DE441563C - Process for the production of loose table salt from rock salt - Google Patents

Process for the production of loose table salt from rock salt

Info

Publication number
DE441563C
DE441563C DEG61790D DEG0061790D DE441563C DE 441563 C DE441563 C DE 441563C DE G61790 D DEG61790 D DE G61790D DE G0061790 D DEG0061790 D DE G0061790D DE 441563 C DE441563 C DE 441563C
Authority
DE
Germany
Prior art keywords
salt
production
rock
loose table
rock salt
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
DEG61790D
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.)
FRITZ WIENERT DR
GEWERKSCHAFT BURBACH
Original Assignee
FRITZ WIENERT DR
GEWERKSCHAFT BURBACH
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 FRITZ WIENERT DR, GEWERKSCHAFT BURBACH filed Critical FRITZ WIENERT DR
Priority to DEG61790D priority Critical patent/DE441563C/en
Application granted granted Critical
Publication of DE441563C publication Critical patent/DE441563C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00Halides of sodium, potassium or alkali metals in general
    • C01D3/26Preventing the absorption of moisture or caking of the crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Description

Verfahren zur Herstellung von lockerem Speisesalz aus Steinsalz.Process for the production of loose table salt from rock salt.

Gemahlenes Steinsalz hat die lästige Eigenschaft, beim Lagern zu Klumpen zusammenzubacken, die sich nur schlecht zerstoßen lassen. Dieses Klumpen läßt sich durch ein dauerndes Feuchthalten verhindern. Es wurde bisher durch Befeuchten mit Wasser oder mit Lösungen hygroskopischer Salze oder durch Zusatz von Calcium- bzw. Magnestumchlorid in fester Form erreicht. Dasselbe Ergebnis kann man durch Zusatz von Magnesiumsulfat erzielen, das im fertigen Salz durch Umsetzungen Magnesiumchlorid erzeugt. Ground rock salt has the annoying property of clogging when stored To bake up lumps that are difficult to crush. This lump can be prevented by keeping it permanently moist. It was previously made by wetting with water or with solutions of hygroscopic salts or by adding calcium or Magnestum chloride achieved in solid form. You can get the same result through Achieve the addition of magnesium sulfate, the magnesium chloride in the finished salt by reactions generated.

Abgesehen von der bequemeren Handhabung des nicht zerfließlichen Bittersalzes bei der Fabrikation, erreicht es die beabsichtigte Wirkung insofern besser und gleichmäßiger als einfache hygroskopische Zusätze, da es gleichzeitig Schwankungen der Salzfeuchtigkeit infolge wechselnder Luftfeuchtigkeit ausgleicht, wie es die bisher angewandten hygroskopischen Mittel nicht tun. Außerdem steht es manchen Steinsalzschächten, die Hartsalz für die Chlorkaliumfabrikation fördern, als Nebenprodukt dabei leichter zur Verfügung als Magnesiumchlorid. Die Erklärung für sein chemisches Verhalten ist folgende: Magnesiumsulfat setzt sich mit Chlornatrium um, z. B. bei gewöhnlicher Temperatur nach der Gleichung: 2 MgSO4 7 H20 + 2 NaCl + XH2O = Na2S04 @ MgSO4. 4 H2O t MgCl2xH2O Bittersalz Astrakanit Lauge Ist die dabei entstehende Lauge an Bittersalz, Astrakanit und Chlornatrium gesättigt, so hat sie z.B. bei I5,3" die Zusammensetzung in Molen: Iooo HO, 21,05 NaCl2, 34,52 MgCli, und 15,21 MgSO4. SolI dem Speisesalz bei der Fabrikation ein bestimmter Feuchtigkeitsgehalt mitgegeben werden, so ist höchstens so viel Bittersalz hinzuzufügen, daß Sättigung dieser Feuchtigkeitsmenge nach obiger Angabe ungefähr erreicht wird, da mehr Bittersalz sonst unverändert und wirltungslos als festes Salz beigemengt bleiben würde. Wird dann bei feuchter Luft mehr Wasser angezogen, so wird der gebildete Astrakanit unter Rückbildung von in Lösung gehendem Magnesiumsulfat aufgezehrt, so daß das hygroskopische Chlormagnesium verschwindet. Apart from the more convenient handling of the non-dissolving Epsom salt during manufacture, it achieves the intended effect in this respect better and more even than simple hygroscopic additives, since it is at the same time Compensates for fluctuations in salt moisture as a result of changing air humidity, as the previously used hygroscopic agents do not. Besides, it stands some rock salt pits that mine hard salt for the production of potassium chlorine, more readily available as a by-product than magnesium chloride. The explanation for its chemical behavior is the following: Magnesium sulfate combines with sodium chloride around, e.g. B. at ordinary temperature according to the equation: 2 MgSO4 7 H20 + 2 NaCl + XH2O = Na2S04 @ MgSO4. 4 H2O t MgCl2xH2O Epsom salt astrakanite lye is included The resulting lye is saturated with Epsom salt, astrakanite and sodium chloride, so it has E.g. at I5.3 "the composition in moles: Iooo HO, 21.05 NaCl2, 34.52 MgCli, and 15.21 MgSO4. Should the table salt have a certain moisture content during manufacture are given, so much Epsom salt should be added at most that saturation this amount of moisture is approximately reached according to the above, because more Epsom salt otherwise unchanged and inactive would remain added as solid salt. Will If more water is then attracted in moist air, the astrakanite formed is underneath Formation of dissolving magnesium sulfate is consumed, so that the hygroscopic Magnesium chlorine disappears.

