CN106086429A - A kind of Combined Treatment chromium slag and the method for copper ashes - Google Patents
A kind of Combined Treatment chromium slag and the method for copper ashes Download PDFInfo
- Publication number
- CN106086429A CN106086429A CN201610404176.2A CN201610404176A CN106086429A CN 106086429 A CN106086429 A CN 106086429A CN 201610404176 A CN201610404176 A CN 201610404176A CN 106086429 A CN106086429 A CN 106086429A
- Authority
- CN
- China
- Prior art keywords
- copper ashes
- percentage
- weight
- pelletizing
- slag
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a kind of Combined Treatment chromium slag and the method for copper ashes, comprises the steps: A, non-calcium chromium slags, copper ashes, reduction coal, cullet, limestone is dried at 100～120 DEG C, then is finely ground to below 200 mesh mixing acquisition compound；B, described compound and starch solution are mixed pelletizing, it is thus achieved that pelletizing, and described pelletizing is dried acquisition dry bulb group；C, described dry bulb group is put into electric furnace melt, refine after melting down, it is thus achieved that containing ferrochrome silicon and removing toxic substances slag.The Combined Treatment chromium slag of present invention offer and the method for copper ashes, by Cr in non-calcium chromium slags6+Thoroughly removing toxic substances, it is achieved non-calcium chromium slags and the comprehensive renewable resources of copper ashes.
Description
Technical field
The invention belongs to field of metallurgy, be specifically related to a kind of Combined Treatment chromium slag and the method for copper ashes.
Background technology
Precious Metals Resources is rare, and expensive, increasingly by the most attention of countries in the world, noble metal industrial waste is
These industrial wastes are effectively processed and profit by expensive heavy secondary resource in the Precious Metals Resources that the world today is the most in short supply
With, there is considerable economic worth.
The slag charge that non-calcium chromium slags produces when being and produce crome metal or chromic salts without calcium technique, non-calcium chromium slags is that crome metal produced
Waste residue in journey, chromium content is 3～10%, iron content 20～about 40%.Because it contains water solublity and acid-soluble Cr6+(sexavalence
Chromium) there is severe toxicity, arbitrarily stack and environment can be produced severe contamination.Noxious substance therein may cause skin allergy, skin
With mucosal ulcer, erosive rhinitis and perforation of nasal septum, a large amount of absorptions not only damage oral cavity, esophagus and the intestines and stomach, have allowed part warp
Intestinal absorption, in blood, causes injury of kidney.And chromium therein is not recycled with iron resource and wastes.
The copper yield of China has occupied the first in the world, in the production process of copper, creates substantial amounts of copper ashes, copper ashes heap
There is slag field, not only land occupation but also pollute environment, the huge waste of resource especially.Containing substantial amounts of available money in copper ashes
Source, in copper ashes, silicone content is 20～40%, iron content 30～50%.Realizing the recycling of copper ashes, being developed to realization has
Valence group divides the isolation technics of renewable resources, has important practical significance national economy and development in science and technology.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of Combined Treatment chromium slag and the method for copper ashes, has non-calcium chromium
Cr in slag6+The thoroughly effect of removing toxic substances, it is achieved that non-calcium chromium slags and the comprehensive renewable resources of copper ashes.
The present invention provides a kind of Combined Treatment chromium slag and the method for copper ashes, comprises the steps:
A, non-calcium chromium slags, copper ashes, reduction coal, cullet, limestone are dried at 100～120 DEG C, then are finely ground to
Mixing below 200 mesh obtains compound, mass ratio=100 of described non-calcium chromium slags, copper ashes, reduction coal, cullet and limestone:
20～30:10～30:10～25:10～20；
B, described compound and starch solution are mixed pelletizing, it is thus achieved that pelletizing, and described pelletizing are dried acquisition dry bulb group,
Described compound and the mass ratio=100:4-6 of starch solution；
C, described dry bulb group is put into electric furnace melt, refine after melting down, it is thus achieved that containing ferrochrome silicon and removing toxic substances slag.
As preferred scheme, the percentage by weight >=6wt% of Cr in described non-calcium chromium slags, Fe percentage by weight >=
25wt%.
As preferred scheme, in described copper ashes, the percentage by weight of Fe is 35～50wt%, SiO2Percentage by weight
>=30wt%.
As preferred scheme, the percentage by weight >=80wt% of C in described reduction coal, the percentage by weight of S≤
0.8wt%.
As preferred scheme, SiO in described cullet2Percentage by weight >=80wt%.
As preferred scheme, the percentage by weight >=50wt% of CaO in described limestone.
Concrete, starch and the mass ratio=5:100 of water in described starch solution.
A diameter of 8～16mm of pelletizing described in described step B.
The baking temperature of pelletizing described in described step B is 100～120 DEG C.
In described step C during refine a length of 20～40min.
The present invention provide Combined Treatment chromium slag and the method for copper ashes, utilize non-calcium chromium slags, copper ashes, reduction coal, cullet,
Limestone and starch solution are raw material, and final acquisition contains ferrochrome silicon and removing toxic substances slag, by Cr in non-calcium chromium slags6+Thoroughly removing toxic substances, it is achieved
Non-calcium chromium slags and the comprehensive renewable resources of copper ashes.
In the present invention, mm represents millimeter, and min representative minute, wt% represents percentage by weight.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is described in more details, in order to energy
The advantage being enough more fully understood that the solution of the present invention and various aspects thereof.But, specific embodiments described below and enforcement
Example is only descriptive purpose rather than limitation of the present invention.
The present invention provides a kind of Combined Treatment chromium slag and the method for copper ashes, as it is shown in figure 1, comprise the steps:
A, non-calcium chromium slags, copper ashes, reduction coal, cullet, limestone are dried at 100～120 DEG C, then are finely ground to
Mixing below 200 mesh obtains compound, mass ratio=100 of described non-calcium chromium slags, copper ashes, reduction coal, cullet and limestone:
20～30:10～30:10～25:10～20；
B, compound and starch solution are mixed pelletizing, it is thus achieved that pelletizing, a diameter of the 8 of pelletizing～16mm, and pelletizing is done
Dry acquisition dry bulb group, baking temperature is 100～120 DEG C, the mass ratio=100:4-6 of compound and starch solution；
C, dry bulb group is put into electric furnace melt, refine 20～40min after melting down, it is thus achieved that containing ferrochrome silicon and removing toxic substances
Slag.
As preferred scheme, the percentage by weight >=6wt% of Cr in described non-calcium chromium slags, Fe percentage by weight >=
25wt%.
As preferred scheme, in described copper ashes, the percentage by weight of Fe is 35～50wt%, SiO2Percentage by weight
>=30wt%.
As preferred scheme, the percentage by weight >=80wt% of C in described reduction coal, the percentage by weight of S≤
0.8wt%.
As preferred scheme, SiO in described cullet2Percentage by weight >=80wt%.
As preferred scheme, the percentage by weight >=50wt% of CaO in described limestone.
Concrete, starch and the mass ratio=5:100 of water in described starch solution.
The present invention provide Combined Treatment chromium slag and the method for copper ashes, utilize non-calcium chromium slags, copper ashes, reduction coal, cullet,
Limestone and starch solution are raw material, and final acquisition contains ferrochrome silicon and removing toxic substances slag, by Cr in non-calcium chromium slags6+Thoroughly removing toxic substances, it is achieved
Non-calcium chromium slags and the comprehensive renewable resources of copper ashes.
Embodiment
Embodiment 1
Step one, by 100 parts of non-calcium chromium slags (Cr:6.2%, Fe:25.5%), 22 parts of copper ashes (Fe:41.2%, SiO2:
31.5%), 15 parts of reduction coal (C:80.8%, S:0.6%), 10 parts of cullet (SiO2: 82.3%), 10 parts of limestone (CaO:
51.3%) it is dried at 100 DEG C, then is finely ground to below 200 mesh and mixes acquisition compound.
Step 2,4% starch solution (starch: water=5:100) of step one gained compound and mixture quality is mixed
Even pelletizing, pelletizing a diameter of 8～16mm, and made pelletizing is dried acquisition dry bulb group at 105 DEG C.
Step 3, step 3 gained dry bulb group is put into electric furnace melt, refine 30min after melting down, it is thus achieved that containing chromium
Ferrosilicon and removing toxic substances slag.
Embodiment 2
Step one, by 100 parts of non-calcium chromium slags (Cr:7.1%, Fe:26.7%), 25 parts of copper ashes (Fe:42.3%, SiO2:
32.6%), 10 parts of reduction coal (C:82.3%, S:0.5%), 20 parts of cullet (SiO2: 83.2%), 20 parts of limestone (CaO:
52.3%) it is dried at 105 DEG C, then is finely ground to below 200 mesh and mixes acquisition compound.
Step 2,6% starch solution (starch: water=5:100) of step one gained compound and mixture quality is mixed
Even pelletizing, pelletizing a diameter of 10～16mm, and made pelletizing is dried acquisition dry bulb group at 110 DEG C.
Step 3, step 3 gained dry bulb group is put into electric furnace melt, refine 20min after melting down, it is thus achieved that containing chromium
Ferrosilicon and removing toxic substances slag.
Embodiment 3
Step one, by 100 parts of non-calcium chromium slags (Cr:6.9%, Fe:28.5%), 30 parts of copper ashes (Fe:41.3%, SiO2:
33.2%), 30 parts of reduction coal (C:82.1%, S:0.6%), 25 parts of cullet (SiO2: 82.2%), 18 parts of limestone (CaO:
53.3%) it is dried at 120 DEG C, then is finely ground to below 200 mesh and mixes acquisition compound.
Step 2,5% starch solution (starch: water=5:100) of step one gained compound and mixture quality is mixed
Even pelletizing, pelletizing a diameter of 10～14mm, and made pelletizing is dried acquisition dry bulb group at 120 DEG C.
Step 3, step 3 gained dry bulb group is put into electric furnace melt, refine 40min after melting down, it is thus achieved that containing chromium
Ferrosilicon and removing toxic substances slag.
It should be noted that each embodiment above by reference to described by accompanying drawing is only in order to illustrate rather than restriction originally
The scope of invention, it will be understood by those within the art that, the most right
Amendment that the present invention is carried out or equivalent, all should contain within the scope of the present invention.Additionally, indication unless the context
Outward, the word occurred in the singular includes plural form, and vice versa.It addition, unless stated otherwise, then any embodiment
All or part of can use in conjunction with all or part of of any other embodiments.
Claims (10)
1. Combined Treatment chromium slag and a method for copper ashes, comprise the steps:
A, non-calcium chromium slags, copper ashes, reduction coal, cullet, limestone are dried at 100～120 DEG C, then are finely ground to 200 mesh
Hereinafter mixing obtains compound, the mass ratio=100:20 of described non-calcium chromium slags, copper ashes, reduction coal, cullet and limestone～
30:10～30:10～25:10～20；
B, described compound and starch solution are mixed pelletizing, it is thus achieved that pelletizing, and described pelletizing is dried acquisition dry bulb group, described
Compound and the mass ratio=100:4-6 of starch solution；
C, described dry bulb group is put into electric furnace melt, refine after melting down, it is thus achieved that containing ferrochrome silicon and removing toxic substances slag.
Method the most according to claim 1, it is characterised in that the percentage by weight >=6wt% of Cr in described non-calcium chromium slags,
Fe percentage by weight >=25wt%.
Method the most according to claim 1, it is characterised in that in described copper ashes the percentage by weight of Fe be 35～
50wt%, SiO2Percentage by weight >=30wt%.
Method the most according to claim 1, it is characterised in that the percentage by weight >=80wt% of C, S in described reduction coal
Percentage by weight≤0.8wt%.
Method the most according to claim 1, it is characterised in that SiO in described cullet2Percentage by weight >=80wt%.
Method the most according to claim 1, it is characterised in that the percentage by weight >=50wt% of CaO in described limestone.
Method the most according to claim 1, it is characterised in that starch and mass ratio=5 of water in described starch solution:
100。
Method the most according to claim 1, it is characterised in that a diameter of 8～16mm of pelletizing described in described step B.
Method the most according to claim 1, it is characterised in that the baking temperature of pelletizing described in described step B be 100～
120℃。
Method the most according to claim 1, it is characterised in that in described step C during refine a length of 20～40min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404176.2A CN106086429A (en) | 2016-06-08 | 2016-06-08 | A kind of Combined Treatment chromium slag and the method for copper ashes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404176.2A CN106086429A (en) | 2016-06-08 | 2016-06-08 | A kind of Combined Treatment chromium slag and the method for copper ashes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106086429A true CN106086429A (en) | 2016-11-09 |
Family
ID=57228415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610404176.2A Pending CN106086429A (en) | 2016-06-08 | 2016-06-08 | A kind of Combined Treatment chromium slag and the method for copper ashes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106086429A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059370A (en) * | 1990-08-31 | 1992-03-11 | 黄石市无机盐厂 | Chromium residue detoxifying, smelting contain the method for chromium pig iron |
| CN101775492A (en) * | 2010-02-26 | 2010-07-14 | 上海海事大学 | Method for producing ferrum-silicon-aluminium alloy by aluminium ashes and copper slag |
| CN101875987A (en) * | 2009-12-02 | 2010-11-03 | 吐鲁番沈宏金属工业有限责任公司 | Method for smelting low chromium pig iron by utilizing chromium slag |
| CN101906500A (en) * | 2010-02-05 | 2010-12-08 | 甘肃锦世化工有限责任公司 | Method for directly producing chrome-base alloy steel by comprehensively using calcium-free chrome slag |
| CN104404260A (en) * | 2014-11-24 | 2015-03-11 | 北京神雾环境能源科技集团股份有限公司 | Method for separating valuable metals from copper slag |
| CN105018722A (en) * | 2015-08-12 | 2015-11-04 | 唐竹胜 | Method for separating and reducing iron powder from refractory mineral, complex ore and iron-containing waste materials |
-
2016
- 2016-06-08 CN CN201610404176.2A patent/CN106086429A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059370A (en) * | 1990-08-31 | 1992-03-11 | 黄石市无机盐厂 | Chromium residue detoxifying, smelting contain the method for chromium pig iron |
| CN101875987A (en) * | 2009-12-02 | 2010-11-03 | 吐鲁番沈宏金属工业有限责任公司 | Method for smelting low chromium pig iron by utilizing chromium slag |
| CN101906500A (en) * | 2010-02-05 | 2010-12-08 | 甘肃锦世化工有限责任公司 | Method for directly producing chrome-base alloy steel by comprehensively using calcium-free chrome slag |
| CN101775492A (en) * | 2010-02-26 | 2010-07-14 | 上海海事大学 | Method for producing ferrum-silicon-aluminium alloy by aluminium ashes and copper slag |
| CN104404260A (en) * | 2014-11-24 | 2015-03-11 | 北京神雾环境能源科技集团股份有限公司 | Method for separating valuable metals from copper slag |
| CN105018722A (en) * | 2015-08-12 | 2015-11-04 | 唐竹胜 | Method for separating and reducing iron powder from refractory mineral, complex ore and iron-containing waste materials |
Non-Patent Citations (1)
| Title |
|---|
| 王贞等: "无钙铬渣冶炼铬铁的原料配比试验", 《铁合金》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105562423B (en) | A kind of incineration of refuse flyash melting process for the treatment of | |
| CN106082646B (en) | The method for cooperateing with melting to prepare glass sand with domestic garbage incineration flyash using electroplating sludge | |
| CN101920983B (en) | Method for recovering carbon dioxide and preparing calcium carbonate micropowder by utilizing converter slag | |
| CN108275974B (en) | Water permeable brick and method for preparing water permeable brick by using fly ash | |
| CN112390526B (en) | Method for harmlessly treating cyanided tailings in surface crystallization process of microcrystalline glass granules | |
| WO2019174463A1 (en) | Method for fixing arsenic-containing waste using high-temperature liquid furnace slag | |
| CN110548748A (en) | Collaborative melting treatment method for waste SCR flue gas denitration catalyst and fly ash | |
| CN104692682A (en) | Garbage incineration fly ash filter cake modification method | |
| CN105170638A (en) | Green multi-metal cooperation stabilization agent for fly ash and application method for green multi-metal cooperation stabilization agent | |
| CN104399222B (en) | Composite biomass charcoal domestic garbage incineration flyash processing stabilizer and preparation method thereof | |
| CN111847928A (en) | Method for comprehensively utilizing waste incineration fly ash and flotation tailings | |
| CN105861845A (en) | Method for combined treatment of copper slags and steel slags | |
| CN104324931A (en) | Solidifying/stabilizing treatment method for waste incineration fly ash | |
| CN110639935A (en) | Waste incineration fly ash treatment method | |
| CN103924089A (en) | Method of melting stainless steel dust, slag and Cr-containing sludge | |
| CN111254283B (en) | Process for deeply purifying and decontaminating zinc leachate by wet method | |
| CN102851512B (en) | Method for producing iron alloy through vanadium extraction tailing reduction smelting | |
| CN105861833B (en) | A kind of method of Combined Treatment copper ashes and chromium slag | |
| CN106086429A (en) | A kind of Combined Treatment chromium slag and the method for copper ashes | |
| CN113713313B (en) | Method for treating heavy metal in fly ash | |
| CN111229815B (en) | Method for restoring chromium-polluted site soil | |
| CN113337719A (en) | Comprehensive utilization and harmless treatment process for arsenic-containing smoke dust | |
| CN107252810A (en) | A kind of method of heavy metal in melting and solidification incineration firing flying dust | |
| CN108905040B (en) | Preparation and application method of incineration fly ash heavy metal stabilizing medicament | |
| CN110723934A (en) | Preparation method of dry-process detoxified and resource-recycled brick making of chromium slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20190409 |