DE439509C - Process for the production of finely divided, particularly voluminous substances - Google Patents

Process for the production of finely divided, particularly voluminous substances

Info

Publication number
DE439509C
DE439509C DEG53875D DEG0053875D DE439509C DE 439509 C DE439509 C DE 439509C DE G53875 D DEG53875 D DE G53875D DE G0053875 D DEG0053875 D DE G0053875D DE 439509 C DE439509 C DE 439509C
Authority
DE
Germany
Prior art keywords
finely divided
production
substances
voluminous
particularly voluminous
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
Application number
DEG53875D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DR V KOHLSCHUETTER
V KOHLSCHUETTER DR
Evonik Operations GmbH
Original Assignee
DR V KOHLSCHUETTER
V KOHLSCHUETTER DR
TH Goldschmidt AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DR V KOHLSCHUETTER, V KOHLSCHUETTER DR, TH Goldschmidt AG filed Critical DR V KOHLSCHUETTER
Priority to DEG53875D priority Critical patent/DE439509C/en
Application granted granted Critical
Publication of DE439509C publication Critical patent/DE439509C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/145—After-treatment of oxides or hydroxides, e.g. pulverising, drying, decreasing the acidity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

Verfahren zur Herstellung fein zerteilter, besonders voluminöser Stoffe. In dem Patent q.38221 ist ein Verfahren zur Herstellung fein zerteilter fester Stoffe unter Schutz gestellt, bei dem man Stoffe als disperse Systeme in gasförmigen Medien erzeugt und sie daraus als feste Stoffe elektrisch niederschlägt.Process for the production of finely divided, particularly voluminous materials. In the patent q.38221 is a process for the production of finely divided solids placed under protection, in which one substances as disperse systems in gaseous media generated and precipitated them electrically as solid substances.

Es hat sich nun gezeigt, daß durch Zuführung von überhitztem Wasserdampf zu dem System Rauch-Gas ummittelbar vor der elektrischen -Niederschlagung das erhaltene Produkt voluminöser und flockiger ausfällt, welche Eigenschaft für manche Zwecke wertvoll ist.It has now been shown that by supplying superheated steam to the smoke-gas system immediately before the electrical precipitation the received Product turns out to be more voluminous and flaky, which is a property for some purposes is valuable.

Bezeichnend ist z. B. der Unterschied bei Kupferoxyd, je nachdem vor der Niederschlagung überhitzter Wasserdampf zugeführt oder nicht zugeführt wurde. Während der Niederschlag im letzteren Falle dicht und glatt auf der Niederschlagsfläche aufliegt, ist er im ersteren Falle flockig lose, ohne daß er einen wesentlichen Feuchtigkeitsgehalt aufweist.Significant is z. B. the difference in copper oxide, depending on the above the suppression of superheated steam was supplied or not supplied. While the precipitation in the latter case is dense and smooth on the precipitation surface rests on it, in the former case it is flaky and loose without having any substantial Has moisture content.

Ein Kupferoxyd, das nach dem beschriebenen Verfahren unter Einblasen von Wasserdampf hergestellt wurde, hatte für i g ein Volumen von 3,74 ccm gegenüber einem solchen, das ohne Wasserdampfbehandlung erzeugt wurde und für i g den Raum von 2,29 ccm einnahm. Ein Präparat käuflichen, feinstteiligen Kupferoxydes hatte für i g das Volumen von o,81 ccm.A copper oxide that is blown in according to the method described was produced by steam, had a volume of 3.74 ccm for i g one that was generated without steam treatment and for i g the room of 2.29 cc. A preparation of commercially available, finely divided copper oxide had for i g the volume of 0.81 ccm.

Dieselbe lose und flockige Beschaffenheit zeigen auch Proben von Bleioxyd und Zinkoxyd, die nach diesem Verfahren hergestellt worden sind. Wenn man diese Stoffe mit den nach dem Verfahren ohne Anwendung von Wasserdampf hergestellten vergleicht, so ergibt sich, daß i g des nach dem neuen Verfahren hergestellten Bleioxydes ein Volumen von 2,40 ccm einnimmt, während die gleiche Gewichtsmenge des nach dem älteren Verfahren hergestellten Bleioxydes nur 1,81 ccm Raum einnimmt. Ein ähnlicher Unterschied zeigt sich auch beim Zinkoxyd. i g dieses nach dem neuen Verfahren hergestellten Stoffes hat ein Volumen von 1o ccm, während i g dieses nach dem alten 'Verfahren hergestellten Körpers 8,81 ccm Raum einnimmt.Samples of lead oxide show the same loose and flaky texture and zinc oxide produced by this process. If you have this Compares substances with those produced by the process without the use of steam, it follows that i g of the lead oxide produced by the new process is a Occupies volume of 2.40 cc, while the same amount of weight that after the elder The lead oxide produced by the process takes up only 1.81 ccm of space. A similar difference is also shown in the case of zinc oxide. i g this manufactured according to the new process The substance has a volume of 10 ccm, while this is done according to the old 'method produced body takes up 8.81 ccm space.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung fein zerteilter, besonders voluminöser Stoffe nach Patent 438221, dadurch gekennzeichnet, daß man dem Dampf bzw. dein Rauch, unmittelbar nach seiner Erzeugung und bevor er elektrisch niedergeschlagen wird, überhitzten Wasserdampf zuführt.PATENT CLAIM: Process for the production of finely divided, especially voluminous substances according to patent 438221, characterized in that the steam or your smoke, immediately after it is generated and before it is electrically precipitated is supplied, superheated steam.
DEG53875D 1921-05-18 1921-05-18 Process for the production of finely divided, particularly voluminous substances Expired DE439509C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG53875D DE439509C (en) 1921-05-18 1921-05-18 Process for the production of finely divided, particularly voluminous substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG53875D DE439509C (en) 1921-05-18 1921-05-18 Process for the production of finely divided, particularly voluminous substances

Publications (1)

Publication Number Publication Date
DE439509C true DE439509C (en) 1927-01-11

Family

ID=7130619

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG53875D Expired DE439509C (en) 1921-05-18 1921-05-18 Process for the production of finely divided, particularly voluminous substances

Country Status (1)

Country Link
DE (1) DE439509C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940110C (en) * 1951-08-04 1956-03-08 Metallgesellschaft Ag Process for the electrical separation of highly insulating dust from gases
DE969532C (en) * 1949-11-01 1958-06-12 Metallgesellschaft Ag Process for the production of metal compounds, in particular metal oxides, in a finely divided state

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969532C (en) * 1949-11-01 1958-06-12 Metallgesellschaft Ag Process for the production of metal compounds, in particular metal oxides, in a finely divided state
DE940110C (en) * 1951-08-04 1956-03-08 Metallgesellschaft Ag Process for the electrical separation of highly insulating dust from gases

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