Extraction system and extraction method for separating magnesium and extracting lithium from magnesium-containing brine by using secondary amide solvent as well as application of extraction system and extraction method
A technology using secondary amide type and secondary amide type, applied in extraction methods and its application fields, can solve the problems such as failure to complete the large-scale test verification and screening of extractants, and failure to find extraction systems.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0047] Li in the brine of a salt lake in Qaidam Basin, Qinghai + and Mg 2+ The contents are 2.00g / L and 113.43g / L respectively, and the mass ratio of magnesium to lithium is 56.67:1, of which Na + 、K + , Cl - , and B 2 o 3 The contents are 3.83, 1.60, 325.98, 44.00 and 8.14g / L respectively, and the brine density is 1.34g / cm 3 , The brine pH value is 4.3. Take 10mL of this kind of brine in a 100mL ground-mouth Erlenmeyer flask, and then add 30mL of N-octylisobutyramide as an extractant, and the volume ratio of extractant to salt lake brine is 3:1. Put magnets in the Erlenmeyer flask, insert the matching air condenser into the mouth of the flask to prevent the liquid from splashing out, place it in a DF-101S collector type constant temperature heating magnetic stirrer, mix and stir at 20°C, and extract for 30 minutes. Then the mixed liquid was transferred to a 250mL plastic test tube, centrifuged in a LD5-10 desktop centrifuge at a speed of 4500r / min for 15min, the inte...
Embodiment 2
[0054] Take 30mL of N-sec-heptylheptylamide as an extractant in a 100mL ground-necked Erlenmeyer flask, and then add 10mL of the salt lake brine in Example 1, the volume ratio of the extractant to the salt lake brine is 3:1. Put magnets in the Erlenmeyer flask, insert the matching air condenser into the mouth of the flask to prevent the liquid from splashing out, place it in a DF-101S collector type constant temperature heating magnetic stirrer, mix and stir at 20°C, and extract for 30 minutes. Then the mixed liquid was transferred to a 250mL plastic test tube, centrifuged in a LD5-10 desktop centrifuge at a speed of 4500r / min for 15min, the interface between the two phases was clear, and after phase separation, the loaded organic phase after extraction and the remaining brine phase were obtained. Transfer the loaded organic phase to another 100mL ground-mouth Erlenmeyer flask, add deionized water at a volume ratio of 1:6 to the organic phase, and place it in a DF-101S type col...
Embodiment 3
[0060] Take 30mL of N-isooctylheptanamide as the extractant in a 100mL ground-necked Erlenmeyer flask, and then add 10mL of the salt lake brine in Example 1, the volume ratio of the extractant to the salt lake brine is 3:1. Put magnets in the Erlenmeyer flask, insert the matching air condenser into the mouth of the flask to prevent the liquid from splashing out, place it in a DF-101S collector type constant temperature heating magnetic stirrer, mix and stir at 20°C, and extract for 30 minutes. Then the mixed liquid was transferred to a 250mL plastic test tube, centrifuged in a LD5-10 desktop centrifuge at a speed of 4500r / min for 15min, the interface between the two phases was clear, and after phase separation, the loaded organic phase after extraction and the remaining brine phase were obtained. Transfer the loaded organic phase to another 100mL ground-mouth Erlenmeyer flask, add deionized water at a volume ratio of 1:3 to the organic phase, and place it in a DF-101S type coll...
PUM
| Property | Measurement | Unit |
|---|---|---|
| freezing point | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More