CN104404265A - Gold powder washing purification method - Google Patents
Gold powder washing purification method Download PDFInfo
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- CN104404265A CN104404265A CN201410720588.8A CN201410720588A CN104404265A CN 104404265 A CN104404265 A CN 104404265A CN 201410720588 A CN201410720588 A CN 201410720588A CN 104404265 A CN104404265 A CN 104404265A
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Abstract
The invention discloses a gold powder washing purification method and belongs to the technical field of purification. According to the technical scheme of the method, the method comprises the following steps: washing gold powder with the purity of 99% for multiple times through liquid with different concentrations to remove impurities in the gold powder; finally, transferring into a graphite crucible and melting and casting ingot in an intermediate frequency furnace to obtain finished gold ingot with the purity of more than 99.99%. The method has the advantages that the process is simple and feasible, complicated equipment is not required, the production cycle is short, the intermediate material accumulation time is shortened, and small-scale production is facilitated.
Description
Technical field
The invention belongs to method of purification technical field, be specifically related to a kind of from copper anode mud DNA purity be 99% bronze washing method of purification.
Background technology
Along with the development of gold industry production technology in modern age, existing increasing gold novel process for refining constantly occurs.In the method removing bronze impurity, Gold electrolysis is a kind of effective means, and its shortcoming is that the production cycle is long, and excessive inventory for fund.
Summary of the invention
The object of the invention is for above-mentioned prior art Problems existing in the process of purifying, a kind of simple, with short production cycle bronze washing method of purification is provided.
For achieving the above object, the technical solution adopted in the present invention is: a kind of bronze washing method of purification, is characterized in comprising the following steps:
1) bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, then whipping appts is started, pass into steam in reactor interlayer, be warming up to 90 DEG C, be carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, carry out solid-liquor separation after being cleaned up by salinity soluble in water, isolated bronze is carried out next step washing;
2) by step 1) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 30%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, by be soluble in nitric acid metallic impurity wash clean after, again carry out solid-liquor separation, isolated bronze carried out next step washing;
3) by step 2) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 50%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, after the palladium element washes clean in bronze, carry out solid-liquor separation, isolated bronze is carried out next step washing;
4) by step 3) isolated bronze is placed in reactor, it is 20% alkali lye that the ratio being 3:1 according to mass ratio adds concentration, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5 ~ 6h, carry out solid-liquor separation, isolated bronze is dried, carry out next step washing;
5) by step 4) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 40%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5 ~ 6h, carry out solid-liquor separation, by isolated bronze, carry out next step washing;
6) by step 5) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, and cleaning bronze, treats wash clean post-drying 12 hours, bronze after oven dry being put into crucible utilizes intermediate frequency furnace to melt rear ingot casting, obtains the ingot that purity reaches more than 99.99%.
Compared with prior art, have the following advantages: the first, because the present invention repeatedly washs the bronze containing 99% by the liquid of different concns, wash away impurity contained in bronze, finally proceeding to plumbago crucible utilizes intermediate frequency furnace to melt ingot casting, obtains finished product ingot, containing gold more than 99.99%.The second, simple, do not need complicated equipment, with short production cycle, bronze can be made to be rapidly converted into the finished product ingot of sale, to reduce intermediate material and overstock the time, be applicable to small-scale production ingot.
Embodiment
Embodiment 1
A kind of bronze washing of the present embodiment method of purification, comprises the following steps:
1) bronze is placed in enamel reaction still, the ratio being 3:1 according to mass ratio adds clear water, then whipping appts is started, pass into steam in reactor interlayer, be warming up to 90 DEG C, be carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5h, carry out solid-liquor separation after being cleaned up by salinity soluble in water, isolated bronze is carried out next step washing;
2) by step 1) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 30%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5h, by be soluble in nitric acid metallic impurity wash clean after, again carry out solid-liquor separation, isolated bronze carried out next step washing;
3) by step 2) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 50%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5h, after the palladium element washes clean in bronze, carry out solid-liquor separation, isolated bronze is carried out next step washing;
4) by step 3) isolated bronze is placed in reactor, it is 20% alkali lye that the ratio being 3:1 according to mass ratio adds concentration, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5h, carry out solid-liquor separation, isolated bronze is dried, carry out next step washing;
5) by step 4) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 40%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5h, carry out solid-liquor separation, by isolated bronze, carry out next step washing;
6) by step 5) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, and cleaning bronze, treats wash clean post-drying 12 hours, bronze after oven dry being put into crucible utilizes intermediate frequency furnace to melt rear ingot casting, obtains the ingot that purity reaches more than 99.99%.
Embodiment 2
A kind of bronze washing of the present embodiment method of purification, comprises the following steps:
1) bronze is placed in enamel reaction still, the ratio being 3:1 according to mass ratio adds clear water, then whipping appts is started, pass into steam in reactor interlayer, be warming up to 90 DEG C, be carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 6h, carry out solid-liquor separation after being cleaned up by salinity soluble in water, isolated bronze is carried out next step washing;
2) by step 1) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 30%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 6h, by be soluble in nitric acid metallic impurity wash clean after, again carry out solid-liquor separation, isolated bronze carried out next step washing;
3) by step 2) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 50%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 6h, after the palladium element washes clean in bronze, carry out solid-liquor separation, isolated bronze is carried out next step washing;
4) by step 3) isolated bronze is placed in reactor, it is 20% alkali lye that the ratio being 3:1 according to mass ratio adds concentration, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 6h, carry out solid-liquor separation, isolated bronze is dried, carry out next step washing;
5) by step 4) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 40%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 6h, carry out solid-liquor separation, by isolated bronze, carry out next step washing;
6) by step 5) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, and cleaning bronze, treats wash clean post-drying 12 hours, bronze after oven dry being put into crucible utilizes intermediate frequency furnace to melt rear ingot casting, obtains the ingot that purity reaches more than 99.99%.
