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Flotation collector solvent for recovering tantalum-niobium from granitic pegmatite tantalum-niobium ore and application thereof

A technology for pegmatite and tantalum-niobium ore, which is applied in flotation, solid separation and other directions, can solve the problems of high flotation cost, large dosage of reagents, and pollute the environment, so as to reduce the cost of flotation reagents and improve the recovery rate of flotation. , the effect of improving the collection capacity

Active Publication Date: 2019-01-18
淄博特斯博新材料科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] Collectors for tantalum-niobium ore include carboxylic acids and their soaps, which have strong collection capacity but poor flotation selectivity; phosphonic acid collectors include styrene phosphonic acid and alkylamine dimethyl bisphosphonic acid Etc., the selectivity is better, but the agent dosage is big, and the flotation cost is high; Arsonic acid collector has benzyl arsenic acid and toluene arsenic acid, and its agent effect is good, but its toxicity is big, pollutes environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A granite pegmatite tantalum-niobium mine in Jiangxi, in which (TaNb) 2 o 5 content of 0.0312%,; the main tantalum-niobite minerals in the ore are tantalum-niobite and fine crystal; gangue minerals are mainly quartz, feldspar, mica and topaz; The particle size is finer, and the shape is thinner plate, which is not conducive to gravity recovery, so the method of full flotation is used for the recovery of tantalum and niobium. Grind the ore to -0.074mm to account for about 75-80%, and then add sodium carbonate, 200g / t water glass, 250g / t (by hydroxamic acid mass) hydroxamic acid compound, 200g / t ( Auxiliary collector based on fatty acid mass) and No. 2 oil slurry of 20g / t, the mixing time of each agent is 3 minutes; The rough concentrate and tailings obtained from the beneficiation operation are respectively subjected to closed-circuit flotation of two beneficiation operations and two sweeping operations (the middle ore returns in sequence) to obtain the tantalum-niobiu...

Embodiment 2

[0024] The fine-grained high-strength magnetic separation concentrate of a granite pegmatite tantalum-niobium ore in Fujian, in which (TaNb) 2 o 5 The content of tantalum and niobium in the ore is 0.0273%; the main tantalum and niobium minerals in the ore are tantalum, niobium and manganese ore; the gangue minerals are mainly quartz, feldspar and mica; the tantalum and niobium of the fine-grained strong magnetic concentrate is pre-enriched by flotation . Add sodium carbonate, 600g / t water glass, 250g / t (by hydroxamic acid mass) hydroxamic acid compound, 100g / t (by fatty acid mass) Auxiliary collectors and 20g / t No. 2 oil are mixed, and the mixing time of each agent is 3 minutes; Concentrate and tailings are respectively subjected to a closed-circuit flotation of a beneficiation operation and a scavenging operation (the middle ore is returned sequentially) to obtain tantalum-niobium concentrate and the final tailings; the beneficiation operation does not add any chemicals, an...

Embodiment 3

[0028] A granite-pegmatite tantalum-niobium ore in Jiangxi Province used gravity separation-fine mud flotation to enrich and recover tantalum and niobium; the fine mud (TaNb) 2 o 5 content of 0.0331%; the main tantalum-niobium minerals in the ore are tantalum-niobite and fine crystal; the gangue minerals are mainly quartz, feldspar, topaz and mica; -0.043mm in the fine mud accounts for 89%, -0.02 mm accounted for 58%. Add sodium carbonate, 500g / t of water glass, 300g / t (by hydroxamic acid mass) of hydroxamic acid complex, 100g / t (by fatty acid mass) of auxiliary collector in this fine mud slurry and No. 2 oil of 20g / t, the slurry mixing time of each medicament is 3 minutes; after the slurry is mixed, enter the flotation tank for roughing operation to obtain roughing tailings and roughing concentrate; A scavenging operation is carried out on the tailings to obtain the scavenging concentrate and the final tailings; the tantalum-niobium concentrate can be obtained by combining ...

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Abstract

The invention discloses a flotation collector solvent for recovering tantalum-niobium from granite pegmatite tantalum-niobium ore and application thereof. The flotation collector solvent comprises a main collector solvent hydroxamic acid compound and an auxiliary collector solvent TB, The mass ratio of the main collector solvent hydroxamic acid compound (in terms of the mass of the hydroxamic acid) to the auxiliary collector solvent TB (in terms of the mass of the fatty acid) is 1: (0.2-2). In the flotation collector solvent, the hydroxamic acid compound formed by the hydroxamic acid and the inorganic metal ion compound is used for replacing the traditional form of activating the inorganic metal ion and then adding the hydroxamic acid collector solvent, and the selectivity of the hydroxamic acid compound is better than that of the traditional form of activating the inorganic metal ion; the auxiliary collecting solvent TB which can generate synergistic action with the hydroxamic acid compound is added auxiliary, so that the flotation collector solvent can greatly improve the collecting capacity of the medicament and improve the flotation recovery rate of tantalum-niobium; Meanwhile,the auxiliary collector solvent TB with lower cost is added, so that the dosage of the hydroxamic acid can be greatly reduced, and the cost of the flotation reagent for recovering the tantalum -niobium from the granitic pegmatite tantalum -niobium ore is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to a flotation collector for recovering tantalum-niobium from granite pegmatite tantalum-niobium ore and its application. Background technique [0002] Tantalum and niobium are important strategic resources. China has gradually become the country with the largest demand for tantalum and niobium resources in the world, and the annual consumption of tantalum and niobium is close to 10,000 tons. At present, the separation technology for tantalum-niobium ore in foreign countries mainly adopts the gravity separation method, and the flotation method is mainly used for the recovery of gravity separation tailings or fine-grained materials; the most valuable type of tantalum-niobium ore in my country is granite pegmatite Type tantalum niobium ore, the main useful minerals are tantalum niobite, tantalum niobium manganese ore, heavy tantalite, fine crystal stone, etc., and the main g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D103/04B03D101/02
CPCB03D1/01B03D2201/02B03D2203/04
Inventor 高玉德邱显扬曹苗孟庆波卜浩何名飞王洪玲蒋碧妮
Owner 淄博特斯博新材料科技有限公司
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