CN109468471A - Purifying technique is concentrated for precious metal solution in one kind - Google Patents
Purifying technique is concentrated for precious metal solution in one kind Download PDFInfo
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- CN109468471A CN109468471A CN201811625820.4A CN201811625820A CN109468471A CN 109468471 A CN109468471 A CN 109468471A CN 201811625820 A CN201811625820 A CN 201811625820A CN 109468471 A CN109468471 A CN 109468471A
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- beaker
- chloroazotic acid
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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
- C22B11/04—Obtaining noble metals by wet processes
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
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Abstract
The invention discloses one kind to be concentrated purifying technique for precious metal solution.The present invention, which pours into the chloroazotic acid prepared, to be needed in beaker to be reacted when the first reactions such as amount of addition half are not violent every time when (ratio of the gold amount of the size and reaction of beaker be the beaker that about 100g gold uses 2500 milliliters) pours into chloroazotic acid in the remaining chloroazotic acid of addition, when chloroazotic acid reacts, beaker is placed in big container and hot water is added, it is reacted with water soluble method, entire about 1 hour of reaction process, after solution has been dissolved in chloroazotic acid, do not use iron, the mode of zinc and aluminium is restored, but it is slowly added to sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, stirring, it is straight to cause to can't see spongiform kermesinus bronze generation, it is slow added into dilute polyacrylamide liquid flocculation, precipitating, filtering, golden purity is obtained 99% or more, purity is higher, without purifying repeatedly.
Description
Technical field
The present invention relates to noble metal purification technique fields, specially a kind of that purifying technique is concentrated for precious metal solution.
Background technique
Noble metal refers mainly to 8 kinds of metallic elements such as gold, silver and platinum group metal (ruthenium, rhodium, palladium, osmium, iridium, platinum), these metals
The characteristics of be that density is big (10.4~22.4), fusing point height (916~3000 DEG C), chemical property is stablized, it is difficult to be corroded, these gold
Belong to most of colors for possessing beauty, it is quite big to the resistance of chemicals, it is not easy to cause chemical reaction under general condition,
Noble metal is used to production jewelry and souvenir, and there are also extensive industrial uses, are applied to electrical, electronics, aerospace industry,
And gold is one of the metal that rarer, more precious and pole is valued by people in noble metal, therefore, golden purity is also extremely seen
Weight needs a kind of gold solution that is used for that purifying technique is concentrated to purify to gold.
Existing gold solution concentration purifying technique is purified using chloroazotic acid mostly, after solution is dissolved in chloroazotic acid,
Mostly use iron, zinc and aluminium etc. to restore greatly, it is such first acid reacted just can, and obtained golden purity is lower, needs to mention repeatedly
It is pure.
Summary of the invention
The purpose of the present invention is to provide one kind to be concentrated purifying technique for precious metal solution, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of be concentrated purifying technique for precious metal solution,
Steps are as follows for specific concentration purifying technique:
Step 1: first filtering solution, removes the sundries such as dust, sawdust in solution, and filter paper rinses number with deionized water
It is secondary.
Step 2: configuration chloroazotic acid, the dosage of each chloroazotic acid is according to the amount of gold come fixed, the amount of gold and the ratio of nitric acid
Example is 1g:1.1 milliliters.
Step 3: the chloroazotic acid prepared, which is poured into, to be needed in beaker to be reacted, is preferably first added one when pouring into chloroazotic acid every time
Remaining chloroazotic acid is being added when the reactions such as half amount are not violent, chloroazotic acid reaction is that beaker should be placed in big container hot water is added,
It is reacted with water soluble method, about 1 hour of entire reaction process.
Step 4: being slowly added to sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, and stirring is straight to cause to can't see sea
The kermesinus bronze of continuous shape generates, and is slow added into dilute polyacrylamide liquid flocculation, precipitates, filtering.
Step 5: reacted beaker is placed on to heating on the electric furnace of asbestos board again and is seen whether there are also reacting, as heating has
Reaction about 20 minutes.
Step 6: by reacted solution filter-cloth filtering to the big medium reaction to be replaced of beaker, displaced beaker is wanted
Greatly directly with reaction beaker can also, until be added not until reaction.
Step 7: the liquid replaced being poured into vacant bucket, first with boiled water by sediment undergoes washing, until not having tart flavour
Until, ejected wash water is all poured into vacant bucket.
