HEAVY MEDIA SEPARATION METHOD FOR CARNALLITE ORES
This Laos Patent “HEAVY MEDIA SEPARATION METHOD FOR CARNALLITE ORES” is a public DIP intellectual-property record, filed by Institute of Geology and Geophysics, Chinese Academy of Sciences on 2013-06-18; current status: Awaiting formal examination. Identifiers include application No. P/264; DIP id LAP264; protection kind Patent - Foreign. Key dates: publication 2025-12-19. Classification: C01D 3/00. Inventor(s)/designer(s): Guanghe LIANG. Abstract hint: The invention discloses a heavy media separation method for carnallite ores, including steps of: a) crushing, grinding and screening crude…. Use LaoBiz.com to hop between this IP record, related filings by the same applicant, and the matched company profile when present.
P/264
Mark
Key facts
- Type
- Patent
- App. no.
P/264- Status
- Awaiting formal examination
- Applicant
- Institute of Geology and Geophysics, Chinese Academy of Sciences
- Agent
- Trademark Patent & Services (TPS)
- Filing date
- 2013-06-18
- Publication
- 2025-12-19
- Protection kind
- Patent - Foreign
- Priority
- CN · 201210498806.9 · 2012-11-29
- Applicant address
- Institute of Geology and Geophysics, Chinese Academy of Sciences · No. 19 Beitucheng XiLu, Chaoyang District, Beijing 100029 · CN
- Agent address
- Trademark Patent & Services (TPS) · 079 Bourichane Road, Ban Naxay, Saysettha, Vinetiane 01004, Lao PDR, Tel: 451 070 · LA
- Nice / IPC classes
- C01D 3/00
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination In progress
-
Substantive examination
-
Published
-
Granted
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Abstract
The invention discloses a heavy media separation method for carnallite ores, including steps of: a) crushing, grinding and screening crude ores to obtain middlings; b) separating out NaCl from the middlings by heavy media separation in a solid phase; c) carrying out a cold-crystallization separation process or heated-dissolution and crystallization processes on the concentrated carnallite obtained by separation above, depending on different types of heavy media selected, to obtain a KCI product; and d) extracting bromine from the obtained raffinate. The invention solves problems that: a large amount of saturated MgCl2 solution discharged in the early step of dressing in the prior art is avoided; the recovery ratio of KCL is improved greatly, because the dissolution process is removed, and KCI is not dissolved in the heavy medium; and the energy consumption and water consumption in the subsequent processing steps is greatly reduced, and the discharge of brine is reduced.
The invention discloses a heavy media separation method for carnallite ores, including steps of: a) crushing, grinding and screening crude ores to obtain middlings; b) separating out NaCl from the middlings by heavy media separation in a solid phase; c) carrying out a cold-crystallization separation process or heated-dissolution and crystallization processes on the concentrated carnallite obtained by separation above, depending on different types of heavy media selected, to obtain a KCI product; and d) extracting bromine from the obtained raffinate. The invention solves problems that: a large amount of saturated MgCl2 solution discharged in the early step of dressing in the prior art is avoided; the recovery ratio of KCL is improved greatly, because the dissolution process is removed, and KCI is not dissolved in the heavy medium; and the energy consumption and water consumption in the subsequent processing steps is greatly reduced, and the discharge of brine is reduced.
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