CN106563576A

CN106563576A - Method for flotation separation of chalcopyrite and talc by using locust bean gum

Info

Publication number: CN106563576A
Application number: CN201610955662.3A
Authority: CN
Inventors: 冯博; 罗仙平; 彭金秀; 朱贤文; 郭蔚; 曹志明; 陈志勇
Original assignee: Jiangxi University of Science and Technology
Current assignee: Jiangxi University of Science and Technology
Priority date: 2016-10-27
Filing date: 2016-10-27
Publication date: 2017-04-19

Abstract

The invention provides a method for flotation separation of chalcopyrite and talc by using locust bean gum and belongs to the technical field of mineral separation between copper sulfide minerals and hydrophobic silicate gangue. According to the method, the chalcopyrite and the talc are levigated; the levigated chalcopyrite and talc are put into a flotation tank of a tank-hanging flotation machine; a moderate amount of water is added and stirred, and pulp mixing is conducted; a pH regulator is used for regulating the pH value of an ore pulp; an inhibitor, namely, the locust bean gum, a collecting agent, namely, butyl xanthate and a foaming agent, namely, No.2 oil are added and stirred separately for 1-5 min; and pneumatic flotation is carried out, and a finished ore product and a tailing product are obtained. The efficient inhibitor, namely, the locust bean gum can be selectively adsorbed to a hydrophobic silicate gangue surface, therefore, the selective inhibiting effect on hydrophobic silicate gangue talc is achieved, and the separation between the chalcopyrite and the talc is achieved. Meanwhile, the agentia is free of toxicity, easy to degrade, wide in source and low in cost.

Description

A kind of method of utilization locust bean gum FLOTATION SEPARATION Chalkopyrite and Talcum

Technical field

The present invention relates to copper sulfide mineral and hydrophobic silicon hydrochlorate stone-like pulse Mineral separation technical field, particularly relate to a kind of utilization The method of locust bean gum FLOTATION SEPARATION Chalkopyrite and Talcum.

Background technology

Copper resource is one of important foundation raw material for being most widely used in the national economic development, is widely used in electricity The fields such as gas, light industry, machine-building, building industry, national defense industry, are only second to aluminum in the consumption of China's nonferrous materials. China is copper resource big country, but the consumption figure growth rate of copper is significantly greater than production increase speed in recent years.With communication, electric power Deng the quickening and the popularization of automobile and IT product of infrastructure construction, China will continuation to the demand of copper products from now on Increase substantially.But with a large amount of exploitations of resource, the increasingly lean thin hydridization of copper resource brings shadow to the efficient utilization of copper resource Ring.The sorting of talcose copper-sulphide ores is the technical barrier that ore dressing field is generally acknowledged, domestic and international researcher carried out to such Ore Numerous studies.Need the mineral for reclaiming to be Chalkopyrite in talcose copper-sulphide ores, need the mineral for suppressing to be Talcum.Ore dressing When, as gangue mineral Talcum hardness is relatively low, and there is native floatability, cause the presence of a large amount of easily floating sludges in flotation pulp, Easily float and enter concentrate, affect the raising of concentrate grade.Therefore, the separation of Chalkopyrite and Talcum has two kinds of approach：By pre- First desliming removes microfine Talcum flotation Chalkopyrite again；Addition talc depressants and then again flotation Chalkopyrite.

Using the physical property and flotation characteristic of Talcum by its advance removing, can be with separate section Talcum, but this is often Chalkopyrite is caused to lose.And, only with the method for removing Talcum in advance, copper sulfide concentrate requirement can not be reached, is still needed The suppression work carried out by Talcum.Suppress the Talcum with native floatability using inhibitor, be during Chalkopyrite is separated with Talcum Conventional method, but existing inhibitor also can produce inhibitory action to Chalkopyrite while Talcum is suppressed, and cause pyrite Ore deposit and the Talcum efficiency of separation are relatively low, are unfavorable for the efficient utilization of copper-sulphide ores resource.Therefore, develop to Talcum with compared with high selection Property inhibitor, study which to Chalkopyrite and the inhibitory action of Talcum, realize the high efficiency separation of Talcum and Chalkopyrite, it is difficult to realizing The efficient utilization for processing copper-sulphide ores is significant.

The content of the invention

The technical problem to be solved in the present invention is to provide the side of a kind of utilization locust bean gum FLOTATION SEPARATION Chalkopyrite and Talcum Method, solving copper sulfide mineral Chalkopyrite cannot a technique of preparing difficult problem detached with stone-like pulse Talcum efficient flotation separation.

The method is comprised the steps of：

Will be Chalkopyrite and Talcum mixture material levigate, take it is levigate after raw material be put in the flotation cell of flotation device, add water And stirring obtains uniform ore pulp, the pH of gained ore pulp is adjusted with pH regulators, be subsequently adding inhibitor locust bean gum and stir 3- 5min, continuously add collecting agent butyl xanthate and stir 3-5min, be eventually adding No. 2 oil of foaming agent and stir 1min, air flotation, Product in flotation froth and groove is obtained, flotation froth is Chalkopyrite, product is Talcum in groove.

Wherein, Chalkopyrite purity is more than 95%.Raw material is levigate to granularity less than 74 μm.Raw material is 1 with the mass ratio of water： (10-40)。

PH regulators are hydrochloric acid or sodium hydroxide, and pH values of pulp is adjusted to 4-9.

