SU356303A1 - METHOD OF PROCESSING SLUDES OF ELECTROLYTIC MANUFACTURE OF MAGNESIUM - Google Patents
METHOD OF PROCESSING SLUDES OF ELECTROLYTIC MANUFACTURE OF MAGNESIUMInfo
- Publication number
- SU356303A1 SU356303A1 SU1655470A SU1655470A SU356303A1 SU 356303 A1 SU356303 A1 SU 356303A1 SU 1655470 A SU1655470 A SU 1655470A SU 1655470 A SU1655470 A SU 1655470A SU 356303 A1 SU356303 A1 SU 356303A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnesium
- processing
- sludes
- melt
- electrolytic
- Prior art date
Links
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title description 7
- 229910052749 magnesium Inorganic materials 0.000 title description 7
- 239000011777 magnesium Substances 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 7
- 238000000034 method Methods 0.000 title description 7
- 239000000395 magnesium oxide Substances 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 7
- 238000005660 chlorination reaction Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- HZZOEADXZLYIHG-UHFFFAOYSA-N magnesiomagnesium Chemical compound [Mg][Mg] HZZOEADXZLYIHG-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Description
Изобретение относитс к области металлургии легких металлов, в частности к переработке отходов электролитического нолучени магни .This invention relates to the field of light metals metallurgy, in particular to the processing of electrolytic magnesium production waste.
Известен способ переработки шламов электролизного производства магни путем их хлорировани , при осуществлении которого пульпу из шлама и обедненного электролита с содержанием 1-10% окиси магни и 5-25% хлористого магни хлорируют в хлораторе одновременно хлормагниевым сырьем до содержани в расплаве 0,7% окиси магни , после чего обогащенный хлористым магнием электролит подают в электролизеры.A method is known for processing magnesium sludge from electrolysis production by chlorination, in which slurry from sludge and a depleted electrolyte containing 1–10% magnesium oxide and 5–25% magnesium chloride is chlorinated in a chlorinator at the same time with a magnesium magnesium raw material to contain 0.7% oxide in the melt magnesium, after which the electrolyte enriched with magnesium chloride is fed into the electrolytic cells.
Предложенный способ отличаетс тем, что хлорирование шлама ведут при 750-850° С в присутствии углеродистого восстановител при содержании окиси магни в расплаве 10-25% с последующим отстоем расплава после хлорировани . Это позвол ет утилизировать отходы магниевого производства, повысить использование хлора и качество готового продукта.The proposed method is characterized in that the slurry is chlorinated at 750-850 ° C in the presence of a carbonaceous reducing agent at a magnesium oxide content in the melt of 10-25%, followed by melt sludge after chlorination. This makes it possible to utilize magnesium production wastes, increase the use of chlorine and the quality of the finished product.
Предложенный способ осуществл етс в специальном аппарате (хлораторе), предназначенном только дл переработки шламов и работающем в замкнутом цикле с бесхлорным плавильным агрегатом дл обезвоживани карналлита. Шламы хлорируют при 750- 850°С в расплаве отработанного электролита или карналлита в присутствии нефтекокса приThe proposed method is carried out in a special apparatus (chlorator) intended only for the processing of sludge and operating in a closed cycle with a chlorine-free melting unit for carnallite dehydration. Slimes are chlorinated at 750–850 ° С in the melt of spent electrolyte or carnallite in the presence of petroleum coke at
концентрации окиси магни не ниже 10%. Повышение концентрации окиси магни в хлораторе до 15-20% осуществл етс заливкой щламов бесхлорного плавильного агрегата,the concentration of magnesium oxide is not less than 10%. Increasing the concentration of magnesium oxide in the chlorinator to 15–20% is accomplished by pouring the slit of a chlorine-free melting unit,
щламов электролизных ванн, а также шламов переплавки конденсата титанового производства . При снижении концентрации окиси магни в процессе хлорировани до 10% часть расплава из хлоратора выводитс в миксерelectrolysis bath slimes, as well as smelting remelting of titanium production condensate. By reducing the concentration of magnesium oxide in the chlorination process to 10% of the melt from the chlorinator is removed to the mixer
плавильного агрегата дл отсто окиси магни и последующего возврата ее на хлорирование. Осветленна часть расплава из миксера направл етс на электролиз. Осуществление предложенного способа позвол ет получать только при переработке щламов второй стадии обезвоживани дополнительно 7% безводного карналлита при высоком качестве готового продукта и использовании хлора до 90%.a smelting unit for separating magnesium oxide and then returning it to chlorination. The clarified portion of the melt from the mixer is sent to electrolysis. The implementation of the proposed method makes it possible to obtain an additional 7% anhydrous carnallite with the high quality of the finished product and the use of chlorine up to 90% only when processing the slimes of the second stage of dehydration.
Предмет изобретени Subject invention
Способ переработки шламов электролитического производства магни путем их хлорировани в расплаве хлористых солей, отличающийс тем, что, с целью утилизации отходов магниевого производства, повыщени использовани хлора и качества готового продукта, хлорирование шлама ведут в присутствии уг3 леродистого восстановител окиси магни в расплаве 10- при содержании туре 750-850 С с последующим отстоем рае25% и темпера- плава после хлорировани . 356303 4A method for processing electrolytic magnesium production sludge by chlorinating them in a molten chloride salt, characterized in that, in order to utilize magnesium production wastes, to increase chlorine use and the quality of the finished product, the slurry is chlorinated in the presence of carbonaceous magnesium oxide reducing agent in melt 10 - 750–850 ° C with subsequent precipitation of 25% of the temperature and temperature after chlorination. 356303 4
. . ..„.,..,,„, ...-. . .;Cf- С С ,-, С .. . .. „., .. ,,„, ...-. . .; Cf- С С, -, С.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU356303A1 true SU356303A1 (en) |
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