Check patentability & draft patents in minutes with Patsnap Eureka AI!

Micro-fine particle mineral flotation recovery method

A technology of mineral flotation and recovery method, applied in flotation, solid separation and other directions, can solve the problems of increasing process complexity, unsatisfactory final indicators, etc. Effect

Active Publication Date: 2020-04-17
湖北省地质实验测试中心
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The applicant found that the existing carrier flotation process still has certain limitations. For example, minerals smaller than 0.01mm are flotation by conventional technology, the final index is not ideal, and for different purpose minerals, the types of carrier minerals need to be adjusted separately. and the amount of addition, and the recovery rate of carrier minerals needs to be considered, which increases the complexity of the process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro-fine particle mineral flotation recovery method
  • Micro-fine particle mineral flotation recovery method
  • Micro-fine particle mineral flotation recovery method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A complex rare earth ore in Hubei, the main rare earth minerals are monazite, bastnaesite, bastnaesite, and allanite, and there are trace amounts of niobium fractalite, bianxigite, pyrochlore, and zircon . The main gangue minerals are calcite, alkali feldspar, muscovite and iron dolomite, followed by biotite, apatite, dolomite and quartz, and the metal minerals are pyrite, pyrrhotite and limonite. The ore has semi-euhedral granular structure, variable porphyritic structure, metasomatized residual structure and disseminated structure. Analysis of electron probe and process mineralogy parameters shows that rare earth useful minerals are embedded with fine particle size, most of them are in the range of 0.01-0.02mm, and the content of -0.02mm is about 70%. The ore was subjected to flotation roughing with hydroxamic acid as a collector, and the comparative test flow chart of the active bubble process and the conventional flotation process is shown in figure 1 , figure 2...

Embodiment 2

[0061] A complex low-grade niobium-bearing ore in Hubei belongs to the alkaline volcanic rock-type niobium deposit. The ore grade is low. The niobium minerals are mainly produced in the form of accessory minerals with low content and fine particle size, which is difficult to observe under a polarizing microscope. The main niobium mineral in the ore is calcite (60.16%), followed by niobite (28.83%), and a small amount occurs in ilmenite and sphene in the form of isomorphism. Niobium minerals are mostly associated with gangue minerals. The main niobium minerals are generally about 0.01mm in particle size, and the particles are small, wrapped in albite, potassium feldspar, apatite, biotite or associated with them. The associated relationship is complicated .

[0062] The mine was flotation with the improved agent DB-11 as the collector, and the active bubble process and the conventional flotation process were used respectively. The flotation flow chart is shown in image 3 , F...

Embodiment 3

[0093] A fine-grained rutile ore has a flaky structure with gray stripes (bands) distributed parallel to the schistospheric direction. It is mainly composed of ordinary hornblende and almandine, and the content is generally 70-90%. Rutile (TiO 2 ) is the most important titanium mineral in the ore, the content is generally 2 to 4%, and the average content is 2.5%, which meets the requirements of industrial grade. The particle size of rutile varies, and the intercalation is closely related to common amphibole. The large ones are 1.5×0.7mm, the small ones are only 0.001mm, and the fine-grained (≤0.02mm) mineral content accounts for about 30%.

[0094] 1. Conventional flotation conditions:

[0095] Test equipment: XFD1.5L laboratory single-slot flotation machine;

[0096] Spindle speed of flotation machine: 1800r / min

[0097] Single test ore quantity: 500g;

[0098] Grinding fineness: -0.074mm accounts for 90-95%

[0099] Activator lead nitrate is made into concentration and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a micro-fine particle mineral flotation recovery method, which comprises the following steps: 1) preparing a collecting agent solution, and then adding non-polar oil and a foaming agent to prepare a mixed solution; 2) taking ore pulp, adding the mixed solution prepared in the step 1), and adding one or a plurality of materials selected from a regulator, an inhibitor and an activator; and 3) introducing air into the ore pulp obtained in the step 2), and performing flotation and bubble scraping to obtain flotation concentrate. According to the method, the foaming agent isadded into the collecting agent solution in advance, the shearing force is increased through strong stirring, and under the condition of the selected temperature, small and dense active bubbles are generated in the collecting agent solution by combining the action of non-polar oil, so that the collecting agent can be attached to the surfaces of the bubbles so as to increase the contact surface ofthe collecting agent and mineral particles, and the small and dense bubbles are beneficial to attachment and recovery of the micro-fine particle minerals so as to improve the collecting capacity of the target minerals and improve the recovery rate index of micro-fine particle mineral flotation.

Description

technical field [0001] The invention belongs to the technical field of flotation beneficiation, and in particular relates to a flotation recovery method for microfine minerals. [0002] technical background [0003] At present, with the continuous development and utilization of mineral resources, the resources tend to be more and more "poor, fine and miscellaneous", which brings difficulties to mineral sorting. Micro-fine ore particles have the characteristics of large specific surface area and high surface energy. During the process of pulp transportation, the momentum is low and the inertia is small. Under the current mineral processing technology conditions, carrier flotation or chemical mineral processing is generally used to separate fine-grained minerals. However, chemical beneficiation has the disadvantages of high consumption and high pollution, and the general cost is high, so its application has great limitations. [0004] The carrier flotation process can also be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03D1/00B03D1/018B03D2203/02B03D2201/06B03D2201/02B03D2201/04B03D2201/007Y02P10/20
Inventor 刘爽林璠黄鹏康健李健鲁力唐兴敏
Owner 湖北省地质实验测试中心
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com