CN105903974B - A kind of catalyst preparing neoprene - Google Patents

A kind of catalyst preparing neoprene Download PDF

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Publication number
CN105903974B
CN105903974B CN201610305635.1A CN201610305635A CN105903974B CN 105903974 B CN105903974 B CN 105903974B CN 201610305635 A CN201610305635 A CN 201610305635A CN 105903974 B CN105903974 B CN 105903974B
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atomized
neoprene
oxygen content
passed
powder
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CN105903974A (en
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陈林
曾明军
孟庆芳
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Chongqing You Yanchongye Novel Material Co Ltd
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Chongqing You Yanchongye Novel Material Co Ltd
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    • 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

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  • 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 catalyst preparing neoprene, it is to be made using water atomization, including melting, hydraulic atomized, cooling collection powder, dehydration, the air that is passed through in fusion process makes the oxygen content of melt about in 0.05~0.4wt%, the hydraulic atomized melt liquid stream diameter in the process is atomized the difference in height of focal length cooling water ullage as 200~700mm in 0.05Mpa~0.5Mpa, atomized water flow in 8~13mm, high-pressure atomization hydraulic pressure during 50~100L/min, the cooling collection powder；The copper bead powder size is 0.154mm~5mm, loose specific weight 5.0g/cm3~5.6 g/cm3, oxygen content substantially 0.1~0.5%.The copper bead granule surface area is big, improves that reaction efficiency, reaction speed are controllable, and effective reaction controlling improves the quality of neoprene, and the consumption of higher order reaction tank is greatly lowered, cost-effective, does not need continuous heating, improves environment, energy saving.

