DE734110C - Process for the purification of alkaline earth and magnesium-containing sols containing essentially sodium chloride - Google Patents
Process for the purification of alkaline earth and magnesium-containing sols containing essentially sodium chlorideInfo
- Publication number
- DE734110C DE734110C DES134803D DES0134803D DE734110C DE 734110 C DE734110 C DE 734110C DE S134803 D DES134803 D DE S134803D DE S0134803 D DES0134803 D DE S0134803D DE 734110 C DE734110 C DE 734110C
- Authority
- DE
- Germany
- Prior art keywords
- magnesium
- sodium chloride
- alkaline earth
- purification
- essentially 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
Links
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 8
- 239000011777 magnesium Substances 0.000 title claims description 8
- 229910052749 magnesium Inorganic materials 0.000 title claims description 8
- 239000011780 sodium chloride Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title description 4
- 238000000746 purification Methods 0.000 title description 3
- 238000001556 precipitation Methods 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000009621 Solvay process Methods 0.000 description 1
- -1 basic Chemical class 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
- C01D3/16—Purification by precipitation or adsorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
Verfahren zur Reinigung erdalkali- und magnesiumhaltiger, im wesentlichen Natriumchlorid enthaltender Solen Die Erfindung betrifft ein Verfahren zur Reinigung erdalkali- und m,agnesiumhaltiger, im wesentlichen _Natriumchlo@rid enthaltender Solen durch Fällung der Erdalkalien und des Magnesiums mit Alkalien. Die neue Arbeitsweise besteht darin, daß. die zu fällende Lösung vor, während oder unmittelbar nach dem Alkalizusatz mit gealterten, gelförmigen Niederschlägen aus vorhergehenden Fällungen geimpft wird.Process for cleaning alkaline earth and magnesium-containing, essentially Sols Containing Sodium Chloride The invention relates to a method for purification alkaline earth and magnesium containing, essentially _sodium chloride containing Brines through the precipitation of alkaline earths and magnesium with alkalis. The new way of working is that. the solution to be precipitated before, during or immediately after Addition of alkali with aged, gel-like precipitates from previous precipitations is vaccinated.
So wird man erfindungsgemäß vor, während oder unmittelbar nach dem Zusatz der fällenden Stoffe bereits gealterte; hasische, gelförmige Magnesiumsalze, wie etwa basisches, gealtertes Magnesiumcarboniatgel, zusetzen. Der Begriff gealtertes Gel wird hier im Sinne der Kolloidchemie verstanden. Damit sind nämlich gemeint Fällungen basischer Al:agnesiumsalze, die in der Mutterlauge längere Zeit gealtert -sind. Bekanntlich treten hierbei irreversible Änderungen im Gel auf. Die bei Gegenwart solcher gealtertenGelegewonnenen Fällungen von Ma-n;esiumisalcen besitzen ihrerseits die gleiche Wirkung wie ein gealtertes Gel.So you will according to the invention before, during or immediately after Addition of precipitating substances already aged; Hasic, gel-like magnesium salts, such as basic, aged magnesium carbonate gel. The term aged Gel is understood here in the sense of colloid chemistry. That is what it means Precipitations of basic Al: agnesium salts which have aged for a long time in the mother liquor -are. It is known that irreversible changes in the gel occur here. The one in the present of such aged gelatinous precipitates of man-n; esium isalcene for their part the same effect as an aged gel.
Die Abscheiden-- vom Ma,gnesiu.mhydroxvd aus magnesitrm- und calciumhaltigen Laugen, zvie solche nach der Entziehung des Broms an verschiedenen Stellen anfallen, ist bekannt. Zu diesem Zwccke wird, nachdem die Lauge mit etwas Kalk zur Ausfällung des Eisens behandelt worden ist, dieselbe nach der Filtration mit einer bereits mit Kalk gefällten Lauge von einer früheren Fällung versetzt, um so Impfkristalle von '.'#lagnesiumhydroxyd in die Lauge zu bekommen. Erst dann wird die Lauge weiter in einen Fällbottich gebracht und mit trockenem Kalk gefällt.The deposits - from Ma, gnesiu.mhydroxvd from magnesite and calcium containing Alkalis, such as those obtained in different places after the bromine has been extracted, is known. For this purpose, after the lye is mixed with a little lime, it is precipitated of iron has been treated, the same after filtration with an already Lye precipitated with lime from an earlier precipitation was added to produce seed crystals of '.' # lagnesium hydroxide in the lye. Only then will the lye continue brought into a felling vat and precipitated with dry lime.
