CN103128293A - Prepared method of metal bead catalyst used for producing chloroprene rubber - Google Patents
Prepared method of metal bead catalyst used for producing chloroprene rubber Download PDFInfo
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- CN103128293A CN103128293A CN2011103843778A CN201110384377A CN103128293A CN 103128293 A CN103128293 A CN 103128293A CN 2011103843778 A CN2011103843778 A CN 2011103843778A CN 201110384377 A CN201110384377 A CN 201110384377A CN 103128293 A CN103128293 A CN 103128293A
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- atomization
- water atomization
- reaction
- chloroprene rubber
- metal bead
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Abstract
The invention provides a prepared method of a metal bead catalyst which utilizes a water atomization method. The water atomization method comprises the steps of smelting, high pressure water atomization and dewatering. The prepared method is characterized in that a diameter of melt liquid flow after the step of the smelting in the process of the high pressure water atomization is probably 8mm-13mm, high pressure atomization hydraulic pressure is 0.05Mpa-0.5Mpa, and atomization water-carrying capacity is controlled in 50-100L\min. A superficial area of a metal bead particle is larger, a catalyst used for preparing the chloroprene rubber improves reaction efficiency, reaction speed can be controlled, effective reaction control improves quality of the chloroprene rubber, consumption of advanced retort is reduced largely, cost is saved, environment is improved, and energy is saved.
Description
Technical field
The present invention relates to a kind of preparation method of catalyst, be specifically related to the preparation method that a kind of neoprene is produced used catalyst.
Background technology
In neoprene production, catalytic reaction is very important operation, is determining to a great extent the output that neoprene is produced, the serviceability of cost and neoprene.Mainly use the electrolysis copper coin as the additive of catalytic reaction during now domestic neoprene is produced, but there is obvious defective in the electrolysis copper coin as additive:
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, the higher order reaction tank is due to the shock that is subject to irregular electrolysis copper coin, be easy to anticorrosive coat is damaged, due to the CL that exists severe corrosive in reaction raw materials, in case the corrosion-resistant coating of retort is destroyed, retort will cause and scrap, and greatly increase production cost.
Water atomization is produced the trend that powder is powder metallurgy powder process development, is industrial production energy-saving and environmental protection, efficient, high performance requirement.Be 03136699.6 to disclose a kind of method of preparing copper powder by water atomization as number of patent application, comprise the steps such as melting, atomizing, dehydration, reduction sintering, screening, make loose specific weight lower than 2.9g/cm
3Copper powder of low apparent density.Present water atomization production of copper powder both domestic and external from the control that is designed into technique of equipment, is the requirement that is adapted to powder metallurgy industry fully, and the requirement of powder-product is: powder size is controlled at less than 0.074mm; Loose specific weight is controlled and is trended towards to little direction research and produce, and pine is than being controlled at lower than 3.00g/cm
3Low oxygen content; High powder compaction performance etc.
Summary of the invention
The object of the present invention is to provide a kind of preparation method who is exclusively used in the copper pearl catalyst of preparation neoprene, the copper pearl catalyst grain size that the method makes is large, catalytic reaction efficient is high.
The objective of the invention is to be achieved through the following technical solutions:
A kind of preparation method of copper pearl catalyst, adopt water atomization, described water atomization comprises the steps such as melting, hydraulic atomized, dehydration, it is characterized in that: in described hydraulic atomized process through the melt liquid flow diameter of melting step at 8～13mm, high-pressure atomization hydraulic pressure at 0.05Mpa～0.5Mpa, atomized water flow at 50～100L/min.
In said method, all the other steps are all undertaken by the water atomization conventional steps, and the copper pearl powder size that makes can reach 0.1mm～0.2mm, and loose specific weight is 4.5g/cm
3～5.1 g/cm
3, oxygen content is 0.05～0.09%.
Copper pearl catalyst of the present invention is applied to prepare in neoprene, compares with electrolysis copper coin catalyst, and course of reaction easily realizes dynamic effectively control; Its granularity is large in addition, specific area during than Datong District oxygen content higher, saved the energy thereby more easily absorb, hold reaction heat, make that the reaction hear rate is lower, the reaction milder, catalytic reaction efficient is higher, can reach 85%～87%; Copper pearl catalyst can not exist and make the higher order reaction tank be subject to the irregular shock that is similar to the electrolysis copper coin simultaneously, thus the destruction of causing anticorrosive coat.In a word, copper pearl catalyst of the present invention is applied to prepare and has realized in neoprene that reaction efficiency is high, reaction has obtained effective control, low energy consumption, low cost.
Atomization process involved in the present invention is to control the granularity of copper pearl, thereby has affected the specific area of copper pearl.
