CN1111448C - Process for regenerating palladium catalyst - Google Patents
Process for regenerating palladium catalyst Download PDFInfo
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- CN1111448C CN1111448C CN 00126716 CN00126716A CN1111448C CN 1111448 C CN1111448 C CN 1111448C CN 00126716 CN00126716 CN 00126716 CN 00126716 A CN00126716 A CN 00126716A CN 1111448 C CN1111448 C CN 1111448C
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- palladium catalyst
- catalyst
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Abstract
The present invention relates to a regenerating method of a palladium catalyst, which is characterized in that a waste catalyst put into a stainless steel sieve is cleaned by hot water approach to 100DEGC; a part of organic impurities and the bulk of inorganic impurities are washed off; then, the waste catalyst is dried and put into a roasting furnace to be roasted; finally, the waste catalyst is discharged, cooled by wind and packed. When the present invention is used, the service life of the palladium catalyst of a fixed bed can be prolonged for more than two years; each batch of the palladium catalyst is five tons and regenerating cost is 2000 yuan per ton; the service life of the palladium catalyst is prolonged for two years, and the regenerating cost of the batch of palladium catalyst is: 5 tons * 30, 000 yuan/ton * 2/3-5 tons * 2, 000 yuan/ton = 990, 000 yuan according to the transform that the service life of a new palladium catalyst is three years. Thus, natural resources can be effectively used and production cost is reduced.
Description
Technical field
The present invention relates to a kind of palladium catalyst renovation process.
Background technology
The palladium catalyst regeneration techniques is one of key technology during the anthraquinone hydrogen peroxide of fixed-bed palladium catalysts is produced.Fixed-bed palladium catalysts regeneration techniques commonly used is to use heater reclaim, promptly utilize the high temperature (100 ℃～120 ℃) of low pressure water vapor, organic impurities and the inorganic impurity that the dissolubility of condensed water will be adsorbed on the palladium catalyst to dissolve, rinse well, the micropore of mediation catalyst base, thus catalyst activity is restored.This process is the unique renovation process of all fixed-bed palladium catalysts of China, is a kind of renovation process of classics, and it is simple, economical, effective that main cause is.Briefly, it has only needed certain hour in the logical continuously people's fixed-bed palladium catalysts of certain flow (condensate liquid that flows out with the outlet condenser measures) low-pressure steam just.Table one is that our the group analysis data in once testing contrast (1), from this group comparative analysis result as can be seen: the palladium content is very little and content remnant sharply rises, therefore the inefficacy master of palladium catalyst is if it were not for the loss because of active component in the catalyst, but because certain reason active component can not play a role, that is classical steam method of reproduction can not make it bring back to life.
| ?K 2O | ?0.043 | ?0.21 |
| ?Cl | ?0.018 | Do not have |
| ?Al 2O 3 | ?93.27 | ?75.04 |
| Remnant | Do not have | ?24.32 |
Activity once was not so good as once after the defective of this technology of the new and old catalyst analysis contrast of table one wt% of unit was to regenerate, after repeatedly regenerating (approximately every batch was used about 3 years), do not reached technological requirement, thought that just this catalyst life arrives, can only announce to have scrapped.
Summary of the invention
The purpose of this invention is to provide a kind of palladium catalyst renovation process.
The objective of the invention is to realize in the following way: use hot water that the dead catalyst in the stainless steel sift of packing into is cleaned near 100 ℃, the part of flush away organic impurities and most inorganic impurity, drain then, enter roasting in the roaster, temperature progressively is consolidated to 650 ℃, then under this temperature, keep coming out of the stove at last → air-cooled → pack more than four hours.
The life-saving in service life that adopts the present invention can prolong fixed-bed palladium catalysts reached more than 2 years, 5 tons of the every batch of catalyst, 2000 yuan per ton of regeneration cost, life-saving 2 years, by the conversion of 3 years new palladium catalyst life-spans, this batch regeneration is worth and is: 2000 yuan/ton=990,000 yuan of 300,000 yuan of/ton * 2/3-5 of 5 tons of * ton *, can effectively utilize natural resources, and reduce production costs.
The specific embodiment
Loading position: T101 III joint
Loadings: 2.5 tons
Running time: 20 days
Hydrogen is imitated control: y
H=4.854g/L
Inlet temperature: rise to 70 ℃ by 54.4 ℃
Outlet temperature: rise to 74 ℃ by 64 ℃
(be here into 55 ℃ of bed tempertaures, base pressure 0.25MPa) hydrogenation efficiency reaches 4.5g/L under the regular service conditions, and activity is improved significantly.
Claims (1)
1, a kind of palladium catalyst renovation process, it is characterized in that: use hot water that the dead catalyst in the dress people stainless steel sift is cleaned near 100 ℃, the part of flush away organic impurities and most inorganic impurity, drain then, enter roasting in the roaster, temperature progressively is consolidated to 650 ℃, then under this temperature, keeps more than four hours, come out of the stove at last, air-cooled, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126716 CN1111448C (en) | 2000-12-01 | 2000-12-01 | Process for regenerating palladium catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126716 CN1111448C (en) | 2000-12-01 | 2000-12-01 | Process for regenerating palladium catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1356171A CN1356171A (en) | 2002-07-03 |
| CN1111448C true CN1111448C (en) | 2003-06-18 |
Family
ID=4592014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00126716 Expired - Fee Related CN1111448C (en) | 2000-12-01 | 2000-12-01 | Process for regenerating palladium catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1111448C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337753C (en) * | 2004-10-22 | 2007-09-19 | 中国石油化工股份有限公司 | Method for reproducing catalyst by supercritical fluid |
| CN101584989B (en) * | 2009-07-13 | 2011-02-09 | 北京化工大学 | Regeneration method of catalyst for preparing low carbon olefin hydrocarbon by methanol |
| CN104399492A (en) * | 2014-11-17 | 2015-03-11 | 张立军 | Palladium catalyst roasting regenerating process |
| CN104975182A (en) * | 2015-07-14 | 2015-10-14 | 河南中原黄金冶炼厂有限责任公司 | Pretreatment method for recovering gold and silver from waste water adsorbing gold-carried carbon for precious metal refining |
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2000
- 2000-12-01 CN CN 00126716 patent/CN1111448C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1356171A (en) | 2002-07-03 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM + CHEMICAL CORPORATION Free format text: FORMER OWNER: BALIN BRANCH CORP. SINOPEC Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Chaoyang District, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Address before: Nanhu Avenue, Yueyang, Hunan Patentee before: Baling Branch, China Petro-Chemical Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030618 Termination date: 20191201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |