Mineral processing agent

Product introduction

The reagents used in the flotation process are called flotation reagents. The main function of flotation reagents is to improve the hydrophobicity of mineral surfaces and the firmness of their adhesion to bubbles. Therefore, one of the purposes of using flotation reagents in the flotation process is to increase the hydrophobicity difference between mineral particles.

Performance Features

1. Before selecting the type of flotation reagent, Xinhai Mining Research Institute will first understand the process mineralogical properties of the ore to be separated, including: Chemical composition and content; the ore is a sulfide ore/oxidized ore, and the degree of oxidation of the sulfide ore; the types, contents, particle sizes of useful minerals and gangue minerals, and their interrelationships; associated precious metals and scattered materials that may be recovered Distribution of metals.

2. When performing the flotation process, Xinhai Mining Research Institute recommends selecting an appropriate dosage range of flotation reagents based on the mineral processing test results. In the actual production process, if the material composition of the ore changes, Xinhai Mining Research Institute will also adjust the dosage of flotation reagents according to the specific circumstances. Otherwise, the dosage of flotation reagents cannot be changed arbitrarily.

How it works

dosing location

Collecting agent: Add foaming agent to the stirring tank or flotation machine, while insoluble collectors (such as cresol black powder, white powder, kerosene, etc.) are often added to the mill to promote their dispersion. Increase the interaction time with minerals.

Adjuster:Add the adjuster into the ball mill first, so that the inhibitors and collectors can work in the appropriate slurry, and at the same time eliminate certain "unavoidable ions" that are harmful to flotation.

Inhibitors:Add them into the ball mill before the collector, so that the inhibitors can react with the inhibited minerals as early as possible.

Activator:It is often added to the mixing tank and stirred with the slurry for a period of time to promote interaction with the activated minerals.

Dosing sequence

Xinhai Mining Research Institute will determine the dosing sequence according to the situation:

Flotation raw ore:PH adjuster - absorbing agent - foaming agent.

Minerals whose flotation is inhibited: Activator-collector-frothing agent.

Dosing method

One-time addition: Before the roughing operation, the flotation chemicals are added together in one go.

Scope of application:Generally for agents that are easily soluble in water, will not be taken away by foam, and are not easy to react and become ineffective in the slurry, such as lime, soda, etc.

Advantages: High concentration of chemicals, easy to add.

Batched addition: Add in batches along the rough selection, selection, and sweep operation lines. Generally, 60% to 70% of the total amount is added before flotation, and the rest is added to appropriate locations in batches.

Scope of application: Agents that are easy to oxidize, decompose, react and deteriorate, such as xanthate, sulfur dioxide gas, etc.; agents that are difficult to dissolve in water and are easily carried away by foam , such as oleic acid, fatty amine collectors; agents with strict dosage requirements, such as sodium sulfide.

Technical parameters