CN101612576A - A kind of synthesis technique of cobalt manganese binary liquid catalyst - Google Patents
A kind of synthesis technique of cobalt manganese binary liquid catalyst Download PDFInfo
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- CN101612576A CN101612576A CN200910065212A CN200910065212A CN101612576A CN 101612576 A CN101612576 A CN 101612576A CN 200910065212 A CN200910065212 A CN 200910065212A CN 200910065212 A CN200910065212 A CN 200910065212A CN 101612576 A CN101612576 A CN 101612576A
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Abstract
A kind of synthesis technique of cobalt manganese binary liquid catalyst is that to obtain cobalt manganese content mol ratio after assorted, sedimentation, the can be the cobalt manganese binary liquid catalyst of 4.6-11 through preparing burden, synthesizing, take off; Cobalt manganese binary liquid catalyst has active height, reliable in quality, good stability; Technology quality index is lower than the solid index, and is easy to use.Can not only reduce the preparation link of using solid catalyst, save labour cost, potential safety hazards such as pipeline obstruction that causes because of impurity in the elimination solid catalyst process for preparation and unstability, and can reduce the raw and auxiliary material unit consumption, help reducing use cost, increase economic efficiency.
Description
Technical field
The present invention relates to a kind of synthesis technique of liquid catalyst, especially a kind of synthesis technique of cobalt manganese binary liquid catalyst.
Background technology
At present, existing P TA (p-phthalic acid) is in production process, and oxidation unit is selected is cobalt acetate, manganese acetate solid catalyst.Also different according to different its proportionings of technology, but take which kind of proportioning all to try hard to improve catalyst activity, reduce raw and auxiliary material consumption, to reach cost efficiency.The cobalt acetate that present domestic PTA device oxidation unit generally adopts, manganese acetate solid catalyst lump in storing process easily, sneak into foreign material in the process for preparation easily, land loss, dissolve the easy blocking pipeline of foreign material insufficient and that bring into, can cause potential safety hazard to production process.Solid catalyst atomic weight proportioning is wayward in artificial process for preparation simultaneously, make activity of such catalysts can not reach optimum state, influenced the reaction speed of oxidation to a certain extent, increased PX, the acetic acid combustible loss has reduced the overall economic efficiency of PTA device.
Summary of the invention
The present invention is for solving existing solid catalyst defective in use, a kind of synthesis technique of cobalt manganese binary liquid catalyst is provided, the technical scheme of technical solution problem of the present invention is: to obtain cobalt manganese content mol ratio after assorted, sedimentation, the can be the cobalt manganese binary liquid catalyst of 4.6-11 through preparing burden, synthesizing, take off, and processing step of the present invention is:
Batching: metallic cobalt, manganese metal, cosolvent and water are prepared burden in proportion;
Synthetic: metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 5-10 hour under 20 ℃-120 ℃, normal pressure;
Take off assorted: reacted product is sent into through piping and is taken off assorted passage, removes the metal impurities that the inside is contained;
Sedimentation: reacted product takes off assorted back and enters settling tank by pipeline, natural subsidence at least 1 hour;
Can: can obtain cobalt manganese content mol ratio after the sedimentation is the cobalt manganese binary liquid catalyst of 4.6-11, carries out can.
Beneficial effect of the present invention: cobalt manganese binary liquid catalyst has active height, reliable in quality, good stability; Technology quality index is lower than the solid index, and is easy to use.Can not only reduce the preparation link of using solid catalyst, save labour cost, potential safety hazards such as pipeline obstruction that causes because of impurity in the elimination solid catalyst process for preparation and unstability, and can reduce the raw and auxiliary material unit consumption, help reducing use cost, increase economic efficiency.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment one
Metallic cobalt, manganese metal, cosolvent and water are prepared burden in proportion; Metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 5-10 hour under 20 ℃-120 ℃, normal pressure; Reacted product is sent into through piping and is taken off assorted passage, removes the metal impurities that the inside is contained; Reacted product takes off assorted back and enters settling tank by pipeline, natural subsidence at least 1 hour; Can obtain cobalt manganese content mol ratio after the sedimentation is the cobalt manganese binary liquid catalyst of 4.6-11, carries out can.
