SU55734A1 - The method of purification of phosphoric acid from the mouse - Google Patents
The method of purification of phosphoric acid from the mouseInfo
- Publication number
- SU55734A1 SU55734A1 SU19875A SU55734DA SU55734A1 SU 55734 A1 SU55734 A1 SU 55734A1 SU 19875 A SU19875 A SU 19875A SU 55734D A SU55734D A SU 55734DA SU 55734 A1 SU55734 A1 SU 55734A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phosphoric acid
- mouse
- purification
- acid
- hydrogen sulfide
- Prior art date
Links
Landscapes
- Treating Waste Gases (AREA)
Description
Термическа фосфорна кислота получаетс сжиганием элементарного газообразного или твердого желтого фосфора до РоОо- Последний в башн х орошени гидратируетс до HsPOj, и полученна туманообразна фосфорна кислота улавливаетс электрофильтром .Thermal phosphoric acid is obtained by burning elemental gaseous or solid yellow phosphorus to RoO. The latter is hydrated in the reflux towers to HsPOj, and the resulting mist-like phosphoric acid is captured by an electrostatic precipitator.
Полученна таким образом фосфорна кислота содержит значительное количество мышь ка что делает ее годной только дл технических целей .The phosphoric acid thus obtained contains a significant amount of a mouse, which makes it suitable only for technical purposes.
Из существуюш,их различных способов химической очистки кислоты от мышь ка наиболее применим сероводородный метод.Of the existing, their various methods of chemical purification of the acid from the mouse, the most suitable is the hydrogen sulphide method.
По данному методу кислота разбавл етс водой до определенного удельного веса и к ней прибавл етс газообразный сероводород, сероводородна вода или раствор сернистого натра. Полученна смесь отстаиваетс в течение 4-6 час., затем кислота продуваетс воздухом дл удалени сероводорода и наконец фильтруетс .In this method, the acid is diluted with water to a specific specific gravity, and gaseous hydrogen sulfide, hydrogen sulfide water, or a solution of sodium sulphide is added to it. The resulting mixture is allowed to settle for 4-6 hours, then the acid is purged with air to remove the hydrogen sulfide and finally filtered.
Все эти операции провод тс в специальной аппаратуре.All these operations are carried out in special equipment.
Автором насто ш.его изобретени установлено,-ЧТО хорошие результаты получаютс , если очистку кислоты от мышь ка проводить в туманообразной фазе.The author of this invention of his invention has established that WTO good results are obtained if the acid is cleared from the mouse in the mist phase.
Согласно предлагаемому способу, сероводород, сероводородна вода или сернистый натр поступает непрерывно небольшими порци ми в электрофильтр или башню орошени , где, испар сь, смешиваетс с туманообразной фосфорной кислотой. При этом выделившиес сернистые соединени мышь ка улавливаютс электрофильтром вместе с фосфорной кислотой. Избыток сероводорода удал етс с отход шими газами.According to the proposed method, hydrogen sulphide, hydrogen sulphide water or sodium sulphide is continuously supplied in small portions to an electrostatic precipitator or irrigation tower, where it is evaporated, mixed with mist-like phosphoric acid. In this case, the released sulfur compounds of the mouse are trapped by an electrostatic precipitator together with phosphoric acid. Excess hydrogen sulfide is removed from waste gases.
Полученна таким образом фосфорна кислота, отфильтрованна от сернистых соединений мышь ка и механических примесей, свободна от мышь ка и выдерживает стандарт на пищевую фосфорную кислоту.The phosphoric acid thus obtained, filtered from the sulfurous compounds of the mouse and mechanical impurities, is free of the mouse and maintains the standard for food phosphoric acid.
Ведение очистки по предлагаемому способу позвол ет: 1) отказатьс от посто нной специальной установки дл очистки и 2) от установки дл продувки кислоты. Все операции протекают в той же системе, в которой получаетс фосфорна кислота. В рабочем помещении не пахнет вредным дл здоровь сероводородом, чтоCleaning by the proposed method allows: 1) to refuse a permanent special installation for cleaning and 2) from an installation for blowing acid. All operations take place in the same system in which the phosphoric acid is obtained. In the working room does not smell like harmful hydrogen sulfide for health, which
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU55734T | 1938-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU55734A1 true SU55734A1 (en) | 1938-11-30 |
Family
ID=52746512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU19875A SU55734A1 (en) | 1938-11-13 | 1938-11-13 | The method of purification of phosphoric acid from the mouse |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU55734A1 (en) |
-
1938
- 1938-11-13 SU SU19875A patent/SU55734A1/en active
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