DE102009007642A1 - Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader - Google Patents
Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader Download PDFInfo
- Publication number
- DE102009007642A1 DE102009007642A1 DE102009007642A DE102009007642A DE102009007642A1 DE 102009007642 A1 DE102009007642 A1 DE 102009007642A1 DE 102009007642 A DE102009007642 A DE 102009007642A DE 102009007642 A DE102009007642 A DE 102009007642A DE 102009007642 A1 DE102009007642 A1 DE 102009007642A1
- Authority
- DE
- Germany
- Prior art keywords
- product
- mixing kneader
- temperature
- area
- kneader
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1862—Stationary reactors having moving elements inside placed in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/823—Temperature control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00189—Controlling or regulating processes controlling the stirring velocity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur kontinuierlichen Behandlung eines zähviskosen, pastösen Produktes in einem Mischkneter mit einem durchgängigen Produkt- und Gasraum.The The invention relates to a method for continuous treatment a viscous, pasty product in one Mixing kneader with a continuous product and gas space.
STAND DER TECHNIKSTATE OF THE ART
Die industrielle Herstellung von Polymeren, insbesondere die Herstellung von homo- und co-polymeren Elastomeren, erfolgt durch Polymerisationsreaktionen im sogenannten Solution-Polymerisationsverfahren, wobei für eine bessere Durchmischung durch die Verwendung von Lösungsmittel die Viskosität im Rührkesselreaktor abgesenkt wird. Aus der dabei entstehenden Polymerlösung muss das Lösemittel abgetrennt werden. Die Entfernung dieses Verdünnungsmittels erfolgt heute im Koagulation- und Strippverfahren, wobei grosse Mengen Energie in Form von Strippdampf (wet process) eingesetzt werden. Nach diesem Schritt muss das Polymer durch eine mechano-thermische Trocknung aufwendig vom Strippmedium abgetrennt werden. Die Entfernung des Strippmediums erfolgt zweistufig über ein mechanisches Abpressen und atmosphärisches Trocknen. Während dieser Prozesse wird sehr viel Energie in Form von Wasserdampf und sehr viel Waschwasser benötigt, was zu hohen Abwassermengen und, aufgrund der grossen offenen Aggregate, zu hohen Emissionen führt. Parallel dazu muss das Strippmittel und das Lösungsmittel wiederum sehr aufwendig voneinander getrennt werden. Das bestehende Verfahren ist damit eine energetisch sehr ineffiziente, eine von hohen Emissions- und Investitionskosten gekennzeichnete uneffektive Technologie. Die bestehende Technologie ist bekannt, die Risiken sind gering und die Katalysatorsysteme sowie die Verarbeitung sind auf diese Technologie zugeschnitten.The industrial production of polymers, in particular the manufacture of homo- and co-polymeric elastomers, carried out by polymerization reactions in the so-called solution polymerization process, wherein for better mixing through the use of solvents lowered the viscosity in the stirred tank reactor becomes. From the resulting polymer solution, the solvent must be separated. The removal of this diluent takes place today in the coagulation and stripping process, with large Amounts of energy in the form of stripping steam (wet process) are used. After this step, the polymer must be replaced by a mechano-thermal Drying consuming to be separated from the stripping medium. The distance the stripping medium is carried out in two stages via a mechanical Squeezing and atmospheric drying. While These processes are very much energy in the form of water vapor and a lot of washing water is needed, resulting in high wastewater volumes and, due to the large open aggregates, high emissions leads. In parallel, the stripping agent and the solvent must again very expensive to be separated from each other. The existing one Procedure is thus a very energy efficient, one of high emission and investment costs characterized ineffective Technology. The existing technology is aware of the risks are low and the catalyst systems as well as the processing are tailored to this technology.
In
der
Ähnliche
Lösungen werden auch in der
In
der
Neben den energetischen Aspekten und den hohen Emissionen sind vor allem der hohe Aufwand für die Wasserabtrennung für die modernen wasserempfindlichen anionische Polymerisationsverfahren und die Aufarbeitung von extrem temperaturempfindlichen Produkten eine Triebkraft zur Modernisierung des Verfahrens.Next the energetic aspects and the high emissions are above all the high cost of water separation for the modern water-sensitive anionic polymerization and the processing of extremely temperature-sensitive products Driving force to modernize the process.
