CN102087218B - Method for identifying extent of replacement purification reaction of platinum group metals - Google Patents
Method for identifying extent of replacement purification reaction of platinum group metals Download PDFInfo
- Publication number
- CN102087218B CN102087218B CN2010105676243A CN201010567624A CN102087218B CN 102087218 B CN102087218 B CN 102087218B CN 2010105676243 A CN2010105676243 A CN 2010105676243A CN 201010567624 A CN201010567624 A CN 201010567624A CN 102087218 B CN102087218 B CN 102087218B
- Authority
- CN
- China
- Prior art keywords
- displacement
- color
- platinum
- colorimetric card
- copper powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a method for identifying the extents of replacement purification reactions of platinum group metals. The method is characterized in that the identifying process is as follows: replacing noble metal liquid containing gold extracting organic phase with copper powder to obtain different extents of standard solution, taking the colors which are obtained after dropwise adding chemical reagents tin dichloride and ethyl acetate to the different extents of standard solution as the standards to prepare colorimetric cards with the corresponding colors; and comparing the colors which are obtained after dropwise adding chemical reagents tin dichloride and ethyl acetate to the noble metal liquid sample containing gold extracting organic phase, which is being replaced with copper powder, with the colorimetric cards, and identifying the extents of reaction corresponding to the colorimetric cards with colors the same as the obtained colors as the extents of the replacement reactions which are being carried out by using copper powder. The method has the beneficial effects of realizing rapid and effective judgment of the end point of the process of replacing the noble metal liquid after gold extraction with copper powder to separate platinum and palladium from rhodium and iridium, saving numerous reagents used for judging the end point of the process, reducing the replacement period, effectively improving the replacement effect and greatly improving the once qualified rate of the platinum products.
Description
Technical field
A kind of evaluation platinum group metal displacement purified reaction degree methods; Relate to platinum group metal displacement purification process displace reaction end, the noble metal feed liquid that particularly contains the golden organic phase of coming together is replaced the authentication method of the replacement process degree that platinum, palladium are separated with rhodium, iridium with copper powder.
Background technology
The noble metal feed liquid that contains the golden organic phase of coming together with the copper powder displacement with in platinum, palladium and the replacement process that rhodium, iridium separate; Once replacing terminal point often is difficult to grasp; Need veteran operating personnel to observe comparison repeatedly, use the chemical reagent of at present joining in a large number simultaneously and combine Instrument measuring to judge repeatedly, the endpoint process will consume great amount of time, manpower, the energy, reagent; And can produce very big-difference because of operating personnel's difference; Cause the operating cycle long, displacement efficiency is low, has influenced the qualification rate of platinum group metal product greatly.
Summary of the invention
Purpose of the present invention is the deficiency that exists to above-mentioned prior art; Provide a kind of and can replace terminal point according to organic phase color Rapid identification and control; Reduce operating personnel's error in judgement; Effectively dwindle the terminal point scope, operation is quick, effective, evaluation platinum group metal displacement purified reaction degree methods easy to use.
The objective of the invention is to realize through following technical scheme.
A kind of evaluation platinum group metal displacement purified reaction degree methods; It is characterized in that qualification process is to replace standard solution in various degree with the noble metal feed liquid that contains the golden organic phase of coming together with copper powder; Face look behind dropping chemical reagent stannous chloride and the ethyl acetate is as the criterion, and processes the colorimetric card of corresponding face look; With the noble metal feed liquid sample that contains the golden organic phase of coming together of replacing with copper powder; Face look behind dropping chemical reagent stannous chloride and the ethyl acetate; Compare with colorimetric card,, be accredited as the degree of carrying out displacement reaction with copper powder with the face form and aspect corresponding extent of reaction of colorimetric card together.
A kind of evaluation of the present invention platinum group metal displacement purified reaction degree methods, the ratio that it is characterized in that dropping to chemical reagent stannous chloride and ethyl acetate and feed liquid in the feed liquid to be checked is a feed liquid: stannous chloride: ethyl acetate equals 4:4:1.
A kind of evaluation of the present invention platinum group metal displacement purified reaction degree methods is characterized in that the face look of displacement reaction standard solution in various degree is coated with on a colorimetric card by displacement degree compliance successively.
