SU800128A2 - Method of sulfuric acid purification - Google Patents
Method of sulfuric acid purification Download PDFInfo
- Publication number
- SU800128A2 SU800128A2 SU772518399A SU2518399A SU800128A2 SU 800128 A2 SU800128 A2 SU 800128A2 SU 772518399 A SU772518399 A SU 772518399A SU 2518399 A SU2518399 A SU 2518399A SU 800128 A2 SU800128 A2 SU 800128A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulfuric acid
- acid purification
- acid
- sulfuric
- water
- Prior art date
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Description
(54) СПОСОБ ОЧИСТКИ СЕРНОЙ КИСЛОТЫ(54) METHOD FOR CLEANING SULFURIC ACID
В течение 5 ч через колонку, содержащую нагреваемый слой насадки, состо щий из частиц силикагел АСМ размером 0,5-1,0 пропускают сер ную кислоту 95%-ной концентрации со скоростью 45 мл/ч. Исходна кислота содержит примесиСи, Са, М, Ре, Мог, Мп , ,, Сг, и т.д.1.10 масс. а легколетучие вешества, восстанавливающие KMnQj,- 1. .% Высота сло насадки 150 мм, диаметр 45 мм. Пар, образующийс в нижней части сло насадки, перегреваетс до 400°С и разлагаетс на серный ангидрид н воду. Далее Продукты разложени в в-иде н а11равленно.го восход щего потекла пЬд-ают противотоком стекающей пленке под давлением 610 мм. рт.ст. При этой серный ангидрид и вода, попада на поверхность стекающей пленки, вступают в реакцию синтеза, тепловой, эффект которой приводит к локальному повышению температуры указанной поверхности контакта фаз и при этом веро тность захвата легколетучих примесей пленкой чистого продукта сводитс к минимуму.For 5 hours, sulfuric acid of 95% concentration is passed through a column containing a heated nozzle layer consisting of particles of silica gel AFM 0.5-1.0 in size at a rate of 45 ml / h. The original acid contains impurities C, Ca, M, Fe, Could, Mn, ,, Cr, etc. 1.1.10 masses. and volatile substances that restore KMnQj, - 1..% The height of the packing layer is 150 mm, diameter is 45 mm. The vapor formed at the bottom of the packing layer is superheated to 400 ° C and decomposed into sulfuric anhydride and water. Further, the decomposition products in the in-iod aravravlenno.go upward flowed by the flow of a countercurrent flowing film under pressure of 610 mm. Hg With this, sulfuric anhydride and water, falling on the surface of the flowing film, enter into a synthesis reaction, thermal, the effect of which leads to a local increase in the temperature of the specified surface of the contact phase and, at the same time, the likelihood of the capture of volatile impurities by the film of the pure product is minimized.
в результате получают кислоту с содержанием катионов 1 10 -1 10 масс. легколетучих примесей 1 . % .the result is an acid with a cation content of 1 10 -1 10 mass. volatile impurities 1. %
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772518399A SU800128A2 (en) | 1977-08-08 | 1977-08-08 | Method of sulfuric acid purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772518399A SU800128A2 (en) | 1977-08-08 | 1977-08-08 | Method of sulfuric acid purification |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU710961 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU800128A2 true SU800128A2 (en) | 1981-01-30 |
Family
ID=20722500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772518399A SU800128A2 (en) | 1977-08-08 | 1977-08-08 | Method of sulfuric acid purification |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU800128A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324499A (en) * | 1990-11-30 | 1994-06-28 | Chemetics International Co. Ltd. | Fluoride removal from sulphuric acid |
-
1977
- 1977-08-08 SU SU772518399A patent/SU800128A2/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324499A (en) * | 1990-11-30 | 1994-06-28 | Chemetics International Co. Ltd. | Fluoride removal from sulphuric acid |
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