Aufgabetask
Aufgabe der vorliegenden Erfindung ist es, den Energie- bzw. Wasserdampf- und den Wasserverbrauch zu reduzieren um die Energiebilanz des Prozesses zu verbessern sowie die Effizienz neuer Polymerisationsverfahren zu erhöhen. Parallel dazu können temperaturempfindliche Spezialpolymere hergestellt werden, die mit der bestehenden Technologie nicht bzw. nur unter Zugabe von speziellen Antioxydanten herstellbar sind. Das neue Polymerlösungs-Aufbereitungsverfahren (dry process) hat das Ziel, den Prozess energieeffizienter, umweltfreundlicher und flexibler zu machen.task It is the object of the present invention to reduce the energy or water vapor and to reduce water consumption around the energy balance of the process improve as well as the efficiency of new polymerization to increase. In parallel, temperature-sensitive Special polymers are made using existing technology not or only with the addition of special antioxidants produced are. The new polymer solution processing method (dry process) has the goal of making the process more energy efficient, greener and to make it more flexible.
Lösung der AufgabeSolution of the task
Zur Lösung der Aufgabe führt, dass die Temperatur des Produktes am Austrag über die Drehzahl des Mischkneters bei gegebener Produktzufuhr geregelt wird.to Solution of the task that causes the temperature of the product at discharge via the speed of the mixing kneader is regulated at a given product supply.
Es handelt sich um ein Verfahren und eine Vorrichtung zur kontinuierlichen Behandlung einer Polymerlösung durch direkte Verdampfung von Lösungsmittel, Monomer, Katalysator-, Initiator- oder Reaktionsresten aus der Polymerisation von elastomer-haltigen Polymerlösungen in Mischknetern mit einer oder zwei Rührwellen. Dabei wird eine niedrigviskose Polymerlösung erstens in einer Verdampfungsschleife, zweitens in einem Verdampfungsmischkneter und drittens in einem Entgasungskneter behandelt. Dieses Verfahren eignet sich speziell für temperaturempfindliche Polymere, die bis maximal 160°C behandelt werden dürfen.It is a method and a device for continuous Treatment of a polymer solution by direct evaporation solvent, monomer, catalyst, initiator or reaction residues from the polymerization of elastomer-containing polymer solutions in mixing kneaders with one or two stirrer shafts. It will a low viscosity polymer solution firstly in an evaporation loop, secondly, in an evaporative mixing mixer and thirdly in one Degassing kneader treated. This method is especially suitable for temperature-sensitive polymers up to 160 ° C may be treated.
Bevorzugt wird, die dünnflüssige Polymerlösung zuerst in einer Verdampfungsschleife mit Kontaktwärme vorzukonzentrieren und dann als viskose Polymerlösung in einen Verdampfungsmischkneter so zu dosieren, dass die Viskosität in diesem Aggregat ausreicht, um mehrheitlich über Friktion die Verdampfungsenergie bereit zu stellen, um über 90% des mit der Polymerlösung zugeführten Fluids (z. B. Lösungsmittel) zu verdampfen. Die eingetragene thermische und mechanische Energie wird dabei direkt zur Verdampfung des Lösungsmittels genutzt, wobei das Druckniveau so eingestellt wird, dass die maximale Polymertemperatur aufgrund der Verdampfungskühlung des Lösungsmittels nicht überschritten wird.Prefers is the low-viscosity polymer solution first to pre-concentrate in a vaporization loop with contact heat and then as a viscous polymer solution in an evaporative mixer to dose that the viscosity in this unit is sufficient, by majority about friction the evaporation energy ready to put over 90% of the polymer solution supplied fluids (eg solvent) to evaporate. The registered thermal and mechanical energy is directly used for the evaporation of the solvent, the pressure level is set so that the maximum polymer temperature due the evaporative cooling of the solvent is not exceeded becomes.
Aus diesem Verdampfungskneter wird ein Polymer mit ca. 10% Restfeuchte (z. B. Lösungsmittel) ausgetragen und in einen Entgasungskneter dosiert, um dort auf die endgültig gewünschte Restfeuchte (z. B. Restlösungsmittelkonzentration) eingedampft zu werden.Out This evaporation kneader is a polymer with about 10% residual moisture (For example, solvent) discharged and in a degassing dosed to get there to the final desired Residual moisture (eg residual solvent concentration) evaporated to become.
Zur Verbesserung des Entgasungsprozesses werden kleine Mengen eines Fluids (z. B. Wasser) in den Entgasungskneter dosiert und durch das Verdampfen auf der Oberfläche des Polymers die für eine Oberflächenerneuerung eingetragene mechanische Energie wieder abgeführt, so dass die Polymertemperatur exakt eingestellt werden kann (z. B. um Überhitzung und thermische Schädigung zu vermeiden. Parallel dazu hilft der entstehende Fluiddampf (z. B. Wasserdampf) im Brüdenraum als Strippmittel Partialdruck senkend und kann, im Gegensatz zur kontaminierten heissen Trocknungsluft (hot air) des bestehenden Prozesses, komplett mit dem Lösungsmittel kondensiert werden.to Improvement of the degassing process will be small amounts of one Fluids (eg water) are dosed into the degassing and through evaporating on the surface of the polymer for a Surface renewal registered mechanical energy discharged again, so that the polymer temperature is set exactly can be (for example, overheating and thermal damage to avoid. In parallel, the resulting fluid vapor helps (z. As water vapor) in the vapor space as stripping partial pressure lowering and can, in contrast to the contaminated hot air drying (hot air) of the existing process, complete with the solvent be condensed.
Das gefundene Verfahren eignet sich für hoch temperaturempfindliche und weniger empfindliche Polymere, wie zum Beispiel für die direkte Eindampfung von butadien- und butylstämmigen Elastomeren, wie BR, SBR, SBS, SIS, SBM HBR, NBR oder auch EPDM-stämmigen Elastomeren sowie zur Eindampfung von Copolymerlösungen, die direkt co-polymerisiert werden oder aus zwei Polymerlösungen vor der direkten Eindampfung gemischt werden, wie z. B. Polymerlösungen aus gemischten SBS und SBR Lösungen, also schwierig mischbaren Elastomeren und Plastomeren.The found method is suitable for high temperature sensitive and less sensitive polymers, such as for the direct evaporation of Butadien- and butylstämmigen Elastomers such as BR, SBR, SBS, SIS, SBM HBR, NBR or EPDM-derived Elastomers and for evaporation of copolymer solutions, which are directly co-polymerized or from two polymer solutions be mixed before direct evaporation, such. B. polymer solutions from mixed SBS and SBR solutions, so difficult to mix Elastomers and plastomers.
Aufgrund des geschlossenen Systems des dry process können über 98% des Lösungsmittels im Kreislauf ohne aufwendige Wasserabtrennung zur Polymerisation zurückgeführt und die Lösemittelemissionen bzw. die belastete Abwasser- und Abgasmenge enorm reduziert werden.by virtue of of the closed system of the dry process can over 98% of the solvent in the circulation without expensive water separation returned to the polymerization and the solvent emissions or the polluted wastewater and exhaust gas quantity are enormously reduced.
Entgegen dem genannten Stand der Technik macht es die Erfindung möglich, mittels Extrudern oder Knetmaschinen elastomerhaltige Polymerlösungen, speziell reine Polybutadienlösungen, direkt und ohne weitere Hilfskomponenten auf beliebige Restlösungsmittelgehalte zu entgasen.opposite The cited prior art makes it possible for the invention elastomer-containing polymer solutions by means of extruders or kneaders especially pure polybutadiene solutions, directly and without further Auxiliary components to any residual solvent contents to degas.
Die
Mischkneter, mit denen die hier vorliegende Erfindung getestet wurde,
sind ein- oder zweiwellig, gleich- oder gegenläufig und
werden in den Patenten
Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben.Further Embodiments of the invention are in the subclaims described.
Figurenbeschreibungfigure description
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung; diese zeigt in ihrer einzigen Figur eine blockschaltbildliche Darstellung eines Verfahrensaufbaus einer erfindungsgemässen mehrstufigen Anlage zur kontinuierlichen thermischen Trennung von Stoffgemischen, insbesondere zur Behandlung von Polymerlösungen.Further Advantages, features and details of the invention will become apparent the following description of a preferred embodiment as well as from the drawing; this shows in her single figure a block diagram representation of a process structure of a inventive multi-stage system for continuous thermal Separation of mixtures, in particular for the treatment of polymer solutions.
