Method for preparing liquid containing metallic ions by employing extraction reaction

A metal ion, liquid technology, used in the preparation of amino compounds from amines, bulk chemical production, organic chemistry, etc., to achieve the effects of reducing environmental pollution, short time, and low energy consumption

Active Publication Date: 2012-09-05
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no articles or patents on the preparation of metal-containing ionic liquids by extraction methods. The synthesis of metal-containing ionic liquids by extraction methods is another method for the synthesis of ionic liquids.

Method used

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  • Method for preparing liquid containing metallic ions by employing extraction reaction
  • Method for preparing liquid containing metallic ions by employing extraction reaction
  • Method for preparing liquid containing metallic ions by employing extraction reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Take 10mL N235 and 30mL 0.84mol / L hydrochloric acid solution in a 60mL separatory funnel, shake at room temperature for 10min, centrifuge to separate the phases, and take the upper phase, which is the [N235H]Cl intermediate.

[0052] Take 10mL [N235H]Cl intermediate and 30mL ferric chloride solution, C Fe 3+ =38.3265mg / mL, hydrochloric acid concentration C HCl =3.6339mol / L, Fe 3+ The ions and [N235H]Cl were mixed in a 60mL separatory funnel at a molar ratio of 1:1, shaken at a constant temperature of 20°C for 90 minutes, centrifuged to separate the phases, and the upper phase was taken, which was dark brown [NR 3 H][FeCl 4 ] ionic liquid with a yield of 54.83%.

[0053] (2) [NR prepared by (1) 3 H][FeCl 4] The ionic liquid and petroleum ether were mixed at a volume ratio of 1:2, oscillated for 3 minutes, and the phases were separated at rest. The collected ionic liquid solvent was evaporated, and vacuum-dried at 70°C for 24h to obtain dark brown [NR 3 H][FeC...

Embodiment 2

[0055] (1) Take 10mL N235 and 30mL 1.2mol / L hydrochloric acid solution in a 60mL separatory funnel, shake at room temperature for 30min, centrifuge to separate the phases, and take the upper phase, which is the [N235H]Cl intermediate.

[0056] Take 10mL [N235H]Cl intermediate and 30mL ferric chloride solution, C Fe 3+ =38.3265mg / mL, hydrochloric acid concentration C HCl =1.5989mol / L, Fe 3+ The moles of ions and [N235H]Cl were mixed in a 60mL separatory funnel at a ratio of 1:1, shaken at a constant temperature of 25°C for 30min, centrifuged to separate the phases, and the upper phase was taken. The upper phase is dark brown [NR 3 H][FeCl 4 ] ionic liquid, the yield is 46.01%.

[0057] (2) [NR prepared by (1) 3 H][FeCl 4 ] The ionic liquid and petroleum ether were mixed at a volume ratio of 1:2, oscillated for 10 min, and the phases were separated at rest, and the lower phase was rich in ionic liquid; the rich ionic liquid in the lower phase was separated; the above step...

Embodiment 3

[0060] (1) Take 10mL N235 and 30mL 0.96mol / L hydrochloric acid solution in a 60mL separatory funnel, shake at room temperature for 20min, centrifuge to separate the phases, and take the upper phase, which is the [N235H]Cl intermediate.

[0061] Take 8mL [N235H]Cl intermediate and 24mL cupric chloride solution, C Cu 2+ =43.4592mg / mL, hydrochloric acid concentration C HCl =2.3257mol / L, Cu 2+ The moles of ions and [N235H]Cl were mixed in a 60mL separatory funnel at a ratio of 1:1, shaken at a constant temperature of 38°C for 120min, centrifuged to separate the phases, and the upper phase was taken. The upper phase is yellow [NR 3 H] 2 [CuCl 4 ] ionic liquid, the yield is: 21.85%.

[0062] (2) [NR prepared by (1) 3 H] 2 [CuCl 4 ] The ionic liquid and petroleum ether were mixed at a volume ratio of 1:2, oscillating for 8 minutes, and the phases were separated at rest. The collected ionic liquid solvent was evaporated and dried in vacuum at 70°C for 18h to obtain a yellow ...

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Abstract

The invention relates to a method for preparing liquid containing metallic ions by employing extraction reaction; in the method, amine extractant is used for extracting the metallic ions in the liquid, thus obtaining metallic amine ion liquid as well as realizing the clean separation of metallic ions and the direct preparation of the functional ion liquid. In the whole preparation process in the method, no organic solvent is used, causing no harm to the environment. In addition, the prepared liquid containing metallic ions can be used as an absorber for acidic gas and a catalyst for alkylation. The loaded organic phase obtained by extraction in the method is the prepared liquid containing metallic ions, therefore, the method omits the step of back extraction of metallic ions, simplifies the process, which results in low cost and little energy consumption, and reduces environment pollution caused by acid in the back extraction process.

Description

technical field [0001] The invention relates to a method for preparing metal-containing ion liquid by extraction reaction. Background technique [0002] Ionic liquids are composed of organic cations and inorganic or organic anions, and are salts in a liquid state at room temperature or near room temperature. As a molten salt at room temperature, ionic liquids rely on their excellent chemical properties, such as: low vapor pressure, wide liquid temperature range, good solubility, high electrochemical stability, in extraction and separation, organic synthesis, chemical catalysis, electrolysis It is widely used in many fields such as chemistry. [0003] Currently, there are two basic synthesis methods for ionic liquids, namely: direct synthesis and two-step synthesis. Direct direct synthesis involves the nucleophilic addition reaction of nucleophiles - tertiary amines (including pyridine, imidazole and pyrrole) with halogenated hydrocarbons or esters (carboxylates, sulfates a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C211/63C07C209/68C07C211/03
CPCY02P20/54
Inventor 陈继樊彩虹张冬丽邓岳锋杨华玲
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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