Im Gegensatz dazu betrifft die neue Arbeitsweise nicht direkt die Herstellung von Magnesiumhydroxyd, das seinerseits später auf Magnesium aufgearbeitet werden soll, sondern die Reinigung -ron Natrittmchloridlaugen von Magnesium, da dieses 11lagnesinin im Laufe des Solvayprozesses sich außerordentlich störend bemerkbar macht. Als Fällmittel sind# auch Soda- bzw. Ammoncarbonat vorgesehen;-so daß als Fällungen basisches Magnesiumhydrocarbonat bzw. :%Iagnesiu.mcarboizat in Frage kommt.In contrast, the new way of working does not directly affect the Production of magnesium hydroxide, that in turn later on magnesium should be worked up, but the purification of sodium chloride liquors Magnesium, because this 11lagnesinin is extraordinarily high in the course of the Solvay process makes disturbing noticeable. Soda or ammonium carbonate are also provided as precipitants; that as precipitations basic magnesium hydrocarbonate or:% Iagnesiu.mcarboizat in Question comes.
Ohne die neue Arbeitsweise theoretisch erklären zu können, bleibt wesentlich für sie die Fällung des Mg - --Ions vorzugsweise bei Gegenwart überschüssiger OH'-Ionen unter Zusatz gealterten Gels. Ausführungsbeispiel iooo ccm Kochsalzlösung von 295- NaCl im Liter und einem Gehalt von 1,96- CaO und 1,5o g M-0 als Salze geben bei der g Fällung bei Zimmertemperatuir mit -IS Natriumcarbonat in .etwa 2oo'0iger Lösung oder der äquivalenten Menge Ammonearbonat einen @Ig -Ca-Nieder schlag, der auf'@erordcntlicb. voluminös isst und außerordentlich geringe Absetztendenz zeigt. Erst nach Tagen hat er sich so weit zusammengeballt, daß die überstehende Lösung abdekantiert werden kann.Without being able to explain the new working method theoretically, what remains essential for them is the precipitation of the Mg - ion, preferably in the presence of excess OH 'ions with the addition of aged gel. Embodiment 100 ccm of saline solution of 295 NaCl per liter and a content of 1.96 CaO and 1.5o g M-O as salts give in the g precipitation at room temperature with -IS sodium carbonate in about 2oo% solution or the equivalent Amount of ammonium carbonate a @Ig -Ca precipitate, which is to '@ erordcntlicb. eats voluminously and shows an extremely low tendency to wean. Only after a few days did it clump so much that the supernatant solution can be decanted off.
Dieselbe Fällung, vorgenommen unter Zusatz der bei zwei normalen Versuchen erhaltenen in 5 Tagen gealterten Niederscbllige, gibt einen Niederschlag, der rasch absetzt und in 3 Stunden dekantiert werden kann.The same precipitation made with the addition of that in two normal experiments Precipitation obtained in 5 days aged, gives a precipitate that rapidly settles and can be decanted in 3 hours.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES134803D DE734110C (en) | 1938-12-01 | 1938-12-01 | Process for the purification of alkaline earth and magnesium-containing sols containing essentially sodium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES134803D DE734110C (en) | 1938-12-01 | 1938-12-01 | Process for the purification of alkaline earth and magnesium-containing sols containing essentially sodium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE734110C true DE734110C (en) | 1943-04-09 |
Family
ID=7539819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES134803D Expired DE734110C (en) | 1938-12-01 | 1938-12-01 | Process for the purification of alkaline earth and magnesium-containing sols containing essentially sodium chloride |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE734110C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2339572A1 (en) * | 1976-01-30 | 1977-08-26 | Allied Chem | PROCESS FOR PURIFYING BRINE CONTAINING DISSOLVED IMPURITIES BASED ON STRONTIUM, CALCIUM AND MAGNESIUM, AND NEW PRODUCTS THUS OBTAINED |
| DE3301398A1 (en) * | 1983-01-18 | 1984-07-19 | Chemische Fabrik Kalk GmbH, 5000 Köln | Method of producing soda from the residues obtained in the treatment of crude potassium salts |
| DE3301399A1 (en) * | 1983-01-18 | 1984-07-19 | Chemische Fabrik Kalk GmbH, 5000 Köln | Method of producing soda from the residues obtained in the treatment of crude potassium salts |
-
1938
- 1938-12-01 DE DES134803D patent/DE734110C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2339572A1 (en) * | 1976-01-30 | 1977-08-26 | Allied Chem | PROCESS FOR PURIFYING BRINE CONTAINING DISSOLVED IMPURITIES BASED ON STRONTIUM, CALCIUM AND MAGNESIUM, AND NEW PRODUCTS THUS OBTAINED |
| DE3301398A1 (en) * | 1983-01-18 | 1984-07-19 | Chemische Fabrik Kalk GmbH, 5000 Köln | Method of producing soda from the residues obtained in the treatment of crude potassium salts |
| DE3301399A1 (en) * | 1983-01-18 | 1984-07-19 | Chemische Fabrik Kalk GmbH, 5000 Köln | Method of producing soda from the residues obtained in the treatment of crude potassium salts |
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