SU1382495A1 - Method of dressing ores - Google Patents

Abstract

The invention relates to the enrichment of minerals and m. used for flotation beneficiation of non-sulfide (iron barite) and sulfide ores. The purpose of the invention is to increase the extraction of valuable components and the quality of the concentrate and reduce the consumption of the collector under the conditions of circulating water supply. The feedstock is conditioned with modifiers and collectors. Before the introduction of the collector, the modifier is introduced into the conditioning — the mycelial masses of the producers of antibiotics — erythromycin, neomycin, phenoxymethylpenicillin, which are obtained by separating the liquid phase of the culture fluid in the production of antibiotics. Then the collector is introduced into the air conditioning system and the flotation of valuable components is carried out. Compared to the known method, when using the collector - tri-ethanolamine salt of alkyl sulfate, the extraction of barite is increased by 3.6% with a simultaneous increase in the quality of the flotation concentrate from 82.7 to 87.2%. 3 hp f-ly. I (O

Description

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The invention relates to the enrichment of minerals and can be used for the flotation enrichment of non-sulphide (ferrobarite) and sulphide coils.

The aim of the invention is to increase the extraction of valuable components and the quality of the concentrate and reduce the consumption of the collector under the conditions of circulating water supply.

According to the enrichment method, which includes the sequential processing of the raw material with modifiers and the collector and the flotation of useful components, an additional modifier is introduced in front of the collector — the mycelial masses of the antibiotic producers (production waste), erythromycin, neomycin, phenoxymethylpenicillin (FMP).

Mycelium masses of antibiotic producers (MM PA) are formed as a result of the separation of the liquid phase of the culture fluid in the production of antibiotics. The solid phase of the culture fluid consists mainly of microorganism tissues, nutrient residues and substances introduced into the culture fluid to improve filtration.

The composition of the solid phase of culture liquids, along with mineral substances, includes a wide variety of organic compounds. The inorganic portion of the mycelial mass includes calcium, magnesium, sodium, iron, silicon, and phosphorus compounds. The main components of the organic part of mycelial masses are lipids, carbohydrates, amino acids, proteins. Their content varies widely for various antibiotic producers.

The introduction of the modifier - MLAPA into the pulp processing allows to significantly increase the extraction of the valuable component while simultaneously improving the quality of the flotation concentrates, as well as reducing the cost of expensive collector reagents. Using .MMIL leads to a certain amount of water hardness.

In the enrichment, waste products from the production of antibiotics are used for the first time.

The options for joint submission of soda ash, liquid glass, copper sulphate and collector to the MPA process were checked, since the flotation rates were almost the same.

Example I. Iron-containing barite ore (barite content 17%, quartz 10%, carbonates 25%, iron 30%) were subjected to enrichment.

The ore was crushed to a particle size of 70-75% of the class - 0.074 mm in the presence of an alkaline reagent (soda - 1), and then treated with liquid glass and MPA. Flotation of barite was performed using

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pastes bottom-VN in the presence of higher fatty alcohols.

The collector of BPS-BH is a 5 paste of disodium salts of monoesters of sulfonic acid on the basis of synthetic fatty alcohols from the second uncleaned Ce-C20 fractions.

The MPA was floated before serving by the collector in the form of drops. Since their action in flotation experiments is the same, a modifier was chosen for the large-scale laboratory tests — the mycelial mass of the producer of erythromycin (MMP erythromycin). Experiments were carried out using recycled water obtained in the process of condensation of flotation products. With standard flotation mode, i.e. with the consumption of the paste DNS-VN 0.20-10 / 3 kg / kg without the MMP modifier erythromycin, the extraction of barite is 0% 88%, and with the consumption of DNS-VN 0.15-10 kg / kg and MMP erythromycin 0, 10 kg / t - 88.5%, i.e. 0.6% higher and with a lower consumption of the DNS-BH paste. This increases the quality of concentrate 5 (from 86.1 to 89.3% of BaSO4).

Removing barite without soda ash with a reduced consumption of DNS-VN paste (0.15-10 kg / kg) and with an MMP consumption of erythromycin 0.10 10 kg / kg is 86% with high quality barite Q concentrate 92% BaSO4.

Example 2. When enriching ferrobarite ore (Example I), TEASAC (a triethanolamine alkyl sulfate salt) is used as a collector.

The scheme of flotation enrichment is the same as in example I.

The extraction of barite in the experiment using LAMP erythromycin (erythromycin production waste) in the amount of 0.1–10 kg / kg increased by 3.7% with an increase in the content of barite in the concentrate from 82.8 to 87.3%.

Consumption collector TEASAS in the experience with the use of MMP erythromycin reduced by half.

Example 3. 5 sulphide ore of a mixed type (oxidation level 30%), with a total sulfur content of 1.2%, was subjected to enrichment.

Butyl xanthate was used as a collector, soda, copper sulphate and MMP erythromycin in a quantity of O - 1.010 kg / kg were used as a collector; in a standard experiment, the consumption of xanthate was 0.22-10 kg / kg.

The addition of MMP erythromycin contributes to an increase in total sulfur recovery by 1.4-2.4% (from 92.5 5 to 94.9%) while reducing the consumption of butyl xanthate from 0.22 to 0.17 kg / ton, those. by 23%.

When using MMP erythromycin in open cycle experiments, the water hardness decreases from 8.5 to 4.8-4.5 meq./l at a modifier consumption of 0.2-0.5 kg / t, which is beneficial for carrying out recycled water supply.

Thus, the use of MMP erythromycin (or neomycin or FMP) in flotation enrichment of ores, both non-sulfide (ferrobarite, etc.) and sulfide, promotes an increase in the extraction of the valuable component: the extraction of barite increases by 0.6% while simultaneously increasing the quality of the flotation concentrate from 86 , 1 to 92.0% when using a collector - pasta DNS-VN; when using the TEASAS collector, the extraction of barite increases by 3.6%, the quality of the concentrate varies from 82.7% to 87.2%: the total sulfur recovery into coarse concentrate increases 1.4-2.4%; reduction in the consumption of expensive reagents: the consumption of the DNS-VN paste is reduced by 25%, TEASAS - by 50%, soda - by 100% (in the case of flotation of iron-barite ores), butyl xanthate - by 23%: and, besides, mind Water hardness during flotation of sulfide ore and maintaining stable hardness in the flotation of iron barite ore, which is beneficial in the implementation of circulating water supply.

Claims (4)

Invention Formula . The method of enrichment of ores, including preconditioning of the raw material with modifiers and collector and flotation of valuable components, characterized in that, in order to increase the extraction of valuable components and the quality of the concentrate and reduce the consumption of collector under the conditions of circulating water supply, the mycelial mass of the antibiotic producer resulting from the separation of the liquid phase of the culture liquid in the production of antibiotics. 2. A method according to claim I, characterized in that the mycelial mass of the producer of erythromycin is introduced into the conditioning as the mycelial mass of the producer of antibiotics. 0 five 20 25 3. The method according to claim 1, characterized in that the mycelial mass of the producer of neomycin is introduced into the conditioning as the mycelium mass of the antibiotic producer. 4. A method according to claim 1, characterized in that the mycelial mass of the producer of phenyxia methi-penicillin is introduced into the conditioning as the mycelial mass of the antibiotic producer.