Eine
beliebige Polymerlösung
Die
aufkonzentrierte Polymerlösung gelangt dann aus dem Verdampfer
Die aufkonzentrierte Polymerlösung kann an einer oder mehreren Stellen nacheinander oder gleichzeitig eindosiert werden. Dabei soll die Dosiermenge der Polymerlösung jeweils durch eine vorgegebene Produkttemperatur gesteuert werden.The concentrated polymer solution may be attached to one or more Make successive or simultaneous dosing. there should the metered amount of the polymer solution in each case by a predetermined product temperature can be controlled.
Dem
Verdampfungskneter
Die
jetzt im Verdampfungskneter
In dem Entgasungskneter entsteht eine Propfenströmung für die Polymerlösung, wobei diese einer stetigen aktiven Oberflächenerneuerung unterliegt und dabei mechanische Dissipationsenergie in der Polymerlösung absorbiert wird.In the degassing kneader produces a plug flow for the polymer solution, which gives a continuous active surface renewal subject and thereby mechanical dissipation energy in the polymer solution is absorbed.
Während
der Entgasung wird die Polymerlösungstemperatur im Entgasungskneter
durch die Zugabe von leicht verdampfbaren, in der Polymerlösung
nicht löslichen Additiven an einer oder mehreren Stellen
im Entgasungskneter unterhalb der Polymerschädigungstemperatur
gehalten. Dies ist durch die Pfeile
Auf
dem Entgasungskneter
An
den Entgasungskneter
Diese
Polymermasse gelangt dann in eine Schneidevorrichtung
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 3683511 A [0003] - US 3683511 A [0003]
- - US 4909898 A [0004] - US 4909898 A [0004]
- - EP 0262594 B1 [0004] EP 0262594 B1 [0004]
- - US 6150498 A [0005] - US 6150498 A [0005]
- - EP 0910588 B1 [0005] - EP 0910588 B1 [0005]
- - DE 2349106 C [0016] - DE 2349106 C [0016]
- - EP 0517068 A1 [0016] - EP 0517068 A1 [0016]
- - EP 0853491 [0016] EP 0853491 [0016]
- - DE 10150900 C1 [0016] - DE 10150900 C1 [0016]
- - EP 02/11578 [0016] - EP 02/11578 [0016]
- - WO 03/035235 A1 [0016] WO 03/035235 A1 [0016]
Claims (3)
Priority Applications (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009007642A DE102009007642A1 (en) | 2009-02-05 | 2009-02-05 | Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader |
EP10708702.5A EP2393564B1 (en) | 2009-02-05 | 2010-02-05 | Method and device for continuously processing material mixtures |
CN201080013081.9A CN102711939B (en) | 2009-02-05 | 2010-02-05 | The mixing carried out by the main vaporization in different mixing and kneading machines and degassing is without thermal release |
EP14170983.2A EP2774666A1 (en) | 2009-02-05 | 2010-02-05 | Controlling of a kneader |
RU2011134026/05A RU2526548C2 (en) | 2009-02-05 | 2010-02-05 | Thermal separation of mixes of materials by primary evaporation and degassing performed in separate mixers |
KR1020117020583A KR20110111536A (en) | 2009-02-05 | 2010-02-05 | Thermal seperation of material mixtures by way of a main vaporation and a dega-sification in seperate mixing kneaders |
PCT/EP2010/000735 WO2010089137A2 (en) | 2009-02-05 | 2010-02-05 | Method and device for continuously processing material mixtures |
PL10708702T PL2393564T3 (en) | 2009-02-05 | 2010-02-05 | Method and device for continuously processing material mixtures |
KR1020177000798A KR101883122B1 (en) | 2009-02-05 | 2010-02-05 | A process for the continuous thermal treatment of mixed substances |
ES14170982.4T ES2629758T3 (en) | 2009-02-05 | 2010-02-05 | Procedure for the continuous treatment of polymer solutions |
EP14170982.4A EP2774665B1 (en) | 2009-02-05 | 2010-02-05 | Process for continuous treatment of polymer solutions |
ES10708702.5T ES2616056T3 (en) | 2009-02-05 | 2010-02-05 | Thermal separation of mixtures of substances by main evaporation and degassing in separate mixer-kneaders |
CA2751537A CA2751537C (en) | 2009-02-05 | 2010-02-05 | A process and a device for the continuous treatment of mixed substances |
