CN101781715A - Physical method for enriching rare/noble metals in noble-metal die-supporting substances - Google Patents
Physical method for enriching rare/noble metals in noble-metal die-supporting substances Download PDFInfo
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- CN101781715A CN101781715A CN 201010121930 CN201010121930A CN101781715A CN 101781715 A CN101781715 A CN 101781715A CN 201010121930 CN201010121930 CN 201010121930 CN 201010121930 A CN201010121930 A CN 201010121930A CN 101781715 A CN101781715 A CN 101781715A
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- water
- raw materials
- wash away
- raw material
- hushing
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Abstract
The invention relates to a scour-method process for enriching heavy/rare/noble metals, which is applicable to the recovery of trace of residual noble metals contained by waste supporting substances. The process comprises the following: a step 1 of grinding, which is to put raw materials (support bricks) in a grinder and grind the raw materials into broken blocks 3 to 5 centimeters in diameter; a step 2 of wet grinding, which is to put broken-block raw materials with diameters of 3 to 5 centimeters in a ball mill and wet-grind the broken-block raw materials in the environment with water to be 200-mesh fine powder; a step 3 of enriching, which is to put the 200-mesh fine powder in a scouring groove and use water at a certain rate to scour for separation; and a step 4 of purifying, which is to put the raw materials subjected to enrichment in the step 3 in a glass container and add an appropriate quantity of chemical reagents to remove common metals. The process has the advantages of no pollution, high enrichment degree, high product purity and the like.
Description
Technical field
The present invention relates to the rare precious metal in a kind of physical method for enriching precious metal mould upholder, be applicable to the recovery that contains the precious metal of minimal residue in the useless upholder.Belong to wet method extractive technique field.
Background technology
In recent years China's fiber glass industry has had significant progress, the crucible bushing that is formed by platinum rhodium materials processing is an indispensable key device during glass fibre is produced, generally about 1200 ℃, platinum rhodium partly volatilizees among upholder-holder brick its processing temperature after the long-time continuous operation.Thereby be the important topic that people study from the recovery that useless holder brick etc. contains rare precious metal.The method of existing employing has: sintering process, metal method of trapping, sodium hydroxide scorification, gravity treatment partition method etc., and the investment that these methods have is big, and the intermediate materials consumption that has is big, and the complex process and the yield that have are low, and middle material is contaminate environment also.As the sodium hydroxide scorification is that holder brick and sodium hydroxide mixing are packed in the iron crucible, makes it become water-soluble substance after 500-700 ℃ of condition fusion, again hydrometallurgic recovery platinum from undissolved residue.So designing a kind of technology, simply to save the precious metal recovery method of intermediate material imperative.
Summary of the invention
In order to improve enrichment speed and accumulation rate, elimination pollution, the invention provides the rare precious metal in a kind of physical method for enriching precious metal mould upholder to environment.
To achieve these goals, technical scheme of the present invention comprises step 1 pulverizing: place pulverizer to be ground into the fragment that diameter is 3-5cm raw material (holder brick); Step 2 wet-milling: with diameter is that 3-5cm fragment raw material places ball mill thin foam of wet-milling to 200 order under the environment of band water; Step 3 enrichment: the thin foam raw material of 200 orders placed wash away ditch and wash away separation with the water of given pace; Step 4 is purified: will place Glass Containers through the former reality after step 3 enrichment, and add an amount of chemical reagent and remove plain metal.It is characterized in that the thin foam raw material of 200 orders placed and wash away ditch and wash away separation with the water of given pace.The described process of washing away adopts water to wash away.Cross section, ditch bottom, described road is a circular arc; The speed of described flush water is 0.9-1.1m/s.
That the present invention has is pollution-free, enrichment degree is high, the product purity advantages of higher.
Embodiment
Getting an amount of holder brick (refractory materials of support manufacturing glass fiber crucible bushing), to place pulverizer to carry out cutting and grinding be the 3-5cm fragment to diameter, then fragment is placed ball mill, and adding a certain amount of water, to carry out ball milling be thin foam about 200 orders to diameter.Thin foam about above-mentioned 200 orders is placed among the coombe road of about 2.5m, wide about 0.6m, and float filtration, obtain platinum content higher (about's more than 95%) metal particle, get purity through chemical removal impurity again and reach 99.9% platinum with the water flushing of 1m/s speed.
