DE281996C - - Google Patents
Info
- Publication number
- DE281996C DE281996C DENDAT281996D DE281996DA DE281996C DE 281996 C DE281996 C DE 281996C DE NDAT281996 D DENDAT281996 D DE NDAT281996D DE 281996D A DE281996D A DE 281996DA DE 281996 C DE281996 C DE 281996C
- Authority
- DE
- Germany
- Prior art keywords
- chromium
- iron
- chlorine
- ores
- chloride
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000460 chlorine Substances 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 150000001805 chlorine compounds Chemical class 0.000 claims description 2
- 239000003638 reducing agent Substances 0.000 claims description 2
- 150000001804 chlorine Chemical class 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- NMCUIPGRVMDVDB-UHFFFAOYSA-L Iron(II) chloride Chemical class Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 3
- 150000001844 chromium Chemical class 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- -1 chromium oxide compound Chemical class 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L Iron(II) sulfate Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K Iron(III) chloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/04—Chromium halides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE Mm. GRUPPECLASS Mm. GROUP
wie Chromeisenstein.like Chromeisenstein.
Patentiert im Deutschen Reiche vom 2. Februar 1913 ab.Patented in the German Empire on February 2, 1913.
Die Chromoxydsalze, welche bekanntlich von größter technischer Bedeutung sind, werden bisher aus Chromerzen, insbesondere Chromeisenstein, Cr2 O3 · Fe O, in der Weise gewonnen, daß man die Erze durch Glühen mit Alkalien an der Luft in Chromat überführt und letzteres nach der Trennung vom ungelösten Eisenoxyd wieder zur Ghromoxydstufe reduziert. Die direkte technische GewinnungThe chromium oxide salts, which are known to be of the greatest technical importance, have hitherto been obtained from chrome ores, in particular chrome iron stone, Cr 2 O 3 · Fe O, in such a way that the ores are converted into chromate by annealing with alkalis in air and the latter after Separation of the undissolved iron oxide again reduced to the chromium oxide level. Direct technical extraction
ίο von Chromoxyd verbin düngen aus Chromerzen in einem einzigen Arbeitsgang unter Vermeidung des Umwegs über die Chromate ist bisher nicht gelungen.ίο from chromium oxide compound fertilize from chromium ores in a single operation while avoiding the detour via the chromates is currently failed.
Es wurde nun gefunden, daß man technisch eisenfreie Chromsalze aus Chromerzen, insbesondere Chromeisenstein, leicht erhalten kann, indem man die Erze bei Anwesenheit eines Reduktionsmittels, wie Kohle, Koks oder Kohlenoxyd u. dgl., bei hoher Temperatur mit Chlor oder Chlorwasserstoff behandelt und die entstehenden Chlorverbindungen des Chroms und Eisens auf Grund ihrer verschiedenen Flüchtigkeit voneinander trennt. Von den bei der Einwirkung von Chlor entstehenden Chloriden des Chroms und Eisens ist das letztere bedeutend flüchtiger als das Chromchlo.rid, welches sich an kälteren Stellen des Apparates getrennt von dem sich später kondensierenden Eisenchlorid niederschlägt. Auch von den durch Chlorwasserstoff gebildeten Salzen verflüchtigt sich das Ferrosalz leicht, während das Chromsalz im Rückstand bleibt. Die entstandenen Chromchloride können in Wasser gelöst und nötigenfalls leicht noch 35 It has now been found that industrially iron-free chromium salts can easily be obtained from chromium ores, in particular chromium iron stone, by treating the ores with chlorine or hydrogen chloride at high temperature in the presence of a reducing agent such as coal, coke or carbon dioxide and the like separates the resulting chlorine compounds of chromium and iron due to their different volatility. Of the chromium and iron chlorides formed by the action of chlorine, the latter is considerably more volatile than the chromium chloride, which precipitates separately from the iron chloride which later condenses in colder parts of the apparatus. The ferrous salt also evaporates easily from the salts formed by hydrogen chloride, while the chromium salt remains in the residue. The resulting chromium chlorides can be dissolved in water and, if necessary, easily 35
4040
4545
weiter gereinigt werden. Man hat zwar schon Gemische von Metalloxyden im Chlorstrom getrennt, auch hat man Chromoxyd für sich durch Behandeln mit Kohle und Chlor in Chromchlorid übergeführt; ferner ist auch bekannt, daß Eisenchlorid flüchtiger ist als Chromchlorid, doch konnte man hieraus nicht entnehmen, daß es möglich sein werde, aus dem spinellartigen Chromeisenstein direkt technisch reine · Chromsalze darzustellen.further cleaned. There are already mixtures of metal oxides in the chlorine stream separately, one also has chromium oxide for itself by treating it with carbon and chlorine in Chromium chloride transferred; it is also known that ferric chloride is more volatile than Chromium chloride, but one could not infer from this that it would be possible to get out to produce technically pure chromium salts directly from the spinel-like chrome iron stone.
