CN108479730A - A kind of adsorbent of catalyst and application thereof - Google Patents
A kind of adsorbent of catalyst and application thereof Download PDFInfo
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- CN108479730A CN108479730A CN201810337914.5A CN201810337914A CN108479730A CN 108479730 A CN108479730 A CN 108479730A CN 201810337914 A CN201810337914 A CN 201810337914A CN 108479730 A CN108479730 A CN 108479730A
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- adsorbent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a kind of adsorbents and its application method for homogeneous catalyst.Specific method is that by preparation there is the high performance resin of sulfur-bearing group to be used as adsorbent, selective absorption can be carried out to the noble metal component in homogeneous catalyst under 300 degrees Celsius in room temperature, by alkali cleaning, the adsorbent is desorbed, and realizes recycling for noble metal.
Description
Technical field
The present invention relates to technical field of organic chemistry, it is related to a kind of adsorbent of catalyst and application thereof.
Background technology
Noble metal is due to the value and unique physics, chemical property of itself, in sections such as electronic apparatus, aerospaces
Skill and industrial circle are valued by the people.For the China for relying on import as most of noble metal, in the manufacture of electronic equipment
Technique and all may include noble metal in the technique of precious metal electroplating, in the waste liquid of product cleaning solution, it is many to use report
The useless material containing noble metal arbitrarily abandons, and for economic benefit and environmental protection angle, is required for recycling noble metal.No
These noble metals are recycled or handle well, not only causing scarce resource waste that will also pollute the environment influences organism
Health.Noble metal is easy to make protein denaturation after as a heavy metal species entering in organism, destroys cell wall, changes cell
Permeability, the activity etc. for inhibiting enzyme, effective recycling can be very good to solve the problems, such as this, not only saved resource but also subtracted
Pollution is lacked.So the noble metal method in research reclaim liquid phase is very significant.
The main method that precious metal ion detaches in liquid phase has：Ion-exchange, osmosis, active carbon adsorption, chemistry
The precipitation method, extraction, electroosmose process, membrane filter technique and absorption method etc..But these methods are inconvenient, of high cost, efficiency not
Height, sustainability be not strong.It can be solved these problems using absorption resin, but adsorb resin in organic solvent system not making
With, while when a variety of noble metals mix, the noble metal of the mixing of adsorption recovery, it is difficult to which noble metal is separately separated out.
In conclusion exploitation new catalyst, realizes the industrialized production of catalyst, develop advanced with friendly process
Technology, production high quality, inexpensive amino anthraquinones, is necessary.
Invention content
Problem to be solved by this invention is that in view of the deficiencies of the prior art the present invention provides a kind of for hydrogenating abietic acid
The adsorbent of homogeneous catalyst and preparation method thereof and application method, the adsorbent can carry out selective absorption to metal,
It by alkali cleaning or burns the adsorbent and is desorbed, realize recycling for noble metal.
In order to solve the above technical problems, first aspect present invention provides a kind of adsorbent of catalyst, by using benzene
The dihalo object of ring polymerize to obtain with sulphion under certain temperature and pressure, the amount of the dihalo object and sulphion substance of phenyl ring
Than being 1: 1~10.
Currently preferred technical solution, above-mentioned reaction system carry out in organic solvent, and the organic solvent is selected from energy
The polar solvent of the dissolving dihalo object containing phenyl ring.
Currently preferred technical solution, the certain temperature range are 120~280 DEG C, and the certain pressure is ranging from
0.1~6MPa
Currently preferred technical solution, the dihalo object of phenyl ring are 1: 1~5, preferably 1 with the amount ratio of sulphion substance
: 1~3.
The dihalo object of quantitative sulphion and phenyl ring is dissolved in organic solvent by currently preferred technical solution,
Temperature 200~240 reacts 2 hours under 2~4MPa of pressure, washes away solvent, using polar solvent soaked overnight, obtain adsorbent.
Currently preferred technical solution, the homogeneous catalyst adsorbent are powder, granular, fiber.
The polar solvent is selected from alcohols, organic acid, halides, amine, heterocyclic compound etc., and the alcohols preferably is selected from 6
A C alcohols below, preferably methanol, ethyl alcohol, propyl alcohol, butanol；The organic acid is selected from 6 C organic acids below, preferably
For formic acid, acetic acid, propionic acid, butyric acid；The halides are dissolved liquid form halides.
Second aspect of the present invention provides the purposes of above-mentioned catalyst adsorbent, adsorbs noble metal, noble metal in the liquid phase
Concentration 1 is to 10000ppm.
Currently preferred technical solution, the homogeneous catalyst adsorbent is after adsorbing noble metal, under alkaline condition
It is desorbed, to realize recycling for noble metal.
Currently preferred technical solution, the homogeneous catalyst adsorbent burn the recycling that ashing carries out metal.
Currently preferred technical solution, the adsorbent, to 300 DEG C of uses, especially adsorb rosin (abietic acid) in room temperature
Selective absorption is carried out to the noble metal in rosin in hydrogenation reaction system.
The noble metal includes but not limited to platinum, palladium, rhodium, iridium, ruthenium, gold, silver.
The reaction of rosin (abietic acid) hydrogenation needs to use catalyst, preferably homogeneous catalyst, but has separation again using
The problem of, and be solid due to hydrogenating abietic acid at 160 DEG C or less, so itself proposes heat safe need to adsorbent again
It asks, the inorganic adsorbent poor selectivity generally used, the selective good but not resistance to high temperature of resinae adsorbent.Because of making for the invention
Use the resin with sulfur-containing group as adsorbent, orientation recycling noble metal is necessary.
The present invention the phosphorous porous material of adsorbent can in the liquid phase adsorption concentration 1 to 10000ppm concentration your gold
Belong to, it can be by precious metal adsorption present in liquid phase to 1ppm or less.
Specific implementation mode
In order to make it easy to understand, the present invention will be described in detail by specific embodiment below.It needs to refer in particular to
Go out, these descriptions are only exemplary description, and are not meant to limit the scope of the invention.Opinion according to this specification
It states, many variations of the invention, change will be apparent from for those skilled in the art.
Embodiment 1
By the amount of substance than 1:1.2 paracide and anhydrous sodium sulfide are dissolved in N-Methyl pyrrolidone, at 240 DEG C,
It is reacted 2 hours under 4MPa pressure, washes away solvent, using ethyl alcohol soaked overnight, obtain powder sorbent.
Embodiment 2
150g molten states rosin and dry weight are added for the catalyst of 15mg in reactor, is mixed evenly, is warming up to
It 180 DEG C, reacts under the Hydrogen Vapor Pressure of 4.0MPa and no longer changes to Hydrogen Vapor Pressure.The suction in embodiment 1 is added after reaction
Attached dose is stirred 2 hours at 150 DEG C, after be obtained by filtration product, product is the hydrogenation pine of dehydrogenation abietic acid≤10%, abietic acid≤2%
Perfume (or spice), to product carry out X-fluorescence detection, wherein bullion content less than detection lower limit, noble metal include platinum, palladium, rhodium, iridium, ruthenium,
Gold.
Embodiment 3
Adsorbent in embodiment 2 is added in the akaline liquid of 100mlpH=9~12,80 DEG C are stirred 2~12 hours,
Filtering, filtrate measure bullion content 0.95% or more using ICP, and removal efficiency is 95% or more.
Embodiment 4
Adsorbent in embodiment 2 is roasted, metallo-metric survey is carried out to ash content after burning, ash content contains 80% or more
Precious metal powder.
Embodiment 5
Adsorbent in embodiment 1 is molded, using wire drawing machine, fiber is made, is soaked using N-Methyl pyrrolidone
Bubble obtains Fibriform adsorbents after 24 hours.
Embodiment 6
150g molten states rosin and dry weight are added for the catalyst of 15mg in reactor, is mixed evenly, is warming up to
It 180 DEG C, reacts under the Hydrogen Vapor Pressure of 4.0MPa and no longer changes to Hydrogen Vapor Pressure.The fibre in embodiment 5 is added after reaction
Dimension adsorbent stir 2 hours at 150 DEG C, after be obtained by filtration product, product is the hydrogen of dehydrogenation abietic acid≤10%, abietic acid≤2%
Change rosin, to product carry out X-fluorescence detection, wherein bullion content less than detection lower limit, noble metal include platinum, palladium, rhodium, iridium,
Ruthenium, gold.
Embodiment 7
Adsorbent in embodiment 6 is added in the akaline liquid of 100mlpH=9~12,80 DEG C are stirred 2~12 hours,
Filtering, filtrate measure bullion content 0.95% or more using ICP, and removal efficiency is 95% or more.
Embodiment 8
By the amount of substance than 1:1.5 paradibromobenzenes and anhydrous magnesium sulfide are dissolved in methanol, anti-under 250 DEG C, 2MPa pressure
It answers 2 hours, washes away solvent, using methanol soaked overnight, obtain powder sorbent.
Embodiment 9
By the amount of substance than 1:3 paradibromobenzenes and anhydrous sodium sulfide are dissolved in butyric acid, react 2 under 250 DEG C, 2MPa pressure
Hour, solvent is washed away, using ethyl alcohol soaked overnight, obtains powder sorbent.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow the person skilled in the art to be
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of adsorbent of catalyst, which is characterized in that its by by the dihalo object of phenyl ring and sulphion in certain temperature
It is obtained with polymerization under pressure, the dihalo object of phenyl ring is 1: 1~10 with the amount ratio of sulphion substance.
2. adsorbent according to claim 1, which is characterized in that above-mentioned reaction system carries out in organic solvent, described
Organic solvent be selected from can dissolve described in the dihalo object containing phenyl ring polar solvent, polar solvent is selected from alcohols, organic acid, halogenated
Object, amine, heterocyclic compound.
3. adsorbent according to claim 1, which is characterized in that the certain temperature range is 120~280 DEG C, described
Certain pressure ranging from 0.1~6MPa.
4. adsorbent according to claim 1, which is characterized in that being dissolved in quantitative sulphion and aromatic compound has
In solvent, a period of time is reacted at 200~240 DEG C of temperature, 2~4MPa of pressure, solvent is washed away, was impregnated with polar solvent
Night obtains adsorbent.
5. the purposes of claim 1-4 any one of them catalyst adsorbents, which is characterized in that your gold adsorbed in the liquid phase
Belong to.
6. purposes according to claim 5, which is characterized in that the adsorbent is in room temperature to 300 DEG C of uses.
7. purposes according to claim 5, which is characterized in that the adsorbent is used in rosin hydrogenation reaction system to pine
Noble metal in perfume (or spice) carries out selective absorption.
8. purposes according to claim 5, which is characterized in that the catalyst adsorbent is after adsorbing noble metal, in alkali
It is desorbed under the conditions of property.
9. purposes according to claim 5, which is characterized in that the catalyst adsorbent burns ashing and carries out returning for metal
It receives.
10. purposes according to claim 5, which is characterized in that the noble metal includes platinum, palladium, rhodium, iridium, ruthenium, gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337914.5A CN108479730A (en) | 2018-04-16 | 2018-04-16 | A kind of adsorbent of catalyst and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810337914.5A CN108479730A (en) | 2018-04-16 | 2018-04-16 | A kind of adsorbent of catalyst and application thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102664A (en) * | 1985-04-01 | 1986-09-24 | 四川大学 | A kind of synthetic method of linear polyphenylthioether of high molecular weight |
| CN1683072A (en) * | 2005-03-02 | 2005-10-19 | 江苏工业学院 | Novel high effective noble metal adsorbent and its preparing method |
| CN102397781A (en) * | 2010-09-15 | 2012-04-04 | 江南大学 | Microspheric precious metal adsorbent and preparation method thereof |
| CN105294890A (en) * | 2015-11-03 | 2016-02-03 | 浙江工商大学 | Method for recycling silver ion from sewer sludge by using novel chelate resin |
| CN105524267A (en) * | 2016-01-11 | 2016-04-27 | 天津师范大学 | Random polymers with framework containing ammonium and phosphonic acid groups, and preparation method thereof |
| CN105860077A (en) * | 2016-04-12 | 2016-08-17 | 郑州大学 | Production method of polyphenylene sulfide-based adsorption separation resin |
| CN106890628A (en) * | 2017-02-07 | 2017-06-27 | 江南大学 | A kind of organic polymer adsorbent for removing precious metal ion in pharmaceutical synthesis system and preparation method thereof |
| JP6187969B2 (en) * | 2013-09-18 | 2017-08-30 | 日立化成テクノサービス株式会社 | Adsorbent |
| CN107501553A (en) * | 2017-09-30 | 2017-12-22 | 四川金和成科技有限公司 | A kind of preparation method of the polyphenylene sulfide of no catalyst |
-
2018
- 2018-04-16 CN CN201810337914.5A patent/CN108479730A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102664A (en) * | 1985-04-01 | 1986-09-24 | 四川大学 | A kind of synthetic method of linear polyphenylthioether of high molecular weight |
| CN1683072A (en) * | 2005-03-02 | 2005-10-19 | 江苏工业学院 | Novel high effective noble metal adsorbent and its preparing method |
| CN102397781A (en) * | 2010-09-15 | 2012-04-04 | 江南大学 | Microspheric precious metal adsorbent and preparation method thereof |
| JP6187969B2 (en) * | 2013-09-18 | 2017-08-30 | 日立化成テクノサービス株式会社 | Adsorbent |
| CN105294890A (en) * | 2015-11-03 | 2016-02-03 | 浙江工商大学 | Method for recycling silver ion from sewer sludge by using novel chelate resin |
| CN105524267A (en) * | 2016-01-11 | 2016-04-27 | 天津师范大学 | Random polymers with framework containing ammonium and phosphonic acid groups, and preparation method thereof |
| CN105860077A (en) * | 2016-04-12 | 2016-08-17 | 郑州大学 | Production method of polyphenylene sulfide-based adsorption separation resin |
| CN106890628A (en) * | 2017-02-07 | 2017-06-27 | 江南大学 | A kind of organic polymer adsorbent for removing precious metal ion in pharmaceutical synthesis system and preparation method thereof |
| CN107501553A (en) * | 2017-09-30 | 2017-12-22 | 四川金和成科技有限公司 | A kind of preparation method of the polyphenylene sulfide of no catalyst |
Non-Patent Citations (4)
| Title |
|---|
| 刘自力等: "《林产化工产品生产技术》", 31 May 2005, 江西科学技术出版社 * |
| 康忠镕等: "在酸性介质中聚苯硫醚对钯的吸附行为", 《贵金属》 * |
| 李鹏等: "《贵金属材料与工艺》", 31 August 2015, 中国地质大学出版社 * |
| 西鹏等: "《高技术纤维概论》", 31 December 2015, 中国纺织出版社 * |
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Application publication date: 20180904 |