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Rheological phase synthesis method of nano zinc ferrite

A technology of nano-zinc ferrite and zinc sulfate heptahydrate, which is applied in the fields of iron compounds, nanotechnology, nanotechnology, etc., can solve the problems of high equipment requirements, complex, expensive raw materials, operation process, etc.

Inactive Publication Date: 2020-12-04
GANSU AGRI UNIV
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  • Application Information

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Problems solved by technology

[0005] At present, the preparation methods of nano-zinc ferrite mainly include hydrothermal method, shock wave method, co-precipitation method, sol-gel method, metal-organic thermal decomposition method, etc. Although the above processes have their own merits, they all have relatively expensive raw materials. Disadvantages such as complicated process and high equipment requirements

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  • Rheological phase synthesis method of nano zinc ferrite
  • Rheological phase synthesis method of nano zinc ferrite
  • Rheological phase synthesis method of nano zinc ferrite

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Embodiment

[0028] Raw material: Ferrous sulfate heptahydrate FeSO4.7H 2 O, analytically pure, Tianjin Fuchen Chemical Reagent Factory; zinc sulfate heptahydrate ZnSO 4 .7H 2 O, analytically pure, Guangdong Chemical Reagent Engineering Technology Research and Development Center; oxalic acid C 2 h 2 o 4 .2H 2 O, analytically pure, Tianjin Best Chemical Co., Ltd.

[0029] method:

[0030] Synthesis of Zinc Ferrite Oxalate Precursor

[0031] Accurately weigh 5.75 g of zinc sulfate heptahydrate, 11.12 g of ferrous sulfate heptahydrate, and 7.94 g of oxalic acid with an electronic balance, and the molar ratio of zinc sulfate, ferrous sulfate, and oxalic acid is 1:2:3.3. Put the weighed zinc sulfate and ferrous sulfate in the mortar, mix them evenly and grind for 15 minutes; In the state of rheological phase, add 7.94 g of weighed oxalic acid, continue to add a small amount of distilled water and grind for 5 minutes, so that the three solid substances and distilled water are fully mixed...

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Abstract

The invention relates to the field of preparation of chemical raw materials, in particular to a rheological phase synthesis method of nano zinc ferrite, which comprises the following steps: uniformlymixing and grinding zinc sulfate heptahydrate, ferrous sulfate heptahydrate and oxalic acid (or ammonium oxalate) according to a certain proportion, adding a small amount of distilled water for many times, and conducting grinding to ensure that the three substances are in a rheological phase; and putting the mixture in the rheological phase into a reaction kettle, putting the reaction kettle intoa drying oven, conducting heating for multiple hours to obtain a zinc ferrite oxalate precursor, sufficiently washing and filtering the zinc ferrite oxalate precursor for multiple times, drying and grinding the obtained filter cake of the zinc ferrite oxalate precursor, and conducting calcining in a muffle furnace for thermal decomposition to obtain the nano zinc ferrite. The nano zinc ferrite issuccessfully prepared through a rheological phase synthesis method, and an energy-saving, efficient and emission-reducing green chemical synthesis route is provided for preparation of the nano zinc ferrite.

Description

technical field [0001] The invention relates to the field of chemical raw material preparation, in particular to a rheological phase synthesis method of nanometer zinc ferrite. Background technique [0002] Zinc ferrite is a relatively stable chemical, non-toxic, harmless and environmentally friendly material, which will not be corroded under light, and has a wide range of functional properties. It is also a soft magnetic yellow-brown anti-corrosion or coloring pigment. It is widely used in coatings, paints, plastics and ceramics. It is mainly used in the treatment of industrial wastewater, desulfurization materials, high-performance wave-absorbing materials, anti-coating materials and flame retardant. agents etc. [0003] In terms of industrial wastewater treatment: Wong et al. studied nano-zinc ferrite treatment of papermaking wastewater using photocatalytic and ultrasonic degradation continuous systems to degrade phenol under visible light irradiation (the wastewater con...

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Application Information

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IPC IPC(8): C01G49/00B82Y30/00
CPCC01G49/00B82Y30/00C01P2002/72C01P2004/04C01P2002/82C01P2004/64Y02P20/10
Inventor 路军王小燕
Owner GANSU AGRI UNIV