DE295921C - - Google Patents
Info
- Publication number
- DE295921C DE295921C DENDAT295921D DE295921DA DE295921C DE 295921 C DE295921 C DE 295921C DE NDAT295921 D DENDAT295921 D DE NDAT295921D DE 295921D A DE295921D A DE 295921DA DE 295921 C DE295921 C DE 295921C
- Authority
- DE
- Germany
- Prior art keywords
- lead
- zinc
- sulfate
- oxide
- oxides
- 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.)
- Active
Links
- 235000014692 zinc oxide Nutrition 0.000 claims description 7
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 claims description 6
- PIJPYDMVFNTHIP-UHFFFAOYSA-L Lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 5
- SCVFZCLFOSHCOH-UHFFFAOYSA-M Potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- CJDPJFRMHVXWPT-UHFFFAOYSA-N Barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 235000011056 potassium acetate Nutrition 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 235000009529 zinc sulphate Nutrition 0.000 claims 1
- 239000011686 zinc sulphate Substances 0.000 claims 1
- 229910000464 lead oxide Inorganic materials 0.000 description 9
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- DJWUNCQRNNEAKC-UHFFFAOYSA-L Zinc acetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O DJWUNCQRNNEAKC-UHFFFAOYSA-L 0.000 description 3
- 239000004246 zinc acetate Substances 0.000 description 3
- 229960001763 zinc sulfate Drugs 0.000 description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 description 3
- GUWSLQUAAYEZAF-UHFFFAOYSA-L Lead(II) acetate Chemical compound O1C(C)=O[Pb]21O=C(C)O2 GUWSLQUAAYEZAF-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229940091251 Zinc Supplements Drugs 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 229940046892 lead acetate Drugs 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229940120347 zinc preparations Drugs 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- 229910000003 Lead carbonate Inorganic materials 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- LILHXQCLSOZSRO-UHFFFAOYSA-J dizinc;oxozinc;dicarbonate;tetrahydrate Chemical compound O.O.O.O.[Zn+2].[Zn+2].[Zn]=O.[Zn]=O.[Zn]=O.[O-]C([O-])=O.[O-]C([O-])=O LILHXQCLSOZSRO-UHFFFAOYSA-J 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001376 precipitating Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/02—Oxides; Hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
KAISERLICHES Λ IMPERIAL Λ
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE Mn. GRUPPECLASS Mn. GROUP
S. E. GOLDSCHMIDT & SOHN in BRESLAU.S. E. GOLDSCHMIDT & SOHN in BRESLAU.
In der österreichischen Patentschrift 47525 ist eine Entbleiung von Zinkpräparaten, welche das Blei in Form von Bleioxyden enthalten, beschrieben. Sie wird so ausgeführt, daß man die Zinkpräparate mit Blei- oder Zinkazetatlösung behandelt, wobei das Blei in Lösung geht.In the Austrian patent specification 47525 a defleading of zinc preparations, which contain the lead in the form of lead oxides. It is carried out like this that the zinc preparations are treated with lead or zinc acetate solution, the lead goes into solution.
Dieses Verfahren ist nur auf wenige der jetzt in großen Mengen direkt aus den Erzen produzierten Zinkoxyde anwendbar, da die meisten derselben das Blei nicht nur in Form von Oxyd, sondern auch als Sulfat, Carbonat USAV. enthalten. Diese Zinkoxyde enthalten außerdem häufig auch noch Zinkcarbonat und -sulfat. Wollte man nach der österreichischen Patentschrift 47525 aus diesen Oxyden das Blei entfernen, so müßten zunächst alle fremden Zinksalze in Zinkoxyd und alles Blei in Bleioxyd übergeführt werden, was nicht immer geschehen kann, ohne die Farbe der Zinkoxyde zu beeinträchtigen. Gemische von Bleioxyd und Bleisulfat können mit Zinkazetat oder Bleiazetat deswegen nicht ausgelaugt Averden, weil die Löslichkeit des Bleisulfates auch in Zinkazetat nicht erheblich genug" ist, und da die Regenerierung der Laugen Schwierigkeiten macht.This process is only available to a few of the now available in large quantities directly from the ores Zinc oxides produced are applicable, since most of the same the lead is not just in the form of oxide, but also as sulfate, carbonate USAV. contain. These contain zinc oxides also often zinc carbonate and sulfate. If you wanted to go to the Austrian Patent 47525 remove the lead from these oxides, all foreign ones would have to be removed first Zinc salts can be converted into zinc oxide and all lead into lead oxide, which is not can always be done without affecting the color of the zinc oxides. Mixtures of Lead oxide and lead sulfate cannot therefore be leached with zinc acetate or lead acetate Averden, because the solubility of lead sulphate in zinc acetate is also not significant enough ", and since the regeneration of the lye makes difficulties.
