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Method for preparing nano rutile from sub-molten salt modified low-grade titanium slag

A nano-rutile, low-grade titanium technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problem of high element content, achieve environmental protection, good promotion and application prospects, and achieve the effect of large-scale production

Pending Publication Date: 2022-05-10
YUNNAN MINZU UNIV
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Problems solved by technology

[0004] The problem of high content of impurity elements such as Si and Ca in the preparation of nano-artificial rutile by sub-molten salt method modified titanium slag

Method used

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  • Method for preparing nano rutile from sub-molten salt modified low-grade titanium slag
  • Method for preparing nano rutile from sub-molten salt modified low-grade titanium slag
  • Method for preparing nano rutile from sub-molten salt modified low-grade titanium slag

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all conventional products that could be purchased from the market.

[0031] An artificial rutile and a method for producing artificial rutile by using titanium-containing blast furnace slag are described in detail below.

[0032] A method for preparing nanometer rutile by modifying low-grade titanium slag with sub-molten salt is provided, and the method includes the following steps:

[0033] a. Mix NaOH-KOH (molar ratio 1:1), deionized water and titanium slag into the muffle furnace ac...

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Abstract

The invention discloses a method for preparing nano rutile from sub-molten salt modified low-grade titanium slag, and relates to the technical field of microwave metallurgy. The nano-scale artificial rutile is prepared by combining a sub-molten salt method and a microwave technology. The method comprises the following steps: a, mixing NaOH-KOH sub-molten salt and titanium slag, and putting the mixture into a muffle furnace for roasting modification; and b, carrying out water leaching, washing and filtering treatment on the roasted product. And c, mixing the washed filter residues with acid, carrying out acid leaching, washing and filtering. And d, leaching with NaOH alkali liquor, washing and drying. And e, calcining in a microwave muffle furnace to obtain the nano artificial rutile finished product. According to the method, the titanium slag is recycled, the environment is protected, the purpose of resource recycling is achieved, the roasting temperature is low, energy can be saved, large-scale production can be achieved, and good application and popularization prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of microwave metallurgy, and relates to a method for preparing nanometer rutile by modifying low-grade titanium slag with sub-molten salt. Background technique [0002] In order to solve the problem of shortage of natural rutile, a large number of researchers have turned their attention to artificial rutile. Among them, the preparation of artificial rutile by the molten salt method has problems such as uneven mixing and low reaction chemical activity, and the sub-molten salt method can solve this problem well. The sub-molten salt method is a method that can increase the alkalinity concentration and increase The chemical activity and ionic activity methods have good applications in metallurgy. In addition, microwave heating has the advantages of fast heating rate, energy saving and environmental protection, and can well improve the crystallinity of the product. Contents of the invention [0003] [Technica...

Claims

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Application Information

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IPC IPC(8): C01G23/047C01G23/08B82Y30/00B82Y40/00
CPCC01G23/047C01G23/0475C01G23/08B82Y30/00B82Y40/00C01P2002/72C01P2004/03C01P2004/64
Inventor 高磊郑贺文邱宏菊李倩男凌叶青陈晋陈菓
Owner YUNNAN MINZU UNIV
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