CN109055716A - A kind of tungsten powder, tungsten carbide fabric recovery method - Google Patents
A kind of tungsten powder, tungsten carbide fabric recovery method Download PDFInfo
- Publication number
- CN109055716A CN109055716A CN201811171031.8A CN201811171031A CN109055716A CN 109055716 A CN109055716 A CN 109055716A CN 201811171031 A CN201811171031 A CN 201811171031A CN 109055716 A CN109055716 A CN 109055716A
- Authority
- CN
- China
- Prior art keywords
- tungsten
- tungsten powder
- tungsten carbide
- recovery method
- 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.)
- Granted
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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/36—Obtaining tungsten
-
- 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
-
- 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
- C22B7/002—Dry processes by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
-
- 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
- C22B7/006—Wet processes
- C22B7/008—Wet processes by an alkaline or ammoniacal leaching
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Carbon And Carbon Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of tungsten powder, tungsten carbide fabric recovery method, method includes the following steps: broken；Windrow accumulates material a and material b in a certain way, and the mode of windrow is that material a, material b laying layer are successively accumulated；Conversion, light material b, convert material a and b in an oxidizing atmosphere, in the conversion process, transformed material needs to separate with unconverted material timing, and transformed material needs with the unconverted feed separation time to be -150 minutes 0.1 minute, prepares ammonium tungstate (sodium) solution, the powder converted in S3 is dissolved in ammonium hydroxide or liquid alkaline, and ammonium tungstate (sodium) solution is obtained by filtration after dissolution.A kind of tungsten powder of the present invention, tungsten carbide fabric recovery method, the method provided can make tungsten powder, tungsten carbide waste conversion under conditions of no special equipment facility, and not need external heat source, can be energy saving, and conversion ratio reaches 95% or more.
Description
Technical field
A kind of the present invention relates to tungsten metallurgical technology field more particularly to tungsten powder, tungsten carbide the recovery method of fabric.
Background technique
Traditional tungsten powder, tungsten carbide powder in fabric recovery processing, be that powdered useless tungsten powder is first passed through oxidation to be converted into
Tungsten oxide, then tungsten oxide is formed into tungstates by the method for alkali soluble.In the conversion process, due to tungsten powder, tungsten carbide powder ground
Material is collected from ground etc., wherein containing different impurity, such as mud, hair, it is therefore necessary to special equipment into
Row conversion, and necessarily have dust collection device in converting apparatus, and dust collecting system is collecting the tungsten for having certain temperature because of oxidation reaction
When powder or tungsten carbide, it is also difficult to the accident of tungsten powder burning, explosion be avoided to occur.
Chinese patent CN103924092A, a kind of efficient recycling method of useless tungsten powder, the patent use hierarchical static furnace
Tungsten powder is converted.Compared with this patent, conversion is can be completed without professional equipment in the present invention.
Summary of the invention
The main purpose of the present invention is to provide a kind of tungsten powder, tungsten carbide fabric recovery method, can effectively solve
The problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of tungsten powder, tungsten carbide fabric recovery method, method includes the following steps:
S1: broken, tungsten powder fabric and additive 1 are crushed to certain particle size, then by broken tungsten powder fabric with add
Agent 1 is added to mix, which is a, tungsten carbide fabric and the mixing of additive 2 are crushed to certain particle size, then will be crushed
Tungsten powder fabric and additive 1 mix, which is b；
S2: windrow accumulates material a and material b in a certain way, and the mode of windrow is material a, material b paving
If layer is successively accumulated；
S3: conversion lights material b, converts material a and b in an oxidizing atmosphere, in the conversion process,
The material of conversion needs to separate with unconverted material timing, and transformed material needs and when unconverted feed separation
Between be -150 minutes 0.1 minute, preferably -80 minutes 0.1 minute；
S4: preparing ammonium tungstate (sodium) solution, and the powder converted in S3 is dissolved in ammonium hydroxide or liquid alkaline, is filtered after dissolution
To ammonium tungstate (sodium) solution.
