Selection method for recovering needle-like wollastonite from mixed ores

A needle-shaped wollastonite and mixed ore technology, applied in the direction of solid separation, etc., can solve the problems of low enrichment ratio, coarse sorting particle size, and inability to recover Tc-type wollastonite, so as to achieve the effect of increasing added value

CN110743697AActive Publication Date: 2020-02-04广东五岭硅灰石有限公司

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: 广东五岭硅灰石有限公司
Publication Date: 2020-02-04

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Abstract

The invention belongs to the technical field of non-metal mineral processing, and in particular relates to a selection method for recovering needle-like wollastonite from mixed ores. Mixed wollastonite ores are crushed by crushing equipment in a characteristic force applying mode by means of crushing characteristics and grain shape differences of the needle-like wollastonite and other polymorphicand gangue minerals, so that the grain shape differences are expanded while the needle-like structure is protected. A crushed product is then controlled and screened precisely, so that the needle-likewollastonite is separated effectively, and therefore, the recovery rate of the needle-like wollastonite can be improved effectively.

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Description

technical field

[0001] The invention belongs to the technical field of non-metallic ore mineral processing, and in particular relates to a beneficiation method for recovering acicular wollastonite from mixed ore. Background technique

[0002] Wollastonite is a single-chain silicate mineral, usually in the form of acicular, flaky, radial or fibrous aggregates, with good dielectric properties, high whiteness, high heat resistance and weather resistance, Widely used in ceramics, metallurgy, papermaking, plastics, coatings and other fields. Pure wollastonite is rare in nature, and is often accompanied by minerals such as quartz, calcite, diopside, garnet, etc. It needs to be purified by mineral processing to obtain wollastonite concentrate with high purity and less impurities; in addition, due to the formation of Depending on the conditions, wollastonite has three homogeneous polymorphs, including Tc type wollastonite with triclinic chain structure, commonly known as low temper...

Claims

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