Preferably, in above-mentioned hydraulic atomized process through the melt liquid flow diameter of melting step at 9～11mm, high-pressure atomization hydraulic pressure at 0.25Mpa～0.36Mpa, atomized water flow at 50～68L/min; The copper pearl powder size that makes can reach 0.1mm～0.2mm, and loose specific weight is 4.5g/cm
3～5.1 g/cm
3, oxygen content is 0.05～0.07%, can be up to 87% for the preparation of the catalytic efficiency of neoprene.
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 the production of powder used in metallurgy water atomization copper powder fully, and definite the employing with water atomization copper powder of process conditions produced antipodal thinking on technique.This copper pearl is succeeded in developing, promoted neoprene production technical merit, saved cost, integrated following some:
1. the copper pearl catalyst granules surface area that makes of the inventive method is large, improved catalytic reaction efficient, can reach 85%～87%, and reaction speed is controlled.
2. effectively the quality that has improved neoprene is controlled in reaction.
3. the consumption decrease of higher order reaction tank, save cost.
4. heat loss must lack, and has improved environment, has saved the energy.
The specific embodiment
Below by embodiment, the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further illustrated; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1
A kind of preparation method of copper pearl catalyst, adopt water atomization, comprise the steps such as melting, hydraulic atomized, dehydration, in described hydraulic atomized process through the melt liquid flow diameter of melting step at 10mm, high-pressure atomization hydraulic pressure at 0.32Mpa, atomized water flow at 58L/min, all the other steps water atomization are routinely carried out.The copper pearl powder size that makes can reach 0.2mm, and loose specific weight is 5.1g/cm
3, oxygen content is 0.07%, for the preparation of the catalytic efficiency of neoprene can be up to 87%, reaction obtained effective control, low energy consumption, low cost.
Embodiment 2
A kind of preparation method of copper pearl catalyst, adopt water atomization, comprise the steps such as melting, hydraulic atomized, dehydration, in described hydraulic atomized process through the melt liquid flow diameter of melting step at 13mm, high-pressure atomization hydraulic pressure at 0.5Mpa, atomized water flow at 50L/min, all the other steps water atomization are routinely carried out.The copper pearl powder size that makes can reach 0.15mm, and loose specific weight is 4.8g/cm
3, oxygen content is 0.05%, for the preparation of the catalytic efficiency of neoprene can be up to 86%, reaction obtained effective control, low energy consumption, low cost.
Embodiment 3
A kind of preparation method of copper pearl catalyst, adopt water atomization, comprise the steps such as melting, hydraulic atomized, dehydration, in described hydraulic atomized process through the melt liquid flow diameter of melting step at 8mm, high-pressure atomization hydraulic pressure at 0.05Mpa, atomized water flow at 100L/min, all the other steps water atomization are routinely carried out.The above-mentioned copper pearl powder size that makes is 0.1mm, and loose specific weight is 4.5g/cm
3, oxygen content is 0.09%.Be applied to prepare in neoprene reaction efficiency up to 85%, reaction obtained effective control, low energy consumption, low cost.
Claims (2)
1. the preparation method of a copper pearl catalyst, adopt water atomization, described water atomization comprises the steps such as melting, hydraulic atomized, dehydration, and it is characterized in that: the melt liquid flow diameter through the melting step in described hydraulic atomized process probably preferably is controlled at about 50～100L/min at 8～13mm, high-pressure atomization hydraulic pressure at 0.05Mpa～0.5Mpa, atomized water flow.
2. preparation method as claimed in claim 1 is characterized in that: in described hydraulic atomized process through the melt liquid flow diameter of melting step at 9～11mm, high-pressure atomization hydraulic pressure at 0.25Mpa～0.36Mpa, atomized water flow at 50～68L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103843778A CN103128293A (en) | 2011-11-28 | 2011-11-28 | Prepared method of metal bead catalyst used for producing chloroprene rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103843778A CN103128293A (en) | 2011-11-28 | 2011-11-28 | Prepared method of metal bead catalyst used for producing chloroprene rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103128293A true CN103128293A (en) | 2013-06-05 |
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| CN2011103843778A Pending CN103128293A (en) | 2011-11-28 | 2011-11-28 | Prepared method of metal bead catalyst used for producing chloroprene rubber |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1824435A (en) * | 2006-04-07 | 2006-08-30 | 郭德林 | Spray method for preparing low apparent density bronze powder |
| JP2011006740A (en) * | 2009-06-25 | 2011-01-13 | Mitsui Mining & Smelting Co Ltd | Copper powder for conductive paste, and conductive paste |
| 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 |
-
2011
- 2011-11-28 CN CN2011103843778A patent/CN103128293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1824435A (en) * | 2006-04-07 | 2006-08-30 | 郭德林 | Spray method for preparing low apparent density bronze powder |
| JP2011006740A (en) * | 2009-06-25 | 2011-01-13 | Mitsui Mining & Smelting Co Ltd | Copper powder for conductive paste, and conductive paste |
| 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 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130605 |