Preferably, the dosage ratio of chloroazotic acid is nitric acid: hydrochloric acid=1:3, and it is 1kg that the amount of gold, which cans be compared to, and the dosage of chloroazotic acid is just answered
This is 1100 milliliters of+3300 milliliters of nitric acid of hydrochloric acid.
Preferably, when pouring into the chloroazotic acid prepared needs in beaker to be reacted, the size of beaker and the gold amount of reaction
Ratio be about 2500 milliliters of beaker of 100g gold.
Preferably, reacted beaker cannot be placed at once on cold contact surface, be preferably placed on wood and paper shell.
Preferably, beaker must necessarily be placed in big container (suitable cold water is added in a such as big plastic barrel) hydration when displacement
About (2 milliliters: 1g), when reaction, is preferably replacing the dilution proportion of hydrazine hydrate water 1:1 for the ratio between dosage of hydrazine and gold amount,
The addition of displacement liquid is unsuitable too many every time, every time about 20ml or so.
Preferably, after the reaction was completed, all filter residues of crossing are poured into special container.
Compared with prior art, the beneficial effects of the present invention are: the present invention, which pours into the chloroazotic acid prepared, needs burning to be reacted
(ratio of the gold amount of the size and reaction of beaker be about 2500 milliliters of beaker of 100g gold) is poured into every when chloroazotic acid in cup
Remaining chloroazotic acid is being added when the reactions such as the secondary amount that half is first added are not violent, when chloroazotic acid reacts, beaker is placed in big container
Hot water is added, is reacted with water soluble method, about 1 hour of entire reaction process does not use after solution has been dissolved in chloroazotic acid
The mode of iron, zinc and aluminium is restored, but is slowly added to sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, stirring,
It is straight to cause to can't see spongiform kermesinus bronze generation, it is slow added into dilute polyacrylamide liquid flocculation, is precipitated, filtering obtains
For golden purity 99% or more, purity is higher, without purifying repeatedly.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
Provided by the invention a kind of for precious metal solution concentration purifying technique, steps are as follows for specific concentration purifying technique:
Step 1: first filtering solution, removes the sundries such as dust, sawdust in solution, and filter paper rinses number with deionized water
It is secondary.
Step 2: configuration chloroazotic acid, the dosage of each chloroazotic acid is according to the amount of gold come fixed, the amount of gold and the ratio of nitric acid
Example is 1g:1.1 milliliters.
Step 3: the chloroazotic acid prepared, which is poured into, to be needed in beaker to be reacted, is preferably first added one when pouring into chloroazotic acid every time
Remaining chloroazotic acid is being added when the reactions such as half amount are not violent, chloroazotic acid reaction is that beaker should be placed in big container hot water is added,
It is reacted with water soluble method, about 1 hour of entire reaction process.
Step 4: being slowly added to sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, and stirring is straight to cause to can't see sea
The kermesinus bronze of continuous shape generates, and is slow added into dilute polyacrylamide liquid flocculation, precipitates, filtering.
Step 5: reacted beaker is placed on to heating on the electric furnace of asbestos board again and is seen whether there are also reacting, as heating has
Reaction about 20 minutes.
Step 6: by reacted solution filter-cloth filtering to the big medium reaction to be replaced of beaker, displaced beaker is wanted
Greatly directly with reaction beaker can also, until be added not until reaction.
Step 7: the liquid replaced being poured into vacant bucket, first with boiled water by sediment undergoes washing, until not having tart flavour
Until, ejected wash water is all poured into vacant bucket.
The present embodiment, which pours into the chloroazotic acid prepared, needs (the ratio of the gold amount of the size and reaction of beaker in beaker to be reacted
Example is about 2500 milliliters of beaker of 100g gold) the first inviolent Shi Jia of reactions such as amount of addition half every time when pouring into chloroazotic acid
Enter remaining chloroazotic acid, when chloroazotic acid reacts, beaker is placed in big container and hot water is added, and is reacted with water soluble method, entire to react
About 1 hour of process is not restored after solution has been dissolved in chloroazotic acid by the way of iron, zinc and aluminium, but is slowly added
Entering sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, stirring is straight to cause to can't see spongiform kermesinus bronze generation,
It is slow added into dilute polyacrylamide liquid flocculation, is precipitated, filtering obtains golden purity 99% or more, and purity is higher, without repeatedly
Purification.
