AT70220B - Process for achieving a smooth and uniform distillation in the production of nitric acid. - Google Patents
Process for achieving a smooth and uniform distillation in the production of nitric acid.Info
- Publication number
- AT70220B AT70220B AT70220DA AT70220B AT 70220 B AT70220 B AT 70220B AT 70220D A AT70220D A AT 70220DA AT 70220 B AT70220 B AT 70220B
- Authority
- AT
- Austria
- Prior art keywords
- nitric acid
- achieving
- production
- smooth
- acid
- Prior art date
Links
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims 2
- 238000004821 distillation Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 title claims 2
- 229910017604 nitric acid Inorganic materials 0.000 title claims 2
- 238000004519 manufacturing process Methods 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims 1
- 235000010333 potassium nitrate Nutrition 0.000 claims 1
- 239000004323 potassium nitrate Substances 0.000 claims 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Erzielung einer ruhigen und gleichmässigen Destillation bei der Salpetersäureherstellung.
Beim Abtreiben von Salpetersäure aus Salpeter mit Schwefelsäure oder einer anderen für diese Zwecke geeigneten anorganischen Säure ibt es für die gleichmässige Abtreibung, wie auch für die Schnelligkeit der Operation von sehr grosser Wichtigkeit, dass die Durch- tränkung des verwendeten Salpeters mit der Säure von Anfang an möglichst vollkommen stattfindet. Die meisten Schwierigkeiten und Störungen bei der Salpeters'uureherstellung entstehen dadurch, dass sich in der Retorte Salpeterklumpen bilden, die erst bei höherer femperatur gesprengt werden und dann plötzlich eine sehr starke Reaktion hervorrufen, Todurch sowohl in der Kondenstations- wie in der Absorptionsanlage Verluste entstehen und jedesmal die Kittstellen mehr oder weniger gelöst werden.
Sehr oft kommt es vor, dass die gebildeten Sa1peterJdumpen sich überhaupt nicht lösen und dann beim Ablassen des Bisulfates die Retorte verstopfen und meist erst durch weiteren Treibsäurezusatz gelöst werden müssen. Durch diese zeitraubende Operation wird die Leistungsfähigkeit der Apparatur naturgemäss sehr vermindert.
Diese Übelstände können nun beseitigt werden, wenn man dem Salpeter vor seiner Einführung in die Retorte eine Form gibt, die eine rasche Durchtränkung mit dur Säure ermöglicht. Dies geschieht am besten in der Weise, dass man denselben mit Hilfe einer Brikettmaschino in Kiese1form von etwa 2 bis 3 cm Seitenlange presst. Das Brikettieren des Salpeters macht keine Schwierigkeiten, da sich derselbe sehr leicht zusammenballt. Ein noch ruhigeres Abtreiben der Salpetersäure wird erreicht, wenn man Salpeter vor seiner Brikettierung wenig Schwefelsäure oder Bisulfat zusetzt. Diese Salpeterbriketts können ohne Gefahr auch hei Systemen, wo die Retorte bei der Chargierung noch heiss ist, z.
B. beim System Uebel, nach der Säure eingetragen werden, so dass ein Anschmelzen oder Sintern an die heisse Retortenwand unmöglich wird.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for achieving a smooth and even distillation in the production of nitric acid.
When removing nitric acid from nitric acid with sulfuric acid or another inorganic acid suitable for this purpose, it is of great importance for regular abortion, as well as for the speed of the operation, that the nitric acid used is soaked from the beginning takes place as completely as possible. Most difficulties and malfunctions in the production of nitric acid arise from the fact that nitric lumps form in the retort, which are only broken up at a higher temperature and then suddenly cause a very strong reaction each time the putty is more or less loosened.
Very often it happens that the pumped-up liquid does not dissolve at all and then clogs the retort when the bisulphate is drained and usually first has to be released by adding more propellant acid. This time-consuming operation naturally greatly reduces the performance of the apparatus.
These inconveniences can now be eliminated if the saltpetre is given a shape before it is introduced into the retort, which enables it to be quickly saturated with acid. The best way to do this is to press it with the help of a briquette machine into a gravel shape with a side length of about 2 to 3 cm. Briquetting the saltpetre does not cause any difficulties, since it easily agglomerates. An even quieter expulsion of the nitric acid is achieved if a little sulfuric acid or bisulfate is added to nitric acid before it is briquetted. These saltpeter briquettes can also be used safely in systems where the retort is still hot during charging, e.g.
B. in the bad system, after the acid are entered, so that melting or sintering on the hot retort wall is impossible.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT70220T | 1914-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT70220B true AT70220B (en) | 1915-10-11 |
Family
ID=3592014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT70220D AT70220B (en) | 1914-11-30 | 1914-11-30 | Process for achieving a smooth and uniform distillation in the production of nitric acid. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT70220B (en) |
-
1914
- 1914-11-30 AT AT70220D patent/AT70220B/en active
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