DE209909C - - Google Patents
Info
- Publication number
- DE209909C DE209909C DENDAT209909D DE209909DA DE209909C DE 209909 C DE209909 C DE 209909C DE NDAT209909 D DENDAT209909 D DE NDAT209909D DE 209909D A DE209909D A DE 209909DA DE 209909 C DE209909 C DE 209909C
- Authority
- DE
- Germany
- Prior art keywords
- lignite
- sulfur
- sulphate
- sodium
- water
- 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
- 239000011734 sodium Substances 0.000 claims description 13
- 239000003077 lignite Substances 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- 239000002956 ash Substances 0.000 description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 description 7
- 235000011152 sodium sulphate Nutrition 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- -1 sodium sulfate Sulfur Chemical compound 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019749 Dry matter Nutrition 0.000 description 1
- 210000004072 Lung Anatomy 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L Potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- PSGAIMAVBWYMOG-UHFFFAOYSA-N [O-2].[Fe+2].S(O)(O)(=O)=O Chemical compound [O-2].[Fe+2].S(O)(O)(=O)=O PSGAIMAVBWYMOG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 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
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
— JVl 209909 KLASSE 12/. GRUPPE- JVl 209909 CLASS 12 /. GROUP
Die Braunkohle enthält bekanntlich Schwefel _ in größerer oder geringerer Menge, der sowohl in freier wie in gebundener Form vorhanden ist. So weisen die sog. Landkohlen einen Schwefelgehalt bis zu etwa 3 v. H. der Trockensubstanz auf.It is well known that lignite contains sulfur in greater or lesser quantities, both of which is present in free as well as bound form. This is how the so-called country coals show one Sulfur content up to about 3 percent. H. the dry matter on.
Z.B. Landkohle
Grube Marie Grube Sophie Atzendorf WolmirslebenEg land coal
Marie mine Sophie Atzendorf mine Wolmirsleben
Gesamtschwefel .... 2,90 v. H. 2,93 v. H.
Freier Schwefel . . . . i,86 - 1,82Total sulfur .... 2.90 v. H. 2.93 v. H.
Free sulfur. . . . i, 86-1.82
Gebundener Schwefel 1,04 - 1,11Bound sulfur 1.04 - 1.11
Bisher war die Nutzbarmachung desSchwefelgehaltes der Braunkohlen auf die Umwandlung des in ihnen enthaltenen Schwefelkieses in schwefelsaures Eisenoxydul und schwefelsaure Tonerde beschränkt, indem man die schwefelkieshaltige Braunkohle auf Halden häufte und dem Einfluß der Atmosphärilien überließ, worauf man die gebildeten Sulfate mit Wasser auszog. (Muspratt, Encyklopäd. Handbuch der Technischen Chemie, IV. Aufl., 4. Band [1893], Spalte 455.)So far the utilization of the sulfur content was of lignite on the conversion of the pyrites contained in them into sulfuric acid iron oxide and sulfuric acid Alumina limited by heaped lignite containing sulphurous lignite on heaps and the influence of the atmosphere left, whereupon the sulfates formed were extracted with water. (Muspratt, Encyclopedia. Handbuch der Technischen Chemie, IV. Edition, Volume 4 [1893], Column 455.)
Es wurde gefunden, daß der Schwefelgehalt der Braunkohle dadurch, daß man sie dem Schwelprozeß unterzieht, zu einem großen Teile als Natriumsulfat gewonnen werden kann.It has been found that the sulfur content of the lignite by adding it to the Smoldering process undergoes, can be obtained to a large extent as sodium sulfate.
So z. B. ergaben die obigen Landkohlen nach gründlichem Schwelen mit Wasser ausgelaugt: So z. For example, after thorough smoldering with water, the above country coals gave:
Na2 S O„ Na 2 S O "
Na2 C O3 2,397 ν. Η.
0,172 -
Na Cl o,ii7 Na 2 C O 3 2.397 ν. Η.
0.172 -
Na Cl o, ii 7
oder auf Asche berechnet:or calculated on ashes:
Na2 S O4 Na2 C O3 NaCl 22,20 Na 2 S O 4 Na 2 C O 3 NaCl 22.20
i,59
1,08i, 59
1.08
v. H.v. H.
o,334
2,650o, 334
2,650
0,3900.390
3.313.31
20,2020.20
3,o83, o8
v. H.v. H.
v. H.v. H.
4545
Im wasserunlöslichen Teile war noch vorhanden ein Schwefelgehalt entsprechend 1,75 und 2,78 v. H. S O3. Durch nachfolgende Verbrennung der geschwelten Kohlen können diese restlichen Schwefelmengen zur Reaktion mit dem vorhandenen Natriumcarbonat und Natriumchlorid gebracht werden unter Bildung von Natriumsulfat:A sulfur content corresponding to 1.75 and 2.78% was still present in the water-insoluble part. H. SO 3 . Subsequent incineration of the charcoal can cause these remaining amounts of sulfur to react with the sodium carbonate and sodium chloride present to form sodium sulfate:
Na2CO3+ SO2 + O = CO2 Na 2 CO 3 + SO 2 + O = CO 2
Na2 CO3 Na 2 CO 3
SO3 = Na2 S O4 + CO2 SO 3 = Na 2 S O 4 + CO 2
2NaCl + S O2 + O + H2O = Na2SO4 + 2 H Cl. 2NaCl + SO 2 + O + H 2 O = Na 2 SO 4 + 2 H Cl.
