DE478987C - Process for the continuous production of dry sodium sulfate from Glauber's salt - Google Patents

Process for the continuous production of dry sodium sulfate from Glauber's salt

Info

Publication number
DE478987C
DE478987C DER62194D DER0062194D DE478987C DE 478987 C DE478987 C DE 478987C DE R62194 D DER62194 D DE R62194D DE R0062194 D DER0062194 D DE R0062194D DE 478987 C DE478987 C DE 478987C
Authority
DE
Germany
Prior art keywords
glauber
salt
sodium sulfate
continuous production
dry sodium
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
DER62194D
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.)
WALDEMAR RECHA DIPL ING
Original Assignee
WALDEMAR RECHA DIPL ING
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 WALDEMAR RECHA DIPL ING filed Critical WALDEMAR RECHA DIPL ING
Priority to DER62194D priority Critical patent/DE478987C/en
Application granted granted Critical
Publication of DE478987C publication Critical patent/DE478987C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/18—Dehydration

Description

Verfahren zur kontinuierlichen Herstellung von trockenem Natriumsulfat aus Glaubersalz Es ist bekannt, daß Glaubersalz beim Trocknen zu Natriumsulfat große Schwierigkeiten bietet, dadurch, daß es schmiert und Klumpen bildet. Es ist bekannt, daß Na2S04. 1o H20 (Glaubersalz) beim Erhitzen auf 3a,4° C wasserfreies Natriumsulfat ausscheidet, das - sich ohne Schwierigkeiten trocknen läßt. Diese bekannte Tatsache macht sich nachfolgendes Verfahren zu Nutzen.Process for the continuous production of dry sodium sulfate from Glauber's salt It is known that Glauber's salt presents great difficulties in drying to sodium sulfate in that it smears and forms lumps. It is known that Na2S04. 1o H20 (Glauber's salt) when heated to 3 a, 4 ° C anhydrous sodium sulphate precipitates, which - can be dried without difficulty. The following method makes use of this known fact.

Bei an sich bekannten rotierenden Filtern wird in dem Filtertrog, aus dem sich die Filtertrommel ihr Material saugt, das kontinuierlich eingetragene Glaubersalz mit üb- lichen Mitteln erhitzt, oder es wird ihm bereits erhitzt zugeführt. Das sich über 3a,4° C ausscheidende wasserfreie Natriumsulfat wird durch ein im Filtertrog an sich bekanntes Rührwerk verhindert, sich zu Boden zu setzen. Dieses Gemenge von Mutterlauge und wasserfreiem Natriumsulfat wird auf dem rotierenden Filter abgesaugt. Der Filterkuchen, bestehend aus wasserfreiem Natriumsulfat, wird nach dem Entfernen von der Filtertrommel, das in bekannter Weise geschieht, auf üb-lichem Wege zu einer Trockentrommel gebracht, wo es keine Schwierigkeiten obenerwähnter Art mehr beim Trocknen bietet, es schmiert nicht mehr, so daß es sogar in Zellentrocknern getrocknet werden kann. In rotating filters known per se , in the filter trough from which the filter drum sucks its material, the continuously introduced Glauber's salt is heated by conventional means, or it is supplied to it already heated. The anhydrous sodium sulphate which separates out above 3 a, 4 ° C is prevented from settling on the ground by a stirrer known per se in the filter trough. This mixture of mother liquor and anhydrous sodium sulfate is sucked off on the rotating filter. The filter cake, consisting of anhydrous sodium sulfate, is brought, after removal of the filter drum, this is done in a known manner ü b -lichem paths to a drying drum where there is no difficulty in the above-mentioned type more during drying, it does not smear more, that it can even be dried in cell dryers.

Durch dieses kombinierte Verfahren isst -es möglich, ohne Schwierigkeiten große Mengen Glaubersalz zu entwässern und wasserfreies Natriumsulfat auf kontinuierlichem Wege herzustellen.With this combined process, it is possible to eat without difficulty To dehydrate large amounts of Glauber's salt and anhydrous sodium sulfate on continuous To make ways.

Claims (1)

P:1TENTANSYRUCll: Verfahren zur kontinuierlichen Herstellung von trockenem Natriumsulfat aus Glaubersalz, bei welchem das Glaubersalz im Filtertrog eines rotierenden Filters @erhitzt oder diesem mit einer Temperatur von über 3z,4° C zugeführt wird, dadurch gekennzeichnet, daß das sich ausscheidende wasserfreie Natriumsulfat nachdem Abnutschen einer Trockentrommel zugeführt wird.P: 1TENTANSYRUCll: Process for the continuous production of dry Sodium sulphate from Glauber's salt, which contains the Glauber's salt in a rotating filter trough Filter @ is heated or fed to it at a temperature of over 3z.4 ° C, characterized in that the precipitating anhydrous sodium sulfate after Suction is fed to a drying drum.
DER62194D 1924-10-04 1924-10-04 Process for the continuous production of dry sodium sulfate from Glauber's salt Expired DE478987C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER62194D DE478987C (en) 1924-10-04 1924-10-04 Process for the continuous production of dry sodium sulfate from Glauber's salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER62194D DE478987C (en) 1924-10-04 1924-10-04 Process for the continuous production of dry sodium sulfate from Glauber's salt

Publications (1)

Publication Number Publication Date
DE478987C true DE478987C (en) 1929-07-08

Family

ID=7411853

Family Applications (1)

Application Number Title Priority Date Filing Date
DER62194D Expired DE478987C (en) 1924-10-04 1924-10-04 Process for the continuous production of dry sodium sulfate from Glauber's salt

Country Status (1)

Country Link
DE (1) DE478987C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE853493C (en) * 1945-07-18 1952-10-23 Courtaulds Ltd Process for the recovery of anhydrous sodium sulphate from spent viscose hair balls
DE853937C (en) * 1948-07-02 1952-10-30 Courtaulds Ltd Process and device for the extraction of anhydrous sodium sulfate from raw Glauber's salt crystallized from used viscose spinning balls, optionally with simultaneous recovery of the spinning balls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE853493C (en) * 1945-07-18 1952-10-23 Courtaulds Ltd Process for the recovery of anhydrous sodium sulphate from spent viscose hair balls
DE853937C (en) * 1948-07-02 1952-10-30 Courtaulds Ltd Process and device for the extraction of anhydrous sodium sulfate from raw Glauber's salt crystallized from used viscose spinning balls, optionally with simultaneous recovery of the spinning balls

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