Im umgekehrten Falle, wenn Feuchtigkeit bei trockener Luft aus dem Speisesalz verdunstet, wird die an den Chlornatriumkristallen anhaftende Lösung unter Astrakanitbildung immer chlormagnesiumreicher und damit hygroskopischer. Daher wirkt der Zusatz an Magnesiumsulfat als Ausgleicher für die Feuchtigkeitsschwankungen.In the opposite case, if moisture in dry air from the Table salt evaporates, the solution adhering to the sodium chloride crystals becomes with formation of astrakanite, always richer in magnesium chloride and thus more hygroscopic. Therefore the addition of magnesium sulphate acts as a counterbalance for the fluctuations in humidity.

Die Verwendung von entwässertem Magnesiumsulfat, insbesondere auch von Kireserit zur Verhinderung des Zusammenbacliens von Salzen ist bekannt, dieselbe beruht aber im Gegensatz zu der vorliegenden Erfindung auf der Bindung von Wasser dArc'h das entwässerte oder wasserarme Salz unter allmählichem Übergang in Bittersalz, so daß ein Feuchtwerden und damit ein Zusammenbacken vermieden wird. The use of dehydrated magnesium sulfate, in particular, too from Kireserit to prevent the agglomeration of Salting is known, but in contrast to the present invention, the same is based on the Binding of water dArc'h the dehydrated or water-poor salt under gradual Transition to Epsom salt, so that it does not become damp and thus prevents it from sticking together will.

Claims (1)

P A T E N T A N S P R U C H : Verfahren zur Herstellung von lockerem Speisesalz aus Steinsalz, dadurch gekennzeichnet, daß dem Steinsalz geringe Mengen Magnesiumsulfat zugesetzt werden. P A T E N T A N S P R U C H: Method of making loose Table salt made from rock salt, characterized in that the rock salt contains small amounts Magnesium sulfate can be added.
DEG61790D 1924-07-11 1924-07-11 Process for the production of loose table salt from rock salt Expired DE441563C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG61790D DE441563C (en) 1924-07-11 1924-07-11 Process for the production of loose table salt from rock salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG61790D DE441563C (en) 1924-07-11 1924-07-11 Process for the production of loose table salt from rock salt

Publications (1)

Publication Number Publication Date
DE441563C true DE441563C (en) 1927-03-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEG61790D Expired DE441563C (en) 1924-07-11 1924-07-11 Process for the production of loose table salt from rock salt

Country Status (1)

Country Link
DE (1) DE441563C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759666C (en) * 1941-04-04 1952-12-15 Ig Farbenindustrie Ag Dispersible de-icing agent containing sodium chloride for removing black ice and slippery snow on roads
DE1188639B (en) * 1961-03-16 1965-03-11 Schroeder Eisenwerk Method for spreading de-icing salt on traffic areas by means of a spreading device and device for carrying out the method, which allows the dosed spreading of the de-icing salt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759666C (en) * 1941-04-04 1952-12-15 Ig Farbenindustrie Ag Dispersible de-icing agent containing sodium chloride for removing black ice and slippery snow on roads
DE1188639B (en) * 1961-03-16 1965-03-11 Schroeder Eisenwerk Method for spreading de-icing salt on traffic areas by means of a spreading device and device for carrying out the method, which allows the dosed spreading of the de-icing salt

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