CN109881018A - A method of recycling arsenic iron calcium from arsenic iron calcium slag - Google Patents
A method of recycling arsenic iron calcium from arsenic iron calcium slag Download PDFInfo
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- CN109881018A CN109881018A CN201910185593.6A CN201910185593A CN109881018A CN 109881018 A CN109881018 A CN 109881018A CN 201910185593 A CN201910185593 A CN 201910185593A CN 109881018 A CN109881018 A CN 109881018A
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- Prior art keywords
- arsenic
- iron
- calcium
- vacuum
- iron calcium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention provides a kind of method that arsenic iron calcium is recycled from arsenic iron calcium slag, arsenic iron calcium slag is placed in reactor first, it is sufficiently stirred after carbon dust is added, obtain the mixture of the two, mixture is pressed into block in high pressure briquetting machine again, is subsequently placed in progress vacuum reduction reaction in vacuum high temperature furnace, and distill and obtain metallic arsenic, finally magnet absorption is carried out to obtained solid product to separate iron powder and calcium oxide, then iron powder is washed, dry after obtain metallic iron.Wherein the vacuum degree of vacuum drying oven is 10‑3~10‑ 2mmHg.Compared with the existing technology, the present invention not only increases the level of resources utilization, reduces production cost, and reduce environmental pollution, meet the requirement of green production by recycling to carry out calcium, iron, the arsenic in arsenic iron calcium slag.
Description
Technical field
The present invention relates to metal smelt fields, and in particular to a method of arsenic iron calcium is recycled from arsenic iron calcium slag.
Background technique
Arsenic iron calcium is a kind of arsenic complex, and arseniosiderite is monoclinic system, and color is golden yellow, yellowish-brown, reddish brown, brown black arrives
Black, semimetallic lustre or silky luster, it is slightly lower in threadiness or hardness, the elements such as arsenic, iron, calcium are contained in arsenic iron calcium,
During metal smelt, if will directly abandon arsenic iron calcium slag, not only waste of resource, increases labour cost, and can pollute ring
Border is not able to satisfy the requirement of green production, therefore, it is necessary to be recycled to arsenic iron calcium slag, improves the level of resources utilization, subtracts
Few environmental pollution.
Summary of the invention
To solve the above problems, the present invention provides a kind of method for recycling arsenic iron calcium from arsenic iron calcium slag, specific steps are such as
Under:
(1) arsenic iron calcium slag is placed in reactor, is sufficiently stirred after carbon dust is added, obtain the mixture of the two；
(2) mixture that step (1) obtains is pressed into block in high pressure briquetting machine, is subsequently placed in vacuum high temperature furnace and carries out vacuum
Reduction reaction, and distill and obtain metallic arsenic；
(3) solid product obtained to step (2) carries out magnet absorption and separates to iron powder and calcium oxide, then to iron powder into
Metallic iron is obtained after row washing, drying.
The vacuum degree of vacuum drying oven in the step (2) is 10-3~10-2mmHg。
Compared with the existing technology, the invention has the benefit that by being recycled to carry out calcium, iron, the arsenic in arsenic iron calcium slag
It utilizes, not only increases the level of resources utilization, reduce production cost, and reduce environmental pollution, meet green production
Requirement.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Embodiment: the present invention provides a kind of method that arsenic iron calcium is recycled from arsenic iron calcium slag, the specific steps are as follows:
(1) arsenic iron calcium slag is placed in reactor, is sufficiently stirred after carbon dust is added, obtain the mixture of the two；
(2) mixture that step (1) obtains is pressed into block in high pressure briquetting machine, is subsequently placed in vacuum high temperature furnace and carries out vacuum
Reduction reaction, and distill and obtain metallic arsenic；
(3) solid product obtained to step (2) carries out magnet absorption and separates to iron powder and calcium oxide, then to iron powder into
Metallic iron is obtained after row washing, drying.