Claims (4)
1. a process for gathering heavy rare noble metal by hushing method comprises step 1 pulverizing: place pulverizer to be ground into the fragment that diameter is 3-5cm raw material (holder brick); Step 2 wet-milling: with diameter is that 3-5cm fragment raw material places ball mill thin foam of wet-milling to 200 order under the environment of band water; Step 3 enrichment: the thin foam raw material of 200 orders placed wash away ditch and wash away separation with the water of given pace; Step 4 is purified: will place Glass Containers through the former reality after step 3 enrichment, and add an amount of chemical reagent and remove plain metal, it is characterized in that with about 200 orders carefully the foam raw material place and wash away ditch and wash away separation with the water of given pace.
2. a kind of process for gathering heavy rare noble metal by hushing method according to claim 1 is characterized in that the described process of washing away adopts water to wash away.
3. a kind of process for gathering heavy rare noble metal by hushing method according to claim 1 and 2, the speed that it is characterized in that described flush water is 0.9-1.1m/s.
4. a kind of process for gathering heavy rare noble metal by hushing method according to claim 1 is characterized in that the described bottom, water side of washing away ditch is provided with the baffle plate of suitable height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010121930 CN101781715A (en) | 2010-03-11 | 2010-03-11 | Physical method for enriching rare/noble metals in noble-metal die-supporting substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010121930 CN101781715A (en) | 2010-03-11 | 2010-03-11 | Physical method for enriching rare/noble metals in noble-metal die-supporting substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101781715A true CN101781715A (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010121930 Pending CN101781715A (en) | 2010-03-11 | 2010-03-11 | Physical method for enriching rare/noble metals in noble-metal die-supporting substances |
Country Status (1)
| Country | Link |
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| CN (1) | CN101781715A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD265763A3 (en) * | 1987-06-29 | 1989-03-15 | Funk A Bergbau Huettenkombinat | METHOD FOR RECOVERING PLATINUM METALS FROM REFRACTORY MATERIALS |
| US4814003A (en) * | 1988-01-29 | 1989-03-21 | Bergner Richard M | Apparatus and method for extraction and recovery of precious metal using coherent radiation |
| WO2000017407A1 (en) * | 1998-09-21 | 2000-03-30 | M.I.M. Holdings Limited | Method for treating precious metal bearing minerals |
| CN101397608A (en) * | 2008-11-12 | 2009-04-01 | 中材科技股份有限公司 | Method for enriching and recovering metal platinum and rhodium from waste refractory materials |
-
2010
- 2010-03-11 CN CN 201010121930 patent/CN101781715A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD265763A3 (en) * | 1987-06-29 | 1989-03-15 | Funk A Bergbau Huettenkombinat | METHOD FOR RECOVERING PLATINUM METALS FROM REFRACTORY MATERIALS |
| US4814003A (en) * | 1988-01-29 | 1989-03-21 | Bergner Richard M | Apparatus and method for extraction and recovery of precious metal using coherent radiation |
| WO2000017407A1 (en) * | 1998-09-21 | 2000-03-30 | M.I.M. Holdings Limited | Method for treating precious metal bearing minerals |
| CN101397608A (en) * | 2008-11-12 | 2009-04-01 | 中材科技股份有限公司 | Method for enriching and recovering metal platinum and rhodium from waste refractory materials |
Non-Patent Citations (2)
| Title |
|---|
| 《中国资源综合利用》 19841231 刘坚志 用选矿方法从玻纤工业废耐火砖中回收铂铑合金 30、39 1-4 , 第3期 2 * |
| 《国外金属矿选矿》 19861231 李牟等 从含铂铑的粘土废料中回收铂和铑的选-冶联合生产实践 23-24、28 1-4 , 第8期 2 * |
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Open date: 20100721 |