CN87104574A - New technique of fire refining method for bullion lead - Google Patents
New technique of fire refining method for bullion lead Download PDFInfo
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- CN87104574A CN87104574A CN87104574.5A CN87104574A CN87104574A CN 87104574 A CN87104574 A CN 87104574A CN 87104574 A CN87104574 A CN 87104574A CN 87104574 A CN87104574 A CN 87104574A
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- silver
- bismuth
- lead
- refining
- lead bullion
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Abstract
New technique of fire refining method for bullion lead is to be used for a kind of novel process that the refining of lead bullion is produced lead bullion, cable alloy, store battery usefulness alloy.This technology has been got rid of in the external general now pyrorefining flow process zinc desilverization and has been added traditional method that calcium magnesium takes off bismuth.Lead bullion adopts the continuous desilverization of plumbous crystallizer and bismuth behind copper removal and arsenic removal, antimony, tin, obtain lead bullion and a rich silver products.This rich silver products is handled through vacuum oven, obtained argentiferous greater than 90% thick silver, directly electrolysis gets smart silver, and leaded part in addition can according to circumstances be produced lead bullion or other alloys.From having simplified thick refining flow process, reduce consumption, reduced investment, are a kind of simple but effective method to the extraction of gold and silver.
Description
The refining of lead bullion generally adopts pyrorefining and two kinds of methods of electrorefining both at home and abroad at present, and 85% by pyrorefining production in world's lead bullion output, and 15% by electrorefining production.Following advantage has been compared in pyrorefining with electrorefining: 1. investment is little, and the pyrorefining investment only is equivalent to 60～70% of electrorefining investment; 2. can handle the lead bullion of composition complexity; 3. with short production cycle; 4. energy consumption is low; 5. the control of product is flexible.
The flow process that adopts pyrorefining generally is earlier through liquate with add the sulphur copper removal, again through basic refining dearsenification, antimony, tin, and last zinc desilverization and add calcium magnesium and take off bismuth.After this flow process adopted zinc desilverization, the lead after the desilverization must need further to handle zinc, lead, silver, the gold that reclaims wherein through vacuum dezincification, the silver-zinc crust that obtains.This process is a kind of comparatively complicated process.Must add when adding calcium magnesium and take off bismuth earlier through the lead-calcium alloy of preparation, preparation China of this alloy does not still have practice, and the consumption of magnesium is then comparatively expensive.And China is to zinc desilverization and add the processing that calcium magnesium takes off bismuth and silver-zinc crust and all do not have practice, although therefore pyrorefining has many advantages and popularized abroad, can not get utilization in China always.
At the problems referred to above that exist in the external existing pyrorefining flow process and the reality of China, the purpose that proposes this new technology is to get rid of and adds in the existing procedure that calcium magnesium takes off bismuth and the zinc desilverization operation is simplified flow process, reduced cost.
Technical process of the present invention is shown in Figure of description 1, and main contents are:
The lead bullion composition: silver all can within common lead bullion content range less than 0.5% bismuth, 0.01～0.2% other impurity.
Processing condition:
1. decopper(ing) adopts the traditional technology of liquate-Jia sulphur;
2. arsenic removal, antimony, tin impurity are to add sodium hydroxide to feed pressurized air and oxygen 600～630 ℃ of temperature in a kier.Pressurized air and oxygen mixed after airduct is blown into melt by 4: 1, and pressure is 3～4 kg/cm, behind the arsenic in the lead bullion, antimony, the tin oxidation of impurities and sodium hydroxide generate corresponding salt and remove.Adopt this law can shorten the basic refining time and save the operation of nitre as reagent.
3. through the plumbous liquid of decopper(ing) and arsenic, antimony, tin, major impurity also has silver and bismuth, argentiferous is lower than 1%, bismuth-containing is generally 0.02～0.2%, controlled temperature advances crystallizer continuously equably about 350 ℃, plumbous liquid is lowered the temperature in crystallizer and is cooled to about 304 ℃, for silver and the liquid that enriched of bismuth are discharged through leakage fluid dram, and the pure crystallization lead of argentiferous and bismuth is not discharged by spiral.Silver can be reduced to 3 gram/tons in the lead bullion, and the bismuth-containing amount is looked the raw material bismuth-containing and can be reached No. 1 or No. 2 lead bullions.
