SU772595A1 - Collector for flotation of phosphorus containing minerals from ores - Google Patents

Description

one

The invention relates to the enrichment of minerals and can be used in the flotation of phosphorus-containing minerals from phosphorus-poor ores.

The process of extracting apatite from phosphoric ores by the method of froth flotation using as collectors of oleic acid, synthetic fatty acids, 10 products of processing of raw toloyo oil in combination with various oil products is known.

The disadvantage of these collectors is their scarcity and expensiveness, as well as the impossibility of obtaining flotation concentrates from phosphorus-poor ores suitable for processing into fertilizer.

Phosphorus-containing minerals can be recovered by the reagent, which is obtained after acidizing the distillation residues of vegetable oil — cotton, soybean, tall oil, and petroleum products 2.25

The disadvantage of this reagent is low recovery of phosphorus from a complex and phosphorus-poor raw material.

A collector for the recovery of phosphorus minerals from ores is known,. thirty

containing alkali-treated non-deficient and cheap vat residues of vegetable oils (tall, soybean, etc.) G31.

A significant disadvantage of this collector is the low extraction of the valuable component in the flotation concentrate from poor hard-floated ores, the low speed of the flotation process, the high consumption of the collector and the difficulty of repeated use of recycled water obtained from the condensation of flotation products.

The purpose of the invention is to increase the flotation activity of the collector and, consequently, to extract phosphorus from poor difficult to float ores into a flotation concentrate suitable for processing for fertilizer, to achieve a high selectivity of the process, as well as to reuse the liquid phase.

Claims (3)

This goal is achieved by the fact that the collector on the basis of the bottoms of vegetable oils additionally contains polyalkoxyphosphazencarbamate in the following ratio of components, weight. including: Vat residues of vegetable oils 10-12 Polyalkoxyphosphazene carbamate1 Polyalkoxyphosphazencarbamate is a product of the interaction of chlorophosphazenes with alcohols and carboxylic acid amides (for example, urea). The structural formula of the compound is r t r t I P - I - i - I y - I - I) I NH NH – C – NHo OR I (I. C – 0 0 where X, y 1–5, The polymer of this compound is defined as Polymerization of the used intermediate product — polychlorophosphase. Example: The proposed collector was tested on a poorly difficult-to-float ore with a content of 2-3%. Experiments on the isolation of flotation by apitite are carried out in laboratory conditions with a closed circulation of industrial fluids and circulation obtained from condensation of flotation products according to the scheme including the following operations: 1. Ore grinding, size O, 15 mm., 2. Processing with reagents, kg / t: soda 2.5, liquid glass 0.75, collector 3. Main flotation 4, Five cleaning the concentrate of the main operation. 5. Concentrating industrial products pereistvok and their grinding up to 0.04 with direction to the head of the main flux. Promprodukt I is connected to the tailings of the main flotation. turnover - in the head of the process. As collectors, I use bottom residues of vegetable oils with the addition of polyalkoxyphosphazencarbamate and without addition, as well as fatty acid flotation of tall oil (GHTM) and a mixture of synthetic C. fatty acids with bottom residues. All collectors are introduced into the flotation process after being treated with soda at 80-85 ° C in the form of a 2.5% aqueous solution. An analysis of the data obtained suggests that the proposed collector with the expenses of the bottoms of vegetable oils 750-800 g and polyalkoxyphosphazencarbamate 75-, 90 g / t allows to obtain a flotation core containing also the sum of 1.5% Fe and L1 oxides ) with the extraction of phosphorus v 75%. Of these flotation carbonates, conditional phosphate fertilizers were obtained under laboratory conditions. The use of well-known collectors does not allow more than 30% of this ore sample to be recovered into the flotation concentrate. In addition, when bottoms of vegetable oils are used as a collector at a flow rate of 1.5 kg / t, a slowed down kinetics of the flotation process is observed, and the use of circulating solutions obtained from the condensation of flotation products is also difficult. When the flotation products obtained according to the regime with only the bottoms of vegetable oils as the collector are concentrated, the consumption of polyacrylamide is increased to 100,120 g / t, and also the time of settling is increased several times. When fed during flotation to isolate apatite of other collectors (GCTM and mixture consisting of bottoms of vegetable oils and synthetic fatty acids Sp-go, it is not possible to obtain foamy products containing 17-18%. The content of solid oxides is on the level not 9-10%, which makes it difficult to obtain ir-conditioned phosphate fertilizers. Thus, the use of the proposed collectors of phosphorus-containing minerals can significantly increase the recovery of poorly flooded ores in the flotoko concentrate, suitable for the production of fertilizers (up to 75%); increase the speed of the process of flotation of phosphorus-containing minerals by 2-2.5 times; reduce the consumption of bottoms of vegetable oils 1.5-2 times; reuse during the flotation the liquid phase obtained from the concentration of products The collector for flotation of phosphorus-containing minerals from ores based on the bottoms of vegetable oils, characterized in that, in order to increase the collector's flotation activity, it additionally contains Polyalkoxyphosphazencarbam sledukadem at a component ratio, wt. including: Vat residue of vegetable oils, 10-12 Polyalkoxyphosphazencarbamate 1 Sources of information taken into account during the examination 1, USSR Author's Certificate 236372, cl. B 03 D 1/02, 1967. 2. US patent number 3032195, CL 209-166, 1957. 3. U.S. Patent 3,032,196, Cl. 209-166, 1957.