Die dargelegte, bisher unbekannte Wirkung des Schwelens auf den Schwefelgehalt der Braunkohle bietet ein sehr vorteilhaftes Mittel zur technischen Ausnutzung des Schwefel-55 The previously unknown effect of smoldering on the sulfur content of the Lignite offers a very advantageous means for the technical exploitation of sulfur-55
6060
gehaltes von Braunkohlen behufs Gewinnung von Natriumsulfat, indem man sie zur Herstellung einer an Natriumsulfat reichen Braunkohlenasche verwertet, der man den Natrium-the content of lignite for the purpose of obtaining sodium sulphate by using it for manufacture a lignite ash rich in sodium sulphate, which is used to produce the sodium
sulfatgehalt durch Auslaugen mit Wasser entzieht, wie dies z. B. für die Gewinnung von Soda aus der Asche der sog. Salzpflanzen und von Kaliumsulfat aus der Asche von meerbewohnenden Pflanzen, insbesondere Fukusarten, seit langem bekannt ist. (Lunge, Soda-Industrie, II. Aufl., 2. Band [1894], S. 68 bis 70.)Removed sulfate content by leaching with water, as z. B. for the extraction of Soda from the ashes of the so-called salt plants and potassium sulphate from the ashes of sea-dwelling plants Plants, especially Fukusarten, has long been known. (Lungs, soda industry, II. Ed., Volume 2 [1894], pp. 68 to 70.)
Hiernach besteht die vorliegende Erfindung darin, daß man zur Gewinnung von Natriumsulfat aus Braunkohle schwefelhaltige Braunkohle vor der Veraschung gründlich abschwelt. Der Verbrennungsrückstand- wird mit Wasser ausgelaugt, sehr zweckmäßig systematisch in folgender Weise:Accordingly, the present invention consists in the fact that to obtain sodium sulfate Sulfur-containing lignite from lignite is thoroughly degassed before incineration. The combustion residue is leached out with water, very useful systematically in in the following way:
Die feingemahlene und gesichtete Asche wird mit Wasser von 30 bis 400 C. kurze Zeit innig angerührt und filtriert; dies ergibt bereits eine sulfatreiche Lauge, die bei Verwendung zum Auslaugen von weiteren Aschenmengen sich immer mehr mit Natriumsulfat anreichert. Das Lösewasser wirkt einerseits, indem es die Sulfide, Sulfite, Thionate, Chloride usw. löst, anderseits aber die vorhandenen Oxyde teilweise in Hydrate überführt, welche auf die Sulfatlauge reinigend einwirken können. Das vorhandene Calciumsulfat findet sich in den Aschenausläugerückständen als Bodensatz vor. So wurde nach diesem Verfahren eine Sulfatlauge von nachstehender Zusammensetzung erzeugt :The finely ground and sifted ash is intimately mixed with water at 30 to 40 ° C. for a short time and filtered; this already results in a sulphate-rich lye which, when used to leach out further quantities of ash, becomes more and more enriched with sodium sulphate. On the one hand, the dissolving water works by dissolving the sulphides, sulphites, thionates, chlorides, etc., but on the other hand, it partially converts the oxides present into hydrates, which can have a cleaning effect on the sulphate liquor. The existing calcium sulfate is found in the ash leach residue as a sediment. Using this process, a sulphate liquor with the following composition was produced:
31° Be. — 1,27 spec. Gew.31 ° Be. - 1.27 spec. Weight
Diese Lauge kann direkt zur Kristallisation gebracht werden oder vorteilhaft auf wasserfreies Natriumsulfat verarbeitet werden. Unter Vakuum verdampft, erhielt man folgendes Endprodukt:This lye can be brought to crystallization directly or, advantageously, to anhydrous Sodium sulfate can be processed. Evaporated under vacuum, the following end product was obtained:
95,57 v. H-. Na2 S O4, 0,11 - NaCl,, 0,14 - Na2S, 4,18 - H2O,95.57 BC H-. Na 2 S O 4 , 0.11 - NaCl ,, 0.14 - Na 2 S, 4.18 - H 2 O,
was einem technisch reinen Natriumsulfat gleichkommt.which is equivalent to a technically pure sodium sulfate.
Der ausgelaugte ' lufttrockene Aschenrückstand bildet ein grünliches, leicht streubares Material, das, wie seine Zusammensetzung ergibt, vorteilhaft als Düngekalk usw. verwendet werden kann.The leached, air-dry ash residue forms a greenish, easily spreadable Material which, as its composition shows, advantageously used as fertilizer lime, etc. can be.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE209909C true DE209909C (en) |
Family
ID=471843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT209909D Active DE209909C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE209909C (en) |
-
0
- DE DENDAT209909D patent/DE209909C/de active Active
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