DEP0010351DA - Process for the extraction of pure asphalt - Google Patents
Process for the extraction of pure asphaltInfo
- Publication number
- DEP0010351DA DEP0010351DA DEP0010351DA DE P0010351D A DEP0010351D A DE P0010351DA DE P0010351D A DEP0010351D A DE P0010351DA
- Authority
- DE
- Germany
- Prior art keywords
- asphalt
- high polymer
- extraction
- pure asphalt
- heated
- 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
- 239000010426 asphalt Substances 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 7
- 238000000605 extraction Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 3
- 239000007858 starting material Substances 0.000 claims 2
- 239000003085 diluting agent Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
Description
Bei Destillationsrückständen der Mineral- und Teerindustrie ist, bedingt durch die Verarbeitung, eine gewisse Menge von festen Bestandteilen, wie "fixer Kohlenstoff" oder hoch polymerisierte Kohlenwasserstoffe u.dergl. eingeschlossen. Diese wirken sich besonders störend aus bei der Verwendung derartiger Produkte für die verschiedenartigsten Zwecke, wie z.B. Einsatz in der Lackindustrie, Vergußmassen und Isoliermassen. Die Entfernung dieses Stoffs durch Auflösen mit anschließender Filtration ist verhältnismäßig teuer und umständlich.In the case of distillation residues from the mineral and tar industry, a certain amount of solid components such as "fixed carbon" or highly polymerized hydrocarbons and the like are due to the processing. locked in. These have a particularly disruptive effect when such products are used for a wide variety of purposes, such as use in the paint industry, casting compounds and insulating compounds. The removal of this substance by dissolving it with subsequent filtration is relatively expensive and laborious.
Durch das erfindungsgemäße Verfahren können reine Asphalte erhalten werden. Setzt man die Viskosität der Asphalte entweder durch geringen Lösungsmittelzusatz herab, so schwimmen der "fixe Kohlenstoff" die hoch polymerisierten Asphalte u.dergl. in dme Asphalt auf und können - wie bei der Entrahmung der Milch - ob geschöpft werden. Durch Ausnutzung derselben Erscheinung kann auch die Trennung so durchgeführt werden, daß man die Asphalte durch ein Sieb laufen läßt, ähnlich einem umgekehrten Schwitzprozeß bei der Gewinnung von Hartparaffin.Pure asphalts can be obtained by the process according to the invention. If the viscosity of the asphalts is reduced either by adding a small amount of solvent, the "fixed carbon" of the highly polymerized asphalts and the like float. in the asphalt and can - as with the skimming of the milk - be scooped. By exploiting the same phenomenon, the separation can also be carried out in such a way that the asphalts are run through a sieve, similar to a reverse sweating process in the recovery of hard paraffin.
Man hat auch die Möglichkeit, den Asphalt auf einer erwärmten Platte langsam, ähnlich einem Seigerprozeß, auf einer geneigten Fläche von dem "fixen Kohlenstoff" zu trennen. Hierbei bleiben die hochpolymeren Stoffe auf der geneigten Fläche liegen, während der Asphalt langsam abläuft.It is also possible to slowly separate the asphalt from the "fixed carbon" on a heated plate, similar to a Seiger process, on an inclined surface. The high-polymer materials remain on the inclined surface while the asphalt slowly runs off.
Beispiel 1: Ein Destillationsrückstand mit dem Schmelzpunkt von 50° wird auf feinmaschige Siebe aufgebracht und diese werden in Kammern mit direktem Dampf horizontal eingehängt. Der Asphalt tropft durch die Siebe, zurück bleiben die festen Bestandteile.Example 1: A distillation residue with a melting point of 50 ° is applied to fine-meshed sieves and these are hung horizontally in chambers with direct steam. The asphalt drips through the sieves, leaving behind the solid components.
Beispiel 2: Eine um 20° geneigte Platte wird auf einer Temperatur von 90° gehalten und ein bei 50° schmelzender Destillationsrückstand darauf aufgebracht. Dieser läuft langsam ab, zurück bleiben die hochpolymeren Stoffe.Example 2: A plate inclined by 20 ° is kept at a temperature of 90 ° and a distillation residue which melts at 50 ° is applied to it. This takes place slowly, leaving behind the high polymer materials.
Claims (3)
Family
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