US13/148,133 US8519093B2 (en) | 2009-02-05 | 2010-02-05 | Process and a device for the continuous treatment of mixed substances |
BRPI1007922-0A BRPI1007922A2 (en) | 2009-02-05 | 2010-02-05 | a process and device for the continuous treatment of mixed substances |
JP2011548615A JP5905262B2 (en) | 2009-02-05 | 2010-02-05 | Process for continuous treatment of mixtures |
PL14170982T PL2774665T3 (en) | 2009-02-05 | 2010-02-05 | Process for continuous treatment of polymer solutions |
RU2014122581/05A RU2014122581A (en) | 2009-02-05 | 2014-06-04 | THERMAL SEPARATION OF MATERIAL MIXTURES USING BASIC EVAPORATION AND DEGASATION IN SEPARATE MIXING MACHINES |
RU2014122586/05A RU2014122586A (en) | 2009-02-05 | 2014-06-04 | THERMAL SEPARATION OF MATERIAL MIXTURES USING BASIC EVAPORATION AND DEGASATION IN SEPARATE MIXING MACHINES |
JP2015005936A JP6278569B2 (en) | 2009-02-05 | 2015-01-15 | Process for continuous treatment of mixtures |
JP2015027644A JP2015166180A (en) | 2009-02-05 | 2015-02-16 | Continuous processing method of mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009007642A DE102009007642A1 (en) | 2009-02-05 | 2009-02-05 | Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009007642A1 true DE102009007642A1 (en) | 2010-08-12 |
Family
ID=42317400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009007642A Withdrawn DE102009007642A1 (en) | 2009-02-05 | 2009-02-05 | Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009007642A1 (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683511A (en) | 1970-09-04 | 1972-08-15 | Firestone Tire & Rubber Co | Method of removing volatiles from an elastomer |
US3924840A (en) * | 1972-09-18 | 1975-12-09 | Gen Electric | Viscosity control for a plastic molding machine |
GB2177819A (en) * | 1985-07-20 | 1987-01-28 | Krupp Gmbh | Process for operating an extruder |
DE2349106C2 (en) | 1972-10-18 | 1987-02-12 | Heinz Dipl.-Ing. Pratteln List | Mixing kneader |
EP0211578A2 (en) | 1985-07-24 | 1987-02-25 | Research Corporation | N-fluoro-N-perfluoromethyl sulfonamides |
JPS63161390A (en) * | 1986-12-24 | 1988-07-05 | Matsushita Electric Ind Co Ltd | Heat accumulator |
US4909898A (en) | 1986-10-01 | 1990-03-20 | Polysar Limited | Polymer recovery from solution |
EP0517068A1 (en) | 1991-06-07 | 1992-12-09 | List Ag | Mixing kneader |
EP0853491A1 (en) | 1995-10-04 | 1998-07-22 | List Ag | Mixing kneader |
US6150498A (en) | 1996-07-12 | 2000-11-21 | The Dow Chemical Company | Polymer recovery |
DE10150900C1 (en) | 2001-10-18 | 2003-04-24 | List Ag | Mixer-kneader for chemical, physical and thermal processing, has thicker and thinner carrier components mounted on shaft |
-
2009
- 2009-02-05 DE DE102009007642A patent/DE102009007642A1/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683511A (en) | 1970-09-04 | 1972-08-15 | Firestone Tire & Rubber Co | Method of removing volatiles from an elastomer |
US3924840A (en) * | 1972-09-18 | 1975-12-09 | Gen Electric | Viscosity control for a plastic molding machine |
DE2349106C2 (en) | 1972-10-18 | 1987-02-12 | Heinz Dipl.-Ing. Pratteln List | Mixing kneader |
GB2177819A (en) * | 1985-07-20 | 1987-01-28 | Krupp Gmbh | Process for operating an extruder |
EP0211578A2 (en) | 1985-07-24 | 1987-02-25 | Research Corporation | N-fluoro-N-perfluoromethyl sulfonamides |
US4909898A (en) | 1986-10-01 | 1990-03-20 | Polysar Limited | Polymer recovery from solution |
EP0262594B1 (en) | 1986-10-01 | 1992-02-26 | Polysar Limited | Polymer recovery from solution |
JPS63161390A (en) * | 1986-12-24 | 1988-07-05 | Matsushita Electric Ind Co Ltd | Heat accumulator |
EP0517068A1 (en) | 1991-06-07 | 1992-12-09 | List Ag | Mixing kneader |
EP0853491A1 (en) | 1995-10-04 | 1998-07-22 | List Ag | Mixing kneader |
US6150498A (en) | 1996-07-12 | 2000-11-21 | The Dow Chemical Company | Polymer recovery |
EP0910588B1 (en) | 1996-07-12 | 2002-02-27 | The Dow Chemical Company | Polymer recovery |