Preferably, the broken average particle size of the material a and material b is less than 50 μm, preferably smaller than 45 μm.
Preferably, the material a and material b are converted in an oxidizing atmosphere, preferably oxygen-enriched, air conditions.
Preferably, the additive 1 is oxidizing substance, preferably sodium nitrate, potassium permanganate, potassium chlorate, the addition
Agent 2 is combustible, and preferably ignition temperature is greater than 300 DEG C of combustible.
Preferably, the dosage for the liquid alkaline or ammonium hydroxide that dissolve conversion material is 1.2-2 times of theoretical amount, preferably theoretical amount
1.2-1.5 times.
Compared with prior art, the invention has the following beneficial effects: the tungsten powder, tungsten carbide fabric recovery method,
By being laid with carbide layers, tungsten powder layer, reaction is allowed to convert more abundant.Tungsten powder and tungsten carbide with air reaction heat release, but
It is that the exothermic heat of tungsten powder is lower, air can take away the heat of its reaction, so that it is not to participating in the material waste heat of reaction also not
It is good, cause reaction cannot be continuous.By adding oxidant in tungsten powder layer, then it is allowed to be carbonized tungsten layer preheating, turns tungsten powder layer
Change more complete；A benefit of the invention that being not required to add or tungsten powder, tungsten carbide can be completed using corresponding installations and facilities
Conversion, while also ing save the energy；Another benefit of the invention is under conditions of gravity-flow ventilation, to avoid closed
Under the conditions of, the heated danger exploded of dust.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
Tungsten powder of the 250g containing WO3113.6% is taken, and the mixing of 10g carbon dust is added and is crushed 0.5 hour, average particle size after being crushed
It is 28 μm.Take tungsten powder of the 100g containing WO3102% and 6g potassium chlorate solid and tungsten powder 0.5 hour broken, broken rear average particle size is
30μm.Carbide layers are laid with to the reaction vessel bottom, middle layer is tungsten powder layer, and face upper layer is carbide layers.Use open firing point
Top layer's carbide layers are fired, transformed material, such circulate operation are separated after 2-8 minutes.After converting completely, with containing
The sodium hydroxide dissolution conversion material of 165g, stirring after twenty minutes, are filtered twice, and obtaining WO3 concentration is the molten of 132.2g/l
Liquid 2.8L, conversion ratio 95.9%.
Embodiment 2
1000g tungsten powder containing WO3112.8% and 20g diesel oil is taken to mix broken, average particle size is 12 μm after being crushed.Take 1000g
Tungsten powder and the mixing of 16g sodium nitrate solid containing WO3103% are broken, and average particle size is 12 μm after being crushed.It is laid with 5 layers of material altogether, the
2,4 layers are tungsten powder layer, remaining is carbide layers.Top layer's carbide layers are lighted with open fire, upper layer is waited to start to convert, 3-12 points
Transformed material, such circulate operation are separated after clock.After converting completely, conversion is dissolved with the sodium hydroxide containing 850g
Material is filtered twice after stirring 30 minutes, obtains the solution 12L that WO3 concentration is 175.3g/l, conversion ratio 97.5%.
