CN1800421A - Recovering process of valent metal from crude bismuth - Google Patents
Recovering process of valent metal from crude bismuth Download PDFInfo
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- CN1800421A CN1800421A CNA2005101256302A CN200510125630A CN1800421A CN 1800421 A CN1800421 A CN 1800421A CN A2005101256302 A CNA2005101256302 A CN A2005101256302A CN 200510125630 A CN200510125630 A CN 200510125630A CN 1800421 A CN1800421 A CN 1800421A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a crude bismuth metal recovery technology which adopts wet process and pyrogenic process craft to recover the mental. It first dose water quenching, ball milling, extracting, scouring and filtering to the crude bismuth alloy to obtain the antimony lead skim and leaching solution; the antimony lead skim returns to the pyrogenic process system and then to the lead smelt system; it uses spongy copper to displace the Au and Ag of the leaching solution to produce the gold silver earth which returns to the noble metal smelting system; the liquid after displacing the gold silver earth dose hydrolytic precipitation bismuth and uses limestone and water to inactive it to pH=3-3.5, it filters the solution to obtain the bismuth oxide chloride and obtains the crude bismuth by smelting and then obtains the purified bismuth; it uses iron slag to displace the Cu to produce the spongy copper; adding limestone in the liquid after depositing Cu to inactive it and discharges it.
Description
Technical field
The invention belongs to technical field of non-ferrous metallurgy, relate in particular to that valuable metal reclaims technology in a kind of thick bismuth that adopts the comprehensive recovery that wet method, pyrogenic process technology linked together carries out each valuable metal in the thick bismuth alloy.
Background technology
Meeting output wet method slag (antimony slag, bismuth slag) in the process of handling lead anode slurry recovery production gold and silver, pyrogenic process slag (primary slag, secondary slag), by-product materials such as flue dust.This material mainly contains valuable metals such as antimony, bismuth, copper, lead, gold and silver.Material is stacked and is polluted the environment, and can not reclaim valuable metal, and economic worth can not embody, so the recovery operation of valuable metal Sb, Bi etc. is extremely important in each slag class.All kinds of slags utilize the pyrogenic process system handles, and through retailoring output alloy, alloy is again through the blowing oxidation, antimony voloxidation output antimony oxygen powder or stibium trioxide, and enrichments such as remaining valuable metal bismuth, lead, gold and silver form many metal alloys---thick bismuth.Thick bismuth composition is as follows:
Sb Bi Cu Pb Au Ag
Because main bismuth metal grade is not high, it is difficult to sell in the thick bismuth of 15--30% 25--50% 15--30% 15--30% 15--80g/t 15-30Kg/t, and has only Bi, Au, Ag valuation when selling, on the low side, uneconomical economically.And when adopting traditional pyrogenic process bismuth refinery practice to handle because of the foreign matter content height, direct yield is too low, the processing charges height.Therefore how valuable metal in the thick bismuth is separated, reclaims the formation product, so that improve whole comprehensive recycling process flow process, vitalize assets, increasing economic efficiency becomes more and more important.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and provide that valuable metal reclaims technology in a kind of thick bismuth that adopts the comprehensive recovery that wet method, pyrogenic process technology linked together carries out each valuable metal in the thick bismuth alloy.
The objective of the invention is such:
The first step: at first thick bismuth alloy is carried out shrend, ball milling,
Second step: leach, wash and filter, obtain antimony lead slag and leach liquor,
The 3rd step: the antimony lead slag that produces changes plumbous smelting system after returning pyrogenic process system recoveries antimony,
The 4th step: institute's leach liquor that produces is replaced wherein Au, Ag output gold and silver mud with copper sponge, and output gold and silver mud returns the precious metal smelting system,
The 5th step: to the heavy bismuth that is hydrolyzed of the liquid behind the displacement gold and silver mud, be neutralized to PH=3-3.5, obtain chlorine oxygen bismuth after the filtration, become thick bismuth further to be refined into smart bismuth again through retailoring with lime and water,
The 6th step: to the filtered liquid iron powder replacement Cu in the 5th step, heavy Cu, the output copper sponge,
The 7th step: the liquid behind the heavy Cu adds lime and neutralizes, through 2-3 level post precipitation qualified discharge.
In above-mentioned steps, thick bismuth alloy is through shrend, and granularity need reach 60 orders behind the ball milling.Leach, washing, filter and obtain the antimony lead slag, guarantee antimony lead content＞45%, chemical equation was when thick bismuth leached:
The wet production workshop of thick bismuth alloy of the present invention combines with the pyrogenic process system and can carry out the comprehensive recovery of valuable metal in the thick bismuth alloy.Stable production process, various valuable metals all obtain Separation and Recovery, and every technico-economical comparison meets the requirements.Have adaptability to raw material strong, metal recovery rate height, advantage such as the labor operation condition is good.Not only perfect whole comprehensive recycling process flow process, comprehensive Separation and Recovery each valuable metal in the smelting by-product product, it is no longer piled up, vitalized fund, turn bane into boon.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Valuable metal reclaims technology in a kind of thick bismuth, and concrete implementation step is as follows:
The first step: at first thick bismuth alloy is carried out shrend, ball milling, thick bismuth alloy is through shrend, and granularity reaches 60 orders behind the ball milling.
Second step: leach, wash and filter, obtain antimony lead slag and leach liquor, leach, washing, filter and obtain the antimony lead slag, guarantee antimony lead content＞45%, chemical equation was when thick bismuth leached:
, Me represents Cu, Bi, Sb, Pb, and solid-to-liquid ratio is 5-7 during leaching: 1, temperature 60-90 ℃, time 3-4 hour, during washing, pH value was: 0.5-1.0,90 ℃ of temperature.
The 3rd step: the antimony lead slag that produces changes plumbous smelting system after returning pyrogenic process system recoveries antimony,
The 4th step: institute's leach liquor that produces is replaced wherein Au, Ag output gold and silver mud with copper sponge, and output gold and silver mud returns the precious metal smelting system, and when leach liquor was replaced wherein Au, Ag output gold and silver mud with copper sponge, temperature of reaction was 60-80 ℃, time 4-5 hour.
The 5th step: to the heavy bismuth that is hydrolyzed of the liquid behind the displacement gold and silver mud, be neutralized to PH=3-3.5 with lime and water, obtain chlorine oxygen bismuth after the filtration, become thick bismuth further to be refined into smart bismuth again through retailoring, liquid is neutralized to PH=3-3.5 with lime and water behind the displacement gold and silver mud, and output chlorine oxygen bismuth guarantees content＞60% of Bi.To the liquid behind the displacement gold and silver mud with in lime and the water and the time, with in the lime and the time lime should slowly add, terminal point PH=3-3.5, keep permanent PH after one hour, add the long-pending water of monoploid and be hydrolyzed constant temperature 60-70 ℃, stir press filtration after 0.5 hour, output chlorine oxygen bismuth, chlorine oxygen bismuth add coke powder, soda ash is sent into reverberatory furnace and carried out retailoring, further are refined into smart bismuth after retailoring becomes thick bismuth again.
The 6th step: the filtered liquid in the 5th step is with the heavy Cu of iron powder replacement, the output copper sponge, and temperature is controlled at temperature 80-90 ℃, and an output copper sponge part is returned displacement gold and silver mud, and another part is sold or is changeed the copper smelting system.
The 7th step: the liquid behind the heavy Cu adds lime and neutralizes, through 2-3 level post precipitation qualified discharge.As in the material goes into slag through Sb, most of stage of Bi hydrolysis and removes, and the lime neutralization that in the end adds of trace is removed.
Claims (7)
1, valuable metal reclaims technology in a kind of thick bismuth, it is characterized in that:
The first step: at first thick bismuth alloy is carried out shrend, ball milling,
Second step: leach, wash and filter, obtain antimony lead slag and leach liquor,
The 3rd step: the antimony lead slag that produces changes plumbous smelting system after returning pyrogenic process system recoveries antimony,
The 4th step: institute's leach liquor that produces is replaced wherein Au, Ag output gold and silver mud with copper sponge, and output gold and silver mud returns the precious metal smelting system,
The 5th step: to the heavy bismuth that is hydrolyzed of the liquid behind the displacement gold and silver mud, be neutralized to PH=3-3.5, obtain chlorine oxygen bismuth after the filtration, become thick bismuth further to be refined into smart bismuth again through retailoring with lime and water,
The 6th step: the filtered liquid in the 5th step is with the heavy Cu of iron powder replacement, the output copper sponge,
The 7th step: the liquid behind the heavy Cu adds lime and neutralizes, through 2-3 level post precipitation qualified discharge.
2, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: thick bismuth alloy is through shrend, and granularity reaches 60 orders behind the ball milling.
3, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: leach, washing, filter and obtain the antimony lead slag, guarantee antimony lead content＞45%, chemical equation was when thick bismuth leached:
, Me represents Cu, Bi, Sb, Pb, and solid-to-liquid ratio is 5-7 during leaching: 1, temperature 60-90 ℃, time 3-4 hour, during washing, pH value was: 0.5-1.0,90 ℃ of temperature.
4, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: in the 4th step, during with wherein Au of copper sponge displacement, Ag output gold and silver mud, temperature of reaction is 60-80 ℃, time 4-5 hour to leach liquor.
5, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: liquid is neutralized to PH=3-3.5 with lime and water behind the displacement gold and silver mud, and output chlorine oxygen bismuth guarantees content＞60% of Bi.
6, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: to the liquid behind the displacement gold and silver mud with in lime and the water and the time, with in the lime and the time lime should slowly add, terminal point PH=3-3.5, keep permanent PH after one hour, adding the long-pending water of monoploid is hydrolyzed, constant temperature 60-70 ℃, stir press filtration after 0.5 hour, output chlorine oxygen bismuth, chlorine oxygen bismuth adds coke powder, soda ash is sent into reverberatory furnace and carried out retailoring, further is refined into smart bismuth after retailoring becomes thick bismuth again.
7, valuable metal reclaims technology in a kind of thick bismuth according to claim 1, it is characterized in that: to the filtered liquid in the 5th step with the heavy Cu of iron powder replacement, temperature is controlled at temperature 80-90 ℃, and an output copper sponge part is returned displacement gold and silver mud, and another part is sold or commentaries on classics copper smelting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101256302A CN100475985C (en) | 2005-12-02 | 2005-12-02 | Recovering process of valuable metal from crude bismuth |
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| CNB2005101256302A CN100475985C (en) | 2005-12-02 | 2005-12-02 | Recovering process of valuable metal from crude bismuth |
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| CN1800421A true CN1800421A (en) | 2006-07-12 |
| CN100475985C CN100475985C (en) | 2009-04-08 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462453C (en) * | 2007-03-28 | 2009-02-18 | 湖南金旺实业有限公司 | Comprehensive extraction of valent metal from bismuth-containing polymetallic material |
| CN101343691B (en) * | 2008-09-01 | 2010-06-02 | 中南大学 | Pollution-free separation method for plumbum and silver |
| US7922788B2 (en) | 2007-09-18 | 2011-04-12 | Barrick Gold Corporation | Process for recovering gold and silver from refractory ores |
| CN102087218A (en) * | 2010-12-01 | 2011-06-08 | 金川集团有限公司 | Method for identifying extent of replacement purification reaction of platinum group metals |
| CN102417988A (en) * | 2011-11-02 | 2012-04-18 | 郴州正和科技有限公司 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
| CN102534255A (en) * | 2011-12-30 | 2012-07-04 | 中南大学 | Wet-fire combined smelting process for antimony or bismuth |
| US8262770B2 (en) | 2007-09-18 | 2012-09-11 | Barrick Gold Corporation | Process for controlling acid in sulfide pressure oxidation processes |
| US8262768B2 (en) | 2007-09-17 | 2012-09-11 | Barrick Gold Corporation | Method to improve recovery of gold from double refractory gold ores |
| CN105112688A (en) * | 2015-09-10 | 2015-12-02 | 昆明理工大学 | Fire-refining method of crude bismuth |
-
2005
- 2005-12-02 CN CNB2005101256302A patent/CN100475985C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462453C (en) * | 2007-03-28 | 2009-02-18 | 湖南金旺实业有限公司 | Comprehensive extraction of valent metal from bismuth-containing polymetallic material |
| US8262768B2 (en) | 2007-09-17 | 2012-09-11 | Barrick Gold Corporation | Method to improve recovery of gold from double refractory gold ores |
| US7922788B2 (en) | 2007-09-18 | 2011-04-12 | Barrick Gold Corporation | Process for recovering gold and silver from refractory ores |
| US8262770B2 (en) | 2007-09-18 | 2012-09-11 | Barrick Gold Corporation | Process for controlling acid in sulfide pressure oxidation processes |
| CN101343691B (en) * | 2008-09-01 | 2010-06-02 | 中南大学 | Pollution-free separation method for plumbum and silver |
| CN102087218A (en) * | 2010-12-01 | 2011-06-08 | 金川集团有限公司 | Method for identifying extent of replacement purification reaction of platinum group metals |
| CN102087218B (en) * | 2010-12-01 | 2012-07-04 | 金川集团有限公司 | Method for identifying extent of replacement purification reaction of platinum group metals |
| CN102417988A (en) * | 2011-11-02 | 2012-04-18 | 郴州正和科技有限公司 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
| CN102417988B (en) * | 2011-11-02 | 2013-06-19 | 郴州正和科技有限公司 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
| CN102534255A (en) * | 2011-12-30 | 2012-07-04 | 中南大学 | Wet-fire combined smelting process for antimony or bismuth |
| CN102534255B (en) * | 2011-12-30 | 2014-01-29 | 中南大学 | Wet-fire combined smelting process for antimony or bismuth |
| CN105112688A (en) * | 2015-09-10 | 2015-12-02 | 昆明理工大学 | Fire-refining method of crude bismuth |
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|---|---|
| CN100475985C (en) | 2009-04-08 |
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