Embodiment 2
The dosage ratio of chloroazotic acid is nitric acid: hydrochloric acid=1:3, and it is 1kg that the amount of gold, which cans be compared to, and the dosage of chloroazotic acid should be just 1100
+ 3300 milliliters of nitric acid of hydrochloric acid of milliliter, the present embodiment is by being defined as 1:3, gold for the ratio column of nitric acid in chloroazotic acid and hydrochloric acid
Amount and nitric acid amount ratio be 1g:1.1ml, chloroazotic acid can be made sufficiently to react with solution.
Embodiment 3
When pouring into the chloroazotic acid prepared needs in beaker to be reacted, the ratio of the gold amount of the size and reaction of beaker is
About 2500 milliliters of beaker of 100g gold.
Embodiment 4
Reacted beaker cannot be placed at once on cold contact surface, be preferably placed on wood and paper shell, the present embodiment is anti-
The beaker answered has heat, if hot and cold alternation, beaker will appear the phenomenon in crack and breakage with cold contact face contact.
Embodiment 5
Beaker must necessarily be placed in the use of big container (suitable cold water is added in a such as big plastic barrel) hydrazine hydrate when displacement
About (2 milliliters: 1g), when reaction, is preferably replacing the dilution proportion of hydrazine hydrate water 1:1, displacement liquid for the ratio between amount and gold amount
Addition it is unsuitable too many every time, about 20ml or so, the present embodiment are diluted the ratio of hydrazine hydrate water 1:1 in reaction every time
It is being replaced afterwards, and displacement liquid is not easy excessively, to be conducive to displacement reaction every time, effect is more abundant.
Embodiment 6
After the reaction was completed, all filter residues of crossing are poured into special container, after the present embodiment will react, all crosses filter residue
It pours into the container of profession, pollution environment is prevented, in case post-processing.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any label in claim should not be construed as limiting the claims involved.
Claims (6)
1. purifying technique is concentrated for precious metal solution in one kind, it is characterised in that: steps are as follows for specific concentration purifying technique:
Step 1: first filtering solution, removes the sundries such as dust, sawdust in solution, and filter paper is rinsed for several times with deionized water.
Step 2: configuration chloroazotic acid, the dosage of each chloroazotic acid are according to the amount of gold come fixed, and the amount of gold and the ratio of nitric acid are
1g:1.1 milliliters.
Step 3: the chloroazotic acid prepared, which is poured into, to be needed in beaker to be reacted, and half is preferably first added every time when pouring into chloroazotic acid
Remaining chloroazotic acid is being added when the reactions such as amount are not violent, and chloroazotic acid reaction is that beaker should be placed in big container hot water is added, and uses water
Molten method is reacted, about 1 hour of entire reaction process.
Step 4: being slowly added to sieved sodium hydrogensulfite fine powder (more than 200 mesh) reduction, stirring, and straight cause can't see spongy
Kermesinus bronze generate, be slow added into dilute polyacrylamide liquid flocculation, precipitate, filtering.
Step 5: reacted beaker is placed on to heating on the electric furnace of asbestos board again and is seen whether there are also reacting, as heating has reaction
About 20 minutes.
Step 6: by reacted solution filter-cloth filtering to the big medium reaction to be replaced of beaker, displaced beaker is straight greatly
Connect with reaction beaker can also, until be added not until reaction.
Step 7: the liquid replaced being poured into vacant bucket, first with boiled water by sediment undergoes washing, until not having tart flavour to be
Only, ejected wash water is all poured into vacant bucket.
2. according to claim 1 a kind of for precious metal solution concentration purifying technique, it is characterised in that: the dosage of chloroazotic acid
Than for nitric acid: hydrochloric acid=1:3, it is 1kg that the amount of gold, which cans be compared to, and the dosage of chloroazotic acid should be just 1100 milliliters of+3300 milli of nitric acid
The hydrochloric acid risen.
3. according to claim 1 a kind of for precious metal solution concentration purifying technique, it is characterised in that: what will be prepared
When chloroazotic acid is poured into need beaker to be reacted, the ratio of the gold amount of the size and reaction of beaker is 2500 millis of about 100g gold
The beaker risen.
4. according to claim 1 a kind of for precious metal solution concentration purifying technique, it is characterised in that: reacted burning
Cup cannot be placed at once on cold contact surface, be preferably placed on wood and paper shell.
5. according to claim 1 a kind of for precious metal solution concentration purifying technique, it is characterised in that: beaker when displacement
It must necessarily be placed in the ratio between dosage and gold amount of big container (suitable cold water is added in a such as big plastic barrel) hydrazine hydrate about (2
Milliliter: 1g), when reaction, is preferably replacing the dilution proportion of hydrazine hydrate water 1:1, and the addition of displacement liquid every time should not be too
It is more, about 20ml or so every time.
