DE455681C - Production of calcium sulphite liquor - Google Patents
Production of calcium sulphite liquorInfo
- Publication number
- DE455681C DE455681C DEB121706D DEB0121706D DE455681C DE 455681 C DE455681 C DE 455681C DE B121706 D DEB121706 D DE B121706D DE B0121706 D DEB0121706 D DE B0121706D DE 455681 C DE455681 C DE 455681C
- Authority
- DE
- Germany
- Prior art keywords
- production
- tower
- calcium sulphite
- sulphite liquor
- lye
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/62—Methods of preparing sulfites in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
Herstellung von Calciumsuifitlauge. Bisher wurde die Herstellung von Calciumsulfitlauge mit 5° Be schwefliger Säure in zwei mit Kalkbruchsteinen angefüllten Türmen ausgeführt. Am oberen Ende des ersten Turmes wird Wasser über die Bruchsteine geleitet, das auf seinem Wege bis zum Fußende Kalkteilchen löst. Die am Fuße dieses Turmes eingeleiteten Schwefeldioxydgase verbinden sich mit dem herabströmenden Kalkwasser zu Calciumsulfitlauge. Für die Fabrikation der Papiercellulose muß die Lauge 5° B6 schweflige Säure besitzen, was durch Messungen festgestellt wird; besitzt nun die Lauge weniger als 5'B6 schwefliger Säure, so muß die im ersten Turm gebildete Lauge nach dem oberen Ende des zweiten Turmes gepumpt werden, wo sich dieser Vorgang wie im ersten Turm wiederholt.Manufacture of calcium sulphate. So far the production of Calcium sulphite lye with 5 ° Be sulphurous acid in two filled with limestone stones Towers running. At the top of the first tower, water gets over the quarry stones that loosens limestone particles on its way to the foot of the bed. The one at the foot of this Sulfur dioxide gases introduced into the tower combine with the lime water flowing down to calcium sulphite liquor. For the manufacture of the paper cellulose, the lye must be 5 ° B6 have sulphurous acid, which is determined by measurements; owns now If the lye is less than 5'B6 sulphurous acid, then that formed in the first tower must Lye to be pumped to the top of the second tower, where this process takes place as repeated in the first tower.
Aus der Patentschrift 335 orr ist ferner ein Verfahren bekannt, «Tonach Bisulfitlauge von der nötigen Stärke auch in einem Turm hergestellt werden kann. Die nach einmaligem Hindurchführen durch den Turm noch zu schwache Lauge wird nochmals durch Pumpen gehoben, im Turm verdöst und wiederum dem Schwefeldioxydstrom ausgesetzt.A method is also known from the patent specification 335 orr, "Tonach Bisulphite liquor of the necessary strength can also be produced in a tower. The lye, which is still too weak after being passed through the tower once, is again lifted by pumps, doze off in the tower and again exposed to the sulfur dioxide stream.
Im Gegensatz zu dem Bekannten besteht die neue technische Wirkung vorliegenden Verfahrens darin, daß schon bei einmaliger Hindurchführung der Flüssigkeit durch den Turm eine hochgradige Sulfitlauge erhalten wird. Es fällt damit das Überpumpen der schwachen Lauge fort, wodurch an Kosten gespart wird.In contrast to the familiar, there is a new technical effect present method is that even with a single passage of the liquid a high grade sulphite liquor is obtained through the tower. So there is no overpumping the weak liquor continues, which saves costs.
Die Lauge mit weniger als 5'B6 schwefliger Säure sammelt sich im Raum a an, in dem über der Flüssigkeit drei Druckdüsen ä', b", c" in einer Dreieckform (die Anordnung der Düsen kann auch eine andere Form erhalten), die sich gegenüberliegen, angebracht sind und die nach der Druckregelung verdünnte, Calciumsulfit enthaltende Lauge, Wasser und S02-Gase ausstäuben; die Leitungen a', b' und c' nach den Druckdüsen ä', b", c" sind Druckleitungen, die mit je einer Druckpumpe verbunden und bezüglich Abgabe der Mischstoffe regulierbar sind.The lye with less than 5'B6 sulphurous acid collects in space a, in which three pressure nozzles a ', b ", c" in a triangular shape (the arrangement of the nozzles can also have a different shape) above the liquid are opposite, are attached and dust off the calcium sulphite-containing lye, water and SO2 gases that have been diluted after the pressure control; the lines a ', b' and c 'after the pressure nozzles a', b ", c" are pressure lines which are each connected to a pressure pump and can be regulated with regard to the delivery of the mixed materials.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB121706D DE455681C (en) | Production of calcium sulphite liquor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB121706D DE455681C (en) | Production of calcium sulphite liquor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE455681C true DE455681C (en) | 1928-02-08 |
Family
ID=6995581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB121706D Expired DE455681C (en) | Production of calcium sulphite liquor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE455681C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1129138B (en) * | 1961-01-13 | 1962-05-10 | Basf Ag | Process for the production of solutions containing alkali sulphite and / or alkali hydrogen sulphite |
-
0
- DE DEB121706D patent/DE455681C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1129138B (en) * | 1961-01-13 | 1962-05-10 | Basf Ag | Process for the production of solutions containing alkali sulphite and / or alkali hydrogen sulphite |
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