By the crystallizer leakage fluid dram get rid of be rich in silver (general argentiferous φ about 1%) and the liquid of bismuth enters the internal heat type vacuum oven, when distillation temperature is controlled at 1100 ℃ of left and right sides, lead wherein and bismuth are evaporated greater than silver because of vapour pressure, after condenser condenses, discharge, and silver is enriched to argentiferous greater than 90% back discharge, casts anode and send silver-colored electrolysis.
Embodiment:
According to the designed principle process of the output of certain plumbous zinc factory and raw material composition and product dispensing shown in Figure of description 2, this factory puts into production.
The present invention compares with existing refining flow process and has the following advantages:
1. do not need zinc desilverization and add calcium magnesium to take off bismuth, do not consume any reagent, be conducive to reduce cost, reduced simultaneously a large amount of intermediate products;
2. saved because of the desilver that zinc desilverization causes, plumbous vacuum dezincification;
3. the whole refining of having saved the preparation of lead-Calcium alloy and having taken off the plumbous liquid that bismuth causes because adding calcium, magnesium dezincifies, and magnesium, calcium have also saved the processing of bismuth slag.
4. can directly obtain thick silver, no matter saved is to process electrolysis anode sludge to reclaim silver, or silver-zinc crust processes the Complicated Flow that reclaims silver and bring, thereby has reduced the product processing cost, has improved the silver-colored rate of recovery, has reduced environmental pollution, has reduced capital expenditure.
Claims (1)
1, a kind of fire refining of crude lead technology, its be with lead bullion through liquate and add the sulphur copper removal, again through basic refining dearsenification, antimony, tin, the desilverization and take off bismuth then, rich lead extracts thick silver again, it is characterized in that:
A. described basic refining is to add sodium hydroxide in a kier, and feeding pressurized air and oxygen compression air mixed by 4: 1 after airduct is blown into melt with oxygen under 600 to 630 ℃ of temperature, and pressure is 3～4 kilograms per centimeter
2, generate corresponding salt with sodium hydroxide behind the arsenic in the lead bullion, antimony, the tin oxidation of impurities and remove,
B. the described desilverization and to take off the bismuth process be to carry out in a crystallizer, plumbous liquid argentiferous through removing copper, arsenic, antimony, tin is lower than 1%, bismuth-containing is generally 0.02～0.2%, controlled temperature is continuous about 350 ℃, add in the crystallizer uniformly, cooling was cooled to 304 ℃ after plumbous liquid entered crystallizer, and the liquid that is rich in silver and bismuth is discharged through leakage fluid dram, and lead bullion is got rid of from the spiral mouth.
C. the refining process of described silver is to carry out in a vacuum oven, the liquid that is rich in silver and bismuth of being discharged by xln enters an internal combustion type vacuum oven, temperature is controlled at about 1100 ℃, and is plumbous, bismuth is evaporated out after condensation and getting rid of, and silver-colored enrichment obtains argentiferous greater than 90% thick silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87104574.5A CN1003310B (en) | 1987-06-27 | 1987-06-27 | New technique of fire refining method for bullion lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87104574.5A CN1003310B (en) | 1987-06-27 | 1987-06-27 | New technique of fire refining method for bullion lead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87104574A true CN87104574A (en) | 1988-03-30 |
| CN1003310B CN1003310B (en) | 1989-02-15 |
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ID=4814931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87104574.5A Expired CN1003310B (en) | 1987-06-27 | 1987-06-27 | New technique of fire refining method for bullion lead |
Country Status (1)
| Country | Link |
