SU165544A1 - METHOD OF ELECTROLYTIC TELLURIUM OBTAINING - Google Patents
METHOD OF ELECTROLYTIC TELLURIUM OBTAININGInfo
- Publication number
- SU165544A1 SU165544A1 SU861892A SU861892A SU165544A1 SU 165544 A1 SU165544 A1 SU 165544A1 SU 861892 A SU861892 A SU 861892A SU 861892 A SU861892 A SU 861892A SU 165544 A1 SU165544 A1 SU 165544A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tellurium
- electrolytic
- obtaining
- electrolysis
- teo2
- Prior art date
Links
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 title description 9
- 229910052714 tellurium Inorganic materials 0.000 title description 9
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M Lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- LAJZODKXOMJMPK-UHFFFAOYSA-N Tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910003069 TeO2 Inorganic materials 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
Способ электролитического выделени теллура из щелочных растворов, получаемых растворением двуокиси теллура в щелочи,известен . Электролит, используемый дл этой цели, состоит из 75-85 г/л Те и 125-140 г/л NaOH (общ).The method of electrolytic separation of tellurium from alkaline solutions obtained by dissolving tellurium dioxide in alkali is known. The electrolyte used for this purpose consists of 75-85 g / l of Te and 125-140 g / l of NaOH (total).
Особенность предлагаемого способа состоит в том, что теллур осаждаетс из расплавленной среды следующего состава: 25% КС1, 25% LiCl, 50% ТеО2. При этом получают чистый теллур за одну стадию процесса электролиза .A feature of the proposed method is that tellurium precipitates from a molten medium of the following composition: 25% KCl, 25% LiCl, 50% TeO2. At the same time, pure tellurium is obtained in one stage of the electrolysis process.
По описываемому способу отвешенные количества предварительно измельченных КС1, LiCI и ТеО2 помещают в электролизер и нагревают до 650-680°С. Такой предел температур вл етс наивысшим дл получени относительно чистых теллуровых слитков. Электролнзером служит фарфоровый тигель со стальным катодом и графитовым анодом.According to the described method, the weighed quantities of pre-crushed KC1, LiCI and TeO2 are placed in the electrolyzer and heated to 650-680 ° C. This temperature limit is the highest for obtaining relatively clean tellurium ingots. The porcelain crucible with a steel cathode and a graphite anode serves as an electroneserver.
Во врем электролиза, проводимого при токе 0,15-0,2 а/см-, теллур осаждаетс на катоде и в жидком состо нии накапливаетс на дне электролизера; в верхней части электролизера собираютс примеси в виде шлака.During electrolysis carried out at a current of 0.15-0.2 A / cm-, tellurium is deposited on the cathode and accumulates in the liquid state at the bottom of the electrolyzer; impurities in the form of slag are collected at the top of the cell.
По окончании электролиза теллур в виде слитков хорошо отдел етс от остальной массы плава. Чистота полученного электролитического теллура 99,99%.At the end of the electrolysis, tellurium in the form of ingots is well separated from the rest of the melt mass. The purity of the obtained electrolytic tellurium is 99.99%.
Предмет изобретени Subject invention
Способ электролитического получени геллура , отличающийс тем, что, с целью повышени чистоты металла, электроосаждение теллура производ т из расплава, содержащего 25% КС1, 25% LiCl и 50% ТеОо.A method of electrolytically producing gellur, characterized in that, in order to increase the purity of the metal, tellurium electrodeposition is produced from a melt containing 25% KCl, 25% LiCl and 50% TeOo.
Publications (1)
Publication Number | Publication Date |
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SU165544A1 true SU165544A1 (en) |
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