Description

A kind of catalyst preparing neoprene
The present patent application is the patent of invention for November 28 2011 applying date, application number 201110384351.3 Divisional application.
Technical field
The present invention relates to a kind of catalyst, and in particular to a kind of catalyst and preparation method thereof preparing neoprene.
Background technology
Catalysis reaction is very important process in neoprene production, is largely fixed neoprene production The performance of yield, cost and neoprene.Electrolytic copper plate conduct is mainly used in domestic neoprene production now It is catalyzed the additive of reaction, but electrolytic copper plate is as additive that there are apparent defects：Electrolytic copper plate specific surface area is small, causes Reaction efficiency is low；Reaction process can not achieve dynamic effectively control；Reaction needs to heat, and consumes a large amount of cost, and make At environmental pollution；Higher order reaction tank by irregular electrolytic copper plate due to being hit, it is easy to erosion resistant coating damaged, due to There is the CL of strong corrosive in reaction raw materials, once the corrosion-resistant coating of retort is destroyed, then retort will cause to scrap, greatly Increase production cost greatly.
Preparing copper powder by water atomization end is the trend of powder metallurgy powder development, if number of patent application is 03136699.6 public It has opened a kind of method of preparing copper powder by water atomization, including melting, atomization, dehydration, reduction sintering, screening, pine is made It fills proportion and is less than 2.9g/cm3Copper powder of low apparent density.Water atomization production copper powders both domestic and external are designed into technique from equipment at present Control, be adaptable to the requirement of powder metallurgy industry completely, the requirement of powder-product is：Powder size control less than 0.074mm；Loose specific weight control is intended to small direction research and production, and pine is than control less than 3.00g/cm3；Low oxygen Content；High powder suppression performance etc..
Invention content
The purpose of the present invention is to provide a kind of copper bead catalyst for being exclusively used in preparing neoprene.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of copper bead catalyst preparing neoprene is made using water atomization, it is characterised in that：The water atomization Including melting, hydraulic atomized, cooling collection powder, dehydration, the air that is passed through in fusion process makes the oxygen of melt contain Amount exists in 0.05~0.4wt%, the hydraulic atomized melt liquid stream diameter in the process in 8~13mm, high-pressure atomization hydraulic pressure 0.05Mpa~0.5Mpa, atomized water flow are atomized focal length cooling water during 50~100L/min, the cooling collection powder The difference in height of ullage is 200~700mm；The copper bead powder size is 0.154mm~5mm, loose specific weight 5.0g/ cm3~5.6 g/cm3, oxygen content is 0.1~0.5%.
Copper bead catalyst produced by the present invention is applied to prepare in neoprene, compared with electrolytic copper plate catalyst, reaction Process easily realizes dynamic effectively control；In addition its granularity is big, large specific surface area high oxygen content simultaneously, be more easy to absorb, accommodate it is anti- It answers heat, saved the energy without continuous heating so that reaction heat consumption is lower, reacts milder, and catalysis reaction efficiency is more It is high by reachable 94%~97.5%；There is no so that higher order reaction tank is similar to electrolytic copper plate by irregular for copper bead catalyst simultaneously Shock, to cause the destruction of erosion resistant coating.It is realized in neoprene instead in short, copper bead catalyst of the present invention is applied to prepare Answer it is efficient, effective control, low energy consumption, low cost has been obtained by the reaction.
Specifically, the preparation method of above-mentioned copper bead catalyst, carries out as follows：
A. melting in smelting furnace is added in cathode copper, while is passed through air, make the oxygen content of melt in 0.05~0.4wt%；
B. melt enters atomising device, a diameter of 8~13mm of melt liquid stream, at the same be passed through high pressure water be atomized, High-pressure atomization hydraulic pressure is in 0.05Mpa~0.5Mpa, atomized water flow in 50~100L/min；
C. cooling collection powder：It is 200 to be atomized the difference in height of focal length cooling water ullage during the cooling collection powder ~700mm；
D. centrifugal dehydration is finally carried out, hydrogen, nitrogen reduction sintering, gradation sizing is added.
Preferably, it is 3~5L/min that air, which is passed through rate, in above-mentioned steps a.
Copper bead catalyst fines granularity made from the above method is 0.154mm~5mm, loose specific weight 5.0g/cm3~ 5.6 g/cm3, oxygen content is 0.1~0.5%.Above-mentioned smelting technology is to improve the viscosity and surface tension of melt, is conducive to change The kind forming dusted；Atomization process according to the present invention is to control the granularity of copper bead, to affect the specific surface of copper bead Product；Collection powder cooling technique according to the present invention is further to control the granularity of copper bead.In short, technique according to the present invention The optimum organization of parameter：It is to have accurately controlled the specific surface area of water atomization copper bead, granularmetric composition range etc., while does not lump； It is adjusted by neoprene production requirement, while the optimum organization of technique advantageously reduces the cost of production.
The present invention has following advantageous effect：
The present invention is applied to the research and development of the water atomization copper bead of neoprene industry, is different from powder used in metallurgy water atomization completely The production of copper powder, the determination of each process conditions is used in technique produces antipodal thinking with water atomization copper powder, including It is appropriate to increase copper liquid oxygen content, atomization parameter, burnt liquid height difference etc., the optimization of each technique is more paid attention on this basis.The copper bead is opened It sends out and successfully improves the technical merit of neoprene production, saved cost, integrated the following：Granule surface area Greatly, it is controllable that reaction efficiency, reaction speed are improved；Effective reaction controlling improves the quality of neoprene；Higher order reaction tank Consumption be greatly lowered, it is cost-effective；Continuous heating is not needed, environment is improved, it is energy saving.
Specific implementation mode
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that following embodiment is only used In invention is further explained, it should not be understood as limiting the scope of the invention, the people that is skilled in technique in the field Member can make some nonessential modifications and adaptations according to aforementioned present invention content to the present invention.
Embodiment 1
A kind of catalyst preparing neoprene, is made as follows：
A. by cathode copper be added smelting furnace in melting, while be passed through air, air be passed through rate be 3~5L/min, make to melt The oxygen content of body is in 0.2~0.3wt%；
B. melt enters atomising device, a diameter of 11~13mm of melt liquid stream, at the same be passed through high pressure water be atomized, High-pressure atomization hydraulic pressure is in 0.05Mpa~0.15Mpa, atomized water flow in 72~95L/min；
C. cooling collection powder：It is 200 to be atomized the difference in height of focal length cooling water ullage during the cooling collection powder ~300mm；
D. centrifugal dehydration is finally carried out, hydrogen, nitrogen reduction sintering, gradation sizing is added.
Copper bead powder size obtained above is 3mm~5mm, loose specific weight 5.4g/cm3~5.6 g/cm3, oxygen content It is 0.3~0.5%.Applied to prepare catalytic reaction in neoprene is efficient 95%, effective control has been obtained by the reaction, low energy consumption, Low cost.
Embodiment 2
A kind of catalyst preparing neoprene, is made as follows：
A. by cathode copper be added smelting furnace in melting, while be passed through air, air be passed through rate be 3~5L/min, make to melt The oxygen content of body is in 0.05~0.15wt%；
B. melt enters atomising device, a diameter of 8~10mm of melt liquid stream, at the same be passed through high pressure water be atomized, High-pressure atomization hydraulic pressure is in 0.25Mpa~0.35Mpa, atomized water flow in 50~70L/min；
C. cooling collection powder：It is 320 to be atomized the difference in height of focal length cooling water ullage during the cooling collection powder ~500mm；
D. centrifugal dehydration is finally carried out, hydrogen, nitrogen reduction sintering, gradation sizing is added.
Copper bead powder size obtained above is 0.154mm~2mm, loose specific weight 5.0g/cm3~5.3 g/cm3, oxygen Content is 0.1~0.2%.Applied to preparing, catalytic reaction in neoprene is efficient 94%, effective control, low energy has been obtained by the reaction Consumption, low cost.
Embodiment 3
A kind of catalyst preparing neoprene, is made as follows：
A. by cathode copper be added smelting furnace in melting, while be passed through air, air be passed through rate be 3~5L/min, make to melt The oxygen content of body is in 0.32~0.4wt%；
B. melt enters atomising device, a diameter of 12~13mm of melt liquid stream, at the same be passed through high pressure water be atomized, High-pressure atomization hydraulic pressure is in 0.4Mpa~0.5Mpa, atomized water flow in 80~100L/min；
C. cooling collection powder：It is 550 to be atomized the difference in height of focal length cooling water ullage during the cooling collection powder ~700mm；
D. centrifugal dehydration is finally carried out, hydrogen, nitrogen reduction sintering, gradation sizing is added.
Copper bead powder size obtained above is 2mm~3mm, loose specific weight 5.2g/cm3~5.5 g/cm3, oxygen content It is 0.2~0.4%.Applied to preparing, catalytic reaction in neoprene is efficient 97.5%, effective control, low energy has been obtained by the reaction Consumption, low cost.

