SU639965A1 - Method of obtaining tellurium dioxide - Google Patents
Method of obtaining tellurium dioxideInfo
- Publication number
- SU639965A1 SU639965A1 SU772463590A SU2463590A SU639965A1 SU 639965 A1 SU639965 A1 SU 639965A1 SU 772463590 A SU772463590 A SU 772463590A SU 2463590 A SU2463590 A SU 2463590A SU 639965 A1 SU639965 A1 SU 639965A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tellurium
- tellurium dioxide
- electrodes
- dissolved
- obtaining
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 title description 5
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 12
- 229910052714 tellurium Inorganic materials 0.000 description 8
- 238000004090 dissolution Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
кислоты. Объем электролита 1 л. Напр жение на электродах 3, В. Врем проведени процесса 4 ч. Количество растворившегос теллура составл ет 120 г. Скорость растворени теллура 30 г/ч-дм. Выход по току 80%. Выдел ющийс осадок теллура отфильтровывают, промывают водой и сушат ири температуре 100-1 0°С. Вес осадка 150 г.acid. The electrolyte volume is 1 l. The voltage on the electrodes 3, B. The process time is 4 hours. The amount of dissolved tellurium is 120 g. The dissolution rate of tellurium is 30 g / h-dm. Current output 80%. The precipitated tellurium precipitate is filtered off, washed with water and dried and the temperature is 100-1 0 ° C. Draft weight 150 g
Пример 2. В электролизер, представл ющий собой цилиндр с плоскими графитовыми электродами, расположенными по кра м цилиндра, и мешалкой, насыпают 500 г теллурового порошка и заливают 1 л 15 масс. % раствора азотной кислоты. На электроды подаетс переменный ток плотностью 20 А/дм и при температуре 20°С и перемешивании раствор ют теллуровый порошок . Напр жение на электродах 5 В. Врем проведени процесса 4 ч. Количество растворившегос теллура составл ет 180 г. Скорость растворени 45 г/ч-дм. Выход по Т0;ку 80%. Выдел ющийс осадок диоксида теллура отфильтровывают, промывают водой и сушат при температуре 100-110°С. Вес осадка 225 г.Example 2. In the electrolyzer, which is a cylinder with flat graphite electrodes located on the edges of the cylinder and a stirrer, pour 500 g of tellurium powder and pour 1 liter of 15 masses. % solution of nitric acid. An alternating current with a density of 20 A / dm is applied to the electrodes and tellurium powder is dissolved at a temperature of 20 ° C and with stirring. The voltage on the electrodes is 5 V. The duration of the process is 4 hours. The amount of dissolved tellurium is 180 g. The dissolution rate is 45 g / h-dm. The output for T0; ky 80%. The separated precipitate of tellurium dioxide is filtered off, washed with water and dried at a temperature of 100-110 ° C. Draft weight 225 g
Пример 3. В электролизер, снабженный вод ной рубашкой, помещают два теллуровых электрода общим весом 500 г и под действием переменного тока плотностью 10 А/дм и при температуре 20°С раствор ют теллур в электролите, представл ющем собой 1 масс. % раствор азотной кислоты. Объем электролита 1 л. Напр жение на электродах 1,5 В. Врем проведени 4 ч. Количество растворившегос теллура 40 г. Скорость растворени теллура 10 г/ч-дм. Выход по току 60%. Вес промытого высушенного осадка 50 г. В этом примере понижаетс скорость растворени теллура..Example 3. In a cell equipped with a water jacket, two telluride electrodes with a total weight of 500 g are placed and, under the action of an alternating current with a density of 10 A / dm, and at a temperature of 20 ° C, tellurium is dissolved in an electrolyte of 1 mass. % solution of nitric acid. The electrolyte volume is 1 l. The voltage on the electrodes is 1.5 V. The duration is 4 hours. The amount of dissolved tellurium is 40 g. The dissolution rate of tellurium is 10 g / h-dm. Current output 60%. The weight of the washed dried precipitate is 50 g. In this example, the rate of dissolution of tellurium is reduced.
Пример 4. В электролизер, представл ющий собой цилиндр с плоскими графитовыми электродами, расположенными по кра м цилиндра, и мешалкой, насыпают Example 4. In the electrolytic cell, which is a cylinder with flat graphite electrodes located on the edges of the cylinder, and a stirrer, pour
500 г теллурового порошка и раствор ют его в 20 масс. % растворе азотной кпслоты при плотности тока 40 А/дм. Объем электролита 1 л. Напр жение на электродах 20 В. Врем проведени процесса 4 ч. Выход по току 80%. Количество растворившегос порошка теллура 250 г. Скорость растворени составл ет 62 г/ч-дм. Так как в этом примере вз та 20 масс. % азотна кислота, начинают выдел тьс токсичные окислы азота в процессе образовани диоксида теллура.500 g tellurium powder and dissolve it in 20 wt. % Nitrogen solution at a current density of 40 A / dm. The electrolyte volume is 1 l. The voltage on the electrodes is 20 V. The duration of the process is 4 hours. The current efficiency is 80%. The amount of dissolved tellurium powder is 250 g. The dissolution rate is 62 g / h-dm. Since in this example, 20 masses are taken. % nitric acid, toxic oxides of nitrogen begin to be released during the formation of tellurium dioxide.
Предлагаемый электрохимический способ получени диоксида теллура позвол ет исключить образование токсичных окислов азота и св занное с этим решение вопросов их утилизации; сократить расходные нормы азотной кислоты на единицу целевого продукта в 100 раз; снизить температуру процесса и исключить решение вопроса подбора специального коррозионностойкого оборудовани при работе с агрессивными средами. ,The proposed electrochemical method for the production of tellurium dioxide makes it possible to eliminate the formation of toxic nitrogen oxides and the associated solution of their disposal issues; reduce the consumption rate of nitric acid per unit of the target product by 100 times; reduce the temperature of the process and exclude the solution of the question of selecting special corrosion-resistant equipment when working with aggressive media. ,
Предполагаемый экономический эффект при реализации перечисленных вопросов составит 50 тыс. руб. на 1 т получаемого электрохимическим способом диоксида теллура.The estimated economic effect in the implementation of these issues will be 50 thousand rubles. per 1 ton of the tellurium dioxide produced by the electrochemical method.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772463590A SU639965A1 (en) | 1977-03-17 | 1977-03-17 | Method of obtaining tellurium dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772463590A SU639965A1 (en) | 1977-03-17 | 1977-03-17 | Method of obtaining tellurium dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU639965A1 true SU639965A1 (en) | 1978-12-30 |
Family
ID=20699886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772463590A SU639965A1 (en) | 1977-03-17 | 1977-03-17 | Method of obtaining tellurium dioxide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU639965A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019531A (en) * | 2018-08-07 | 2018-12-18 | 中船重工黄冈贵金属有限公司 | A method of high-purity tellurium dioxide is prepared using thick tellurium as raw material |
-
1977
- 1977-03-17 SU SU772463590A patent/SU639965A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019531A (en) * | 2018-08-07 | 2018-12-18 | 中船重工黄冈贵金属有限公司 | A method of high-purity tellurium dioxide is prepared using thick tellurium as raw material |
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