DE407769C - Filter with a porous body consisting of glass particles sintered together - Google Patents
Filter with a porous body consisting of glass particles sintered togetherInfo
- Publication number
- DE407769C DE407769C DEZ13871D DEZ0013871D DE407769C DE 407769 C DE407769 C DE 407769C DE Z13871 D DEZ13871 D DE Z13871D DE Z0013871 D DEZ0013871 D DE Z0013871D DE 407769 C DE407769 C DE 407769C
- Authority
- DE
- Germany
- Prior art keywords
- filter
- glass
- porous body
- sintered together
- glass particles
- 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
- 239000011521 glass Substances 0.000 title claims description 12
- 239000002245 particle Substances 0.000 title claims description 4
- 239000005373 porous glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/012—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Glass Compositions (AREA)
Description
Filter mit einem porösen Körper, der aus zusammengesinterten Glasteilchen besteht. Den Gegenstand der vorliegenden Erfindung bildet ein Filter, das wegen seiner hohen Widerstandsfähigkeit gegen Säuren und ätzende Flüssigkeiten und wegen seiner sonstigen Eigenschaften sowohl für wissenschaftliche chemische Arbeiten als auch für technische Zwecke gut geeignet ist. Das der Erfindung entsprechende Filter besteht aus einem an sich bereits für Filterzwecke vorgeschlagenen porösen Körper aus zusammengesinterten Glasteilchen, der gemäß der Erfindung in einen Behälter aus nichtporösem Glas eingeschmolzen ist. Es hat sich gezeigt, daß eine solche Verschmelzung gut und zuverlässig gelingt, wobei man zweckmäßig solche porösen und nichtporösen Glaskörper miteinander verschmilzt, die die gleichen Wärmeausdehnunggszahlen besitzen. Durch das Einschmelzen des eigentlichen Filterkörpers in den Behälter wird jeder Spalt zwischen Filterkörper und Behälter vermieden, so daß die Filterwirkung allein durch die gewählte Größe der zusammengesinterten Glaskörner bedingt wird. Ebenso wird auch jeder stets einen unliebsamen Fremdkörper bildende Kitt an der Verbindungsstelle des porösen Körpers und des Behälters vermieden. D,ie.glatte Glaswand des Behälters verhindert zudem das Emporsteigen einer' zu filtrierenden oder einer filtrierten Flüssigkeit an der Behälterwandung, was insbesondere. von Vorteil bei quantitativen chemischen Arbeiten ist, und der Glasbehälter erlaubt, wenn er durchsichtig hergestellt wird, mühelos den Fortgang der Arbeiten zu beobachten.Filter with a porous body made up of glass particles sintered together consists. The subject of the present invention is a filter that because of its high resistance to acids and corrosive liquids and because of its other properties both for scientific chemical work as is also well suited for technical purposes. The filter according to the invention consists of a porous body already proposed per se for filter purposes of glass particles sintered together, which according to the invention is placed in a container made of non-porous glass is melted down. It has been shown that such a merger succeeds well and reliably, using such porous and non-porous ones expediently Glass bodies fused together that have the same coefficients of thermal expansion. By melting the actual filter body into the container, each Gap between the filter body and container avoided, so that the filter effect alone is caused by the selected size of the glass grains sintered together. as well every putty that always forms an unpleasant foreign body becomes at the connection point the porous body and the container avoided. The smooth glass wall of the container also prevents a 'to be filtered or a filtered one from climbing up Liquid on the container wall, what in particular. an advantage with quantitative ones chemical work is permitted, and the glass container if made transparent will effortlessly observe the progress of the work.
In der Zeichnung ist ein Ausführungsbeispiel eines der Erfindung entsprechenden Filters in einem Querschnitt dargestellt, bei dem der Behälter Trichterform besitzt. Das Filter besteht hier aus einem Glasgefäß a, in das eine poröse Platte eingeschmolzen ist, die sich aus zwei übereinandergeschichteten Teilen b1 und b2 zusammensetzt. Die beiden Teile b1 und b2 sind ebenfalls miteinander verschmolzen. Beide .sind, um Temperatureinflüsse unschädlich zu machen und ein gutes Anschmelzen an das Gefäß a zu ermöglichen, aus Glaspulver von derselben Wärmeausdehnungszahl, wie sie das zu dem Gefäß a verwendete Glas aufweist, hergestellt, und zwar der obere Teil aus einem gröberen Pulver als der untere. Zur Versteifung der Platte b1, b2 ist außerdem in den unteren Teil b2 ein Gitter c aus nichtporösem Glas eingeschmolzen.In the drawing is an embodiment of one corresponding to the invention Filters shown in a cross section in which the container has a funnel shape. The filter here consists of a glass vessel a into which a porous plate is melted which is composed of two superimposed parts b1 and b2. The two parts b1 and b2 are also fused together. Both are, to make temperature influences harmless and a good melting on the vessel a to allow from glass powder of the same coefficient of thermal expansion as it having glass used for the vessel a, namely the upper part of a coarser powder than the lower one. To stiffen the plate b1, b2 is also A grid c made of non-porous glass is melted into the lower part b2.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ13871D DE407769C (en) | 1923-06-27 | Filter with a porous body consisting of glass particles sintered together |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ13871D DE407769C (en) | 1923-06-27 | Filter with a porous body consisting of glass particles sintered together | |
| DE218286X | 1923-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE407769C true DE407769C (en) | 1925-01-02 |
Family
ID=25762408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEZ13871D Expired DE407769C (en) | 1923-06-27 | Filter with a porous body consisting of glass particles sintered together |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE407769C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767132C (en) * | 1938-09-30 | 1951-11-08 | Glasfabrik Sophienhuette Richa | Process for inserting filter plates or other plate-shaped parts into glass or quartz vessels |
-
0
- DE DEZ13871D patent/DE407769C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767132C (en) * | 1938-09-30 | 1951-11-08 | Glasfabrik Sophienhuette Richa | Process for inserting filter plates or other plate-shaped parts into glass or quartz vessels |
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