SU644872A1 - Method of complex reprocessing of pyrite cinder - Google Patents
Method of complex reprocessing of pyrite cinderInfo
- Publication number
- SU644872A1 SU644872A1 SU772524515A SU2524515A SU644872A1 SU 644872 A1 SU644872 A1 SU 644872A1 SU 772524515 A SU772524515 A SU 772524515A SU 2524515 A SU2524515 A SU 2524515A SU 644872 A1 SU644872 A1 SU 644872A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pyrite cinder
- pyrite
- complex
- cinders
- reprocessing
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Description
1one
Изобретение относитс к области технологии переработки и утилизации отходов химических производств, а именно к способам переработки пиритных огарков -отходов производств серной кислоты из серных колчеданов (пиритов).The invention relates to the field of processing technology and recycling of chemical production wastes, and in particular to methods for processing pyrite cinders, waste production of sulfuric acid from sulfur pyrites (pyrites).
Известен способ комплексной переработки пиритных огарков путем восстановлени с получением железосодержащего концентрата 1.The known method of complex processing of pyrite cinders by reduction to produce iron-containing concentrate 1.
Способ переработки по этой схеме состоит , из следующих стадий:The method of processing according to this scheme consists of the following stages:
обжиг пиритиых огарков в печах кип щего сло (КС), в результате чего получаютс гематизированные огарки;roasting pyrite cinders in fluidized bed furnaces (CC), resulting in hematised cinders;
восстановление огарков до магнетита (магнетизирующий обжиг);restoration of stubs to magnetite (magnetising calcination);
в зависимости от содержани железа в огарках - обогащение огарков магнитной сепарацией;depending on the content of iron in the cinders, the enrichment of the stubs by magnetic separation;
хлоридовозгонка огарков в печи КС в восстановительной атмосфере;chlorine distillation of stubs in a KS furnace in a reducing atmosphere;
извлечение хлоридов цветных металлов и мыщь ка.extraction of non-ferrous metal chlorides and mice.
Получение окатыщей путем спекани их при 1100°С в аппаратах барабанного типа и обжига их на ленте.Getting pellets by sintering them at 1100 ° C in a drum-type apparatus and firing them on a tape.
Качество получаемых окатышей оцениваетс содержанием железа €7%. Основными недостатками известного The quality of the pellets obtained is estimated to have an iron content of € 7%. The main disadvantages of the famous
способа переработки огарков вл ютс высокие температуры стадии восстановительного магнетизирующего обжига в печи КС и стадий хлоридовозгонки, чрезвычайные сложность и многостадийность процесса , что требует значительных энергетических затрат и сложного аппаратурного оформлени , а следовательно, больших капитальных и эксплуатационных затрат.The method of recycling cinders has high temperatures at the stage of reducing magnetising roasting in a KS furnace and stages of chloride sublimation, an extraordinary complexity and multistage process, which requires significant energy costs and complex instrumentation, and consequently, large capital and operating costs.
Цель изобретени - упрощение процесса , снижение капитальных затрат и повышение качества концентрата.The purpose of the invention is to simplify the process, reduce capital costs and improve the quality of the concentrate.
Поставленна цель достигаетс тем, что переработку ведут электролизом из суспензии огарка в сернокислом электролите с концентрацией H2S04 5-25% на магнитном катоде при плотности тока 100- 2500 А/м, напр жении 0,5-2В и температуре 20-90° С.The goal is achieved by the fact that the processing is carried out by electrolysis from a calcine suspension in a sulfate electrolyte with a concentration of H2S04 of 5-25% on a magnetic cathode at a current density of 100-2500 A / m, voltage 0.5-2V and temperature 20-90 ° C
Процесс основан на электрохимическом восстановлении огарка на магнитном катоде (одновременна магнитна сепараци обогащенного пиритного огарка) и количественном выделении в газовую фазу мышь ка в виде арсина. Восстановление пиритного огарка осуществл етс в реакторе с разделенными анодным и катодным пространствами керамической (либо какой другой) диафрагмой из суспензии огарка в растворе серной кислоты. На магнитномThe process is based on the electrochemical reduction of the cinder on the magnetic cathode (simultaneous magnetic separation of the enriched pyrite cinder) and quantitative release of the mouse in the form of arsine into the gas phase. The reduction of the pyrite calcine is carried out in a reactor with separated anodic and cathodic spaces with a ceramic (or any other) diaphragm from the calcine slurry in a solution of sulfuric acid. On magnetic
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772524515A SU644872A1 (en) | 1977-09-12 | 1977-09-12 | Method of complex reprocessing of pyrite cinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772524515A SU644872A1 (en) | 1977-09-12 | 1977-09-12 | Method of complex reprocessing of pyrite cinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU644872A1 true SU644872A1 (en) | 1979-01-30 |
Family
ID=20724945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772524515A SU644872A1 (en) | 1977-09-12 | 1977-09-12 | Method of complex reprocessing of pyrite cinder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU644872A1 (en) |
-
1977
- 1977-09-12 SU SU772524515A patent/SU644872A1/en active
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