A kind of evaluation of the present invention platinum group metal displacement purified reaction degree methods; Realized the noble metal feed liquid behind the gold that comes together is carried out the judgement fast and effectively of the terminal point of copper powder replaced and separated platinum, palladium and rhodium, iridium process; The used a large amount of reagent of this process judgment terminal point have been practiced thrift; Reduce period of a permutation, effectively raised replacement result, improved the first-time qualification rate of platinum product greatly.
Embodiment
A kind of evaluation platinum group metal displacement purified reaction degree methods; Qualification process is to replace standard solution in various degree with the noble metal feed liquid that contains the golden organic phase of coming together with copper powder; Face look behind dropping chemical reagent stannous chloride and the ethyl acetate is as the criterion, and processes the colorimetric card of corresponding face look; With the noble metal feed liquid sample that contains the golden organic phase of coming together of replacing with copper powder; Face look behind dropping chemical reagent stannous chloride and the ethyl acetate; Compare with colorimetric card,, be accredited as the degree of carrying out displacement reaction with copper powder with the face form and aspect corresponding extent of reaction of colorimetric card together; The chemical reagent stannous chloride and the volume ratio between ethyl acetate and the feed liquid that drop in the feed liquid to be checked are feed liquids: stannous chloride: ethyl acetate equals 4:4:1.
Colorimetric card can be with there being certain degree of hardness, wear-resisting paper, glass, and plastics or other material are made, and its size is easy to watch get final product as long as satisfy convenient the use.Choose after material, the size on this card to brush respectively and in advance can accomplish making based on the colored paint of the good different colours of feed liquid mixing color by 6 look districts.Method of application is the color with feed liquid top organic phase in this colorimetric card contrast replacement process, when its be in colorimetric card on can judge immediately that displacement fully during E look district solid colour.This utility model has realized the noble metal feed liquid behind the gold that comes together is carried out the judgement fast and effectively of the terminal point of copper powder replaced and separated platinum, palladium and rhodium, iridium process; The used a large amount of reagent of this process judgment terminal point have been practiced thrift; Reduced period of a permutation; Effectively raise replacement result, improved the first-time qualification rate of platinum product greatly.
During operation; With chemical reagent and combine instrument to measure to judging in various degree with the copper powder displacement with the noble metal feed liquid that contains the golden organic phase of coming together; Process standard solution; Drip the chemical reagent stannous chloride again and form different standard face looks, different standard face looks is coated with on colorimetric card with ethyl acetate; With the noble metal feed liquid sample that contains the golden organic phase of coming together of replacing with copper powder, face look and colorimetric card behind dropping chemical reagent stannous chloride and the ethyl acetate compare.
Embodiment 1
With chemical reagent and combine instrument to measure to judging in various degree with the copper powder displacement with the noble metal feed liquid that contains the golden organic phase of coming together, process standard solution, drip the chemical reagent stannous chloride again and form different standard face looks with ethyl acetate:
The about 70%-75% of displacement platinum is during rhodium 1%-3%; Color is rose-red for deeply; On colorimetric card, coat dark rose A district;
The about 75%-79% of displacement platinum is during rhodium 3%-6%; Color is rose-red; On colorimetric card, coat rose B district;
The about 79%-84% of displacement platinum is during rhodium 6%-8%; Color is shallow rose-red; On colorimetric card, coat shallow rose C district;
The about 85%-89% of displacement platinum is during rhodium 8%-11%; Color is dark lemon yellow; On colorimetric card, coat dark lemon yellow D district;
The about 90%-99.5% of displacement platinum is during rhodium 11%-18%; Color is a lemon yellow; On colorimetric card, coat lemon yellow E district;
Displacement platinum is about 100%, and during rhodium 40%-50%, color is shallow lemon yellow, on colorimetric card, coats shallow lemon yellow F district.
Colorimetric card can be with there being certain degree of hardness, wear-resisting paper, glass, and plastics or other material are made, and its size is easy to watch get final product as long as satisfy convenient the use.Choose after material, the size on this card to brush respectively and in advance can accomplish making based on the colored paint of the good different colours of feed liquid mixing color by 6 look districts.
