Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Patent
1997-05-23
1999-07-20
Jenkins, Daniel J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
B01J 1500, B01J 1912
Patent
active
059253258
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a plasma unit, in particular for treating solids containing alkyl groups with a low-temperature plasma, having a treatment reactor and plasma-generation apparatuses assigned to the treatment reactor.
Plasma units of this type are known. Thus, plasma units of different types of construction are known which have a treatment reactor and plasma-generation apparatuses assigned to the treatment reactor. The treatment reactor possesses a suitable closable orifice through which the objects to be treated can be introduced into the treatment reactor. Thus, for example, DE 41 41 805 A1 discloses a device for producing thermoplastic components using low-temperature plasmas which has a vacuum chamber connected to a vacuum pump. A thermoplastic in granule form can be introduced into the vacuum chamber via a chamber door for the low-temperature plasma treatment. In addition, it is known to introduce solids containing alkyl groups, for example polyolefins, in the form of powder, fibers, films or entire shaped components, into treatment reactors of this type, in order to achieve a surface treatment by means of the low-temperature plasma.
It is a disadvantage of all known plasma units that they are unsuitable for ensuring a penetrating, long-term stable modification of the solids containing alkyl groups to be treated.
The object underlying the invention was therefore to create a plasma unit of the generic type which is of a simple structure and by means of which a homogeneous chemical modification, that is a chemical modification extending over the entire spatial extent of the solid to be treated, is possible.
According to the invention, the object is achieved by a plasm unit having the features specified in claim 1. By means of the fact that an apparatus for generating a melt of the solids to be treated is assigned to the treatment reactor, it is possible in a simple manner to convert the solids into a melt prior to and/or during the low-temperature plasma treatment. It has surprisingly been found that solids converted into a melt, in particular solids containing alkyl groups, can be specifically subjected to a qualitatively and quantitatively high-grade chemical modification. In particular, a chemical modification becomes possible which far surpasses a mere surface treatment of the solids containing alkyl groups.
In an advantageous development of the invention, it is provided that the treatment reactor and the apparatus for generating the melt form separate modules of the plasma unit which are linked to one another. By this means it advantageously becomes possible to optimize each of the modules for its intended purpose, so that overall a variable adaptable plasma unit is created.
In a further advantageous development of the invention, it is provided that the treatment reactor has means for agitating the melt during the plasma treatment. By this means it becomes possible to achieve a homogeneous mixing or homogeneous treatment of the solids containing alkyl groups, which have been converted into the melt, by the low-temperature plasma, so that an essentially complete uniform chemical modification is achieved.
Further advantageous developments of the invention are given by the remaining features specified in the subclaims.
The invention is described in more detail below in an illustrative example with reference to the associated drawing, which shows a plasma unit diagrammatically.
The FIGURE shows a plasma unit designated generally by 10. For reasons of clarity, components which are not essential for the invention, such as mechanical joints, mechanical attachments, detailed depictions of housings etc., have been dispensed with on the diagram. In addition, the plasma unit according to the invention is not restricted to the chosen spatial representation. Thus, any other other assignment of the individual components of the plasma unit, which are still to be described below, can be selected, if they, in their interaction, ensure the desired treatment of the solids containing alkyl groups.
Principal com
REFERENCES:
patent: 2167718 (1939-08-01), Harris, Jr. et al.
patent: 4298440 (1981-11-01), Hood
patent: 5079033 (1992-01-01), Schulz et al.
patent: 5190703 (1993-03-01), Rose et al.
patent: 5234723 (1993-08-01), Babacz
patent: 5316739 (1994-05-01), Yoshikawa et al.
patent: 5558843 (1996-09-01), Glocker et al.
Berger Steffen
Messelhauser Johannes
Schonherr Walter
Arplas Gesellschaft Fur Plasmatechnologie mbH
Jenkins Daniel J.
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