CN1928528B - Homogenisation and analysis method for use in the reconditioning of moist reconditioning materials containing precious metal - Google Patents
Homogenisation and analysis method for use in the reconditioning of moist reconditioning materials containing precious metal Download PDFInfo
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- CN1928528B CN1928528B CN2006101291851A CN200610129185A CN1928528B CN 1928528 B CN1928528 B CN 1928528B CN 2006101291851 A CN2006101291851 A CN 2006101291851A CN 200610129185 A CN200610129185 A CN 200610129185A CN 1928528 B CN1928528 B CN 1928528B
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Abstract
For processing of noble metal-containing, moist recycling materials with an unknown noble metal content (hereinafter called ''batch''), a moisture-binding agent is added for homogenisation and the batch is mixed with comminution of optionally pre-sent agglomerates to form a free-flowing and homogenous powder. Optionally, the following takes place subsequently for analysis: A at least one representative, volume-reduced sample is taken first of all, B the sample is dried, C the sample is optionally divided further and D the sample is analyzed and the noble metal content of the batch is calculated on the basis of the data a previously known or pre-calculated quantity of the moisture-binding agent being added before sampling (step A).
Description
Technical field
The present invention relates to have homogenising and/or the analytical approach of material after-treatment (to call " being processed material " in the following text) in last handling process unknown bullion content, that contain noble metal and humidity, above-mentioned material relates in particular to used catalyzer.
Background technology
According to the content of patented claim WO03/038405A1 (Johnson Matthey), need improve the sampling and analysing method of the waste material that contains precious materials.Document suggestion is dispersed in waste material in a kind of fluid, and the continuous little mass parts of getting is to analyze.
Be known that and absorb the moisture content in institute's material conveying by means of moisture absorption medium,, be processed material and approach uniform dryingization through to assembling the suitable mixing and the pulverization of material.
Summary of the invention
Therefore, the present invention relates to a kind of the method for claim 1.
At first, form a kind of flowable powder of relatively dry.Then, get a middle sample, it is carried out being divided into single final sample to this sample after the drying.
In order to analyze, the amount of moisture absorption medium also will be known or precompute to come in advance, like this so that through after analyzing, can determine the actual content of the precious materials in the waste material of sending.
Therefore, the invention still further relates to a kind of homogenising as claimed in claim 2 and analytical approach.
The invention still further relates to according to after the favourable embodiment of described these the two kinds of methods of claim.
One preferred embodiment in, that is sent is processed the water sucting medium that material adds a kind of known quantity or the amount of precomputing, and like a kind of organic polymer, especially be perhaps a kind of so-called super hygroscopic agent of a kind of crosslinked polyacrylate.
The purpose of doing like this is further to absorb the weight that is processed in the material can reach about 20 to 80% wet branch or moisture.
The method also relates to a particularly advantageous embodiment that contains Pd/carbon catalyst (to call charcoal in the following text) residue, and wherein above-mentioned residue is transferred under the condition of humidity.This material must pass through analysis so that the information of relevant precious materials content to be provided to conveying person.This material must be as much as possible evenly to take a sample.
At this preferably, stir or mixed process in from potpourri, take out a or multiple sample more.
Above-mentioned mixing suits in mixer, to strengthen through the cutting rotor.
With taken out should/these middle samples carry out suitable drying, in case of necessity it is combined and further segmentation (heruntergeteilt), for example, by the center rotary gas separator.These samples that are dried have preferably that < particle size of 500 μ m, more preferably particle size is < 100 μ m.
After the analysis of being undertaken by known method, institute's sample thief is processed material with remaining and can be sent in the noble metal recovery process.
Described humidity is caused by water and/or organic solvent.
Relate under the situation of organic solvent in wet the branch, can consider like activated charcoal etc. as moisture absorption medium.Relate under the situation of water in wet the branch, common water sucting medium such as zeolite get final product.Especially advantageously, can adopt so-called super hygroscopic agent as absorbent material.
Super hygroscopic agent is a crosslinked insoluble polymer a little less than in the of a type, and this polymkeric substance can absorb moisture or the aqueous solution that is multiple times than own wt.Sharply swell after their suctions, form a kind of " hydrogel ".For forming hydrogel, all cross-linked polymers should have enough polar groups, as, polyacrylamide, polyvinylpyrrolidone and natural polymer such as amylopectin, gelatin and cellulose etc.Therefore, also can put into like starch-vinyl cyanide polystyrene copolymer.The polymkeric substance that has inorganic group, when especially absorbing large quantity of moisture, because the repulsive interaction between each (waiting electric charge) inorganic group, above-mentioned polymkeric substance is the extension shape.Therefore hydrone can accumulate in around the ion well, and through stablizing this state like interactions such as hydrogen bond and polar group arrangements.
For acrylic acid (propenyl acid, C
3H
4O
2) and PAA (acrylic acid sodium salt, NaC
3H
3O
2) multipolymer; Wherein the relation of two monomers can change each other in this multipolymer; Can add a kind of what is called nuclear crosslinking chemical (Kernvernetzer) (Core-cross-Linker of monomer solution in addition; CXL), this nuclear crosslinking chemical partly combines (this i.e. " crosslinked ") each other through chemical bond with established long chain polymer.Through this keyed jointing, it is water insoluble that polymkeric substance becomes.Infiltrate in the polymer beads subprocess at the WS of water or salt, the polymer particle swelling and under the condition of this reticulate texture of tension on the molecular level-not have like this to assist moisture can not overflow again.
According to prior art, people are called " matrix polymer " with the product of this form, in recent years, grow up for the demand of super hygroscopic agent, further improve method and also are employed.(Surface-Cross-Linking SXL) is classified as most important super hygroscopic agent to so-called surface crosslinking agent.At this, also need on the surface of each particle, apply another kind of chemicals, and, will only on the skin of particle, form a kind of two grade network through the reaction under the heating condition.Through the same tension that takes place of moisture absorption under the pressure condition itself, this network structure has stoped the escape that is absorbed solution.
