SU196319A1 - METHOD OF CLEANING SALT MELTS DURING ELECTROLYTIC PREPARATION OF MAGNESIUM - Google Patents
METHOD OF CLEANING SALT MELTS DURING ELECTROLYTIC PREPARATION OF MAGNESIUMInfo
- Publication number
- SU196319A1 SU196319A1 SU1081758A SU1081758A SU196319A1 SU 196319 A1 SU196319 A1 SU 196319A1 SU 1081758 A SU1081758 A SU 1081758A SU 1081758 A SU1081758 A SU 1081758A SU 196319 A1 SU196319 A1 SU 196319A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnesium
- salt melts
- melts during
- during electrolytic
- electrolytic preparation
- Prior art date
Links
- 239000000155 melt Substances 0.000 title description 9
- 238000004140 cleaning Methods 0.000 title description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title description 3
- 229910052749 magnesium Inorganic materials 0.000 title description 3
- 239000011777 magnesium Substances 0.000 title description 3
- 150000003839 salts Chemical class 0.000 title description 3
- 239000011780 sodium chloride Substances 0.000 title description 3
- 239000012535 impurity Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- -1 chlorine magnesium Chemical compound 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Description
Известен снособ очистки солевых расплавов путем введени в расплав восстанавливающих примеси металлов, например магни .A known method for cleaning salt melts is by introducing reducing impurities of metals, for example magnesium, into the melt.
Особенность описываемого способа состоит в том, что в расплав ввод т щелочной металл. Использование в качестве металлов-восстановителей щелочных металлов увеличивает скорость очистки расплава от примесей.A feature of the described method is that an alkali metal is introduced into the melt. The use of alkali metals as reducing metals increases the rate of melt cleaning from impurities.
Способ основан на том, что в расплав ввод т металлы, обладающие большей величиной изменени изобарно-изотермического потенциала его хлоридов и окислов, чем соответствующа примесь, и высокой растворимостью в расплавленных хлоридах.The method is based on the fact that metals with a greater change in the isobaric-isothermal potential of its chlorides and oxides than the corresponding impurity and high solubility in molten chlorides are introduced into the melt.
Первое свойство обеспечивает принципиальную возможность очистки, а второе-высокую скорость процесса очистки, вследствие протекани реакции взаимодействи в гомогенных услови х.The first property provides the fundamental possibility of purification, and the second, the high speed of the purification process, due to the reaction occurring under homogeneous conditions.
Такими свойствами обладают некоторые щелочные металлы, в частности натрий и калий , а также и щелочноземельные металлы, как, например, кальций, барий и рубидий.Some alkali metals, in particular sodium and potassium, as well as alkaline earth metals, such as calcium, barium and rubidium, possess such properties.
Сущность способа состоит в том, что в расплав ввод т один из указанных щелочных или щелочноземельных металлов в количестве не более стехиометрически необходимого. Восстановленные до металла примеси быстро оседают на дно реакционного сосуда.The essence of the method is that one of the indicated alkali or alkaline-earth metals is introduced into the melt in an amount not more than stoichiometrically necessary. Impurities reduced to metal quickly settle to the bottom of the reaction vessel.
Пример. При электролизе хлормагниевого расплава, содержащего 0,05% TiCls, выход по току составл л в среднем 76%. После введеПИЯ натри в количестве, равном стехиометрическому дл восстановлени всего титана до металлического, выход по току подн лс до 94%.Example. During electrolysis of a chlorine magnesium melt containing 0.05% TiCls, the current efficiency was on average 76%. After the introduction of sodium in an amount equal to the stoichiometric amount to reduce all titanium to metallic, the current efficiency increased to 94%.
Врем удалени примесей в лабораторных услови х не превышает 10 мин.The time of removal of impurities in the laboratory does not exceed 10 minutes.
Предмет изобретени Subject invention
Способ очистки солевых расплавов при электролитическом получении магни путем введени в расплав восстанавливающих примеси металлов, отличающийс тем, что, с целью увеличени скорости очистки, в расплав ввод т щелочной металл.The method of purification of salt melts in the electrolytic production of magnesium by introducing reducing impurities of metals into the melt, characterized in that, in order to increase the cleaning rate, alkali metal is introduced into the melt.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU196319A1 true SU196319A1 (en) |
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