CN1078115C - One-step manufacture method for industrial high-purity zinc powder - Google Patents
One-step manufacture method for industrial high-purity zinc powder Download PDFInfo
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- CN1078115C CN1078115C CN99117397A CN99117397A CN1078115C CN 1078115 C CN1078115 C CN 1078115C CN 99117397 A CN99117397 A CN 99117397A CN 99117397 A CN99117397 A CN 99117397A CN 1078115 C CN1078115 C CN 1078115C
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Abstract
The present invention belongs to the technical field of non-ferrous metallurgy chemical industry, which particularly relates to a method of directly making high pure zinc powder by using crude zinc. The method of directly making high pure zinc powder by using crude zinc comprises: crude zinc liquid is fed into a cadmium tower and then a lead tower so as to obtain high pure zinc vapor, the high pure zinc vapor is directly cooled to obtain high pure industrial zinc powder, high cadmium-zinc is discharged from the top of the cadmium tower, and lead-zinc liquid is discharged from the bottom of the tower; the lead-zinc liquid is fed into the lead tower, high lead-zinc is discharged from the bottom of the tower, the high pure zinc vapor is discharged from the top of the tower, and the high pure zinc vapor is fed into a condenser to be cooled so as to obtain the high pure industrial zinc powder. The positions of the lead tower and the cadmium tower are interchanged in the technological process, so that the energy consumption of the re-melting and re-evaporation process in the original technological process is saved, and the metal loss is saved when zinc is re-melt and re-evaporated.
Description
The invention belongs to nonferrous metallurgy chemical engineering industry technical field, especially a kind of manufacture method of directly making high-purity zinc powder with crude zinc.
Industrial high-purity zinc powder is a kind of important metallurgy a---industrial chemicals, is widely used in the displacement operation of zinc metallurgy and zinc salt production process, as sodium hydrosulfite, and the raw material of sodium formaldehyde sulfoxylate and relevant organic products etc.At present, the method for acquisition industrial high-purity zinc powder has crucible method, rectification method, spray method zinc powder method etc.Rectification method is generally more excellent, but this method will be with the high-purity smart spelter of 1 grade or 0 grade chemical purity as raw material.
Traditional rectification method manufacturing process of industrial high-purity zinc powder is actually two step method.As shown in Figure 1, it is initial from crude zinc liquid, with 4 grades, 5 grades crude zincs or etc. outer zinc make raw material, through plumbous tower, the rectifying of cadmium tower of distillation system, the cooling ingot bar makes the high-purity smart spelter of 1 grade or 0 grade, this be technologic one to go on foot; With after the smart spelter fusing, enter the plumbous tower evaporation of rectifying gasification again, cool off high-purity technical grade zinc powder of back powdering at last, this was second step.Above-mentioned known from the crude zinc piece to the high-purity zinc powder manufacture process: to the fusion of smart spelter, step repeatability such as evaporation gasification and cooling ingot bar are many in plumbous tower, cause metal loss, energy waste, the labour increases, and increased production cost, discharging serious three wastes contaminated environment.
At the weak point that above-mentioned prior art exists, the invention provides a kind of one-step manufacture method of industrial high-purity zinc powder, it can shorten preparation technology, economizes on resources and the energy, effectively reduces the loss, energy-saving and cost-reducing of crude zinc raw material.
Purpose of the present invention reaches by following technical measures: this method is made raw material with crude zinc, plumbous tower, the rectifying of cadmium tower, evaporation gasification through distillation system, cool off the high-purity industrial zinc powder of back powdering at last, it is characterized in that: the laggard plumbous tower of the advanced cadmium tower of crude zinc liquid, obtain the high-purity Zn steam, directly cool off high-purity industrial zinc powder.
Above-mentioned cadmium Tata ejects high cadmium zinc, goes out leaded zinc liquid at the bottom of the tower; Plumbous zinc liquid advances plumbous tower, goes out high plumbous zinc at the bottom of the tower, and cat head goes out high purity zinc steam, and zinc fume advances condenser, cool off the high-purity technical zinc powder.
The present invention compared with prior art has following advantage or good effect:
1, optimizes production procedure, when obtaining industrial high-purity zinc powder, saved the labour, reduced the discharging of a large amount of greenhouse gases.Because plumbous tower and cadmium tower exchange the position on stream mutually, thereby can save the energy resource consumption of fusion again in the former flow process, repeated evaporation process and zinc at remelting, metal loss when heavily steaming.
2, save the loss of a large amount of energy and minimizing zinc raw material, the finished product chemical element index of acquisition reaches the quality of 0 grade of 1 grade of spelter.Traditional handicraft is two step system zinc methods.It is the first step that crude zinc rectifying makes smart spelter, and the metal yield is about 95%, and making high-purity zinc powder with smart spelter was second step, and its metal yield is about 93%, and two steps were multiplied each other the metallic zinc yield only about 88.35%.The coal consumption of one ton of metallic zinc of every production: 1.2 tons of the first steps, in 0.9～1.1 ton of second step, the coal consumption that two steps added up to one ton of metallic zinc is 2.1～2.3 tons.And the technology that proposes according to the present invention, the metallic zinc yield is 91～93%, the coal consumption of one ton of metallic zinc of every production is 1.2～2.3 tons.Two compare, and technology of the present invention improves 3～5% than traditional handicraft metallic zinc yield, and coal consumption reduces 0.9～1 ton, thereby have reduced manufacturing cost.
