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Preparation method of recyclable and fast demulsification mil-100(fe) composite

A composite material and demulsification technology, which is applied in separation methods, chemical instruments and methods, and immiscible liquid separation, etc., can solve the problems of blank and lack of MIL-100 demulsification research, and achieve ultra-fast demulsification speed and stability Effect of cyclic demulsification ability

Active Publication Date: 2022-01-28
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, there are almost no research reports on MOFs, especially MIL-100(Fe), as intrinsic demulsification materials
[0005] In summary, MIL-100(Fe) has the structural characteristics of demulsification materials, but the research on demulsification of MIL-100(Fe) is relatively lacking

Method used

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  • Preparation method of recyclable and fast demulsification mil-100(fe) composite
  • Preparation method of recyclable and fast demulsification mil-100(fe) composite
  • Preparation method of recyclable and fast demulsification mil-100(fe) composite

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Experimental program
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Effect test

Embodiment 1

[0023] Step 1. Dissolve 0.11g of 1-allyl-3-methylimidazole chloride (AmimCl) in 10ml of water to prepare an aqueous AmimCl solution, and dissolve 0.315g of trimesic acid (BTC) in 10ml of methanol to prepare methanol containing BTC solution;

[0024] Step 2. Get 0.54g ferric chloride hexahydrate (FeCl 3 ·6H 2 O) be dissolved in the 10ml AmimCl aqueous solution prepared by above-mentioned step (1), obtain solution A;

[0025] Step 3. Add 10 ml of the methanol solution containing BTC in step 1 dropwise to the solution A under stirring at room temperature, and the dropping rate is 1-2 drops / second. After the dropwise addition was completed, stirring was continued for 12 hours. The product was centrifuged, washed, dried, and ground to obtain a beige powdery sample, which was the MIL-100(Fe) composite (named Amim@MIL-100(Fe)) anchored by the ionic liquid AmimCl as the positive charge carrier. -1:3).

Embodiment 2

[0027] Step 1. Dissolve 0.228g of 1-allyl-3-methylimidazole chloride (AmimCl) in 10ml of water to prepare an aqueous AmimCl solution, and dissolve 0.315g of trimesic acid (BTC) in 10ml of methanol to prepare methanol containing BTC solution;

[0028] Step 2. Get 0.54g ferric chloride hexahydrate (FeCl 3 ·6H 2 O) be dissolved in the 10ml AmimCl aqueous solution prepared by above-mentioned step (1), obtain solution B;

[0029] Step 3. Add 10 ml of the methanol solution containing BTC in step 1 dropwise to the solution B under stirring at room temperature, and the dropping rate is 1-2 drops / second. After the dropwise addition was completed, stirring was continued for 12 hours. The product was centrifuged, washed, dried, and ground to obtain a beige powdery sample, which was the MIL-100(Fe) composite (named Amim@MIL-100(Fe)) anchored by the ionic liquid AmimCl as the positive charge carrier. -2:3).

Embodiment 3

[0031] Step 1. Dissolve 0.317g of 1-allyl-3-methylimidazole chloride (AmimCl) in 10ml of water to prepare an aqueous AmimCl solution, and dissolve 0.315g of trimesic acid (BTC) in 10ml of methanol to prepare methanol containing BTC solution;

[0032] Step 2. Get 0.54g ferric chloride hexahydrate (FeCl 3 ·6H 2O) be dissolved in the 10ml AmimCl aqueous solution prepared by above-mentioned step (1), obtain solution C;

[0033] Step 3. Add 10 ml of the methanol solution containing BTC in step 1 dropwise to the solution C under stirring at room temperature, and the dropping rate is 1-2 drops / second. After the dropwise addition was completed, stirring was continued for 12 hours. The product was centrifuged, washed, dried, and ground to obtain a beige powdery sample, which was the MIL-100(Fe) composite with ionic liquid AmimCl anchored as a positive charge carrier (named Amim@MIL-100(Fe) ). -3:3).

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Abstract

The invention provides a method for preparing a recyclable and fast demulsification MIL-100 (Fe) composite material. The present invention is at room temperature, mixed ionic liquid and Fe (Ⅲ) metal salt solution, by Fe 3+ Ionic liquids were encapsulated in the pores of MIL-100(Fe) by self-assembly with trimesic acid, and MIL-100(Fe) composites anchored by ionic liquids as positive charge carriers were prepared. The MIL-100(Fe) composite material prepared by the present invention breaks quickly within 30s, which can realize large-flux treatment of emulsified oily wastewater; the MIL-100(Fe) composite material still maintains a high demulsification after multiple uses The ability to realize the reuse of MIL-100(Fe) composite materials is beneficial to reduce the operating costs of emulsified oily wastewater pollution remediation and demulsification applications in the petroleum industry. Therefore, the present invention has important potential application value in fields such as environmental pollution remediation and petroleum industry.

Description

technical field [0001] The invention relates to the technical field of metal-organic framework composite material preparation, in particular to a preparation method and application of a high-efficiency demulsifier that can be used in the fields of environmental pollution remediation and petrochemical industry. Background technique [0002] Oily wastewater pollution is a water pollution that has received widespread attention in recent years. A non-emulsified oil-water mixture that can be spontaneously separated and then removed from water bodies by combustion, physical skimming, absorption, and biodegradation. However, the emulsified oily wastewater has higher stability and smaller droplet size and is uniformly dispersed in the water, which makes it more difficult to remove the emulsified oily wastewater from the polluted water body. For this reason, emulsion separation is one of the key areas in the current environmental pollution remediation field; among them, demulsificat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/40B01D17/04C02F101/32
CPCC02F1/40B01D17/047C02F2101/32
Inventor 周莹王锐张瑞阳张骞范雷倚黄泽皑
Owner SOUTHWEST PETROLEUM UNIV
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