524A (en) * | 1972-05-12 | 1976-07-20 | Funk Harald F | Treating waste materials to produce usable gases |
| US4206186A (en) * | 1975-02-06 | 1980-06-03 | Holter Gesellschaft Fur Patentverwertungsverfahren Mbh | Refuse pyrolysis |
| JPS544722B2 (es) * | 1975-03-13 | 1979-03-09 | ||
| DE2658371C2 (de) * | 1976-12-23 | 1983-03-03 | Carl Robert Eckelmann AG, 2000 Hamburg | Verfahren zum Pyrolysieren von Altreifen |
| US4284616A (en) * | 1978-02-15 | 1981-08-18 | Intenco, Inc. | Process for recovering carbon black and hydrocarbons from used tires |
-
1985
- 1985-12-23 DE DE19853545954 patent/DE3545954A1/de not_active Withdrawn
-
1986
- 1986-12-02 DE DE8686116748T patent/DE3665070D1/de not_active Expired
- 1986-12-02 AT AT86116748T patent/ATE45586T1/de not_active IP Right Cessation
- 1986-12-02 EP EP86116748A patent/EP0226895B1/de not_active Expired
- 1986-12-02 ES ES86116748T patent/ES2011008B3/es not_active Expired
- 1986-12-19 US US06/945,299 patent/US4746406A/en not_active Expired - Fee Related
- 1986-12-22 JP JP61306162A patent/JPS62176586A/ja active Pending
-
1989
- 1989-09-12 GR GR89400164T patent/GR3000150T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176586A (ja) | 1987-08-03 |
| ATE45586T1 (de) | 1989-09-15 |
| DE3545954A1 (de) | 1987-07-02 |
| EP0226895A2 (de) | 1987-07-01 |
| EP0226895B1 (de) | 1989-08-16 |
| DE3665070D1 (en) | 1989-09-21 |
| US4746406A (en) | 1988-05-24 |
| GR3000150T3 (en) | 1990-11-29 |
| EP0226895A3 (en) | 1987-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2011008B3 (es) | Procedimiento para la elaboracion de material de partida mediante pirolisis. | |
| MX172913B (es) | Proceso para la preparacion de espumas rigidas de poliuretano que tienen una baja conductividad termica | |
| ES531582A0 (es) | Procedimiento para la separacion de etanol de la solucion que contiene etanol que resulta de la fermentacion alcoholica | |
| ES554684A0 (es) | Procedimiento para producir liquidos con contenido de hidrocarburos a partir de biomasa | |
| ES2118150T3 (es) | Procedimiento para producir espuma de resina de poliester. | |
| JPS5653104A (en) | Separation of polymer from polymer solution | |
| DE3870525D1 (de) | Halogenkohlenwasserstoffmischungen fuer kuehlzwecke. | |
| GB2271349A (en) | Treating biomass material | |
| CA2071921A1 (en) | Apparatus and process for steam treating carbonaceous material | |
| PH23281A (en) | A process for the manufacture of algenates (polyuronides) with altered physical properties | |
| ES8800991A1 (es) | Procedimiento de tratamiento termico para el acondicionamie nto respecto al secado y-o humedecido de cueros, pellejos, pieles y similares. | |
| GB2018565A (en) | Novel tobacco product and improved process for the expansion of tobacco | |
| ES523203A0 (es) | "un metodo para expandir tabaco" | |
| MX154625A (es) | Procedimiento para la produccion continua de alcohol butilico secundario | |
| KR890015985A (ko) | 고순도 비스페놀 a의 제조방법 | |
| ES519926A0 (es) | Un procedimiento para aumentar el porcentaje vacio de filamentos huecos. | |
| ES548404A0 (es) | Procedimiento para ajustar las propiedades estructurales y superficiales de materiales oxidicos | |
| BE886042A (fr) | Procede de dealkylation, a la vapeur d'eau d'hydrocarbures aromatiques | |
| ES2064471T3 (es) | Procedimiento para preparar cristales de sulfuro sodico anhidro. | |
| BR8904360A (pt) | Processo para gaseificacao de carvao e ulterior tratamento do gas produto | |
| ECSP910798A (es) | Procedimiento para fabricar un material combustible solido a partir de residuos solidos urbanos y/o industriales asimilables a urbanos y/o agricolas | |
| ES2109582T3 (es) | Procedimiento para la obtencion de omega-difluorcarboxilcompuestos alifaticos. | |
| ES479445A1 (es) | Un procedimiento para obtener benceno de alta pureza. | |
| BR8201362A (pt) | Processo para orientacao molecular de material plastico disposicao para obtencao do processo e material plastico orientado | |
| ES2061903T3 (es) | Procedimiento para la obtencion de condensados de acidos arilsulfonicos y formaldehido y su empleo. |