SU112189A1 - The method of obtaining tungsten anhydride and tungsten acid from scheelite concentrates - Google Patents
The method of obtaining tungsten anhydride and tungsten acid from scheelite concentratesInfo
- Publication number
- SU112189A1 SU112189A1 SU574155A SU574155A SU112189A1 SU 112189 A1 SU112189 A1 SU 112189A1 SU 574155 A SU574155 A SU 574155A SU 574155 A SU574155 A SU 574155A SU 112189 A1 SU112189 A1 SU 112189A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tungsten
- anhydride
- acid
- obtaining
- scheelite concentrates
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
В известных способах получени вольфрамовой кислоты и ангидрида из шеелитовых концентратов примен етс сол на кислота без регенерации получающегос при этом хлористого кальци .In the known methods for producing tungstic acid and anhydride from scheelite concentrates, hydrochloric acid is used without regeneration of the resulting calcium chloride.
В предлагаемом способе вместо сол ной кислоты применена азотна кислота, регенерируема в виде товарной кальциевой селитры, что значительно снижает стоимость вольфрамового ангидрида.In the proposed method, instead of hydrochloric acid, nitric acid is used, which is regenerated in the form of commercial calcium nitrate, which significantly reduces the cost of tungsten anhydride.
Способ состоит в разложении азотной кислотой шеелитовых концентратов с получением в осадке технической вольфрамовой кислоты,The method consists in decomposing scheelite concentrates with nitric acid to produce tungstic acid in the sludge,
которую затем подвергают очистке. После прокаливани из нее получают трехокись вольфрама.which is then purified. After calcination, tungsten trioxide is obtained from it.
Из раствора, после отделени вольфрамовой кислоты, получают кальциевую селитру.From the solution, after the separation of tungstic acid, calcium nitrate is obtained.
Предмет изобретени Способ получени вольфрамового ангидрида и вольфрамовой кислоты из шеелитовых концентратов, отличающийс тем, что, с целью удешевлени продукции, вместо сол ной кислоты, применена азотна кислота, регенерируема в виде товарной кальциевой селитры.The subject of the invention is a method for producing tungsten anhydride and tungsten acid from scheelite concentrates, characterized in that, in order to reduce the cost of production, nitric acid is used instead of hydrochloric acid, which is regenerated as commercial calcium nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU574155A SU112189A1 (en) | 1957-06-01 | 1957-06-01 | The method of obtaining tungsten anhydride and tungsten acid from scheelite concentrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU574155A SU112189A1 (en) | 1957-06-01 | 1957-06-01 | The method of obtaining tungsten anhydride and tungsten acid from scheelite concentrates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU112189A1 true SU112189A1 (en) | 1957-11-30 |
Family
ID=48384774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU574155A SU112189A1 (en) | 1957-06-01 | 1957-06-01 | The method of obtaining tungsten anhydride and tungsten acid from scheelite concentrates |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU112189A1 (en) |
-
1957
- 1957-06-01 SU SU574155A patent/SU112189A1/en active
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