CN103128292B - A kind of copper pearl Catalysts and its preparation method - Google Patents

A kind of copper pearl Catalysts and its preparation method Download PDF

Info

Publication number
CN103128292B
CN103128292B CN201110384351.3A CN201110384351A CN103128292B CN 103128292 B CN103128292 B CN 103128292B CN 201110384351 A CN201110384351 A CN 201110384351A CN 103128292 B CN103128292 B CN 103128292B
Authority
CN
China
Prior art keywords
atomization
copper
melt
copper pearl
pressure
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.)
Active
Application number
CN201110384351.3A
Other languages
Chinese (zh)
Other versions
CN103128292A (en
Inventor
陈林
曾明军
孟庆芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing You Yanchongye novel material company limited
Original Assignee
Chongqing You Yanchongye Novel Material Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing You Yanchongye Novel Material Co Ltd filed Critical Chongqing You Yanchongye Novel Material Co Ltd
Priority to CN201610305635.1A priority Critical patent/CN105903974B/en
Priority to CN201110384351.3A priority patent/CN103128292B/en
Publication of CN103128292A publication Critical patent/CN103128292A/en
Application granted granted Critical
Publication of CN103128292B publication Critical patent/CN103128292B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F136/14—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
    • C08F136/16—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
    • C08F136/18—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen containing chlorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

A kind of copper pearl catalyst, to adopt water atomization to make, comprise the steps such as melting, hydraulic atomized, cooling collection powder, dehydration, the described air that passes in fusion process makes the oxygen content of melt greatly about 0.05～0.4wt%, in described hydraulic atomized process melt liquid flow diameter at 8～13mm, high-pressure atomization hydraulic pressure at 0.05Mpa～0.5Mpa, atomized water flow at 50～100L/min, in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is 200～700mm; Described copper pearl powder size is 0.154mm～5mm, and loose specific weight is 5.0g/cm3～5.6g/cm3, oxygen content is roughly 0.1～0.5%. This copper pearl granule surface area is large, has improved reaction efficiency, reaction speed is controlled, and effectively the quality that has improved neoprene is controlled in reaction, and the consumption of higher order reaction tank significantly reduces, cost-saving, does not need continuous heating, improves environment, saves the energy.