6. according to claim 1 a kind of for precious metal solution concentration purifying technique, it is characterised in that: reaction is completed
Afterwards, all filter residues of crossing are poured into special container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625820.4A CN109468471A (en) | 2018-12-28 | 2018-12-28 | Purifying technique is concentrated for precious metal solution in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625820.4A CN109468471A (en) | 2018-12-28 | 2018-12-28 | Purifying technique is concentrated for precious metal solution in one kind |
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| Publication Number | Publication Date |
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| CN109468471A true CN109468471A (en) | 2019-03-15 |
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ID=65678234
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625820.4A Pending CN109468471A (en) | 2018-12-28 | 2018-12-28 | Purifying technique is concentrated for precious metal solution in one kind |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067490A (en) * | 2020-09-16 | 2020-12-11 | 励福(江门)环保科技股份有限公司 | Novel gravimetric method for determining gold content in aqua regia |
| CN113652555A (en) * | 2021-08-16 | 2021-11-16 | 广东长信精密设备有限公司 | Recovery method and recovery system of aluminum-containing precious metal raw material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660048A (en) * | 2009-09-24 | 2010-03-03 | 无锡市霄鹰环境科技有限公司 | Multilevel processing technology for recovering and utilizing precious metal wastes or waste liquid |
| CN101928825A (en) * | 2010-08-26 | 2010-12-29 | 河南中原黄金冶炼厂有限责任公司 | Gold wet-process purification method |
| CN102796874A (en) * | 2012-07-31 | 2012-11-28 | 方孝玲 | Technology for recovering gold and silver from electronic waste by new biological method |
| CN103074492A (en) * | 2013-01-24 | 2013-05-01 | 贵研资源（易门）有限公司 | Method for separating and purifying gold from noble metal solution |
| CN103361485A (en) * | 2012-04-09 | 2013-10-23 | 深圳市格林美高新技术股份有限公司 | Technology for comprehensively recycling rare noble metals in waste LED (light-emitting diode) |
| CN103977581A (en) * | 2014-05-28 | 2014-08-13 | 扬州宁达贵金属有限公司 | Concentration denitration device for gold-bearing aqua regia solution |
| CN108660322A (en) * | 2017-03-31 | 2018-10-16 | 深圳市星月珠宝首饰有限公司 | A method of recycling noble metal from discarded noble metal catalyst |
-
2018
- 2018-12-28 CN CN201811625820.4A patent/CN109468471A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660048A (en) * | 2009-09-24 | 2010-03-03 | 无锡市霄鹰环境科技有限公司 | Multilevel processing technology for recovering and utilizing precious metal wastes or waste liquid |
| CN101928825A (en) * | 2010-08-26 | 2010-12-29 | 河南中原黄金冶炼厂有限责任公司 | Gold wet-process purification method |
| CN103361485A (en) * | 2012-04-09 | 2013-10-23 | 深圳市格林美高新技术股份有限公司 | Technology for comprehensively recycling rare noble metals in waste LED (light-emitting diode) |
| CN102796874A (en) * | 2012-07-31 | 2012-11-28 | 方孝玲 | Technology for recovering gold and silver from electronic waste by new biological method |
| CN103074492A (en) * | 2013-01-24 | 2013-05-01 | 贵研资源（易门）有限公司 | Method for separating and purifying gold from noble metal solution |
| CN103977581A (en) * | 2014-05-28 | 2014-08-13 | 扬州宁达贵金属有限公司 | Concentration denitration device for gold-bearing aqua regia solution |
| CN108660322A (en) * | 2017-03-31 | 2018-10-16 | 深圳市星月珠宝首饰有限公司 | A method of recycling noble metal from discarded noble metal catalyst |
Non-Patent Citations (2)
| Title |
|---|
| 张瑴主编: "《普通高等教育地质矿产类规划教材 岩石矿物分析 第二版》", 30 April 1992, 地质出版社 * |
| 新疆地质局实验室编: "《矿物原料分析法》", 30 June 1972, 新疆地质局实验室 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067490A (en) * | 2020-09-16 | 2020-12-11 | 励福(江门)环保科技股份有限公司 | Novel gravimetric method for determining gold content in aqua regia |
| CN113652555A (en) * | 2021-08-16 | 2021-11-16 | 广东长信精密设备有限公司 | Recovery method and recovery system of aluminum-containing precious metal raw material |
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Application publication date: 20190315 |