The vacuum degree of vacuum drying oven in the step (2) is 10-3~10-2mmHg。
The present invention by arsenic iron calcium slag carry out calcium, iron, arsenic recycle, not only increase the level of resources utilization,
Production cost is reduced, and reduces environmental pollution, meets the requirement of green production.
Claims (2)
1. a kind of method for recycling arsenic iron calcium from arsenic iron calcium slag, which is characterized in that specific step is as follows:
(1) arsenic iron calcium slag is placed in reactor, is sufficiently stirred after carbon dust is added, obtain the mixture of the two；
(2) mixture that step (1) obtains is pressed into block in high pressure briquetting machine, is subsequently placed in vacuum high temperature furnace and carries out vacuum
Reduction reaction, and distill and obtain metallic arsenic；
(3) solid product obtained to step (2) carries out magnet absorption and separates to iron powder and calcium oxide, then to iron powder into
Metallic iron is obtained after row washing, drying.
2. the method according to claim 1 for recycling arsenic iron calcium from arsenic iron calcium slag, it is characterised in that: the step (2)
In vacuum drying oven vacuum degree be 10-3~10-2mmHg。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185593.6A CN109881018A (en) | 2019-03-12 | 2019-03-12 | A method of recycling arsenic iron calcium from arsenic iron calcium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185593.6A CN109881018A (en) | 2019-03-12 | 2019-03-12 | A method of recycling arsenic iron calcium from arsenic iron calcium slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109881018A true CN109881018A (en) | 2019-06-14 |
Family
ID=66931911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910185593.6A Pending CN109881018A (en) | 2019-03-12 | 2019-03-12 | A method of recycling arsenic iron calcium from arsenic iron calcium slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109881018A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094095A (en) * | 2011-01-29 | 2011-06-15 | 沈阳博联特熔融还原科技有限公司 | Method for quickly separating and directly reducing iron slag |
| CN103710532A (en) * | 2014-01-22 | 2014-04-09 | 安徽工业大学 | Method for performing microwave arsenic removal on high-arsenic iron ore |
| CN106636678A (en) * | 2016-11-14 | 2017-05-10 | 中南大学 | Method for preparing arsenic by direct reduction and roasting of arsenic-containing material |
| CN106756112A (en) * | 2016-12-29 | 2017-05-31 | 湖南工业大学 | A kind of method that heavy arsenic slag reduction sulphur fixing roast is directly produced metallic arsenic |
| CN106893864A (en) * | 2017-03-24 | 2017-06-27 | 中南大学 | A kind of method that arsenic is reclaimed in the mud from black copper |
| CN107338454A (en) * | 2017-07-19 | 2017-11-10 | 中南大学 | A kind of method that copper and arsenic are reclaimed from white metal |
-
2019
- 2019-03-12 CN CN201910185593.6A patent/CN109881018A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094095A (en) * | 2011-01-29 | 2011-06-15 | 沈阳博联特熔融还原科技有限公司 | Method for quickly separating and directly reducing iron slag |
| CN103710532A (en) * | 2014-01-22 | 2014-04-09 | 安徽工业大学 | Method for performing microwave arsenic removal on high-arsenic iron ore |
| CN106636678A (en) * | 2016-11-14 | 2017-05-10 | 中南大学 | Method for preparing arsenic by direct reduction and roasting of arsenic-containing material |
| CN106756112A (en) * | 2016-12-29 | 2017-05-31 | 湖南工业大学 | A kind of method that heavy arsenic slag reduction sulphur fixing roast is directly produced metallic arsenic |
| CN106893864A (en) * | 2017-03-24 | 2017-06-27 | 中南大学 | A kind of method that arsenic is reclaimed in the mud from black copper |
| CN107338454A (en) * | 2017-07-19 | 2017-11-10 | 中南大学 | A kind of method that copper and arsenic are reclaimed from white metal |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190614 |
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| RJ01 | Rejection of invention patent application after publication |