Embodiment 3
A kind of bronze washing of the present embodiment method of purification, comprises the following steps:
1) bronze is placed in enamel reaction still, the ratio being 3:1 according to mass ratio adds clear water, then whipping appts is started, pass into steam in reactor interlayer, be warming up to 90 DEG C, be carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5.5h, carry out solid-liquor separation after being cleaned up by salinity soluble in water, isolated bronze is carried out next step washing;
2) by step 1) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 30%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5.5h, by be soluble in nitric acid metallic impurity wash clean after, again carry out solid-liquor separation, isolated bronze carried out next step washing;
3) by step 2) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 50%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5.5h, after the palladium element washes clean in bronze, carry out solid-liquor separation, isolated bronze is carried out next step washing;
4) by step 3) isolated bronze is placed in reactor, it is 20% alkali lye that the ratio being 3:1 according to mass ratio adds concentration, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5.5h, carry out solid-liquor separation, isolated bronze is dried, carry out next step washing;
5) by step 4) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 40%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5.5h, carry out solid-liquor separation, by isolated bronze, carry out next step washing;
6) by step 5) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, and cleaning bronze, treats wash clean post-drying 12 hours, bronze after oven dry being put into crucible utilizes intermediate frequency furnace to melt rear ingot casting, obtains the ingot that purity reaches more than 99.99%.
Claims (1)
1. a bronze washing method of purification, is characterized in that comprising the following steps:
1) bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, then whipping appts is started, pass into steam in reactor interlayer, be warming up to 90 DEG C, be carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, carry out solid-liquor separation after being cleaned up by salinity soluble in water, isolated bronze is carried out next step washing;
2) by step 1) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 30%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, by be soluble in nitric acid metallic impurity wash clean after, again carry out solid-liquor separation, isolated bronze carried out next step washing;
3) by step 2) isolated bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 50%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, washing time is 5 ~ 6h, after the palladium element washes clean in bronze, carry out solid-liquor separation, isolated bronze is carried out next step washing;
4) by step 3) isolated bronze is placed in reactor, it is 20% alkali lye that the ratio being 3:1 according to mass ratio adds concentration, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5 ~ 6h, carry out solid-liquor separation, isolated bronze is dried, carry out next step washing;
5) by step 4) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds the nitric acid that concentration is 40%, then whipping appts is started, passing into steam in reactor interlayer, be warming up to 90 DEG C, is carry out washing bronze under the condition of 90 DEG C in temperature, after washing 5 ~ 6h, carry out solid-liquor separation, by isolated bronze, carry out next step washing;
6) by step 5) obtained bronze is placed in reactor, the ratio being 3:1 according to mass ratio adds clear water, and cleaning bronze, treats wash clean post-drying 12 hours, bronze after oven dry being put into crucible utilizes intermediate frequency furnace to melt rear ingot casting, obtains the ingot that purity reaches more than 99.99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720588.8A CN104404265A (en) | 2014-12-02 | 2014-12-02 | Gold powder washing purification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410720588.8A CN104404265A (en) | 2014-12-02 | 2014-12-02 | Gold powder washing purification method |
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| CN104404265A true CN104404265A (en) | 2015-03-11 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362532A (en) * | 2001-01-08 | 2002-08-07 | 冶金工业部长春黄金研究院 | Amminochloride process of purifying gold |
| CN101024864A (en) * | 2007-02-14 | 2007-08-29 | 苏州天地环境科技有限公司 | Method for recovering gold and copper from gold-plated printed circuit board waste material |
| CN101037285A (en) * | 2007-02-09 | 2007-09-19 | 苏州市环境工程有限责任公司 | Integrative recovering and reusing of heavy metals in wire board plating wastewater treatment sludge |
| CN101328541A (en) * | 2008-07-27 | 2008-12-24 | 郴州市金贵银业股份有限公司 | Gold wet purification process |
| 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 |
| CN103074501A (en) * | 2013-02-22 | 2013-05-01 | 昆山鸿福泰环保科技有限公司 | Gold net recovery process |
| CN103233132A (en) * | 2013-04-22 | 2013-08-07 | 金川集团股份有限公司 | Method for removing impurities from gold powder |
-
2014
- 2014-12-02 CN CN201410720588.8A patent/CN104404265A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362532A (en) * | 2001-01-08 | 2002-08-07 | 冶金工业部长春黄金研究院 | Amminochloride process of purifying gold |
| CN101037285A (en) * | 2007-02-09 | 2007-09-19 | 苏州市环境工程有限责任公司 | Integrative recovering and reusing of heavy metals in wire board plating wastewater treatment sludge |
| CN101024864A (en) * | 2007-02-14 | 2007-08-29 | 苏州天地环境科技有限公司 | Method for recovering gold and copper from gold-plated printed circuit board waste material |
| CN101328541A (en) * | 2008-07-27 | 2008-12-24 | 郴州市金贵银业股份有限公司 | Gold wet purification process |
| 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 |
| CN103074501A (en) * | 2013-02-22 | 2013-05-01 | 昆山鸿福泰环保科技有限公司 | Gold net recovery process |
| CN103233132A (en) * | 2013-04-22 | 2013-08-07 | 金川集团股份有限公司 | Method for removing impurities from gold powder |
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Application publication date: 20150311 |