Description

A kind of copper pearl Catalysts and its preparation method
Technical field
The present invention relates to a kind of Catalysts and its preparation method, be specifically related to a kind of copper pearl Catalysts and its preparation method.
Background technology
Water atomization is produced the trend that powder is powder metallurgy powder process development, is industrial production energy-saving and environmental protection, efficient, highThe requirement of performance. If number of patent application is 03136699.6 to disclose a kind of method of preparing copper powder by water atomization, comprise melting,The steps such as atomization, dehydration, reduction sintering, screening, make loose specific weight lower than 2.9g/cm3Copper powder of low apparent density. At present both at home and abroadWater atomization production of copper powder from the control that is designed into technique of equipment, be the requirement that is adapted to powder metallurgy industry completely, powderThe requirement of end product is: powder size is controlled at and is less than 0.074mm; Loose specific weight control trends towards to little direction research and rawProduce, pine is than being controlled at lower than 3.00g/cm3; Low oxygen content; High powder compaction performance etc.
In neoprene production, catalytic reaction is very important operation, is determining to a great extent what neoprene was producedOutput, the serviceability of cost and neoprene. Now domestic neoprene is the conduct of main use electrolysis copper coin in producingThe additive of catalytic reaction, but there is obvious defect as additive in electrolysis copper coin:
1, electrolysis copper coin specific area is little, causes reaction efficiency low.
2, course of reaction can not realize dynamic effectively control.
3, reaction needed heating, consumes a large amount of costs, and causes environmental pollution.
4, higher order reaction tank, owing to being subject to the shock of irregular electrolysis copper coin, is easy to anticorrosive coat to damage, due toIn reaction raw materials, exist the CL of severe corrosive, once the corrosion-resistant coating of retort is destroyed, retort will cause and scrap, largeIncrease greatly production cost.
Summary of the invention
The object of the present invention is to provide a kind of copper pearl catalyst of preparing neoprene that is exclusively used in.
Another object of the present invention is to provide the preparation method of above-mentioned copper pearl catalyst.
The object of the invention is to be achieved through the following technical solutions:
A kind of copper pearl catalyst, is to adopt water atomization to make, and it is characterized in that: described water atomization comprises melting, heightThe steps such as setting-out atomization, cooling collection powder, dehydration, described in fusion process, pass into oxygen content that air makes melt 0.05～0.4wt%, in described hydraulic atomized process melt liquid flow diameter 8～13mm, high-pressure atomization hydraulic pressure 0.05Mpa～0.5Mpa, atomized water flow be at 50～100L/min, atomization focal length cooling water liquid level top in described cooling collection powder processDifference in height be 200～700mm; Described copper pearl powder size is 0.154mm～5mm, and loose specific weight is 5.0g/cm3～5.6g/cm3, oxygen content is 0.1～0.5%.
Copper pearl catalyst of the present invention is applied to be prepared in neoprene, and compared with electrolysis copper coin catalyst, course of reaction is easyRealize dynamic effectively control; Its granularity is large in addition, oxygen content is high when specific area Datong District, more easily absorb, hold reaction heat, fromAnd do not need continuous heating to save the energy, make to react hear rate lower, reaction milder, more Gao Keda of catalytic reaction efficiency94%～97.5%; Copper pearl catalyst can not exist and make higher order reaction tank be subject to irregular the hitting of electrolysis copper coin that be similar to simultaneouslyHit, thus the destruction of causing anticorrosive coat. In a word, copper pearl catalyst of the present invention is applied to prepare in neoprene and has realized and reacted effectRate is high, reaction has obtained effective control, low energy consumption, low cost.
The preparation method of above-mentioned copper pearl catalyst, carries out as follows:
A. cathode copper is added to melting in smelting furnace, pass into air simultaneously, make the oxygen content of melt at 0.05～0.4wt%;
B. melt enters atomising device, described melt liquid flow diameter is 8～13mm, pass into simultaneously water under high pressure carry out atomization,High-pressure atomization hydraulic pressure at 0.05Mpa～0.5Mpa, atomized water flow at 50～100L/min;
C. cooling collection powder: in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is 200～700mm；
D. finally carry out centrifugal dehydration, add hydrogen, nitrogen reduction sintering, gradation sizing.
Preferably, in above-mentioned steps a air to pass into speed be 3～5L/min.
The copper pearl catalyst fines granularity that said method makes is 0.154mm～5mm, and loose specific weight is 5.0g/cm3～5.6g/cm3, oxygen content is 0.1～0.5%. Above-mentioned smelting technology is to improve viscosity and the surface tension of melt, is conducive to changeKind shaping of dusting; Atomization process involved in the present invention is to control the granularity of copper pearl, thereby has affected the specific surface of copper pearlLong-pending; Collection powder process for cooling involved in the present invention is further to control the granularity of copper pearl. In a word, technique involved in the present inventionThe optimum organization of parameter: be accurately to control the specific area of water atomization copper pearl, granularmetric composition scope etc., do not lump simultaneously;Adjust by neoprene production requirement, the optimum organization of technique is simultaneously conducive to reduce production cost.
The present invention has following beneficial effect:
The present invention is applied to the research and development of the water atomization copper pearl of neoprene industry, is different from powder used in metallurgy water atomization completelyThe production of copper powder, in technique, definite the employing with water atomization copper powder of each process conditions produced antipodal thinking, comprisesSuitably increase copper liquid oxygen content, atomization parameter, the burnt liquid discrepancy in elevation etc., more note on this basis the optimization of each technique. This copper pearl opensSend out successfully, promoted technical merit that neoprene produces, saved cost, integrated following some:
1, granule surface area is large, has improved reaction efficiency, reaction speed is controlled.
2, effectively the quality that has improved neoprene is controlled in reaction.
3, the consumption of higher order reaction tank significantly reduces, cost-saving.
4, do not need continuous heating, improve environment, save the energy.
Detailed description of the invention
Below by embodiment, the present invention is specifically described, is necessary to be pointed out that at this following examples only useIn the present invention is further described, can not be interpreted as limiting the scope of the invention, the people that is skilled in technique in this fieldMember can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1
A preparation method for copper pearl catalyst, carries out as follows:
A. cathode copper is added to melting in smelting furnace, pass into air, air to pass into speed be 3～5L/min simultaneously, makes to meltThe oxygen content of body is at 0.2～0.3wt%;
B. melt enters atomising device, described melt liquid flow diameter is 11～13mm, pass into simultaneously water under high pressure carry out atomization,High-pressure atomization hydraulic pressure at 0.05Mpa～0.15Mpa, atomized water flow at 72～95L/min;
C. cooling collection powder: in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is 200～300mm；
D. finally carry out centrifugal dehydration, add hydrogen, nitrogen reduction sintering, gradation sizing.
The above-mentioned copper pearl powder size making is 3mm～5mm, and loose specific weight is 5.4g/cm3～5.6g/cm3, oxygen contentBe 0.3～0.5%. Be applied to prepare in neoprene that catalytic reaction efficiency is high by 95%, reaction has obtained effective control, low energy consumption,Low cost.
Embodiment 2
A preparation method for copper pearl catalyst, carries out as follows:
A. cathode copper is added to melting in smelting furnace, pass into air, air to pass into speed be 3～5L/min simultaneously, makes to meltThe oxygen content of body is at 0.05～0.15wt%;
B. melt enters atomising device, described melt liquid flow diameter is 8～10mm, pass into simultaneously water under high pressure carry out atomization,High-pressure atomization hydraulic pressure at 0.25Mpa～0.35Mpa, atomized water flow at 50～70L/min;
C. cooling collection powder: in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is 320～500mm；
D. finally carry out centrifugal dehydration, add hydrogen, nitrogen reduction sintering, gradation sizing.
The above-mentioned copper pearl powder size making is 0.154mm～2mm, and loose specific weight is 5.0g/cm3～5.3g/cm3, oxygenContent is 0.1～0.2%. Be applied to and prepare in neoprene that catalytic reaction efficiency is high by 94%, reaction has obtained effective control, low energyConsumption, low cost.
Embodiment 3
A preparation method for copper pearl catalyst, carries out as follows:
A. cathode copper is added to melting in smelting furnace, pass into air, air to pass into speed be 3～5L/min simultaneously, makes to meltThe oxygen content of body is at 0.32～0.4wt%;
B. melt enters atomising device, described melt liquid flow diameter is 12～13mm, pass into simultaneously water under high pressure carry out atomization,High-pressure atomization hydraulic pressure at 0.4Mpa～0.5Mpa, atomized water flow at 80～100L/min;
C. cooling collection powder: in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is 550～700mm；
D. finally carry out centrifugal dehydration, add hydrogen, nitrogen reduction sintering, gradation sizing.
The above-mentioned copper pearl powder size making is 2mm～3mm, and loose specific weight is 5.2g/cm3～5.5g/cm3, oxygen contentBe 0.2～0.4%. Be applied to and prepare in neoprene that catalytic reaction efficiency is high by 97.5%, reaction has obtained effective control, low energyConsumption, low cost.