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| CN (1) | CN1003310B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818261B (en) * | 2009-12-23 | 2012-04-25 | 株洲冶炼集团股份有限公司 | Method for removing tin from lead bullion by adopting ferrous powder |
| CN102534661A (en) * | 2012-01-19 | 2012-07-04 | 北京化工大学 | Method for refining crude lead |
| CN102796886A (en) * | 2011-09-30 | 2012-11-28 | 江西稀有金属钨业控股集团有限公司 | Method and system for refining high-tellurium coarse bismuth |
| CN103540762A (en) * | 2012-07-11 | 2014-01-29 | 陕西锌业有限公司 | Lead melting copper removal refining process for industrial frequency coreless-type electric induction furnace |
| CN103849780A (en) * | 2013-08-13 | 2014-06-11 | 湖南水口山有色金属集团有限公司 | Refining method of tin-containing lead bullion and lead refining production method |
| CN106916961A (en) * | 2017-04-23 | 2017-07-04 | 江西省震宇再生资源有限公司 | Vacuum drying oven produces thick silver process |
| CN108149031A (en) * | 2018-01-11 | 2018-06-12 | 中南大学 | A kind of new method of crude pb-sb alloy separation antimony |
| CN108842069A (en) * | 2018-06-15 | 2018-11-20 | 昆明理工大学 | A kind of method of lead-antimony alloy pyro-refining |
| CN112391529A (en) * | 2020-10-15 | 2021-02-23 | 襄阳市立强机械有限公司 | Regenerated lead and regenerated antimonic acid alkali balance comprehensive smelting process |
| CN112410577A (en) * | 2020-10-12 | 2021-02-26 | 浙江天能电源材料有限公司 | Method for removing bismuth and refining refined lead by pyrogenic process |
| CN116411175A (en) * | 2023-06-12 | 2023-07-11 | 昆明理工大学 | Fire refining method for complex lead bullion |
| CN116426766A (en) * | 2023-06-12 | 2023-07-14 | 昆明理工大学 | Method for extracting silver from complex lead bullion |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705372B (en) * | 2009-11-25 | 2011-09-21 | 郴州市金贵银业股份有限公司 | Process for extracting tin from wet lead with high tin content |
-
1987
- 1987-06-27 CN CN87104574.5A patent/CN1003310B/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818261B (en) * | 2009-12-23 | 2012-04-25 | 株洲冶炼集团股份有限公司 | Method for removing tin from lead bullion by adopting ferrous powder |
| CN102796886A (en) * | 2011-09-30 | 2012-11-28 | 江西稀有金属钨业控股集团有限公司 | Method and system for refining high-tellurium coarse bismuth |
| CN102534661A (en) * | 2012-01-19 | 2012-07-04 | 北京化工大学 | Method for refining crude lead |
| CN102534661B (en) * | 2012-01-19 | 2014-08-20 | 北京化工大学 | Method for refining crude lead |
| CN103540762A (en) * | 2012-07-11 | 2014-01-29 | 陕西锌业有限公司 | Lead melting copper removal refining process for industrial frequency coreless-type electric induction furnace |
| CN103540762B (en) * | 2012-07-11 | 2015-06-17 | 陕西锌业有限公司 | Lead melting copper removal refining process for industrial frequency coreless-type electric induction furnace |
| CN103849780A (en) * | 2013-08-13 | 2014-06-11 | 湖南水口山有色金属集团有限公司 | Refining method of tin-containing lead bullion and lead refining production method |
| CN106916961A (en) * | 2017-04-23 | 2017-07-04 | 江西省震宇再生资源有限公司 | Vacuum drying oven produces thick silver process |
| CN108149031A (en) * | 2018-01-11 | 2018-06-12 | 中南大学 | A kind of new method of crude pb-sb alloy separation antimony |
| CN108842069A (en) * | 2018-06-15 | 2018-11-20 | 昆明理工大学 | A kind of method of lead-antimony alloy pyro-refining |
| CN112410577A (en) * | 2020-10-12 | 2021-02-26 | 浙江天能电源材料有限公司 | Method for removing bismuth and refining refined lead by pyrogenic process |
| CN112391529A (en) * | 2020-10-15 | 2021-02-23 | 襄阳市立强机械有限公司 | Regenerated lead and regenerated antimonic acid alkali balance comprehensive smelting process |
| CN116411175A (en) * | 2023-06-12 | 2023-07-11 | 昆明理工大学 | Fire refining method for complex lead bullion |
| CN116426766A (en) * | 2023-06-12 | 2023-07-14 | 昆明理工大学 | Method for extracting silver from complex lead bullion |
| CN116411175B (en) * | 2023-06-12 | 2023-08-25 | 昆明理工大学 | Fire refining method for complex lead bullion |
| CN116426766B (en) * | 2023-06-12 | 2023-08-29 | 昆明理工大学 | Method for extracting silver from complex lead bullion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1003310B (en) | 1989-02-15 |
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