10 Teile Chromeisenstein und 20 Teile Koks werden fein pulverisiert und innig gemischt und in einem Strom von Salzsäuregas auf helle Rotglut erhitzt. Das Eisen verflüchtigt sich als Eisenchlorür, der Rückstand gibt beim Behandeln mit Wasser unter Luftzutritt und nach Filtration vom überschüssigen Koks und unangegriffenen Erz eine technisch eisenfreie Lösung von basischem Chromchlorid.10 parts of chrome iron stone and 20 parts of coke are finely pulverized and mixed intimately and heated to bright red heat in a stream of hydrochloric acid gas. The iron evaporates as iron chlorine, the residue gives on treatment with water with the admission of air and after filtration of the excess coke and unaffected ore, a technically iron-free one Solution of basic chromium chloride.
Über hocherhitzten, gepulverten Chromeisenstein wird ein Strom von Kohlenoxyd und Chlor in geeignetem Mischungsverhältnis so lange geleitet, als noch Eisenchlorid entweicht. Das als Rückstand verbleibende wasserfreie, unlösliche .Chromchlorid läßt sich durch Behandeln mit Wasser von löslichen Verunreinigungen befreien und danach auf bekannte Weise in Lösung bringen. Man erhält eine Lösung von normalem Chromchlorid von technisch genügender Reinheit,A stream of carbon dioxide and Chlorine passed in a suitable mixing ratio as long as iron chloride is still escaping. The anhydrous, insoluble chromium chloride remaining as residue can be by treating with water to remove soluble impurities and then to known Way to bring into solution. A solution of normal chromium chloride of technically sufficient purity is obtained,
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE281996C true DE281996C (en) |
Family
ID=537685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT281996D Active DE281996C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE281996C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1135668B (en) * | 1951-03-07 | 1962-08-30 | Walter M Weil | Process for the extraction of chromium and iron from chromium-iron ores |
EP0016516A1 (en) * | 1979-02-21 | 1980-10-01 | Laporte Industries Limited | Process for upgrading iron-containing materials and the product obtained by this process |
-
0
- DE DENDAT281996D patent/DE281996C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1135668B (en) * | 1951-03-07 | 1962-08-30 | Walter M Weil | Process for the extraction of chromium and iron from chromium-iron ores |
EP0016516A1 (en) * | 1979-02-21 | 1980-10-01 | Laporte Industries Limited | Process for upgrading iron-containing materials and the product obtained by this process |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2236633B1 (en) | Method for generating ruthenium from materials or noble metal ore concentrates containing ruthenium or ruthenium oxide | |
DE2501284A1 (en) | PROCESS FOR THE PROCESSING OF MANGANIC NOLLLS AND RECOVERY OF THE RECYCLED SUBSTANCES | |
DE281996C (en) | ||
DE2922235A1 (en) | PROCESS FOR MANUFACTURING COBAL METAL POWDER IN EXTRA FINE CITA SIZE | |
DE547422C (en) | Manufacture of chromates and bichromates | |
AT71808B (en) | Process for the preparation of chromium oxide salts. | |
JPS6247436A (en) | Manufacturing method of high-purity metal chromium | |
DE2852198A1 (en) | EXTRACTION OF CR LOW 2 O LOW 3 FROM A CHROME CONTAINING SOLUTION | |
DE275204C (en) | ||
DE350520C (en) | Process for cleaning tin as well as for the production of tin salts from raw tin | |
DE507151C (en) | Process for digesting titanium ores | |
DE241823C (en) | ||
DE24694C (en) | Innovations in the production of the acidic chromic acid potassium | |
DE2126175A1 (en) | Extraction of metals from the seabed | |
DE274874C (en) | ||
US736400A (en) | Process of making nickel-iron alloys directly from ores. | |
DE383323C (en) | Process for the preparation of solid chromic anhydride | |
AT132384B (en) | Process for the production of practically pure beryllium compounds. | |
DE806137C (en) | Process for the conversion of the poorly soluble oxalates of the rare earths including thorium into more soluble salts | |
DE710049C (en) | Process for breaking down poorly soluble chromium oxide compounds | |
DE919287C (en) | Process for the production of chromates | |
DE514571C (en) | Process for the preparation of iron-free chromium chloride from ferrochrome | |
DE546722C (en) | Process for the extraction of iron from iron ores using elemental chlorine | |
DE133321C (en) | ||
DE636588C (en) | Process for the production of salts of hexavalent chromium |