Bis-phenyl bridged dihydroximic acid flotation collecting agent and preparation method and application thereof
By introducing a symmetrical biphenyl ring rigid framework and bridging structure into the hydroxamic acid molecule, a biphenyl ring bihydroxyxamic acid collector was designed, which solved the problems of insufficient selectivity and hydrophobicity of existing hydroxamic acid collectors and achieved a more efficient mineral flotation effect.
CN121972299APending Publication Date: 2026-05-05NORTHEASTERN UNIV CHINA
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Patent Information
- Application Number
- CN202610393973.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-27
- Publication Date
- 2026-05-05
AI Technical Summary
Technical Problem
Existing hydroxamic acid collectors suffer from problems such as simple structure and insufficient hydrophobicity, resulting in poor selectivity and collection effect in mineral flotation.
Method used
A biphenyl ring hydroxyoxime acid collector was designed by introducing a symmetrical biphenyl ring rigid framework and bridging structure into the molecular structure, thereby increasing two hydroxyoxime acid chelating groups and improving the hydrophobicity and chelating ability of the molecule.
Benefits of technology
It significantly improves the selectivity and collection effect of target oxidized minerals, enhances flotation efficiency, reduces reagent dosage, and achieves higher concentrate grade and recovery rate in complex mineral systems.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of mineral processing and beneficiation reagents, and particularly relates to a double-phenyl-bridged dihydroximic acid flotation collecting agent and a preparation method and application of the double-phenyl-bridged dihydroximic acid flotation collecting agent. The general chemical formula of the biphenyl bridged dihydroximic acid flotation collecting agent is HO-NHC (= O)-Ar-O-R-O-Ar-C (= O)-NHOH; wherein Ar is an aromatic ring group of which the ortho-position is provided with carboxyl or carboxylic ester group; and R is alkylene with 1-8 carbon atoms. The collecting agent with the double-benzene-ring double-hydroximic-acid structure is expected to have higher selectivity, more stable chelation capacity and higher hydrophobicity at the same time, so that the collecting agent shows excellent collecting effect and separation efficiency in the flotation process, and the defects that an existing hydroximic acid agent is insufficient in selectivity, poor in hydrophobicity and the like are effectively overcome.
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