Production device and production process for extracting lithium from brine through efficient adsorption method

• Main Author: LI QUNSHENG
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: CHEMISTRY; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM; INORGANIC CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention aims to provide a production device and a production process for extracting lithium from brine by an efficient adsorption method. The production device comprises an old brine dilution tank, a primary adsorption tower, a primary deep magnesium removal tower, a secondary deep magnesium removal tower, a secondary magnesium removal leacheate storage tank, a reverse osmosis device, an evaporation device, a primary filtering device, a precise filtering device, a lithium precipitation reaction kettle, a centrifugal machine, a concentration airing pool, a countercurrent washing tower, a filter and a dryer. The method solves the problems that the domestic lithium carbonate production depends on a large amount of lithium ores, the brine lithium salt capacity cannot be completely released, and a large amount of resources are wasted. The efficient ion exchange adsorbent adopted by the invention has very high selectivity to lithium salt, high recovery rate and high product purity, and the adsorbent is simple