DE10150900C1 (en) | 2001-10-18 | 2003-04-24 | List Ag | Mixer-kneader for chemical, physical and thermal processing, has thicker and thinner carrier components mounted on shaft |
WO2003035235A1 (en) | 2001-10-18 | 2003-05-01 | List Ag | Kneader |
Non-Patent Citations (1)
Title |
---|
JP 06071640 A (Abstract) * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2774665B1 (en) | Process for continuous treatment of polymer solutions | |
EP2001585B1 (en) | Process and apparatus for conducting polymerization processes | |
DE60312399T2 (en) | Apparatus and method for stirring mixing | |
DE69710727T3 (en) | METHOD OF RECOVERING A POLYMER | |
WO2006034875A1 (en) | Method for the continuous implementation of polymerisation processes | |
EP1127609B1 (en) | Method for processing a product in at least a mixing kneader | |
DE102012106872A1 (en) | Device for carrying out mechanical, chemical and / or thermal processes | |
DE102012000980A1 (en) | Method and device for the mechanical heating of a substance mixture | |
DE2324009A1 (en) | PROCESS FOR THE PRODUCTION OF RUBBER-FILLER MIXTURES CONTAINING RUBBER-FILLER MIXTURES, POWDER-FABRIC, SOFTENING OIL | |
DE2520591C3 (en) | Process and device for the continuous treatment of aqueous homo- and copolymer dispersions, the polymer content of which is at least 50% by weight polymerized | |
DE2339530A1 (en) | MIXING AND EMULSIFYING DEVICE | |
WO2015022079A1 (en) | Process and device for converting polymers/products of solution polymerization into polymer mouldings | |
DE102009007644A1 (en) | Separating material mixtures, particularly solutions, suspensions and emulsion, involves dividing main vaporization and degasification, where main vaporization and degasification are performed in separate mixing kneader | |
DE102009007643A1 (en) | Continuous treatment of viscous paste-like product in mixing kneader having spinning mixing element and permeable product- and gas chamber, comprises determining filling grade of the product by using rotational moment of the mixing element | |
DE102009007641A1 (en) | Separating material mixtures, particularly solutions, suspensions and emulsion, involves dividing main vaporization and degasification, where main vaporization and degasification are performed in separate mixing kneader | |
DE102004019264A1 (en) | Process for the preparation of an absorbent polymer by means of spread drying | |
EP2281009B1 (en) | Process for preparing poly lactic acid | |
DE102009061077A1 (en) | Separating material mixtures, particularly solutions, suspensions and emulsion, involves dividing main vaporization and degasification, where main vaporization and degasification are performed in separate mixing kneader | |
DE102009007642A1 (en) | Method for continuous treatment of viscous, pasty product in a mixing kneader with a common product area and a gas area, comprises regulating the temperature of the product over the number of revolutions of the mixing kneader | |
DE102009007640B4 (en) | Process for the continuous treatment of a viscous, pasty product | |
DE2121190A1 (en) | Process for the production of finely divided bitumen compounds containing block copolymers | |
WO2012000658A1 (en) | Process for thermal separation of a solution consisting of thermoplastic polymer and solvent | |
DE2304361A1 (en) | Drying plastics material in fluid phase - esp. for precipitated polymn. prods. in the form of flakes or particles leaving a centrifuge | |
DE2364996A1 (en) | PROCESS FOR CONTINUOUSLY PRODUCING COMPOSITE FLAKES | |
AT307036B (en) | Process for the production of powdery products based on PVC |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R082 | Change of representative |
Representative=s name: PATENTANWAELTE UND RECHTSANWALT WEISS, ARAT & , DE Representative=s name: PATENTANWAELTE UND RECHTSANWALT DR. WEISS, ARA, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |