Lithium adsorbent and preparation method and application thereof
A lithium adsorption and lithium oxide technology, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve the problems of high cost of lithium solution and low lithium concentration, and achieve low cost, high lithium concentration and wide application prospects Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] Take 1300 grams of spodumene concentrate with a lithium oxide content of 6% and transform it into β-spodumene concentrate by high-temperature calcination and then carry out ball milling and pass through a 60-mesh sieve, and collect 1140 grams of refined material that has passed through the sieve. Lithium oxide content is 6.8%. Take 1100 grams of this refined material and mix it with 274 grams of 98% concentrated sulfuric acid, add it evenly, place it at 230°C for 40 minutes, then cool it to 100°C, and then treat it with concentrated sulfuric acid. Add a good refined material into 2000mL water to make a slurry, pass the slurry through a 80-mesh sieve, filter and wash the slurry that has passed the 80-mesh sieve to obtain a filter cake, and add the filter cake to a dilute sulfuric acid aqueous solution with a pH value of 4 Soak and activate for 3 hours, then carry out solid-liquid separation, and dry the separated filter cake at a temperature of 200°C to obtain 1050 grams ...
Embodiment 2
[0025] Take 1200 grams of spodumene concentrate with a lithium oxide content of 7.5% and convert it into β-spodumene concentrate by high-temperature calcination and then carry out ball milling and pass through a 60-mesh sieve, and collect 1185 grams of refined material that has passed through the sieve. The lithium oxide content is 7.5%. Take 1100 grams of this refined material and mix it with 362.2 grams of 98% concentrated sulfuric acid, add it evenly, place it at 200°C for 20 minutes, then cool it to 80°C, and then treat it with concentrated sulfuric acid. Add a good refined material into 2000mL water to make a slurry, pass the slurry through a 80-mesh sieve, filter and wash the slurry that has passed the 80-mesh sieve to obtain a filter cake, and add the filter cake to a dilute hydrochloric acid aqueous solution with a pH value of 4 Soak and activate for 1 hour, then carry out solid-liquid separation, and dry the separated filter cake at a temperature of 100°C to obtain 105...
Embodiment 3
[0029] Take 1500 grams of spodumene concentrate with a lithium oxide content of 4% and convert it to β-spodumene concentrate by high-temperature calcination and then carry out ball milling and pass through a 60-mesh sieve, and collect 1150 grams of refined material that has passed through the sieve. The lithium oxide content is 5.2%. Take 1100 grams of the refined material and 190.7 grams of 98% concentrated sulfuric acid, mix and add evenly, then place it at 300 ° C for 60 minutes, then cool it to 60 ° C, and then heat-treat the concentrated sulfuric acid. Add good refined material into 2000mL water to make a slurry, pass the slurry through a 80-mesh sieve, filter and wash the slurry that has passed the 80-mesh sieve to obtain a filter cake, add the filter cake to dilute sulfuric acid with a pH value of 4 and dilute Soak and activate in the mixed aqueous solution of hydrochloric acid for 10 hours, then carry out solid-liquid separation, and dry the separated filter cake at a t...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More