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Process for producing solid particles, solid particles and use thereof

A technology of solid particles and inorganic solids, applied in chemical instruments and methods, improvement of process efficiency, silicon compounds, etc.

Inactive Publication Date: 2021-09-28
道夫纳兄弟高岭土和水晶石英砂工厂有限两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, these residues must be included as a cost factor in the calculation

Method used

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  • Process for producing solid particles, solid particles and use thereof
  • Process for producing solid particles, solid particles and use thereof
  • Process for producing solid particles, solid particles and use thereof

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Embodiment Construction

[0104] Two mineral concentrates or concentrates (inorganic solids containing at least one alkali metal and / or alkaline earth metal) derived from lithium extraction and consisting essentially of spodumene, containing a) 5.0% by mass of Li 2 O and b) 7.0% by mass of Li 2 O, the calcination and leaching process (extraction) was carried out on a laboratory scale under the following conditions:

[0105] Calcination temperature: 1100°C

[0106] Calcination time: 1h

[0107] Baking temperature: 250℃

[0108] Baking time: 1h

[0109] h 2 SO 4 / Spodumene: 0.3

[0110] Water / spodumene: 3:1

[0111] Flushing solution / spodumene: 1:1

[0112] Extraction temperature: 90°C

[0113] Extraction time: 1h

[0114] After the above-mentioned extraction or leaching, two lithium-depleted residues and thus solid particles according to the invention are obtained, hereinafter referred to as TLR 5.0 and TLR 7.0 (TLR=Test Leach Residue). The following chemical, physical and mineralogical prope...

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Abstract

The invention relates to a process for producing solid particles made of an inorganic solid containing at least one alkali metal and / or alkaline earth metal, comprising at least the following steps: a) providing the inorganic solid containing at least one alkali metal and / or alkaline earth metal; b) extracting the at least one alkali metal and / or alkaline earth metal from the inorganic solid containing alkali metal and / or alkaline earth metal to obtain an extract containing the alkali metal and / or alkaline earth metal and a residue depleted in alkali metal and / or alkaline earth metal; c) separating the extract from the residue; d) working up the residue to obtain the solid particles, wherein at least one of the workup steps is selected from a group which comprises transporting, filling, packaging, washing, drying, pH-adjusting, separating by average particle size and / or mass and / or density, establishing an average particle size, magnetic separation, calcination, thermal rounding and surface coating.

Description

technical field [0001] The present invention relates to a method for producing solid particles from inorganic solids containing at least one alkali metal and / or alkaline earth metal. The invention also relates to such solid particles and uses of such solid particles. Background technique [0002] Alkali and alkaline earth metals do not occur naturally in nature, but only as components of compounds such as salts and minerals. In the prior art, they are obtained by processing inorganic solids (mainly ores) containing alkali metals and / or alkaline earth metals, by extraction (leaching), or by processing brine solutions from salt lakes. When leaching an ore, a suitable solvent is usually used to dissolve the alkali metal or alkaline earth metal to be extracted, and then the solution containing the alkali metal and / or alkaline earth metal (extract) is separated from the remaining insoluble solids (called residue). The alkali metal-depleted and / or alkaline earth metal-depleted r...

Claims

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Application Information

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IPC IPC(8): C22B26/12C22B26/22C09C1/00C01B33/187
CPCC22B26/12C22B26/22C22B3/08C22B3/22C01B33/18C01P2006/11C01P2006/22C01P2006/62C01P2006/63C01P2006/64C01P2006/60C01P2004/61C01P2006/19C01P2006/12C01P2004/62C09C1/405C09C1/28Y02P10/20C01D15/02C01P2004/03C01P2004/80C09C1/42C22B3/06
Inventor 埃里希·奥策尔莱因哈德·克劳特
Owner 道夫纳兄弟高岭土和水晶石英砂工厂有限两合公司
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