Es hat sich nun ergeben, daß die mit Bleioxyd bzw. Bleicarbonat verunreinigten Zinkoxyde, die im Falle eines Carbonatgehaites zunächst geglüht'werden, beim Behandeln mit zweckmäßig" heißer Zinksulfatlösung, die auch bei höherer Temperatur, also auch in Druckgefäßen angewendet werden kann, so verändert werden, das alles oder fast alles Bleioxyd in Bleisulfat mit technisch brauchbarer Geschwindigkeit übergeführt wird.It has now been found that those with lead oxide or lead carbonate contaminated zinc oxides, which in the case of a carbonate content first annealed, when treating with expedient "hot zinc sulfate solution," which also can be used at a higher temperature, i.e. also in pressure vessels, so changed that all or almost all of the lead oxide in lead sulfate with technically usable Speed is transferred.
Man kocht zu dem Zwecke die gegebenenfalls geglühten Zinkoxyde einige Zeit mit vorteilhaft überschüssiger Zinksulfatlösung, bis alles oder fast alles vorhandene Bleioxyd verschwunden und in Bleisulfat übergegangen ist. Dann filtriert man ab, wäscht aus und verrührt nun in der Hitze mit Natrium- bzw. Kaliumazetatlösung, wobei das Bleisulfat, wie bekannt, leicht in Lösung geht. Nach dem Abfiltrieren und' Auswaschen erhält man als Endprodukt ein bleifreies oder fast bleifreies Zinkoxyd.For this purpose, the zinc oxides, which may have been annealed, are cooked for some time advantageously excess zinc sulfate solution until all or almost all of the lead oxide is present disappeared and turned into lead sulfate. Then it is filtered off, washed out and stir in the heat with sodium or potassium acetate solution, the lead sulfate, such as known to go into solution easily. After filtering off and washing out, as End product a lead-free or almost lead-free zinc oxide.
Beispielsweise ließe sich so aus einem Zinkrohoxyd mit 18 Prozent Bleioxyd von. deutlich gelber Farbe ein · Produkt mit nur I1Z2 Prozent Bleioxyd schon ohne besonders sorgfältiges Arbeiten erhalten, dessen Farbe wesentlich heller als die des Rohoxydes und dessen Deckkraft gegenüber der des Rohoxydes nicht verändert war. Desgleichen wurde aus einem Zinkrohoxyd mit 61J2 Prozent Bleioxyd ein Endprodukt mit nur 0,2 Prozent Pb O erhalten.For example, a zinc crude oxide with 18 percent lead oxide could be made of. clearly yellow in color, a product with only 1 1 2 per cent lead oxide obtained without particularly careful work, the color of which was considerably lighter than that of the crude oxide and whose opacity was not changed compared to that of the crude oxide. Likewise, an end product with only 0.2 percent Pb O was obtained from a zinc crude oxide with 6 1 I 2 percent lead oxide.
Die abfiltrierte Bleilösung, die außerdem noch Alkalisulfat enthält, wird mit Bariumsulfid behandelt, wobei alles Blei und alle Schwefelsäure ausgefällt wird, während Alkaliazetat in Lösung bleibt, das zur Behände lung neuer Rohoxydmengen benutzt wird..The filtered lead solution, which also contains alkali sulfate, is mixed with barium sulfide treated, precipitating all lead and sulfuric acid, while alkali acetate Remains in solution, which is used to treat new amounts of raw oxide.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE295921C true DE295921C (en) |
Family
ID=550358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT295921D Active DE295921C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE295921C (en) |
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0
- DE DENDAT295921D patent/DE295921C/de active Active
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