Reach the object of the invention, the super hygroscopic agent of the first generation can meet the demands.But, therefore also can use the super hygroscopic agent of a new generation in this way owing to use super hygroscopic agent can predict contained processing waste material.
Above-mentioned super hygroscopic agent also can mix use with activated charcoal.
Description of drawings
Fig. 1 illustrates the synoptic diagram of a kind of embodiment of the inventive method.
Embodiment
Fig. 1 illustrates a schematic embodiment of this method.Contain used catalyst (being processed material) noble metal, that bullion content is unknown and a certain amount of super hygroscopic agent and mix, take a sample then.Sample to mixing carries out drying, separates once more and analyzes.Dried sample has the < particle size of 100 μ m.Because the super moisture absorption dosage of absorption moisture calculates in advance and is known, so the content of noble metal also can calculate in the sample.
Claims (18)
1. contain the homogenization method of material after-treatment in aftertreatment noble metal, that humidity and bullion content are unknown, it is characterized in that adding a kind of moisture absorption medium and mixing, material after-treatment is blended in a kind of flowable uniform powder.
2. method according to claim 1 is characterized in that, in mixed process, compound is pulverized.
3. method according to claim 1, wherein,
A at first gets a or multiple sample,
The dry said sample of B,
C further segments said sample alternatively,
D analyzes said sample, and according to the bullion content in the data computation material after-treatment,
It is characterized in that, before sampling procedure A, add a kind of known quantity or the moisture absorption medium and the mixing of calculated amount in advance, material after-treatment is sneaked in a kind of flowable uniform powder.
4. method according to claim 3 is characterized in that, in mixed process, compound is pulverized.
5. method according to claim 1, wherein said moisture absorption medium are a kind of water sucting medium.
6. method according to claim 5, wherein said water sucting medium are a kind of organic polymer.
7. method according to claim 6, wherein said organic polymer are a kind of crosslinked polyacrylate.
8. method according to claim 5, wherein said water sucting medium are a kind of super hygroscopic agent.
9. method according to claim 1, wherein said moisture absorption medium are activated charcoal.
10. method according to claim 1, wherein said moisture absorption medium are a kind of potpourri that contains activated charcoal and a kind of super hygroscopic agent.
11. according to the arbitrary described method of claim 1-8, wherein said material after-treatment is made up of the used catalyzer that contains noble metal.
12. according to the arbitrary described method of claim 1-8, the weight % of moisture is 20-80% in the wherein said material after-treatment.
13. method according to claim 3 is wherein taken a sample from material after-treatment in mixed process, and afterwards biased sample is carried out drying, so that follow-up mixing and pulverizing are other sample.
14. method according to claim 13 wherein adopts rotary gas separator to realize above-mentioned pulverizing.
15. method according to claim 11, wherein said used catalyzer contains the noble metal that is adsorbed on the activated charcoal.
16. method according to claim 11, the dry sample that wherein said step B obtains are the solid of a kind of particle size＜500 μ m.
17. method according to claim 16, the dry sample that wherein said step B obtains are the solid of a kind of particle size＜100 μ m.
18. according to claim 2 or 4 described methods, wherein said mixing and said crushing process one have the cutting rotor the enhancing mixed device in carry out.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005043286 | 2005-09-09 | ||
| DE102005043286.7 | 2005-09-09 | ||
| DE102005049702.0 | 2005-10-14 | ||
| DE200510049702 DE102005049702A1 (en) | 2005-09-09 | 2005-10-14 | Homogenization and optionally analysis method in the processing of moist noble metal-containing work-up materials with unknown noble metal content |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1928528A CN1928528A (en) | 2007-03-14 |
| CN1928528B true CN1928528B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101291851A Active CN1928528B (en) | 2005-09-09 | 2006-09-06 | Homogenisation and analysis method for use in the reconditioning of moist reconditioning materials containing precious metal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1928528B (en) |
| ZA (1) | ZA200607514B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2977255C (en) * | 2015-03-06 | 2023-01-31 | Imp Group (Pty) Ltd | A method and a container for preparing a fused sample for analysis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5403566A (en) * | 1990-10-13 | 1995-04-04 | Bayer Ag | Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber |
| US5939086A (en) * | 1995-06-07 | 1999-08-17 | Lee County Mosquito Control District | Compositions and methods for reducing the amount of contaminants in aquatic and terrestrial environments |
| WO2003033546A1 (en) * | 2001-10-17 | 2003-04-24 | Kaneka Corporation | Process for producing vinyl polymer |
| CN1578902A (en) * | 2001-11-02 | 2005-02-09 | 约翰逊马西有限公司 | Improvements in materials handling and sampling |
-
2006
- 2006-09-06 CN CN2006101291851A patent/CN1928528B/en active Active
- 2006-09-08 ZA ZA200607514A patent/ZA200607514B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5403566A (en) * | 1990-10-13 | 1995-04-04 | Bayer Ag | Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber |
| US5939086A (en) * | 1995-06-07 | 1999-08-17 | Lee County Mosquito Control District | Compositions and methods for reducing the amount of contaminants in aquatic and terrestrial environments |
| WO2003033546A1 (en) * | 2001-10-17 | 2003-04-24 | Kaneka Corporation | Process for producing vinyl polymer |
| CN1578902A (en) * | 2001-11-02 | 2005-02-09 | 约翰逊马西有限公司 | Improvements in materials handling and sampling |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200607514B (en) | 2008-05-28 |
| CN1928528A (en) | 2007-03-14 |
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