Embodiment 2
Get the noble metal feed liquid sample that contains the golden organic phase of coming together of replacing, drip chemical reagent stannous chloride and ethyl acetate with copper powder; When the organic phase color is consistent with the dark rose of A district, can judges and replace the about 70%-75% of platinum, the about 1%-3% of rhodium; When the organic phase color is consistent with B rose district, can judges and replace the about 75%-79% of platinum, the about 3%-6% of rhodium; When the organic phase color is consistent with the shallow rose of C district, can judges and replace the about 79%-84% of platinum, the about 6%-8% of rhodium; When the organic phase color is consistent with the dark lemon yellow of D district, can judges and replace the about 85%-89% of platinum, the about 8%-11% of rhodium; When the organic phase color is consistent with E lemon yellow district, can judges and replace the about 90%-99.5% of platinum, the about 11%-18% of rhodium; When the organic phase color is consistent with the shallow lemon yellow of F district, can judge that to have replaced platinum about 100%, rhodium about 40% ~ 50%.Need replace platinum to greatest extent in the actual displacement purification process of platinum group metal and control the replacement rate of rhodium; So when the color of feed liquid top organic phase is consistent with the E look district on the colorimetric card in managing; Can be judged as displacement reaction and reach requirement; Stop the adding of copper powder this moment, finish replacement process.
Need replace platinum to greatest extent in the actual displacement purification process of platinum group metal and control the replacement rate of rhodium; So when the color of feed liquid top organic phase is consistent with the E look district on the colorimetric card in managing; Can be judged as displacement reaction and reach requirement; Stop the adding of copper powder this moment, finish replacement process.
Method of the present invention; Realized the noble metal feed liquid behind the gold that comes together is carried out the judgement fast and effectively of the terminal point of copper powder replaced and separated platinum, palladium and rhodium, iridium process; The used a large amount of reagent of this process judgment terminal point have been practiced thrift; Reduce period of a permutation, effectively raised replacement result, improved the first-time qualification rate of platinum product greatly.In its use, can make rhodium, iridium direct yield improve about 15%, improve the once efficient of displacement greatly, can improve the situation that platinum in the product, rhodium contain mutually simultaneously, improve the first-time qualification rate of platinum product effectively.
Claims (2)
1. identify platinum group metal displacement purified reaction degree methods for one kind; It is characterized in that qualification process is to replace standard solution in various degree with the noble metal feed liquid that contains the golden organic phase of coming together with copper powder; The color that drips behind chemical reagent stannous chloride and the ethyl acetate is as the criterion, and the color of displacement reaction standard solution in various degree is coated with on a colorimetric card by the displacement degree successively in proper order, processes the colorimetric card of respective color; The about 70%-75% of displacement platinum; During rhodium 1%-3%, color is rose-red for deeply, on colorimetric card, coats dark rose A district; The about 75%-79% of displacement platinum, during rhodium 3%-6%, color is rose-red, on colorimetric card, coats rose B district; The about 79%-84% of displacement platinum, during rhodium 6%-8%, color is shallow rose-red, on colorimetric card, coats shallow rose C district; The about 85%-89% of displacement platinum, during rhodium 8%-11%, color is dark lemon yellow, on colorimetric card, coats dark lemon yellow D district; The about 90%-99.5% of displacement platinum, during rhodium 11%-18%, color is a lemon yellow, on colorimetric card, coats lemon yellow E district; Displacement platinum is about 100%, and during rhodium 40%-50%, color is shallow lemon yellow, on colorimetric card, coats shallow lemon yellow F district; With the noble metal feed liquid sample that contains the golden organic phase of coming together of replacing with copper powder; Color behind dropping chemical reagent stannous chloride and the ethyl acetate; Compare with colorimetric card, the extent of reaction that the colorimetric card identical with color is corresponding is accredited as the degree of carrying out displacement reaction with copper powder.
