CN107815553A - A kind of method that short route environment-friendly type is completely separated gold from refractory gold - Google Patents
A kind of method that short route environment-friendly type is completely separated gold from refractory gold Download PDFInfo
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- CN107815553A CN107815553A CN201710984324.7A CN201710984324A CN107815553A CN 107815553 A CN107815553 A CN 107815553A CN 201710984324 A CN201710984324 A CN 201710984324A CN 107815553 A CN107815553 A CN 107815553A
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- China
- Prior art keywords
- gold
- refractory
- completely separated
- friendly type
- short route
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
Abstract
The invention discloses a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that including step：The pretreatment of refractory gold：Refractory gold is crushed, ball milling, add a certain amount of addition auxiliary agent, and stirred, then pelletized, be dehydrated, particulate material is made；The vaporization at high temperature of raw material absorbs：Particulate material is homogeneously added into rolling to walk to expect in device, gold-containing compound gasification in particulate material is volatilized to enter into progress spray-absorption liquid in totally-enclosed, fully-automatic sprinkling gas recovery device and absorbed by uniformly heating, is precipitated；The collection of gold-containing compound：The precipitation obtained after spray is stood, is filtered, cleaned and collected.The present invention is relative to existing cyaniding, this method has the characteristics that preparation flow is short, organic efficiency is high, disposal ability is big, environment-friendly, energy-saving and emission-reduction, cost are cheap, the gold in extensive separation and Extraction refractory gold can be industrialized, realizes the high efficiency extraction of gold resource.
Description
Technical field
The invention belongs to the processing of solid dangerous waste and technical field of resource comprehensive utilization, more particularly to a kind of short route environment-friendly type
The method of gold is completely separated from refractory gold.
Background technology
Refractory gold refers to use conventional cyaniding to be difficult to the ore for reclaiming most of gold (rate of recovery is not less than 80%)
Resource, and the reserves of this ore have exceeded the 50% of whole gold mines in nature.The reason for gold ore hardly possible leaching, is varied,
There is the reason for physics, chemistry and mineralogy aspect, specifically include physical parcel, the side effect of oxygen consumption consumption cyanogen mineral, goldc grains table
Face is passivated, " rob gold " effect of carbonaceous and in reasons such as insoluble gold compound existence forms.
China is important golden production state of the world, but backward in technique, money in terms of the processing of refractory gold also be present
Source loss and waste is serious, can not abundant rate of recovery use, the problems such as environmentally friendly efficiency is low.Especially in the synthesis of refractory gold resource
The problem of resource-environment-benefit is difficult to coordinated development on Utilizing question also be present, it is huge in global gold field
The associated production enterprise of competitive pressure China shoulders heavy responsibilities.For above-mentioned problem, the invention provides one kind to prepare stream
Journey is short, organic efficiency is high, disposal ability is big, environment-friendly, energy-saving and emission-reduction, cheap cost the features such as from refractory gold thoroughly
The method for separating gold.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of short route environment-friendly type and gold is completely separated from refractory gold
Method, this method can industrialize the separation and Extraction gold from refractory gold on a large scale, realize efficiently separating for gold resource
Extraction.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that specifically include as follows
Step：
The pretreatment of refractory gold：Refractory gold is crushed, ball milling, add a certain amount of addition auxiliary agent, and stir
Uniformly, then pelletize, be dehydrated, particulate material is made；
The vaporization at high temperature of raw material absorbs：Particulate material is homogeneously added into rolling to walk to expect in device, uniformly heated particle
In raw material gold-containing compound gasification be volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device carry out spray-absorption liquid enter
Row absorbs, and is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, is filtered, cleaned and collected.
Further, the refractory gold is any in unvulcanised packed in gangue gold, the golden carbonaceous gold ore of sulfide parcel
It is a kind of.
Further, the refractory gold is crushed, the powder particle granularity that is obtained after ball milling is 20-80 mesh.
Further, the addition auxiliary agent is chloride, and the chloride is sodium chloride, calcium chloride, potassium chloride, chlorination
Any one or a few mixing in ammonium, magnesium chloride.
Further, the addition of the addition auxiliary agent is mass fraction 5.0-20.0%.
Further, it is 800-1200 DEG C to walk the heating-up temperature expected in device in the rolling, material stopping in a device
It is 1-3h to stay the time, and the gaseous volatilization time is 30-120min.