Claims (3)

1. a copper pearl catalyst, is to adopt water atomization to make, and it is characterized in that: described water atomization comprises melting, high pressureWater atomization, cooling collection powder, dehydration, pass into air and make the oxygen content of melt at 0.05～0.4wt% in described fusion process,In described hydraulic atomized process melt liquid flow diameter at 8～13mm, high-pressure atomization hydraulic pressure in 0.05Mpa～0.5Mpa, atomizationDischarge is at 50～100L/min, and in described cooling collection powder process, the difference in height of atomization focal length cooling water liquid level top is200～700mm; Described copper pearl powder size is 0.154mm～5mm, and loose specific weight is 5.0g/cm3～5.6g/cm3, oxygen contentBe 0.1～0.5%.
2. the preparation method of copper pearl catalyst as claimed in claim 1, carries out as follows:
A. cathode copper is added to melting in smelting furnace, pass into air simultaneously, make the oxygen content of melt at 0.05～0.4wt%;
B. melt enters atomising device, melt liquid flow diameter is 8～13mm, passes into water under high pressure simultaneously and carries out atomization, high-pressure atomizationHydraulic pressure at 0.05Mpa～0.5Mpa, atomized water flow at 50～100L/min;
C. cooling collection powder: in described cooling collection powder process the difference in height of atomization focal length cooling water liquid level top be 200～700mm；
D. finally carry out centrifugal dehydration, add hydrogen, nitrogen reduction sintering, gradation sizing makes copper pearl catalyst.
3. preparation method as claimed in claim 2, is characterized in that: in described a step, to pass into speed be 3～5L/ to airmin。
CN201110384351.3A 2011-11-28 2011-11-28 A kind of copper pearl Catalysts and its preparation method Active CN103128292B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610305635.1A CN105903974B (en) 2011-11-28 2011-11-28 A kind of catalyst preparing neoprene
CN201110384351.3A CN103128292B (en) 2011-11-28 2011-11-28 A kind of copper pearl Catalysts and its preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110384351.3A CN103128292B (en) 2011-11-28 2011-11-28 A kind of copper pearl Catalysts and its preparation method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201610305635.1A Division CN105903974B (en) 2011-11-28 2011-11-28 A kind of catalyst preparing neoprene

