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Preparation method of MIL-100 (Fe) composite material capable of circularly and quickly demulsifying

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: 2020-07-10
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 MIL-100 (Fe) composite material capable of circularly and quickly demulsifying
  • Preparation method of MIL-100 (Fe) composite material capable of circularly and quickly demulsifying
  • Preparation method of MIL-100 (Fe) composite material capable of circularly and quickly demulsifying

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1. Dissolve 0.11g of 1-allyl-3-methylimidazole chloride (AmimCl) in 10ml of water to prepare AmimCl aqueous 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 10mlAmimCl aqueous solution that above-mentioned step (1) prepares, obtain solution A;

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

Embodiment 2

[0027] Step 1. Dissolve 0.228g 1-allyl-3-methyl imidazole chloride (AmimCl) in 10ml water to prepare AmimCl aqueous solution, and dissolve 0.315g trimesic acid (BTC) in 10ml 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 10mlAmimCl aqueous solution that above-mentioned step (1) prepares, obtain solution B;

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

Embodiment 3

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

[0032] Step 2. Get 0.54g ferric chloride hexahydrate (FeCl3 ·6H 2 O) be dissolved in the 10mlAmimCl aqueous solution that above-mentioned step (1) prepares, obtain solution C;

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

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Abstract

The invention provides a preparation method of an MIL-100 (Fe) composite material capable of circularly and quickly demulsifying. The preparation method comprises the following steps: at room temperature, mixing an ionic liquid and a Fe (III) metal salt solution, and encapsulating the ionic liquid in pores of MIL-100 (Fe) through self-assembly of Fe < 3 + > and trimesic acid, thereby preparing theMIL-100 (Fe) composite material anchored by taking the ionic liquid as a positive charge carrier. The MIL-100 (FE) composite material prepared by the preparation method disclosed by the invention canbe used for quickly demulsifying within 30 seconds, so that large-flux treatment of emulsified oily wastewater can be realized; the MIL-100 (Fe) composite material still maintains higher demulsification capacity after being used for multiple times, can be repeatedly utilized, and is beneficial to reducing the operation cost of emulsified oily wastewater pollution remediation and demulsification application in the petroleum industry. Therefore, the method has important potential application value in the fields of environmental pollution remediation, petroleum industry and the like.

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 restoration, petrochemical industry and the like. Background technique [0002] Oily wastewater pollution is a kind of water pollution that has been widely concerned in recent years. Non-emulsified oil-water mixtures that undergo spontaneous separation and are 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 water, making the emulsified oily wastewater more difficult to remove from polluted water bodies. For this reason, emulsion separation is one of the areas of focus in the field of environmental pollution remediation; among them, emulsion breaking ...

Claims

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Application Information

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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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