Fig. 1 is that traditional rectification method is made the high-purity zinc powder process chart.
Fig. 2 is the one-step manufacture method process chart according to the industrial high-purity zinc powder of the present invention's proposition.
As shown in Figure 2, from crude zinc liquid, advanced cadmium tower middle part, cat head goes out high cadmium zinc, goes out leaded zinc liquid at the bottom of the tower; Leaded zinc liquid advances plumbous tower, goes out high plumbous zinc at the bottom of the tower, i.e. B level zinc, and cat head goes out high purity zinc steam; Zinc fume advances condenser, cool off the high-purity technical zinc powder.Each unit tower technic index and control and traditional rectification process are identical in this technology.
Adopt its total zinc purity of finished product that this technology makes up to 99%.
Embodiment: the cadmium tower of forming by one 33 990 * 457 specification tower trays, the plumbous tower that the tower tray of two 55 600 * 300 specifications is formed, be combined into the device of the laggard plumbous tower of the advanced cadmium tower of above-mentioned crude zinc, add supporting cooler, drop into the crude zinc composition: lead 0.14%, iron 0.3%, cadmium 0.018% (being equivalent to 4～5 grades of zinc), the finished product zinc powder composition that obtains is 0.0003%, iron 0.003%, cadmium 0.0005% (being equivalent to 0 grade of zinc), the yield 92.24% of metallic zinc, 1.26 tons of coal consumptions.
Claims (2)
1, the one-step manufacture method of industrial high-purity zinc powder, make raw material with crude zinc, plumbous tower, the rectifying of cadmium tower, evaporation gasification through distillation system, cool off the high-purity industrial zinc powder of back powdering at last, it is characterized in that: the laggard plumbous tower of the advanced cadmium tower of crude zinc liquid, obtain the high-purity Zn steam, directly cool off high-purity industrial zinc powder.
2, manufacture method according to claim 1 is characterized in that: the cadmium Tata ejects high cadmium zinc, goes out leaded zinc liquid at the bottom of the tower; Leaded zinc liquid advances plumbous tower, goes out high plumbous zinc at the bottom of the tower, and cat head goes out high purity zinc steam, and zinc fume advances condenser, cool off the high-purity technical zinc powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99117397A CN1078115C (en) | 1999-11-26 | 1999-11-26 | One-step manufacture method for industrial high-purity zinc powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99117397A CN1078115C (en) | 1999-11-26 | 1999-11-26 | One-step manufacture method for industrial high-purity zinc powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1260256A CN1260256A (en) | 2000-07-19 |
| CN1078115C true CN1078115C (en) | 2002-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99117397A Expired - Fee Related CN1078115C (en) | 1999-11-26 | 1999-11-26 | One-step manufacture method for industrial high-purity zinc powder |
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| CN (1) | CN1078115C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100510194C (en) * | 2005-12-08 | 2009-07-08 | 云南冶金集团总公司技术中心 | Preparation method of high-purity zinc |
| CN100420527C (en) * | 2005-12-28 | 2008-09-24 | 北京北矿锌业有限责任公司 | Production equipment of high-purity superfine active zinc powder and method for preparing same |
| CN101148707B (en) * | 2006-09-20 | 2010-12-08 | 徐建成 | Zinc rectification method and zinc rectification furnace |
| CN102029398B (en) * | 2009-09-28 | 2012-10-03 | 江苏冶建锌业有限公司 | Preparation method of high-purity zinc powder |
| CN102534245A (en) * | 2011-12-02 | 2012-07-04 | 马龙仁和锌业有限公司 | Method for manufacturing high-quality zinc powder |
| CN103924086B (en) * | 2014-04-02 | 2016-05-18 | 上海交通大学 | The separation and recovery method of the hybrid metal enrich body after electron wastes cracking and sorting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020542B1 (en) * | 1969-11-21 | 1975-07-16 | ||
| JPS54107422A (en) * | 1978-02-10 | 1979-08-23 | Nippon Mining Co Ltd | Purification of distilied zinc |
| CN85201473U (en) * | 1985-05-21 | 1986-08-27 | 中国有色金属工业总公司葫芦岛锌厂 | Ordinary and superfine zinc powder producing device |
| JPH06108175A (en) * | 1992-09-30 | 1994-04-19 | Aichi Steel Works Ltd | Refining method for crude zinc and its device |
| CN2276846Y (en) * | 1996-08-15 | 1998-03-25 | 昆明理工大学 | Equipment for producing superfine zinc powder by vacuum process |
-
1999
- 1999-11-26 CN CN99117397A patent/CN1078115C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020542B1 (en) * | 1969-11-21 | 1975-07-16 | ||
| JPS54107422A (en) * | 1978-02-10 | 1979-08-23 | Nippon Mining Co Ltd | Purification of distilied zinc |
| CN85201473U (en) * | 1985-05-21 | 1986-08-27 | 中国有色金属工业总公司葫芦岛锌厂 | Ordinary and superfine zinc powder producing device |
| JPH06108175A (en) * | 1992-09-30 | 1994-04-19 | Aichi Steel Works Ltd | Refining method for crude zinc and its device |
| CN2276846Y (en) * | 1996-08-15 | 1998-03-25 | 昆明理工大学 | Equipment for producing superfine zinc powder by vacuum process |
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| CN1260256A (en) | 2000-07-19 |
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