Modified dodecylamine collector, preparation method and application thereof

By modifying the surface of dodecylamine molecules by introducing active groups, the adsorption capacity of the modified dodecylamine collector for quartz is enhanced, solving the problem of insufficient collector selectivity in the existing technology, and realizing efficient separation of quartz and hematite and cost reduction.

CN122141862APending Publication Date: 2026-06-05SONGXIAN SHANJIN MINING CO LTD +1
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Patent Information

Application Number
CN202610604713.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing dodecylamine collectors have limited ability to collect fine-grained quartz, lack selectivity, resulting in quartz loss in tailings, and are costly and difficult to efficiently separate quartz from hematite.

Method used

A modified dodecylamine collector was prepared by introducing oxygen- and/or nitrogen-containing active groups onto the surface of dodecylamine molecules through glow discharge plasma treatment, thereby enhancing their adsorption capacity and selectivity for quartz.

Benefits of technology

It improves the collection capacity and selectivity for fine-grained quartz, achieves efficient separation of quartz and hematite, and reduces reagent dosage and cost.

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Abstract

The present application relates to the technical field of mineral processing, and particularly relates to a modified dodecylamine collector, a preparation method and application thereof.The preparation method of the modified dodecylamine collector provided by the present application comprises the following steps: carrying out glow discharge air plasma treatment on dodecylamine by taking air as a working gas.The present application introduces oxygen-containing and / or nitrogen-containing active groups on the surface of dodecylamine molecules by means of glow discharge air plasma modification of dodecylamine, and the dodecylamine is used for flotation separation of quartz and hematite, so that the adsorption capacity and selectivity of the dodecylamine to quartz, especially fine quartz, are enhanced, and efficient separation of quartz and hematite can be realized at a lower dosage; and the raw material of the preparation method is green and environmentally friendly, the modification process is low-temperature, safe and controllable, no by-product is generated, and the energy consumption is low.
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Citation Information

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