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Method for producing magnetic adsorption material from mussel shells

A technology of magnetic adsorption materials and mussel shells, applied in separation methods, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of mussel shell waste, easy to produce secondary pollution, large use, etc. Good oil adsorption effect, simple and efficient preparation method

Active Publication Date: 2020-01-24
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing mussel shells are discarded in large quantities and have not been effectively and rationally used, and the existing degreasing materials used to deal with marine pollution are prone to secondary pollution and have relatively large limitations in use. Problem, the present invention provides a method of using mussel shells to prepare magnetic adsorption materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing a magnetic adsorption material using mussel shells, said method comprising the following steps:

[0041] Use mussel shells discarded after meat shell separation in a seafood processing factory as raw materials for grinding until mussel shell powder with a particle size of ≤1 mm is formed, and the obtained mussel shell powder is added to a mixture of manganese sulfate, iron sulfate and sulfuric acid. The salt solution prepared by zinc is adsorbed and impregnated at 60°C for 5 minutes. The molar ratio of manganese ions, iron ions and zinc ions in the salt solution is 50:50:20, and the total molar ratio of manganese ions, iron ions and zinc ions The concentration is 0.5mol / L, and then the mussel shell powder is filtered out and added to a saturated ammonium bicarbonate solution for co-deposition at 5°C for 5 minutes, and finally the solid powder is filtered out, followed by calcination at 600°C for 4 hours and calcination at 1100°C After 8 hours of c...

Embodiment 2

[0043] A method for preparing a magnetic adsorption material using mussel shells, said method comprising the following steps:

[0044] Use mussel shells discarded after meat shell separation in a seafood processing factory as raw materials for grinding until mussel shell powder with a particle size of ≤1 mm is formed, and the obtained mussel shell powder is added to a mixture of manganese sulfate, iron sulfate and sulfuric acid. The salt solution prepared by zinc is adsorbed and impregnated at 40°C for 10 minutes. The molar ratio of manganese ions, iron ions and zinc ions in the salt solution is 45:40:20, and the total molar ratio of manganese ions, iron ions and zinc ions The concentration is 1.5mol / L, and then the mussel shell powder is filtered out and added to a saturated ammonium bicarbonate solution for co-deposition at 10°C for 10 minutes, and one cycle of adsorption impregnation and one co-deposition is carried out for a total of 3 cycles , and finally filter out the s...

Embodiment 3

[0046] A method for preparing a magnetic adsorption material using mussel shells, said method comprising the following steps:

[0047]Use mussel shells discarded after meat shell separation in a seafood processing factory as raw materials for grinding until mussel shell powder with a particle size of ≤1 mm is formed, and the obtained mussel shell powder is added to a mixture of manganese sulfate, iron sulfate and sulfuric acid. The salt solution prepared by zinc is adsorbed and impregnated at 50°C for 10 minutes. The molar ratio of manganese ions, iron ions and zinc ions in the salt solution is 55:60:20, and the total molar ratio of manganese ions, iron ions and zinc ions The concentration is 1.0 mol / L, then the mussel shell powder is filtered out and added to a saturated ammonium bicarbonate solution for co-deposition at 5°C for 10 min, and one cycle of adsorption impregnation and one co-deposition is carried out for a total of 5 cycles , and finally filter out the solid powd...

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Abstract

The invention relates to the technical field of magnetic materials, in particular to a method for producing a magnetic adsorption material from mussel shells. The method comprises with the mussel shells as a raw material, conducting grinding, adding mussel shell powder obtained from grinding into a salt solution containing manganese ions, iron ions and zinc ions for adsorption and dipping, then filtering out the mussel shell powder, adding the mussel shell powder into deposition liquid containing carbonate radicals or bicarbonate radicals for co-deposition, and after solid powder is filtered out, conducting calcining treatment to obtain the magnetic adsorption material. The production method is concise and efficient; the mussel shells can be effectively and reasonably recycled; and the formed magnetic adsorption material can achieve a good oil adsorption effect, and is convenient to recover.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to a method for preparing magnetic adsorption materials by using mussel shells. Background technique [0002] Mussel (scientific name: Mytilus edulis), also known as sea rainbow, also called mussel, is a bivalve mollusc with a dark brown shell that lives on seashore rocks. Distributed in China's Yellow Sea, Bohai Sea and East China Sea coast. The mussel shell is wedge-shaped, with a tapered front end and a broad and round back end. Generally, the shell length is 6-8 cm, and the shell length is less than twice the shell height. The shell is thin. The top of the shell is near the front end of the shell. The two shells are equal, left and right symmetrical, the surface of the shell is purple-black, with luster, the growth lines are fine and obvious, and grow in a ring form from the top. [0003] It is a common edible shellfish and is also processed in large quantities a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/30B01J20/06C02F1/28B01D17/022C02F103/08
CPCB01J20/28009B01J20/041B01J20/06B01J20/28014B01J20/3028C02F1/28B01D17/0202B01J2220/4881B01J2220/4806C02F2103/08
Inventor 王阳光欧阳小琨王南杨立业
Owner ZHEJIANG OCEAN UNIV
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