Further, the absorbing liquid is for the aqueous solution of sodium chloride or the aqueous solution of calcium chloride, the absorbing liquid concentration
Mass fraction 1.0%-25.0%.
Further, the collection step of the gold-containing compound is specifically, the precipitation obtained after spray is stood, mistake
Cleaned after filter with deionized water or distilled water, obtain the high grade product that gold-containing compound mass fraction is 5.0-50.0%.
The beneficial effects of the invention are as follows：
The invention provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, this method includes stupid
Gu the pretreatment of gold mine, vaporization at high temperature absorb and three step compositions of the collection of gold-containing compound product.Relative to existing cyanogen
Change method, this method have preparation flow is short, organic efficiency is high, disposal ability is big, environment-friendly, energy-saving and emission-reduction, cost are cheap etc.
Feature, the gold in extensive separation and Extraction refractory gold can be industrialized, realize the high efficiency extraction of gold resource.
Embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, below in the embodiment of the present invention
Technical scheme is clearly and completely described, it is clear that and the embodiments described below are only part of the embodiment of the present invention,
And not all embodiments.Based on the embodiment in the present invention, every other embodiment that those skilled in the art is obtained, all
Belong to the scope of protection of the invention.
Embodiment 1
The present embodiment provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that
Specifically comprise the following steps：
The pretreatment of refractory gold：By refractory gold (carbonaceous gold ores of 20 g tons) is crushed, ball milling obtains powder
Grain granularity is 20 mesh, and addition mass fraction is 5.0% sodium chloride, and stirs, and then pelletizes, is dehydrated, particulate matter is made
Material；
The vaporization at high temperature of raw material absorbs：The particulate material prepared is homogeneously added into rolling to walk to expect in device, its is equal
Even to be heated to 800 degrees Celsius, residence time of the granule materials in rolling walks to expect device is 1 hour, and the gaseous volatilization time is 30
Minute, gold-containing compound gasification in particulate material is volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device and sprayed
Concentration is absorbed for the sodium chloride of mass fraction 1.0% as absorbing liquid, is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, filtered, is cleaned using deionized water
And collection, it is 18.9% high grade product to obtain gold-containing compound mass fraction, and contains after filtering in residue and be less than containing gold
0.5%.
Embodiment 2
The present embodiment provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that
Specifically comprise the following steps：
The pretreatment of refractory gold：By refractory gold (sulfide of 56 g tons wraps up gold) is crushed, ball milling obtains powder
Last grain graininess is 60 mesh, and addition mass fraction is 10.0% calcium chloride, and stirs, and then pelletizes, is dehydrated, obtained
Grain material；
The vaporization at high temperature of raw material absorbs：The particulate material prepared is homogeneously added into rolling to walk to expect in device, its is equal
Even to be heated to 1000 degrees Celsius, residence time of the granule materials in rolling walks to expect device is 2 hours, and the gaseous volatilization time is 60
Minute, gold-containing compound gasification in particulate material is volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device and sprayed
Concentration is absorbed for the calcium chloride solution of mass fraction 10.0% as absorbing liquid, is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, filtered, is cleaned using deionized water
And collection, it is 45.6% high grade product to obtain gold-containing compound mass fraction, and is less than in the residue after filtering containing gold
0.8%.
Embodiment 3
The present embodiment provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that
Specifically comprise the following steps：
The pretreatment of refractory gold：By refractory gold (the unvulcanised packed in gangue gold of 33 g tons) is crushed, ball milling obtains
It is 80 mesh to powder particle granularity, addition mass fraction is 20.0% ammonium chloride, and stirs, and then pelletizes, is dehydrated, system
Obtain granule materials；
The vaporization at high temperature of raw material absorbs：The particulate material prepared is homogeneously added into rolling to walk to expect in device, its is equal
Even to be heated to 1200 degrees Celsius, residence time of the granule materials in rolling walks to expect device is 3 hours, and the gaseous volatilization time is
120 minutes, gold-containing compound gasification in particulate material is volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device and sprayed
Leaching concentration is absorbed for the calcium chloride solution of mass fraction 25.0% as absorbing liquid, is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, filtered, is cleaned using deionized water
And collection, it is 48.9% high grade product to obtain gold-containing compound mass fraction, and is less than in the residue after filtering containing gold
0.6%.
