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Preparation method of seaweed cellulose aerogel-carbamic acid alkyl ester type oil gelling agent composite oil spill control material

An alkyl carbamate, seaweed cellulose technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as poor oil retention rate, and achieve low cost, less secondary pollution, and good biodegradability. Effect

Active Publication Date: 2014-08-20
HARBIN INST OF TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oil-absorbing agents can effectively absorb oil spills, but sometimes there are disadvantages such as poor oil retention rate, while oil-gelling agents can effectively gel the oil phase effectively, and the oil-retaining performance is much higher than that of general oil-absorbing materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0023] Specific implementation mode 1: In this implementation mode, seaweed cellulose airgel-alkyl carbamate oil coagulant composite type oil spill control material is prepared according to the following steps:

[0024] Step 1, Preparation of Hydrophobic Seaweed Cellulose Airgel:

[0025] ① Purification and refinement of seaweed cellulose: Accurately weigh 2 g of dried Enteromorpha, put it in a Soxhlet extractor, and extract it in 30 mL of ethyl acetate-ethanol solution with a volume ratio of 2:1 at 90 °C. Extract for 6h, remove the lipid extract. The polysaccharide was extracted with sodium carbonate solution at 60°C, and the enteromorpha residue was obtained after filtration. Oxidation was carried out with sodium chlorite under acidic conditions (pH=4~5, adjusted by glacial acetic acid), and the oxidatively bleached sample was treated with potassium hydroxide to remove protein and remaining polysaccharides. Finally, use dilute hydrochloric acid at 80°C to remove ...

specific Embodiment approach 2

[0032] Specific implementation mode 2: In this implementation mode, seaweed cellulose airgel-alkyl carbamate oil coagulant composite type oil spill control material is prepared according to the following steps:

[0033] Step 1, Preparation of Hydrophobic Seaweed Cellulose Airgel:

[0034] ① Purification and refinement of seaweed cellulose: Accurately weigh 2 g of dried Enteromorpha, put it in a Soxhlet extractor, and extract it in 20 mL of ethyl acetate-ethanol solution with a volume ratio of 2:1 at 90 °C. Extract for 6h, remove the lipid extract. The polysaccharide was extracted with sodium carbonate solution at 60°C, and the enteromorpha residue was obtained after filtration. Oxidation was carried out with sodium chlorite under acidic conditions (pH=4~5, adjusted by glacial acetic acid), and the oxidatively bleached sample was treated with potassium hydroxide to remove protein and remaining polysaccharides. Finally, use dilute hydrochloric acid at 80°C to remove in...

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Abstract

The invention discloses a preparation method of a seaweed cellulose aerogel-carbamic acid alkyl ester type oil gelling agent composite oil spill control material and relates to a preparation method of a porous network-like structural material integrating hydrophobic, lipophilic and oil gelling properties. The method specifically comprises the following steps: step 1) preparing a hydrophobic seaweed cellulose aerogel; step 2) preparing a carbamic acid alkyl ester type oil gelling agent; step 3) preparing the seaweed cellulose aerogel-carbamic acid alkyl ester type oil gelling agent composite material. According to the method, natural, renewable and seaweed cellulose harmful to the environment is adopted as raw material for preparing an oil-absorbing material, the oil-absorbing material is effectively compounded with the oil gelling agent to prepare the oil spill control material integrating the oil gelling property of anoil gelling agent and the oil-absorbing property of an oil-absorbing agent; and the oil spill control material is capable of effectively absorbing and gelling oil products, organic solvents and other pollutants which are leaked into water.

Description

technical field [0001] The invention relates to a preparation method of a porous network structure material having both hydrophobic-lipophilic-oil-condensing properties, in particular to a composite oil spill treatment material of seaweed cellulose airgel-alkyl carbamate oil-condensing agent Preparation. Background technique [0002] With the increasing development of the global economy, the demand for oil and its products is getting higher and higher, and many serious oil spill pollution accidents have occurred in the process of oil extraction and transportation. According to statistics, 3000-5000kt of oil spilled into the sea due to various accidents in the world every year has caused a huge waste of resources and seriously endangered the natural ecological environment. For example, in 2010, the crude oil spill accident in the Gulf of Mexico caused huge and irreversible trauma to the local environment; Entering the waters of Qingdao also brought great harm to the safety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C08L1/02C08K5/205C09K3/32
Inventor 刘宇艳王永臻刘振国马涛吴松全
Owner HARBIN INST OF TECH
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