DE411529C - Process for the de-iron removal of caustic alkaline solutions - Google Patents
Process for the de-iron removal of caustic alkaline solutionsInfo
- Publication number
- DE411529C DE411529C DEC33109D DEC0033109D DE411529C DE 411529 C DE411529 C DE 411529C DE C33109 D DEC33109 D DE C33109D DE C0033109 D DEC0033109 D DE C0033109D DE 411529 C DE411529 C DE 411529C
- Authority
- DE
- Germany
- Prior art keywords
- alkaline solutions
- iron removal
- iron
- caustic alkaline
- caustic
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 11
- 229910052742 iron Inorganic materials 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- 239000003518 caustics Substances 0.000 title claims description 4
- 239000012670 alkaline solution Substances 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical group 0.000 description 1
- 229910000462 iron(III) oxide hydroxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/28—Purification; Separation
- C01D1/32—Purification; Separation by absorption or precipitation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
Verfahren zur Enteisenung von Ätzalkalilaugen. Technische Ätzalkalilauge, wie sie z. F3. auf elektrolytischem Wege gewonnen wird, enthält stets kleine Mengen von Eisen, die bei manchen technischen Prozessen in hohem Grade störend wirken. Man hat deshalb verschiedentlich versucht, das Eisen aus der Lauge herauszuschaffen.Process for the removal of iron from caustic alkali solutions. Technical caustic lye, how they z. F3. is obtained by electrolytic means, always contains small amounts of iron, which have a highly disruptive effect on some technical processes. Various attempts have therefore been made to get the iron out of the lye.
Das vorliegende Verfahren benutzt die bei Metallsalzlösungen bekannte Erscheinung, das ionisierte Metall durch Behandlung mit geeigneten Metallen von höherem Lösungsdruck zur Ausfällung zu bringen. Es ist bekannt, bei der Herstellung hochkonzentrierter Kalilauge kleine Mengen in Lösung gegangenen Kupfers durch metallische Zusätze auszuscheiden. Ein Analogieschluß auf die vorliegenden Verhältnisse kommt jedoch in Anbetracht der Tatsache, daß sich das Eiseil im Anionrest vielleicht in Form von eisensauren Salzen befindet, nicht in Betracht, ganz abgesehen davon, daß es sich beim Kupfer um einen Spezialfall handelt.The present method uses that known for metal salt solutions Appearance, the ionized metal by treatment with suitable metals of to bring higher solution pressure to the precipitation. It is known in the manufacture Highly concentrated potassium hydroxide solution replaces small amounts of dissolved copper with metallic Eliminate additives. A conclusion by analogy comes to the present situation however, in view of the fact that the ice rope in the anion residue may be in Form of ferric acid salts is not considered, quite apart from the fact that copper is a special case.
Bei der Ausführung des neuen Verfahrens benutzt man zweckmäßig Metalle, wie z. B. Zink oder Aluminium, die infolge ihrer chemischen Eigenschaften sich dem vorliegenden alkalischen System anzupassen vermögen. Beispiel: i 1 Kalilauge von 352 Be wird zweckmäßig unter Rühren und geringer Temperaturerhöhung mit etwa i g Zinkstaub versetzt. Nach weiterem etwa ll_stündigen Rühren und darauffolgendem Absetzenlassen ist die Lauge enteisent und kann abgezogen werden.When carrying out the new process, metals are expediently used, such as. B. zinc or aluminum, which are able to adapt to the present alkaline system due to their chemical properties. Example: i 1 potassium hydroxide solution of 352 Be is expediently mixed with about ig zinc dust with stirring and a slight increase in temperature. After stirring for about 11 hours and then allowing it to settle, the lye has been de-iced and can be drawn off.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC33109D DE411529C (en) | 1923-01-27 | 1923-01-27 | Process for the de-iron removal of caustic alkaline solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC33109D DE411529C (en) | 1923-01-27 | 1923-01-27 | Process for the de-iron removal of caustic alkaline solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE411529C true DE411529C (en) | 1925-03-30 |
Family
ID=7020657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC33109D Expired DE411529C (en) | 1923-01-27 | 1923-01-27 | Process for the de-iron removal of caustic alkaline solutions |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE411529C (en) |
-
1923
- 1923-01-27 DE DEC33109D patent/DE411529C/en not_active Expired
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