Patent Application
20050049450
1. Field of the Invention
The present invention relates to a melting plasma melting method, and more particularly to a melting plasma method for treatment of an organic waste. More particularly, the organic waste comprises tris-(8-hydroxyquinolinato) aluminum (Alq3).
2. Description of Related Art
Organic electroluminescent materials such as tris-(8-hydroxyquinolinato) aluminum (Alq3) are particularly suitable for flat panel displays and are used extensively in the fabrication of organic light-emitting diodes (OLED). However, Alq3 is difficult to break down so. Alq3 is classified as uncombustible organic waste. Most combustible wastes are disposed of by burning in an incinerator. However, the uncombustible waste burns incompletely so burning uncombustible waste will produce toxic gases and pollute the environment. Since treatment of uncombustible waste is difficult and complicated, a method for treatment of uncombustible. Alq3 organic waste is very important.
The main objective of the present invention is to provide a convenient and non-toxic method to treat. Alq3 organic waste.
To achieve the objective, a melting plasma method for treatment Alq3 organic waste in accordance with the present invention has steps of providing an organic waste comprising Alq3, heating the Alq3 organic waste by melting plasma and forming a non-toxic organic lava by melting the residual organic waste material without any Alq3. Preferably, the Alq3 organic waste is placed in a reaction device and heated by melting plasma in the reaction device. More preferably, the Alq3 organic waste is heated by the melting plasma to over 1300° C. in one hour. The method breaks down the Alq3 completely and does not produce toxic gas or pollute the environment.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
The present invention provides a melting plasma method for treatment of an Alq3 organic waste and product will be non-toxic.
Plasma is a highly ionized gas and is also a collector of molecules, atoms, electrons and ions. Plasma is different from a gas and is considered to be a fourth state of mass.
Melting plasma is a clear heat source not needed burning. The process of using melting plasma to treat waste is an energy conversion and transfer phenomenon. When an active ingredient of the melting plasma decays and produces energy, the energy will be transferred to the waste exposed to the melting plasma. When the waste interacts with the energy, the waste will be atomized and ionized, will decay and finally completely destroyed. The significant principle in using melting plasma to treat organic waste is the fact that melting plasma destroys the bond between the elements comprising the organic waste.
The melting plasma method to treat waste produces simple molecules or atoms like hydrogen, carbon monoxide, carbon, hydrogen chloride and the like. The process does not allow big or complicate molecules to reform so the melting plasma method is very safe and non-polluting.
The melting plasma method has the following characteristics.
The melting plasma method for treatment of Alq3 organic waste in accordance with the present invention comprises the following steps.
Preferably, the organic waste comprising Alq3 provided in step (a) is placed in a reaction device and then heated by melting plasma in the reaction device.
In step (b), the Alq3 organic waste is heated by melting plasma to over 1300° C. in one hour.
In a preferred embodiment, an organic waste comprising Alq3, waste soil and waste glass is heated by melting plasma to over 1300° C. and produces a vitrescent lava. The Alq3 is ionized by heating with melting plasma and produces a simple gas composed of carbon, hydrogen and oxygen, for example, water or carbon dioxide. When the vitrescent lava is cold, the vitrescent lava is assayed including composition analysis, crystal structure analysis and residual analysis. The composition analysis is assayed by Energy Dispersive Spectrometers (EDS) to test the element composition. The result is that most of the product is from the original waste soil and waste glass. The crystal structure analysis is assayed by X-ray diffractometer (XRD), and the result shows that the product is a vitrescent structure. The residual analysis is assayed by High Performance Liquid Chromatography (HPLC), and the results show that the product has no Alq3 peak.
Accordingly, the melting plasma method for treatment of Alq3 organic waste in accordance with the present invention has the following characteristics. The present method can completely treat Alq3, and no residual Alq3 is in the product. Compared with the conventional incinerating method, the present method produces solid lava so the chemical properties of the product are stable. The present method solves the problems with the treatment of Alq3.
Further details of this invention are illustrated in the following examples.
An Alq3 sample composed of different quantities of Alq3, waste soil and waste glass was heated to 1300° C. or 1459° C. in one hour. The melting plasma provided a 100 KW heat source that was mounted in a reaction device. The maximum temperature of the heat source is over 10,000° C., and the electronic density was over 1×1016#/cm3. The mediator of the melting plasma was air. In the process, the temperature and the persistence were controlled by regulating direct current and the amount of gas. In the example, the temperature rate was 7° C./min. The reaction device was composed of 10% CrO4 and 90% AlO3 and the temperature in the reaction device was distributed uniformly.
When the resultant product provided in example 1 cooled, the product appearance was observed. With reference to
The product produced by example 1 was analyzed by copper target XRD assay (λ=1.5406 Å) to determine the crystal structure of the product.
The test sample was produced by pulverizing the product. The powder sample was used to determine the crystal structure by XRD assay. With reference to
The product produced by example 1 was analyzed by an Energy Dispersive Spectrometer (EDS) assay to determine the elemental composition of the product.
An EDS test sample was produced by taking a 2 cubic centimeter product and fixing the product by adding hardener and mounting powder. After the product was hardened, a slow rate Diamond Abrasive Cutting Machine cut the product to produce a plane that was polished. Finally, the test sample was plating an Au layer to let the test sample conduct electricity. With reference to
The product produced by example 1 was analyzed by HPLC to determine the residual composition of the product.
With reference to
With reference to
Although the invention has been explained in relation to its preferred embodiment, that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed is to be understood.