Embodiment two
Metallic cobalt, manganese metal, cosolvent and water are prepared burden in proportion; Metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 6-9.5 hour under 40 ℃-110 ℃, normal pressure; Reacted product is sent into through piping and is taken off assorted passage, removes the metal impurities that the inside is contained; Reacted product takes off assorted back and enters settling tank by pipeline, natural subsidence at least 1 hour; Can obtain cobalt manganese content mol ratio after the sedimentation is the cobalt manganese binary liquid catalyst of 4.6-11, carries out can.
Embodiment three
Metallic cobalt, manganese metal, cosolvent and water are prepared burden in proportion; Metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 6-9 hour under 30 ℃-100 ℃, normal pressure; Reacted product is sent into through piping and is taken off assorted passage, removes the metal impurities that the inside is contained; Reacted product takes off assorted back and enters settling tank by pipeline, natural subsidence at least 1 hour; Can obtain cobalt manganese content mol ratio after the sedimentation is the cobalt manganese binary liquid catalyst of 4.6-11, carries out can.
Claims (4)
1, a kind of synthesis technique of cobalt manganese binary liquid catalyst comprises batching, synthesizes, takes off assorted, sedimentation, can; It is characterized in that:
Batching: metallic cobalt, manganese metal, cosolvent and water are prepared burden in proportion;
Synthetic: metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 5-10 hour under 20 ℃-120 ℃, normal pressure;
Take off assorted: reacted product is sent into through piping and is taken off assorted passage, removes the metal impurities that the inside is contained;
Sedimentation: reacted product takes off assorted back and enters settling tank by pipeline, natural subsidence at least 1 hour;
Can: can obtain cobalt manganese content mol ratio after the sedimentation is the cobalt manganese binary liquid catalyst of 4.6-11, carries out can.
2, the synthesis technique of a kind of cobalt manganese binary liquid catalyst according to claim 1 is characterized in that: settling tank is the anticorrosion settling tank.
3, the synthesis technique of a kind of cobalt manganese binary liquid catalyst according to claim 1 is characterized in that: synthetic: metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 6-9.5 hour under 40 ℃-110 ℃, normal pressure.
4, the synthesis technique of a kind of cobalt manganese binary liquid catalyst according to claim 1 is characterized in that: synthetic: metallic cobalt, manganese metal, cosolvent and water successively drop into synthesis reactor, and reaction is 6-9 hour under 30 ℃-100 ℃, normal pressure.
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| CN200910065212A CN101612576A (en) | 2009-06-18 | 2009-06-18 | A kind of synthesis technique of cobalt manganese binary liquid catalyst |
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| CN200910065212A CN101612576A (en) | 2009-06-18 | 2009-06-18 | A kind of synthesis technique of cobalt manganese binary liquid catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877989A (en) * | 2014-03-07 | 2014-06-25 | 烟台大学 | Preparation method and application of modified cobalt manganese binary metal oxide catalyst |
| CN107617445A (en) * | 2017-10-28 | 2018-01-23 | 浙江上虞利星化工有限公司 | Method for preparing cobalt-manganese-bromine aqueous solution by utilizing recovered cobalt and manganese |
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2009
- 2009-06-18 CN CN200910065212A patent/CN101612576A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877989A (en) * | 2014-03-07 | 2014-06-25 | 烟台大学 | Preparation method and application of modified cobalt manganese binary metal oxide catalyst |
| CN103877989B (en) * | 2014-03-07 | 2016-04-13 | 烟台大学 | A kind of preparation method of modified cobalt manganese binary metal oxide catalyst and application thereof |
| CN107617445A (en) * | 2017-10-28 | 2018-01-23 | 浙江上虞利星化工有限公司 | Method for preparing cobalt-manganese-bromine aqueous solution by utilizing recovered cobalt and manganese |
| CN107617445B (en) * | 2017-10-28 | 2019-12-27 | 浙江上虞利星化工有限公司 | Method for preparing cobalt-manganese-bromine aqueous solution by utilizing recovered cobalt and manganese |
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Application publication date: 20091230 |