Embodiment 3
Fabric and coke 5g mixing are crushed with taking 200g tungsten carbide containing WO3109%, and average particle size is 35 μ after being crushed
M takes 150g tungsten powder containing WO398% and 5g potassium permanganate solid to mix and is crushed, and broken average particle size is 38 μm.By object
Material is laid in a reservoir, and totally three layers of middle layer are tungsten powder layer.Carbon dust is lighted with open fire, waits upper layer to start to convert, after 2-8 minutes
Separate transformed material, such circulate operation.After converting completely, expected with the sodium hydroxide dissolution conversion containing 150g,
It after stirring 15 minutes, is filtered twice, obtains the solution 2.5L that WO3 concentration is 139.2g/l, conversion ratio 95.3%.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of tungsten powder, tungsten carbide fabric recovery method, which is characterized in that method includes the following steps:
S1: broken, tungsten powder fabric and additive 1 are crushed to certain particle size, then by broken tungsten powder fabric and additive 1
Mixing, the mixed material are a, and tungsten carbide fabric and the mixing of additive 2 are crushed to certain particle size, then by broken tungsten powder
Fabric and additive 1 mix, which is b；
S2: windrow accumulates material a and material b in a certain way, and the mode of windrow is that material a, material b are laid with layer
Successively accumulate；
S3: conversion lights material b, converts material a and b in an oxidizing atmosphere, in the conversion process, inverted
Material need to separate with the timing of unconverted material, and transformed material needs with the unconverted feed separation time are
- 150 minutes 0.1 minute, preferably -80 minutes 0.1 minute；
S4: preparing ammonium tungstate (sodium) solution, and the powder converted in S3 is dissolved in ammonium hydroxide or liquid alkaline, tungsten is obtained by filtration after dissolution
Sour ammonium (sodium) solution.
2. a kind of tungsten powder according to claim 1, tungsten carbide fabric recovery method, it is characterised in that: the material a
Average particle size, which is crushed, with material b is less than 50 μm, preferably smaller than 45 μm.
3. a kind of tungsten powder according to claim 1, tungsten carbide fabric recovery method, it is characterised in that: the material a
It is converted in an oxidizing atmosphere with material b, preferably oxygen-enriched, air conditions.
4. a kind of tungsten powder according to claim 1, tungsten carbide fabric recovery method, it is characterised in that: the addition
Agent 1 is oxidizing substance, preferably sodium nitrate, potassium permanganate, potassium chlorate, and the additive 2 is combustible, preferably burning temperature
Degree is greater than 300 DEG C of combustible.
5. a kind of tungsten powder according to claim 1, tungsten carbide fabric recovery method, it is characterised in that: for dissolving
The dosage of the liquid alkaline or ammonium hydroxide that convert material is 1.2-2 times of theoretical amount, preferably 1.2-1.5 times of theoretical amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171031.8A CN109055716B (en) | 2018-10-09 | 2018-10-09 | Method for recovering tungsten powder and tungsten carbide ground fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171031.8A CN109055716B (en) | 2018-10-09 | 2018-10-09 | Method for recovering tungsten powder and tungsten carbide ground fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109055716A true CN109055716A (en) | 2018-12-21 |
| CN109055716B CN109055716B (en) | 2021-01-08 |
Family
ID=64763635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811171031.8A Active CN109055716B (en) | 2018-10-09 | 2018-10-09 | Method for recovering tungsten powder and tungsten carbide ground fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109055716B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725429A (en) * | 2010-01-08 | 2012-10-10 | 贾亚卡纳安·阿鲁穆加维卢 | A process for recycling of tungsten carbide alloy |
| CN102808085A (en) * | 2012-05-14 | 2012-12-05 | 北京工业大学 | Industrial method for recycling waste wolfram carbide-cobalt (WC-Co) hard alloy |
| CN102912136A (en) * | 2012-09-29 | 2013-02-06 | 崇义章源钨业股份有限公司 | Method for processing tungsten powder wastes |
| CN103193272A (en) * | 2013-04-23 | 2013-07-10 | 江义 | Method for preparing ammonium paratungstate |