Inhibitor locust bean gum is configured to the solution that concentration is 1%-3% to be added, and consumption is 30-100mg/L；Collecting agent fourth Xanthate is configured to the solution that concentration is 5%-10% to be added, and consumption is 20-40mg/L；No. 2 oil of foaming agent directly add, and consumption is 10-20mg/L。

The above-mentioned technical proposal of the present invention has the beneficial effect that：

In such scheme, using locust bean gum as inhibitor, locust bean gum can adsorb in hydrophobic silicate stone-like pulse Surface, so as to produce selective inhibitory to hydrophobic silicon hydrochlorate stone-like pulse, can realize copper sulfide mineral Chalkopyrite and hydrophobic silicon The FLOTATION SEPARATION of hydrochlorate stone-like pulse Talcum, while locust bean gum extracts from plant, nontoxic, source is wide, low cost, and economic benefit shows Write.

Specific embodiment

To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with being embodied as Example is described in detail.

A kind of method that the present invention provides utilization locust bean gum FLOTATION SEPARATION Chalkopyrite and Talcum.

Embodiment 1：

Chalkopyrite, Talcum by purity more than 95% is milled down to granularity less than 74um, takes 1g Chalkopyrites and 1g Talcums are put into In the flotation cell of hanging trough flotator, add 40mL water and stirring is sized mixing, ore pulp is adjusted with pH regulators hydrochloric acid or sodium hydroxide PH is 5, adds the collecting agent fourth that inhibitor locust bean gum stirring 5min, 20mg/L concentration that 30mg/L concentration is 3% is 10% No. 2 oil stirring 1min of xanthate stirring 3min, 20mg/L foaming agent, air flotation obtains product in flotation froth and groove, by flotation In foam and groove, product is dried, weighs, is chemically examined.

Beneficiation test result is as shown in the table.

Float test index (wt%)

Embodiment 2：

Chalkopyrite, Talcum are milled down to into granularity less than 74um, 1g Chalkopyrites are taken and 1g Talcums is put into the floating of hanging trough flotator Selecting in groove, adding 40mL water and stirring is sized mixing, the pH for ore pulp being adjusted with pH regulators hydrochloric acid or sodium hydroxide is 9, is added 100mg/L concentration is the collecting agent butyl xanthate stirring that 3% inhibitor locust bean gum stirring 3min, 40mg/L concentration is 5% No. 2 oil stirring 1min of 3min, 20mg/L foaming agent, air flotation obtains product in flotation froth and groove, by flotation froth and groove Interior product is dried, weighs, is chemically examined.Beneficiation test result is as shown in the table.

Float test index (wt%)

Embodiment 3：

Chalkopyrite, Talcum are milled down to into granularity less than 74um, 1g Chalkopyrites are taken and 1g Talcums is put into the floating of hanging trough flotator Selecting in groove, adding 40mL water and stirring is sized mixing, the pH for ore pulp being adjusted with pH regulators hydrochloric acid or sodium hydroxide is 7, adds 50mg/ L concentration be 1% inhibitor locust bean gum stirring 5min, 30mg/L concentration be 5% collecting agent butyl xanthate stirring 3min, No. 2 oil stirring 1min of 20mg/L foaming agents, air flotation obtain product in flotation froth and groove, will produce in flotation froth and groove Product are dried, weigh, are chemically examined.Beneficiation test result is as shown in the table.

Float test index (wt%)

The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these improvements and modifications Should be regarded as protection scope of the present invention.

Claims

1. a kind of method of utilization locust bean gum FLOTATION SEPARATION Chalkopyrite and Talcum, it is characterised in that：Comprise the steps of：

Will be Chalkopyrite and Talcum mixture material levigate, take it is levigate after raw material be put in the flotation cell of flotation device, add water and stir Mix and obtain uniform ore pulp, with pH regulators adjust gained ore pulp pH, be subsequently adding inhibitor locust bean gum and stir 3-5min, Continuously add collecting agent butyl xanthate and stir 3-5min, be eventually adding No. 2 oil of foaming agent and stir 1min, air flotation is obtained Product in flotation froth and groove, flotation froth are Chalkopyrite, and in groove, product is Talcum.

2. the method that utilization locust bean gum according to claim 1 separates Chalkopyrite and Talcum, it is characterised in that：The original Material is levigate to granularity less than 74 μm.

3. the method that utilization locust bean gum according to claim 1 separates Chalkopyrite and Talcum, it is characterised in that：The original Material is 1 with the mass ratio of water：(10-40).

4. the method that utilization locust bean gum according to claim 1 separates Chalkopyrite and Talcum, it is characterised in that：The pH Regulator is hydrochloric acid or sodium hydroxide, and pH values of pulp is adjusted to 4-9.

5. the method that utilization locust bean gum according to claim 1 separates Chalkopyrite and Talcum, it is characterised in that：The suppression Preparation locust bean gum is configured to the solution that concentration is 1%-3% to be added, and consumption is 30-100mg/L；Collecting agent butyl xanthate is configured to Concentration is added for the solution of 5%-10%, and consumption is 20-40mg/L；No. 2 oil of foaming agent directly add, and consumption is 10-20mg/L.