Embodiment 4
The present embodiment provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that
Specifically comprise the following steps：
The pretreatment of refractory gold：By refractory gold (carbonaceous gold ores of 20 g tons) is crushed, ball milling obtains powder
Grain granularity is 40 mesh, and addition mass fraction is 12.0% potassium chloride, and stirs, and then pelletizes, is dehydrated, particulate matter is made
Material；
The vaporization at high temperature of raw material absorbs：The particulate material prepared is homogeneously added into rolling to walk to expect in device, its is equal
Even to be heated to 900 degrees Celsius, residence time of the granule materials in rolling walks to expect device is 2 hours, and the gaseous volatilization time is 90
Minute, gold-containing compound gasification in particulate material is volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device and sprayed
Concentration is absorbed for the sodium chloride solution of mass fraction 5.0% as absorbing liquid, is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, filtered, is cleaned using deionized water
And collection, it is 26.8% high grade product to obtain gold-containing compound mass fraction, and is less than in the residue after filtering containing gold
0.5%.
Embodiment 5
The present embodiment provides a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that
Specifically comprise the following steps：
The pretreatment of refractory gold：By refractory gold (sulfide of 56 g tons wraps up gold) is crushed, ball milling obtains powder
Last grain graininess is 20 mesh, and addition mass fraction is 10.0% potassium chloride, and stirs, and then pelletizes, is dehydrated, obtained
Grain material；
The vaporization at high temperature of raw material absorbs：The particulate material prepared is homogeneously added into rolling to walk to expect in device, its is equal
Even to be heated to 800 degrees Celsius, residence time of the granule materials in rolling walks to expect device is 1 hour, and the gaseous volatilization time is 30
Minute, gold-containing compound gasification in particulate material is volatilized to enter into totally-enclosed, fully-automatic sprinkling gas recovery device and sprayed
Concentration is absorbed for the calcium chloride solution of mass fraction 20.0% as absorbing liquid, is precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, filtered, is cleaned using deionized water
And collection, it is 9.5% high grade product to obtain gold-containing compound mass fraction, and is less than in the residue after filtering containing gold
1.0%.
Although the above-mentioned embodiment to the present invention is described, not to the limit of the scope of the present invention
System, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art need not pay
Go out various modifications that creative work can make or deformation is still within the scope of the present invention.
Claims (8)
1. a kind of method that short route environment-friendly type is completely separated gold from refractory gold, it is characterised in that specifically include following step
Suddenly：
The pretreatment of refractory gold：Refractory gold is crushed, ball milling, adds a certain amount of addition auxiliary agent, and stirred,
Then pelletize, be dehydrated, granule materials are made；
The vaporization at high temperature of raw material absorbs：Add rolling to walk to expect in device by uniform granular material, uniformly heat particulate material
Middle gold-containing compound gasification is volatilized to enter into progress spray-absorption liquid in totally-enclosed, fully-automatic sprinkling gas recovery device and inhaled
Receive, precipitated；
The collection of gold-containing compound：The precipitation obtained after spray is stood, is filtered, cleaned and collected.
2. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The refractory gold is any one in unvulcanised packed in gangue gold, the golden carbonaceous gold ore of sulfide parcel.
3. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The powder particle granularity that the refractory gold crushed, is obtained after ball milling is 20-80 mesh.
4. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The addition auxiliary agent is chloride, and the chloride is any one in sodium chloride, calcium chloride, potassium chloride, ammonium chloride, magnesium chloride
Kind or several mixing.
5. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The addition of the addition auxiliary agent is mass fraction 5.0-20.0%.
6. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
It is 800-1200 DEG C that the heating-up temperature expected in device is walked in the rolling, and the granule materials are in the stop during rolling walks to expect device
Between be 1-3h, the gaseous volatilization time is 30-120min.
7. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The absorbing liquid is the aqueous solution of sodium chloride or the aqueous solution of calcium chloride, and the absorbing liquid concentration is mass fraction 1.0%-
25.0%.
8. the method that short route environment-friendly type according to claim 1 is completely separated gold from refractory gold, it is characterised in that
The collection step of the gold-containing compound specifically, after the precipitation obtained after spray is stood, filtered with deionized water or
Distilled water cleans, and obtains the high grade product that gold-containing compound mass fraction is 5.0-50.0%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710984324.7A CN107815553A (en) | 2017-10-20 | 2017-10-20 | A kind of method that short route environment-friendly type is completely separated gold from refractory gold |
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| CN201710984324.7A CN107815553A (en) | 2017-10-20 | 2017-10-20 | A kind of method that short route environment-friendly type is completely separated gold from refractory gold |
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