| CN103924092A (en) * | 2014-05-06 | 2014-07-16 | 厦门嘉鹭金属工业有限公司 | High-efficient recovery method of waste tungsten powder |
| CN105627744A (en) * | 2014-11-07 | 2016-06-01 | 黔东南州龙达再生能源开发有限责任公司 | Novel tungsten carbide roasting kiln |
-
2018
- 2018-10-09 CN CN201811171031.8A patent/CN109055716B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725429A (en) * | 2010-01-08 | 2012-10-10 | 贾亚卡纳安·阿鲁穆加维卢 | A process for recycling of tungsten carbide alloy |
| CN102808085A (en) * | 2012-05-14 | 2012-12-05 | 北京工业大学 | Industrial method for recycling waste wolfram carbide-cobalt (WC-Co) hard alloy |
| CN102912136A (en) * | 2012-09-29 | 2013-02-06 | 崇义章源钨业股份有限公司 | Method for processing tungsten powder wastes |
| CN103193272A (en) * | 2013-04-23 | 2013-07-10 | 江义 | Method for preparing ammonium paratungstate |
| CN103924092A (en) * | 2014-05-06 | 2014-07-16 | 厦门嘉鹭金属工业有限公司 | High-efficient recovery method of waste tungsten powder |
| CN105627744A (en) * | 2014-11-07 | 2016-06-01 | 黔东南州龙达再生能源开发有限责任公司 | Novel tungsten carbide roasting kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109055716B (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2021218169B2 (en) | Recovery of Lithium from Silicate Minerals | |
| CN101638731B (en) | Method for separating rare earth oxides from rare earth ore by using ammonium chloride-potassium chloride gas phase transmission | |
| CN100482814C (en) | Extraction of vanadium and molybdenum compound from refused materials containing vanadium and molybdenum etc. multiple elements | |
| CN109047285A (en) | Containing sodium, the method for transformation of fluorochemical and system in a kind of waste cathode of aluminum electrolytic cell carbon block | |
| CN108941167A (en) | Mechanochemistry conversion and recovery method in a kind of waste cathode of aluminum electrolytic cell carbon block containing sodium, fluorochemical | |
| CN102515279A (en) | Comprehensive extraction method of ferro-silico-aluminum in gangue | |
| CN102515280B (en) | Method for separation of aluminum and iron from acid leaching solution of coal gangue with high iron content | |
| CN109534466B (en) | Method for preparing water purifying agent containing polymerized aluminum chloride from aluminum ash | |
| CN107352819A (en) | A kind of aluminium cell carbonaceous waste material is used for the method for producing calcium aluminum fluoride clinker | |
| CN101509079A (en) | Method for comprehensively processing stibium smelt arsenic alkaline residue and producing colloid antimony peroxide | |
| CN107363074B (en) | A kind of aluminium cell carbonaceous materials recycling is the method for alternative fire coal | |
| CN106987708B (en) | A kind of defluorinate calciner and technique containing lithium minerals | |
| CN105217589B (en) | The power-economizing method of yellow phosphorus coproduction sylvite, sodium carbonate and aluminum oxide | |
| CN102560132B (en) | Method for treating selenium alkali residues in antimony pyro-refining | |
| CN109127655A (en) | A kind of aluminium electroloysis is given up in breeze containing sodium, the method for transformation of fluorochemical and system | |
| CN109108050A (en) | Containing sodium, the method for transformation of fluorochemical and system in a kind of aluminium electroloysis slag from delining | |
| CN101492775A (en) | Torrefaction additive for extracting vanadium pentoxide from vanadium-containing bone coal and method of use thereof | |
| CN109055716A (en) | A kind of tungsten powder, tungsten carbide fabric recovery method | |
| CN105907943B (en) | Lithium ore chlorinating agent inorganic base roasts organic solvent leaching and extracts lithium technique | |
| CN107902683A (en) | Method for extracting silicon product and aluminum oxide step by mixing, reducing and roasting fly ash and sulfuric acid | |
| CN108275714A (en) | A kind of method that sodium chloride-ammonia joint leaches production feed grade zinc oxide | |
| CN1952192A (en) | Process for extracting vanadium from peroxide sintered ore and furnace slag | |
| CN107352542A (en) | A kind of regeneration method and its application of aluminium cell carbonaceous waste material | |
| CN107215883B (en) | It is a kind of to utilize potassium feldspar-waste gypsum mineralising CO2The commercial run of co-producing sulfuric acid potassium and sulfur dioxide | |
| CN205907333U (en) | System for handle zinc leaching residue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |