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Calcined shell micropore structure-based sea surface oil stain treatment micropowder preparation method

A technology of microporous structure and shell powder, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of secondary marine pollution, insufficient oil absorption capacity, poor degradability of porous high oil absorption polyelectrolyte resin, etc. Good buoyancy and strong oil absorption

Inactive Publication Date: 2016-08-10
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned technical solution solves the shortcoming of insufficient oil-absorbing capacity of the existing high-oil-absorbing resin to a certain extent, but the degradability of the porous high-oil-absorbing polyelectrolyte resin is poor, which will cause secondary pollution to the ocean, which is not in line with the current concept of green environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing sea surface oil pollution treatment micropowder based on the microporous structure of calcined shells, comprising the following steps, and the parts of the following substances are all parts by weight:

[0027] A. Calcinate the cleaned shells at 400°C for 35 minutes, then raise the temperature to 780°C within 10 minutes, calcine at constant temperature for 7.5 minutes, then cool down to 500°C within 7.5 minutes, and then cool naturally to room temperature. Wherein said shell is mussel.

[0028] B. The calcined shells are crushed into shell powder particles with a particle size of 900 mesh, the shell powder particles are mixed with a surface modifier and ground, and the surface modified shell powder is obtained after grinding. Among them, the mass of the surface modifier is 3.5% of the shell powder particles, the surface modification temperature is 85°C, and the time is 45 minutes. The surface modifier is sodium stearate.

[0029] C. Mix 100 part...

Embodiment 2

[0033] A method for preparing sea surface oil pollution treatment micropowder based on the microporous structure of calcined shells, comprising the following steps, and the parts of the following substances are all parts by weight:

[0034] A. Calcinate the cleaned shells at 300°C for 50 minutes, then raise the temperature to 700°C within 10 minutes, calcine at constant temperature for 10 minutes, then cool down to 400°C within 5 minutes, and then cool naturally to room temperature. Wherein said shell is scallop.

[0035] B. Crushing the calcined shells into shell powder particles with a particle size of 300 meshes, mixing the shell powder particles with a surface modifier and grinding them to obtain surface-modified shell powder. Among them, the quality of the surface modifier is 3% of the shell powder particles, the surface modification temperature is 75°C, and the time is 55 minutes. The surface modifier is sodium dodecylbenzenesulfonate.

[0036] C. Mix 100 parts of surf...

Embodiment 3

[0040] A method for preparing sea surface oil pollution treatment micropowder based on the microporous structure of calcined shells, comprising the following steps, and the parts of the following substances are all parts by weight:

[0041]A. Calcinate the cleaned shells at 500°C for 20 minutes, then raise the temperature to 850°C within 10 minutes, calcine at constant temperature for 5 minutes, then cool down to 600°C within 10 minutes, and then cool naturally to room temperature. Wherein said shell is pearl oyster.

[0042] B. The calcined shells are crushed into shell powder particles with a particle size of 1500 meshes, the shell powder particles are mixed with a surface modifier and ground, and the surface modified shell powder is obtained after grinding. Among them, the mass of the surface modifier is 4% of the shell powder particles, the surface modification temperature is 95°C, and the time is 35 minutes. The surface modifier is sodium stearate.

[0043] C, 100 parts...

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Abstract

The invention relates to the field of sea surface oil stain treatment and discloses a calcined shell micropore structure-based sea surface oil stain treatment micropowder preparation method. The preparation method comprises A, calcining shells at a temperature of 300-500 DEG C for 20-50min, heating the shells to a temperature of 700-850 DEG C in 10min, carrying out constant temperature calcining for 5-10min, carrying out cooling to a temperature of 400-600 DEG C in 5-10min and carrying out natural cooling to the normal temperature, B, breaking the shells to obtain shell micropowder and carrying out surface modification, C, carrying out mixing foaming on the surface-modified shell powder, carboxymethylcellulose, polyether polyol, isocyanate, a catalyst and water to obtain a hard foam material and D, crushing the hard foam material to obtain a finished product. The oil stain treatment micropowder has a good oil-absorption capability and good dispersibility and floatability on the sea surface, can be degraded naturally and is environmentally friendly.

Description

technical field [0001] The invention relates to the field of sea surface oil pollution treatment, in particular to a preparation method of sea surface oil pollution treatment micropowder based on the microporous structure of calcined shells. Background technique [0002] The transportation of bulk petroleum and petroleum products mainly relies on sea transportation. During the loading and unloading process, oil products will inevitably leak, or even cause major accidents, which will pollute the ocean, especially the seawater in the port area, causing environmental impact and even ecological damage. To reduce the harm caused by this leakage and leakage, people have taken various remedial measures. At present, chemical reagent method and physical adsorption method are mostly used. The method of chemical reagent is mainly to use surfactant as oil displacement agent to disperse and dissolve free oil molecules in seawater through the action of surfactant. This method Although th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/54C08L75/04C08L1/28C08K9/04C08K7/24C09K3/32
CPCC08G18/542C08L75/04C09K3/32C08G2110/0025C08G2110/0083C08L1/286C08K9/04C08K7/24
Inventor 高良军朱根民竺柏康高建丰竺振宇张红玉董丽颖
Owner ZHEJIANG OCEAN UNIV
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