2. a kind of evaluation according to claim 1 platinum group metal displacement purified reaction degree methods, the chemical reagent stannous chloride and the volume ratio of ethyl acetate and feed liquid that it is characterized in that dropping in the feed liquid to be checked are feed liquid: stannous chloride: ethyl acetate equals 4:4:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105676243A CN102087218B (en) | 2010-12-01 | 2010-12-01 | Method for identifying extent of replacement purification reaction of platinum group metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105676243A CN102087218B (en) | 2010-12-01 | 2010-12-01 | Method for identifying extent of replacement purification reaction of platinum group metals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087218A CN102087218A (en) | 2011-06-08 |
| CN102087218B true CN102087218B (en) | 2012-07-04 |
Family
ID=44099116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105676243A Active CN102087218B (en) | 2010-12-01 | 2010-12-01 | Method for identifying extent of replacement purification reaction of platinum group metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102087218B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441680B (en) * | 2015-11-18 | 2018-04-10 | 金川集团股份有限公司 | A kind of method of Selective Separation noble metal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8800364A1 (en) * | 1985-10-17 | 1987-06-01 | Moreno Garcia Roberto | Recovery of precious metals from residues with low content |
| CN1086268A (en) * | 1992-10-30 | 1994-05-04 | 中国有色金属工业总公司昆明贵金属研究所 | Rhodium, iridium and gold, platinum, palladium method for separating and concentrating in the solution |
| CN1800421A (en) * | 2005-12-02 | 2006-07-12 | 河南豫光金铅股份有限公司 | Recovering process of valent metal from crude bismuth |
-
2010
- 2010-12-01 CN CN2010105676243A patent/CN102087218B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8800364A1 (en) * | 1985-10-17 | 1987-06-01 | Moreno Garcia Roberto | Recovery of precious metals from residues with low content |
| CN1086268A (en) * | 1992-10-30 | 1994-05-04 | 中国有色金属工业总公司昆明贵金属研究所 | Rhodium, iridium and gold, platinum, palladium method for separating and concentrating in the solution |
| CN1800421A (en) * | 2005-12-02 | 2006-07-12 | 河南豫光金铅股份有限公司 | Recovering process of valent metal from crude bismuth |
Non-Patent Citations (2)
| Title |
|---|
| 吴贤.钯银铜金铂锌六元合金分离提纯工艺.《中国有色金属学报》.1998,第8卷(第2期),374-376. * |
| 郭秋泉.活性铜粉置换金钯铂铑电流滴定铱.《贵金属》.1993,第14卷(第03期),42-46. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102087218A (en) | 2011-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ecco et al. | Influence of polyaniline and cerium oxide nanoparticles on the corrosion protection properties of alkyd coating | |
| CN105758927B (en) | Method for simultaneously measuring iodine, boron, tin and germanium elements in soil | |
| CN103773856B (en) | A kind of super sensitivity detection method and detection kit of mercury ion | |
| CN106290334B (en) | The chemistry in detecting of cobalt and manganese content in cobalt manganese raw material | |
| CN102033118B (en) | Method for testing aging degree of transformer oil | |
| CN102747402A (en) | Discharging oxidation coloring method for titanium or titanium alloy | |
| CN102087218B (en) | Method for identifying extent of replacement purification reaction of platinum group metals | |
| CN103274765A (en) | Co-Zn-Cr-Al composite spinel type blue ceramic pigment and preparation method thereof | |
| CN107542005A (en) | A kind of paint for cork paper bobbin | |
| CN101140271B (en) | Galvanizing plate layered detecting method | |
| CN106082660A (en) | A kind of grape purple glaze and preparation method thereof | |
| CN103487430A (en) | Trivalent aluminum ion detection reagent and method | |
| MX2011007729A (en) | Colored system. | |
| CN102325437A (en) | Glazing process for aluminum housing of electronic product | |
| CN102355805B (en) | Surface glazing technology for aluminium shell of electronic product | |
| CN107014742A (en) | A kind of decay resistance detection method of metal zip fastener | |
| CN105300781A (en) | Preparation method of gold matrix multi-element mixed series standard solution | |
| CN110161016A (en) | A kind of method of phosphorus content in measurement Fe Ni matrix high temperature alloy | |
| CN104894453A (en) | Storage tank of chemical reagent | |
| CN205844171U (en) | A kind of device formed for element evaporation thing | |
| CN105219187A (en) | The baking varnish coating of coating metal surfaces | |
| CN102786819A (en) | Method for preparing coloring composite material by coating inorganic nano film on sericite | |
| CN101319122A (en) | Metal sparkling paint | |
| CN105021684B (en) | The measuring method of hydrogenation efficiency, oxidation efficiency and raffinate concentration during hydrogen dioxide solution production by anthraquinone process | |
| CN110372873B (en) | Red fluorescent cadmium coordination polymer, preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINCHUAN GROUP CO., LTD. Free format text: FORMER NAME: JINCHUAN GROUP CORP., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee after: Jinchuan Group Co., Ltd. Address before: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee before: Jinchuan Group Corp., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110608 Assignee: Lanzhou Jinchuan precious metal materials Limited by Share Ltd Assignor: Jinchuan Group Co., Ltd. Contract record no.: 2014620000027 Denomination of invention: Method for identifying extent of replacement purification reaction of platinum group metals Granted publication date: 20120704 License type: Exclusive License Record date: 20140930 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |