DE171962C - - Google Patents
Info
- Publication number
- DE171962C DE171962C DENDAT171962D DE171962DA DE171962C DE 171962 C DE171962 C DE 171962C DE NDAT171962 D DENDAT171962 D DE NDAT171962D DE 171962D A DE171962D A DE 171962DA DE 171962 C DE171962 C DE 171962C
- Authority
- DE
- Germany
- Prior art keywords
- zinc
- sulphate
- content
- magnesium
- sulphate content
- 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
- CSNNHWWHGAXBCP-UHFFFAOYSA-L mgso4 Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 11
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 8
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 7
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 7
- 239000011686 zinc sulphate Substances 0.000 claims description 6
- 235000009529 zinc sulphate Nutrition 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 2
- PFWOIQRTXYOJSE-UHFFFAOYSA-J magnesium;zinc;disulfate Chemical compound [Mg+2].[Zn+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O PFWOIQRTXYOJSE-UHFFFAOYSA-J 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 229940091251 Zinc Supplements Drugs 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L Magnesium hydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 3
- 239000011507 gypsum plaster Substances 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- UGZADUVQMDAIAO-UHFFFAOYSA-L Zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 229940007718 zinc hydroxide Drugs 0.000 description 2
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 210000004080 Milk Anatomy 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxyl anion Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- -1 stockpile material) Chemical compound 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Vorliegende Erfindung bezieht sich auf die Gewinnung von Zink in Form von' Zinkhydroxyd aus mehr oder weniger mit Magnesiumsulfat verunreinigten Zinksulfatlösungen, wie solche z. B. durch Auslaugen von magnesiahaltigen Zinkerzen (eingeschlossen Haldengut), Hüttenprodukten, Kiesabbränden und dergl. mit Schwefelsäure erhalten werden.The present invention relates to the recovery of zinc in the form of zinc hydroxide from more or less contaminated with magnesium sulfate zinc sulfate solutions, such as such. B. by leaching of zinc ores containing magnesia (including stockpile material), metallurgical products, gravel burns and the like with sulfuric acid.
ίο Als Fällmittel. für dergleichen Lösungen diente bisher Ätzalkali, indem die VerVendung des billigeren Ätzkalkes infolge der geringen Wasserlöslichkeit des sich bildenden Gipses ausgeschlossen erscheinen mußte.ίο As a precipitant. for the same solutions served so far caustic alkali by the use of the cheaper caustic lime as a result of the low water solubility of the plaster of paris formed had to appear excluded.
Vorliegende Erfindung ermöglicht dagegen, die an sich bekannte Fällung mittels Ätzkalkes in so vorteilhafter Weise auszuführen, daß ein unmittelbar zur Zinkdestillation brauchbarer Niederschlag erhalten wird.The present invention, however, enables the per se known precipitation by means of To carry out quick lime in such an advantageous manner that a direct zinc distillation useful precipitate is obtained.
Sie gründet sich auf die. Entdeckung, daß, wenn das Zinksulfat sich etwa der gleichen Menge Magnesiumsulfat gegenüber findet, etwa die Hälfte der dem Gesamtsulfatgehalt entsprechenden Ätzkalkmenge genügt, um die Hauptmenge des Zinksulfates in Hydroxyd umzusetzen, und daß, wenn gleichzeitig Wasser in erheblicher Menge gegenwärtig ist, der gebildete Gips zum größeren Teile in Lösung geht; zugleich findet man auch, daß dieIt is based on the. Discovery that when the zinc sulfate is about the same Amount of magnesium sulphate, about half of the amount of quicklime corresponding to the total sulphate content is sufficient to achieve the To convert the bulk of the zinc sulfate into hydroxide, and that, if at the same time water is present in considerable quantities, the plaster of paris formed to a large extent in solution goes; at the same time one also finds that the
30' Fällung von Magnesiumhydroxyd gering ist. Der Magnesiumsulfatgehalt darf den Zinksulfatgehalt auch überschreiten.30 'precipitation of magnesium hydroxide is low. The magnesium sulphate content may exceed the zinc sulphate content also exceed.
Es ist auf dieseWeise gelungen, Niederschläge zu erzielen, welche einen Zinkhydroxydgehalt von etwa-50Prozent neben so geringen Mengen von Gips aufweisen, daß sie unmittelbar zur . Zinkdestillation verwertet werden können.In this way it has been possible to obtain precipitates which contain zinc hydroxide of about -50 percent in addition to such small amounts of plaster of paris show that they are directly to. Zinc distillation can be recycled.
Die Erfinderin erklärt sich die unerwartete Wirkung damit, daß einerseits ein Teil des entstehenden Magnesiumhydroxydes im . Entstehungsaugenblick sich mit Zinksulfat umsetzt, andererseits daß Gips in verdünnter Magnesiumsulfatlösung leichter löslich ist.The inventor explains the unexpected effect that on the one hand part of the resulting magnesium hydroxide in. Instant of formation reacts with zinc sulphate, on the other hand that gypsum is more easily soluble in dilute magnesium sulfate solution.
Demnach besteht die vorliegende Erfindung darin, daß man die Zusammensetzung der Zink- und Magnesiumsulfatlösung in der Art regelt, daß ihr Magnesiumsulfatgehalt den Zinksulfatgehalt nicht wesentlich unterschreitet, am zweckmäßigsten ihm gleichkommt, ihn jedoch überschreiten darf, und die so zusammengesetzte Lösung mit etwa der Hälfte der ihrem Gesamtsulfatgehalt entsprechenden Menge Ätzkalk in Form einer stark verdünnten Milch fällt.Accordingly, the present invention consists in that the composition of the Zinc and magnesium sulphate solution in such a way that their magnesium sulphate content regulates the Zinc sulphate content is not significantly below, most suitably equals it, however, it may exceed it, and the solution thus composed with about half of its total sulphate content Amount of quicklime falls in the form of a very diluted milk.
Wird gewünscht, den Zinkgehalt des Niederschlages anzureichern, so kann man letzteren (in bereits von der Erfinderin vorgeschlagener Weise) zur Fällung einer frischen Menge Lösung benutzen, wobei sein Gehalt an Magnesiumhydroxyd sich mit dem Zinkgehalt jener umsetzt..If you want to enrich the zinc content of the precipitate, you can the latter (in a manner already proposed by the inventor) to precipitate a Use a fresh amount of solution, its magnesium hydroxide content varying with the Zinc content that converts ..
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE171962C true DE171962C (en) | 1900-01-01 |
Family
ID=436892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT171962D Expired DE171962C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE171962C (en) |
-
0
- DE DENDAT171962D patent/DE171962C/de not_active Expired
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