Flotation reagent for high-calcium-magnesium vanadium titano-magnetite and method for preparing chlorinated titanium-rich material from high-calcium-magnesium vanadium titano-magnetite

Abstract

The invention discloses a high-calcium-magnesium vanadium titano-magnetite flotation reagent which comprises a composite reagent, a collecting agent, a regulating agent and an inhibitor, and the composite reagent is composed of synthetic dodecylamine, tall acid and mixed amine. The invention further discloses a method for preparing the chlorinated titanium-rich material from the high-calcium-magnesium vanadium titano-magnetite. The method comprises the step of carrying out flotation by using the flotation reagent for the high-calcium-magnesium vanadium titano-magnetite. The flotation reagent for the high-calcium-magnesium vanadium titano-magnetite has the advantages that the content of impurities in Panxi titanium concentrate can be greatly reduced, and a foundation is laid for post-smelting of high titanium slag meeting the chlorination index requirement; (2) outsourcing titanium concentrate with the particle size of 200-500 meshes is blended with the titanium concentrate, so that the crusting phenomenon in the smelting process can be prevented, the slag overturning risk is reduced, and meanwhile, the comprehensive yield of the titanium element is increased; and 3) the problem that Panxi titanium concentrate is difficult to produce the chlorinated titanium-rich material is solved, and the method has the advantages of short process, low cost and the like.

Description

technical field [0001] The invention relates to a production technology of titanium dioxide, in particular to a production technology of titanium dioxide by chloride method. Background technique [0002] In recent years, as my country's environmental protection policies have become increasingly stringent, the production of sulfuric acid titanium dioxide, which is more polluting in the titanium industry, has been restricted. However, the chloride-based titanium dioxide production technology with less environmental impact and higher technical content is encouraged by the national industrial policy. According to statistics, by the end of 2019, my country's production capacity of chlorinated titanium dioxide has increased to about 400,000 tons per year. Compared with sulfuric acid titanium dioxide production technology, the chlorination method has the advantages of short process, high degree of automation, good product quality, and environmental friendliness, but it also has th...

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Problems solved by technology

Since these two companies have established long-term cooperative relationships with titanium dioxide companies in other countries, the quantity of chloride-rich titanium-rich materials they sell to the Chinese market is limited and the price is high, which is difficult to meet the needs of the development of China's titanium industry.

[0007] 4. Due to the high impurity content and low quality of domestic titanium concentrate, it is necessary to use imported high-quality titanium concentrate to produce qualified titanium chloride slag, and the supply channels of high-quality titanium concentrate are also restricted by Rio Tinto Group, Japan Multinational groups such as Mitsui Group and British Bass Company are monopolized, and their supply quantity, price and other factors are not controlled by the domestic market

The above-mentioned patents can obtain titanium-rich chloride materials with high grade and qualified calcium and magnesium indicators, but the process route is long, the equipment is complicated, the by-product mother liquor is difficult to handle, and the cost is high, so it is difficult to popularize

[0018] The above-mentioned patents can basically obtain high-grade rich raw materials, but due to technical, cost or environmental protection problems, there are few reports on industrial production except for the industrial application of the CN104944466A patent of Billions.

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