Claims (1)

1. a kind of catalyst preparing neoprene, is made as follows：
A. by cathode copper be added smelting furnace in melting, while be passed through air, air be passed through rate be 3~5L/min, make melt Oxygen content is in 0.2~0.3wt%；
B. melt enters atomising device, a diameter of 11~13mm of melt liquid stream, at the same be passed through high pressure water be atomized, high pressure Atomized water is pressed in 0.05Mpa~0.15Mpa, atomized water flow in 72~95L/min；
C. cooling collection powder：The difference in height that focal length cooling water ullage is atomized during the cooling collection powder is 200~ 300mm；
D. centrifugal dehydration is finally carried out, hydrogen, nitrogen reduction sintering, gradation sizing is added；
The copper bead powder size obtained is 3mm~5mm, loose specific weight 5.4g/cm3~5.6 g/cm3, oxygen content 0.3 ~0.5%.
CN201610305635.1A 2011-11-28 2011-11-28 A kind of catalyst preparing neoprene Active CN105903974B (en)

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CN201110384351.3A CN103128292B (en) 2011-11-28 2011-11-28 A kind of copper pearl Catalysts and its preparation method

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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH07138619A (en) * 1993-11-17 1995-05-30 Taiheiyo Kinzoku Kk Production of 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
CN1552546A (en) * 2003-05-29 2004-12-08 中科铜都粉体新材料股份有限公司 Method for preparing copper powder by water atomization method
CN101837460A (en) * 2010-04-26 2010-09-22 吴棕洋 Method for preparing low-apparent-density copper powder through water atomization

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
KR20070024418A (en) * 2005-08-25 2007-03-02 하리마 카세이 가부시키가이샤 Method for producing snznnicu based solder powder and snznnicu based 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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07138619A (en) * 1993-11-17 1995-05-30 Taiheiyo Kinzoku Kk Production of 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
CN1552546A (en) * 2003-05-29 2004-12-08 中科铜都粉体新材料股份有限公司 Method for preparing copper powder by water atomization method
CN101837460A (en) * 2010-04-26 2010-09-22 吴棕洋 Method for preparing low-apparent-density copper powder through water atomization

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
雾化法生产铜粉;Erhard Klar 等;《中国有色冶金》;19900828(第4期);第51页左下第1-2段 *

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CN103128292A (en) 2013-06-05
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