CN103639065A - Preparation method for carbonic mud barite flotation collector - Google Patents

Abstract

The invention discloses a preparation method for a carbonic mud barite flotation collector. The raw materials of the carbonic mud barite flotation collector comprise, by weight, 70-80% of oleic acid, 15-20% of a surface active agent and 5-10% of a modifying agent. The preparation method comprises the steps that the oleic acid is added into a container at first, then the surface active agent and the modifying agent are matched to be a 5-10% water solution to be slowly added into the container, and adding and stirring are conducted at the same time; the water solution is mechanically activated for 2-3h at the normal temperature, after mechanical activation, the water solution is intensively dispersed through ultrasonic waves for 1-2h, and then a mixed solution, namely the target collector is obtained. The preparation method is simple and reliable, and easy to operate. Compared with a common barite collector, the carbonic mud barite flotation collector prepared based on the preparation method has the advantages of being high in dispersity and selectivity, the dosage of reagents is reduced by 1/4-1/3 in the using process, the good barite quality and recovery rate are obtained, and the preparation method is particularly suitable for grading carbonic mud barites.

Description

A kind of preparation method of carbon-containing mud-containing barite flotation collector

1. Technical field

The invention relates to a preparation method of an ore flotation collector, in particular to a preparation method of a carbon-containing mud-containing barite flotation collector.

2. Background technology

At present, collectors widely used in the flotation of barite at home and abroad include oxidized paraffin soap, sodium oleate, oleic acid, alkyl sulfate, alkyl sulfonate, amines, etc. There are many studies on flotation barite collectors at home and abroad. Related papers include "New collectors for flotation barite" by H.B. Seriflova, "A-22 synthesis and beneficiation test "Research", "Research on Mixed Collectors in Flotation Separation of Fluorite and Barite" by Mao Jufan, etc.; related patents include Chinese patent application CN201110122581.2, which discloses a mineral processing collector and its preparation method. Chinese patent application CN201210085130.0 discloses a mineral processing collector and its use method, and Chinese patent application CN200310106582.3 discloses a preparation method of a barite flotation collector. However, there are no related reports on the research on carbon-containing and mud-containing barite flotation collectors. The use of the above-mentioned collectors to recover carbon-containing and mud-containing barites results in a large dosage of agents and high production costs. Therefore, it is particularly urgent to study and prepare a carbon-containing mud-containing barite flotation collector.

3. Contents of the invention

The purpose of the present invention is to provide a method for preparing a carbon-containing mud-containing barite flotation collector. The prepared barite collector can effectively weaken the adverse effects of carbonaceous matter and ore slime, so that the dosage of the agent can be effectively reduced. , the sorting index is good.

The object of the present invention is achieved in this way, a preparation method of a carbon-containing mud-containing barite flotation collector is composed of the following raw materials by weight percentage: 70-80% of oleic acid, 15-20% of surfactant, adjusted Add 5% to 10% of the agent, first add oleic acid into the container, then make the surfactant and regulator into 5% to 10% aqueous solution and slowly add it into the container, stir while adding; then mechanically activate at room temperature for 2 ~ 3h, after mechanical activation, use ultrasound to strengthen dispersion for 1-2h, and the resulting mixed solution is the target collector.

The surfactant is at least one of sodium oleate, sodium lauryl sulfate, and sodium dodecyl sulfate, and the regulator is at least one of sodium hydroxide, sodium carbonate, and lime.

The outstanding advantages of the present invention are:

1. After mechanically activating oleic acid, ultrasonic waves are used to strengthen dispersion to generate a new type of collector with high dispersibility and high selectivity.

2. Improve the dispersion performance of collectors, avoid the problem of large amount of conventional barite collectors, and reduce the amount of collectors by 1/4 to 1/3.

3. The prepared collector has good selectivity, and better barite grade and recovery rate can be obtained when selecting carbon-containing and muddy barite.

4. Specific implementation

The technical solution of the present invention will be further described below through specific examples.

Example 1

The first example of the preparation method of the carbon-containing mud-containing barite flotation collector described in the present invention.

To prepare the collector of the present invention of 100g, get oleic acid 75g, sodium lauryl sulfate 19g, sodium carbonate 6g, comprise the steps:

(1) Make sodium lauryl sulfate into 10% aqueous solution, and sodium carbonate into 10% aqueous solution;

(2) Pour oleic acid into the container, slowly add sodium lauryl sulfate aqueous solution and sodium carbonate aqueous solution, stir while adding, and then mechanically activate at room temperature for 2 hours;

(3) After mechanically activating the above mixed solution for 2 hours, use ultrasonic waves to strengthen dispersion for 2 hours, and the resulting mixed solution is the finished collector.

Example 2

The second example of the preparation method of the carbon-containing mud-containing barite flotation collector described in the present invention.

To prepare the collector of the present invention of 100g, get oleic acid 80g, sodium lauryl sulfate 15g, sodium carbonate 5g, its preparation method is:

(1) Make sodium lauryl sulfate into 10% aqueous solution, and sodium carbonate into 10% aqueous solution;

(2) Pour oleic acid into the container, slowly add sodium lauryl sulfate aqueous solution and sodium carbonate aqueous solution, stir while adding, and then mechanically activate at room temperature for 3 hours;

(3) After mechanically activating the above mixed solution for 3 hours, use ultrasonic waves to strengthen dispersion for 1 hour, and the resulting mixed solution is the finished collector.

Example 3

This example is the collection agent prepared as described in Example 1 and Example 2 and the commonly used barite collector oxidized paraffin soap, oleic acid, sodium oleate, sodium lauryl sulfate to select carbon-containing mud weight The comparative test results of spar ore are shown in Table 1. One rough, one sweep and four fine processes are used to flotation barite. Barite raw ore contains 66.50% barium sulfate and 0.74% carbon.

Table 1 Comparative test results

As can be seen from Table 1, after adopting the barite collector prepared by the present invention, compared with the conventional barite collector, the dosage of the agent is reduced by 25%. The average recovery rate increased by 10.07%. Therefore, the barite collector prepared by the invention has strong collecting capacity and good selectivity, and is especially suitable for sorting carbon-containing and mud-containing barite ores.

Claims (3)

1. A method for preparing a carbon-containing and mud-containing barite flotation collector, characterized in that: raw materials and weight ratio components are as follows: 70-80% oleic acid, 15-20% surfactant, 5% regulator ~10%, first add oleic acid into the container, then make surfactant and modifier into 5~10% aqueous solution and slowly add it into the container, stir while adding; then mechanically activate at room temperature for 2~3h , after mechanical activation, use ultrasound to strengthen dispersion for 1-2 hours, and the resulting mixed solution is the target collector. 2. the preparation method of carbon-containing mud-containing barite flotation collector according to claim 1 is characterized in that: the surfactant is sodium oleate, sodium lauryl sulfate, lauryl at least one of sodium sulfonates. 3. The preparation method of carbon-containing mud-containing barite flotation collector according to claim 1, characterized in that: the regulator is at least one of sodium hydroxide, sodium carbonate and lime.