Publications (2)

Publication Number Publication Date
CN103128292A CN103128292A (en) 2013-06-05
CN103128292B true CN103128292B (en) 2016-05-18

Family

ID=48489105

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201610305635.1A Active CN105903974B (en) 2011-11-28 2011-11-28 A kind of catalyst preparing neoprene
CN201110384351.3A Active CN103128292B (en) 2011-11-28 2011-11-28 A kind of copper pearl Catalysts and its preparation method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610305635.1A Active CN105903974B (en) 2011-11-28 2011-11-28 A kind of catalyst preparing neoprene

Country Status (1)

Country Link
CN (2) CN105903974B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3454890B2 (en) * 1993-11-17 2003-10-06 セイコーエプソン株式会社 Method for producing metal or alloy powder
JP2004169056A (en) * 2002-11-15 2004-06-17 Mitsui Mining & Smelting Co Ltd Copper powder for conductive paste, conductive paste, and method for manufacturing copper powder for conductive paste
CN1286604C (en) * 2003-05-29 2006-11-29 中科铜都粉体新材料股份有限公司 Method for preparing copper powder by water atomization method
CN1919505B (en) * 2005-08-25 2011-03-16 播磨化成株式会社 Method of manufacturing the snznnicu solder powder and the snznnicu solder powder
JP2007084906A (en) * 2005-09-26 2007-04-05 Fukuda Metal Foil & Powder Co Ltd Ag-BASED METAL POWDER, Cu-BASED METAL POWDER, AND METHOD FOR PRODUCING THE SAME
CN101837460B (en) * 2010-04-26 2011-12-28 吴棕洋 Method for preparing low-apparent-density copper powder through water atomization
CN101992300A (en) * 2010-11-04 2011-03-30 江苏大方金属粉末有限公司 Preparation method for sintered copper powder material of heat pipe

Also Published As

Publication number Publication date
CN105903974B (en) 2018-11-09
CN105903974A (en) 2016-08-31
CN103128292A (en) 2013-06-05

Similar Documents

Publication Publication Date Title
CN101837460B (en) Method for preparing low-apparent-density copper powder through water atomization
CN104227007B (en) The method of aluminium powder and Al alloy powder is prepared in a kind of water atomization
CN104479410A (en) Calcium carbonate surface treatment method
CN102899482B (en) Isothermal sintering process of iron ore powder
CN1286604C (en) Method for preparing copper powder by water atomization method
CN204170441U (en) The reverse-flow spray-drying installation of a kind of ceramic size
CN101972854A (en) Method for preparing copper-based powder with low oxygen content and low apparent density through atomization
CN104028768A (en) Nickel alloy powder atomization manufacturing process and equipment thereof
CN103128292B (en) A kind of copper pearl Catalysts and its preparation method
CN205043108U (en) High -efficient base device of continuous type high -speed railway contact wire
CN204321200U (en) A kind of water fog method prepares copper powder atomization bucket
CN204321199U (en) A kind of water fog method produces copper alloy powder atomising device
CN201776121U (en) Granulator changing water inlet direction of water adding pipe and suspending mode of water pipe
CN105057614A (en) Continuous efficient blank making device for high-speed rail contact line
CN101323019B (en) Method for manufacturing tin powder for organotin production
CN201876104U (en) Ball-milling rotary kiln with slurry spraying system
CN103128291A (en) Preparation method of copper bead catalyst
CN103128294A (en) Large-granularity copper powder catalyst preparation method
CN105200183B (en) A kind of converter gas dry method dust two-fluid spray nozzle operation process
CN103128293A (en) Prepared method of metal bead catalyst used for producing chloroprene rubber
CN103056183A (en) Thick-walled seamless steel tube short process casting and squeezing continuous formation method
CN210132056U (en) Preparation facilities of superfine nickel powder of high purity high homogeneity
CN205833396U (en) A kind of sour method composite heat transfer dilute sulfuric acid spray appliance
CN212398132U (en) Device for producing atomized iron powder by spraying after reduction of scrap steel
CN204727948U (en) The film coating preset mechanism that a kind of thickness is adjustable

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20160411

Address after: 401431 Sanjiang street, Qijiang District, Chongqing

Applicant after: Chongqing You Yanchongye novel material company limited

Address before: 401431 Sanjiang street, Qijiang, Chongqing

Applicant before: Chongqing Smeltted Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant