CN104645928B - The preparation method of silver system mercury removal agent - Google Patents
The preparation method of silver system mercury removal agent Download PDFInfo
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- CN104645928B CN104645928B CN201310601228.1A CN201310601228A CN104645928B CN 104645928 B CN104645928 B CN 104645928B CN 201310601228 A CN201310601228 A CN 201310601228A CN 104645928 B CN104645928 B CN 104645928B
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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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0281—Sulfates of compounds other than those provided for in B01J20/045
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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
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
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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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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Abstract
The present invention provides a kind of preparation method of silver system mercury removal agent, belongs to mercury removal agent technical field.Comprise the following steps：（1）Prepare aqueous thiosulfate；（2）Prepare silver nitrate aqueous solution；（3）By the step（2）In silver nitrate aqueous solution be slowly dropped into the step（1）In aqueous thiosulfate in, and be stirred continuously, obtain silver thiosulfate maceration extract, be placed at lucifuge and preserve；（4）By carrier impregnation in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, leach, be dried to obtain silver system mercury removal agent.The mercury removal agent being prepared using the preparation method of silver system of the present invention mercury removal agent has the advantages of simple to operate, production cost is low, demercuration precision is high.
Description
Technical field
The present invention relates to a kind of preparation method of silver system mercury removal agent, belongs to mercury removal agent technical field.
Background technology
In such as natural gas, liquefied petroleum gas, liquid hydrocarbon feeds（Such as naphtha, condensate and distillate）In exist
A small amount of mercury, and the presence of mercury can cause problems with：Aluminium heater occurs amalgamation and is damaged；Make downstream unit
Expensive catalyst is poisoned, and substantially reduces its life-span；Pollute shipping container.In addition, mercury be in oil gas most important toxicant it
One, mercury can cause environmental pollution into air after oil gas burning, therefore above-mentioned material must remove mercury before the use.
Usually used mercury removal agent has silver sulfide mercury removal agent in the prior art.Such as american documentation literature US4094777 is public
Having opened a kind of comprising silver sulfide active component and can remove the presulfurization of the ionic mercury that contains in liquid hydrocarbons feedstocks, organic mercury
Absorbent, the preparation method of the silver sulfide active component contained in the absorbent are as follows：By 1kg aluminium ball carrier impregnation in
In the 600ml silver nitrate solution containing 3.2g, the product after dipping dries 4h at 80 DEG C and obtains the absorption containing silver oxide
Agent precursor；The absorbent precursor is vulcanized 5h at room temperature with hydrogen sulfide again, by oxidation silver compound vulcanization, be prepared and include
The absorbent of the presulfurization of silver sulfide active component.Above-mentioned technology first uses carrier impregnation nitric acid during preparing demercuration absorbent
Silver-colored solution, then impregnation product is dried, silver nitrate decomposes to obtain silver oxide, then the carrier that will be loaded with silver oxide in drying process
Vulcanization obtains the mercury removal agent containing silver sulfide active component.But in above-mentioned technology, in impregnation product drying process, silver nitrate
Obtained silver oxide poor activity is decomposed, in follow-up sulfidation, vulcanization effect is also poor, and the obtained original of mercury removal agent is prepared
Expect that utilization rate is low, production cost is high and demercuration precision is relatively low.Because silver nitrate is decomposed into silver oxide in maceration extract in above-mentioned technology
Poor activity, in order to improve the demercuration precision of mercury removal agent, above-mentioned technology is additionally added during mercury removal agent is prepared in maceration extract
240g copper nitrate, the active component of the copper sulfide that is obtained after vulcanization collectively as mercury removal agent is dried, and due to copper nitrate point
The cupric oxide that solution obtains activity it is also poor, therefore even if in the above-described techniques add copper nitrate after, be prepared with vulcanization
Copper, silver sulfide are relatively low collectively as the demercuration precision of the mercury removal agent of active component.Exist because above-mentioned technology prepares mercury removal agent
Operating procedures such as the dipping of multistep, vulcanization, therefore it is various operating procedure to be also present, the problem of complex process.
The content of the invention
The technical problems to be solved by the invention are the mercury removal agents being prepared in the prior art using silver nitrate maceration extract
Demercuration precision is low, complex process problem of preparation method, and then provide that a kind of demercuration precision is high, the simple silver system demercuration of technique
The preparation method of agent.
In order to solve the above-mentioned technical problem, the invention provides a kind of preparation method of silver system mercury removal agent, including following step
Suddenly：
（1）Prepare aqueous thiosulfate；
（2）Prepare silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution be slowly dropped into the step（1）In thiosulfate it is water-soluble
In liquid, and it is stirred continuously, obtains silver thiosulfate maceration extract, is placed at lucifuge and preserves；
（4）By carrier impregnation in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, drip
Go out, be dried to obtain silver system mercury removal agent.
In terms of molal quantity, the ratio of the thiosulfate and the silver nitrate addition is（3~6）：1.
The concentration of silver ion is 0.05~0.5mol/L in the maceration extract.
The step（3）In, the silver nitrate aqueous solution is slowly dropped into the thio sulphur with 12~120ml/min speed
In acid salt aqueous solution, and stirred rapidly with 30~300r/min speed.
The thiosulfate is any one in sodium thiosulfate, potassium thiosulfate, ATS (Ammonium thiosulphate), barium hyposulfite
Kind.
The particle diameter of the carrier is 1~5mm, pore volume is 0.3~0.9ml/g, specific surface area is 100~1000m2/g。
After the carrier is first handled one hour at 80~150 DEG C, then it is impregnated in silver thiosulfate maceration extract.
The step（4）In, the carrier after dipping dries 1~5h at 90~130 DEG C.
In mass, sulfide silver-colored in the mercury removal agent is 0.4~5%.
The preparation method of silver system of the present invention mercury removal agent has the following advantages that compared with prior art：
（1）In the preparation method of silver system of the present invention mercury removal agent, by aqueous thiosulfate and silver nitrate aqueous solution
Reaction, is prepared silver thiosulfate maceration extract, then by carrier impregnation after the maceration extract, silver thiosulfate can be made uniform
The surfaces externally and internally of carrier is carried on, then again by the carrier drying after dipping, on the one hand, be carried in drying process inside and outside carrier
Silver thiosulfate be decomposed into mercury removal agent active component silver sulfide, and on the other hand uniform load, is dried in carrier surfaces externally and internally
During can make moisture evaporation in carrier, so as to remain the pore volume of carrier.In the system of silver system of the present invention mercury removal agent
During standby, the step of vulcanization one of the dipping of carrier, active component is completed, there is the advantages of technique is simple, in addition, institute of the present invention
The utilization rate for the preparing active component height that silver is mercury removal agent is stated, so as to reduce the production cost of mercury removal agent while also carry
The high demercuration precision of mercury removal agent.
（2）The preparation method of silver system of the present invention mercury removal agent, further controls the thiosulfate and the nitric acid
The molar ratio of silver-colored addition is (3~6):1, the concentration that can so ensure silver ion in maceration extract is 0.05~0.5mol/
L, at the same control the carrier particle diameter be 1~5mm, pore volume is 0.3~09ml/g, specific surface area is 100~1000m2/ g,
Under the molar concentration of the silver ion, there is the carrier of above-mentioned specific physical property after saturation impregnates, in terms of the quality of silver oxide,
The mass percent of silver compound can reach 0.4~5wt% on carrier, under the mass percent of the silver compound, Ke Yijin
It can guarantee that the hole of carrier is not blocked after drying, so as to ensure that desulfurizing agent precursor has sufficiently high pore volume and compares surface
Product so that the silver compound of supported on carriers can be formed the active component of mercury removal agent in sulfidation by all vulcanizations, together
When also assures that vulcanization after mercury removal agent also there is enough pore volumes.Study and find through inventor, be not vulcanization in mercury removal agent
The content of silver is higher, and the demercuration precision of mercury removal agent is higher, because when the content of silver sulfide in mercury removal agent is too high, desulfurizing agent carries
The pore volume of body can be reduced accordingly, and the especially content of sulfide silver-colored in mercury removal agent is higher than 10wt%, during even more high, mercury removal agent
Pore volume can substantially reduce, so as to cause the active component inside mercury removal agent can not be with treating that demercuration raw material fully contacts and loses de-
Mercury effect.Using specific impregnation concentration of the present invention, the carrier of specific physical property, it is prepared under given conditions
Mercury removal agent, due to suitable pore volume, specific surface area and active component content, its with treating that demercuration raw material can be contacted fully,
And then improve the demercuration precision of mercury removal agent.The present invention is not on the premise of demercuration precision is reduced, due to active component in mercury removal agent
Content it is relatively low, also cause mercury removal agent cost substantially reduce.
（3）In the preparation method of silver system of the present invention mercury removal agent, further control the silver nitrate aqueous solution with 30~
80ml/min speed is slowly dropped into the aqueous thiosulfate, and stirring is equal rapidly with 60~120r/min speed
It is even, because the reaction speed between thiosulfate and the silver nitrate is especially fast, by controlling above two material in the drop
Enter and reacted under speed, it is ensured that thiosulfate and the nitric acid silver reaction are complete, and then improve raw material availability.
Embodiment
With reference to embodiments, the present invention is further described in detail, but is not limited to this.
Embodiment 1
（1）By 4.74g（0.03mol）Sodium Thio Sulphate(Anhydrous) is dissolved in 50ml water, prepares sodium thiosulfate solution；
（2）By 0.85g（0.005mol）Silver nitrate be dissolved in 50ml water, prepare silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 12ml/min speed（1）In
Sodium thiosulfate solution in, stirred rapidly with 30r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）It is 1mm by 40g particle diameter, pore volume 0.3ml/g, specific surface area 100m2/ g alumina balls carrier impregnation
In the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, drains 30min, and is dried at 90 DEG C
5h, obtain silver system mercury removal agent A.
Embodiment 2
（1）By 9.5g（0.05mol）Anhydrous potassium thiosulfate is dissolved in 50ml water, prepares sodium thiosulfate solution；
（2）By 1.7g（0.01mol）Silver nitrate be dissolved in 50ml water, prepare silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 30ml/min speed（1）In
Sodium thiosulfate solution in, stirred rapidly with 100r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）It is 3mm by 50g particle diameters, pore volume 0.4ml/g, specific surface area 300m2/ g absorbent charcoal carrier is impregnated in institute
State step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, drains 30min, and is dried at 100 DEG C
3.5h, obtain silver system mercury removal agent B.
Embodiment 3
（1）By 17.76g（0.12mol）Anhydrous ATS (Ammonium thiosulphate) is dissolved in 50ml water, and it is water-soluble to prepare sodium thiosulfate
Liquid；
（2）By 5.1g（0.03mol）Silver nitrate be dissolved in 50ml water, prepare silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 80ml/min speed（1）In
Sodium thiosulfate solution in, stirred rapidly with 200r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）It is 5mm by 50g particle diameter, pore volume 0.6ml/g, specific surface area 700m2/ g absorbent charcoal carrier carrier leaching
Stain is in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, drains 30min, and at 110 DEG C
2h is dried, obtains silver system mercury removal agent C.
Embodiment 4
（1）By 23.7g（0.15mol）Sodium Thio Sulphate(Anhydrous) is dissolved in 50ml water, prepares sodium thiosulfate solution；
（2）By 8.5g（0.05mol）Silver nitrate be dissolved in 50ml water, prepare silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 120ml/min speed（1）
In sodium thiosulfate solution in, stirred rapidly with 300r/min speed, obtain silver thiosulfate maceration extract, be placed in
Preserved at lucifuge；
（4）It is 1~5mm by 50g particle diameter, pore volume 0.9ml/g, specific surface area 1000m2/ g molecular sieve spheres carrier
It is impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, drains 30min, and in 130 DEG C
Lower dry 1h, obtain silver system mercury removal agent D.
Embodiment 5
（1）15.6g Sodium Thio Sulphate(Anhydrous)s are dissolved in 50ml water, prepare sodium thiosulfate solution；
（2）3.7g silver nitrate is dissolved in 50ml water, prepares silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 30ml/min speed（1）In
Aqueous thiosulfate in, stirred rapidly with 60r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）The activated carbon granule carrier that 100g particle diameters are 3mm is dried one hour at 150 DEG C, the work for taking drying to complete
Property charcoal particle 40g is impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, is drained
30min, and 2h is dried at 110 DEG C, obtain silver system mercury removal agent E.
Embodiment 6
（1）18.78 anhydrous potassium thiosulfates are dissolved in 50ml water, prepare sodium thiosulfate solution；
（2）3.7g silver nitrate is dissolved in 50ml water, prepares silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 30ml/min speed（1）In
Aqueous thiosulfate in, stirred rapidly with 60r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）The alumina particle carrier for taking 100g particle diameters to be 3mm is dried one hour at 80 DEG C, the oxidation for taking drying to complete
Alumina particles carrier 50g is impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation, is drained
30min, and 2h is dried at 110 DEG C, obtain silver system mercury removal agent F.
Embodiment 7
（1）The anhydrous ATS (Ammonium thiosulphate) of 16.14g is dissolved in 50ml water, prepares sodium thiosulfate solution；
（2）3.7g silver nitrate is dissolved in 50ml water, prepares silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 30ml/min speed（1）In
Aqueous thiosulfate in, stirred rapidly with 60r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）The alumina particle carrier that 100g particle diameters are 3mm is dried one hour at 120 DEG C, takes the drying to complete
Alumina particle carrier 50g be impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation,
60min is drained, and 2h is dried at 110 DEG C, obtains silver system mercury removal agent G.
Embodiment 8
（1）The anhydrous ATS (Ammonium thiosulphate) of 2.2g is dissolved in 50ml water, prepares sodium thiosulfate solution；
（2）0.85g silver nitrate is dissolved in 50ml water, prepares silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 80ml/min speed（1）In
Aqueous thiosulfate in, stirred rapidly with 120r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）The alumina particle carrier that 100g particle diameters are 3mm is dried one hour at 120 DEG C, takes the drying to complete
Alumina particle carrier 50g be impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation,
60min is drained, and 1h is dried at 130 DEG C, obtains silver system mercury removal agent H.
Embodiment 9
（1）44.5 anhydrous ATS (Ammonium thiosulphate) are dissolved in 50ml water, prepare sodium thiosulfate solution；
（2）8.5g silver nitrate is dissolved in 50ml water, prepares silver nitrate aqueous solution；
（3）By the step（2）In silver nitrate aqueous solution the step is slowly dropped into 30ml/min speed（1）In
Aqueous thiosulfate in, stirred rapidly with 120r/min speed, obtain silver thiosulfate maceration extract, be placed in and keep away
Preserved at light；
（4）The alumina particle carrier that 100g particle diameters are 3mm is dried one hour at 120 DEG C, takes the drying to complete
Alumina particle carrier 50g be impregnated in the step（3）In silver thiosulfate maceration extract in, lucifuge is impregnated to saturation,
60min is drained, and 5h is dried at 90 DEG C, obtains silver system mercury removal agent I.
Activity rating example
Mean compressive strength, specific surface area, pore volume are carried out to the silver system mercury removal agent being prepared in embodiment 1~9 and is taken off
Mercury active testing, method of testing is as follows, and test result is as shown in table 1.
Mean compressive strength：Using《The measure of HG/T2782-2011 chemical fertilizer catalyst particle anti-crushing powers》Method.
Pore volume, specific surface area：Using《The pore volume of RIPP151-90 N2 adsorption volumetric determination catalyst and aperture point
Cloth》And《GB-T19587-2004 gas absorptions BET method determines solid matter specific surface area》Method.
Demercuration activity rating uses gas phase Solid Bed dynamic evaluation approach, specific as follows：Using simple mercury generator to carrier gas
5~35 μ g/L of middle supplying mercury, by solid-bed reactor, tail gas can use《GBT16781.2-1997 Hg in natural gas contains
The measure Cold Atomic Fluorescent Mercury AAS of amount》It is measured, when outlet mercury concentration is continuous three times more than 10 μ g/m3When think to wear
Thoroughly.Useless mercury removal agent is removed, after mixing, used《The measure Clod Vapour Atomic Absorption light splitting light of GBT17136-1997 soil quality total mercuries
Degree method》Carry out mercury and hold measure.
Compression strength, specific surface area, pore volume and the demercuration active testing result of the mercury removal agent of table 1
| Sample ID | Compression strength, N/ grains | Specific surface area, m2/g | Pore volume（ml/g） | Mercury holds（%） |
| A | 157 | 131 | 0.40 | 3.5 |
| B | 156 | 129 | 0.37 | 4.2 |
| C | 156 | 126 | 0.34 | 3.7 |
| D | 154 | 92 | 0.19 | 2.9 |
| E | 130 | 780 | 0.40 | 4.4 |
| F | 155 | 128 | 0.36 | 4.9 |
| G | 153 | 122 | 0.35 | 6.0 |
| H | 158 | 135 | 0.43 | 3.8 |
| I | 154 | 100 | 0.21 | 3.3 |
From above-mentioned test result, the silver system mercury removal agent that silver system mercury removal agent preparation method of the present invention is prepared has
There are excellent specific surface area, pore volume, and compression strength can be up to 158N/ grains, mercury appearance can be up to 6.0%.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments, and the obvious change thus extended out or
Among changing still in the invention scope of the claims.
Claims (23)
1. a kind of preparation method of silver system mercury removal agent, comprises the following steps：
(1) aqueous thiosulfate is prepared；
(2) silver nitrate aqueous solution is prepared；
(3) silver nitrate aqueous solution in the step (2) is slowly dropped into the aqueous thiosulfate in the step (1)
In, and be stirred continuously, silver thiosulfate maceration extract is obtained, is placed at lucifuge and preserves；
(4) by silver thiosulfate maceration extract of the carrier impregnation in the step (3), lucifuge is impregnated to saturation, is leached, and is done
It is dry to obtain silver system mercury removal agent；
Wherein, the carrier after dipping dries 1~5h at 90~130 DEG C.
2. silver is the preparation method of mercury removal agent according to claim 1, it is characterised in that in terms of molal quantity, the thio sulphur
The ratio of hydrochlorate and the silver nitrate addition is (3~6)：1.
3. the preparation method of silver system according to claim 1 or claim 2 mercury removal agent, it is characterised in that silver ion in the maceration extract
Concentration be 0.05~0.5mol/L.
4. the preparation method of silver system according to claim 1 or claim 2 mercury removal agent, it is characterised in that described in the step (3)
Silver nitrate aqueous solution is slowly dropped into the aqueous thiosulfate with 12~120ml/min speed, and with 30~300r/
Min speed stirs rapidly.
5. silver is the preparation method of mercury removal agent according to claim 3, it is characterised in that in the step (3), the nitric acid
The silver-colored aqueous solution is slowly dropped into the aqueous thiosulfate with 12~120ml/min speed, and with 30~300r/min
Speed stir rapidly.
6. according to the preparation method of the silver system mercury removal agent of claim 1,2 or 5, it is characterised in that the thiosulfate is
Any one in sodium thiosulfate, potassium thiosulfate, ATS (Ammonium thiosulphate).
7. silver is the preparation method of mercury removal agent according to claim 3, it is characterised in that the thiosulfate is thio sulphur
Any one in sour sodium, potassium thiosulfate, ATS (Ammonium thiosulphate).
8. silver is the preparation method of mercury removal agent according to claim 4, it is characterised in that the thiosulfate is thio sulphur
Any one in sour sodium, potassium thiosulfate, ATS (Ammonium thiosulphate).
9. according to the preparation method of the silver system mercury removal agent of claim 1,2,5,7 or 8, it is characterised in that the grain of the carrier
Footpath is 1~5mm, pore volume is 0.3~0.9ml/g, specific surface area is 100~1000m2/g。
10. silver is the preparation method of mercury removal agent according to claim 3, it is characterised in that the particle diameter of the carrier be 1~
5mm, pore volume are 0.3~0.9ml/g, specific surface area is 100~1000m2/g。
11. silver is the preparation method of mercury removal agent according to claim 4, it is characterised in that the particle diameter of the carrier be 1~
5mm, pore volume are 0.3~0.9ml/g, specific surface area is 100~1000m2/g。
12. silver is the preparation method of mercury removal agent according to claim 6, it is characterised in that the particle diameter of the carrier be 1~
5mm, pore volume are 0.3~0.9ml/g, specific surface area is 100~1000m2/g。
13. the preparation method of the silver system mercury removal agent of 1,2,5,7,8,10,11 or 12 is wanted according to right, it is characterised in that described
After carrier is first handled one hour at 80~150 DEG C, then it is impregnated in silver thiosulfate maceration extract.
14. silver is the preparation method of mercury removal agent according to claim 3, it is characterised in that the carrier is first at 80~150 DEG C
After lower processing one hour, then it is impregnated in silver thiosulfate maceration extract.
15. silver is the preparation method of mercury removal agent according to claim 4, it is characterised in that the carrier is first at 80~150 DEG C
After lower processing one hour, then it is impregnated in silver thiosulfate maceration extract.
16. silver is the preparation method of mercury removal agent according to claim 6, it is characterised in that the carrier is first at 80~150 DEG C
After lower processing one hour, then it is impregnated in silver thiosulfate maceration extract.
17. silver is the preparation method of mercury removal agent according to claim 9, it is characterised in that the carrier is first at 80~150 DEG C
After lower processing one hour, then it is impregnated in silver thiosulfate maceration extract.
18. the preparation method of the silver system mercury removal agent of claim 1,2,5,7,8,10,11,12,14,15,16 or 17 is prepared into
The mercury removal agent arrived, it is characterised in that in mass, silver-colored sulfide is 0.4~5% in the mercury removal agent.
19. the mercury removal agent that the preparation method that silver described in claim 3 is mercury removal agent is prepared, it is characterised in that in mass,
Silver-colored sulfide is 0.4~5% in the mercury removal agent.
20. the mercury removal agent that the preparation method that silver described in claim 4 is mercury removal agent is prepared, it is characterised in that in mass,
Silver-colored sulfide is 0.4~5% in the mercury removal agent.
21. the mercury removal agent that the preparation method that silver described in claim 6 is mercury removal agent is prepared, it is characterised in that in mass,
Silver-colored sulfide is 0.4~5% in the mercury removal agent.
22. the mercury removal agent that the preparation method that silver described in claim 9 is mercury removal agent is prepared, it is characterised in that in mass,
Silver-colored sulfide is 0.4~5% in the mercury removal agent.
23. the mercury removal agent that the preparation method that silver described in claim 13 is mercury removal agent is prepared, it is characterised in that with quality
Count, silver-colored sulfide is 0.4~5% in the mercury removal agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310601228.1A CN104645928B (en) | 2013-11-25 | 2013-11-25 | The preparation method of silver system mercury removal agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310601228.1A CN104645928B (en) | 2013-11-25 | 2013-11-25 | The preparation method of silver system mercury removal agent |
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| Publication Number | Publication Date |
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| CN104645928A CN104645928A (en) | 2015-05-27 |
| CN104645928B true CN104645928B (en) | 2018-03-06 |
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| CN201310601228.1A Active CN104645928B (en) | 2013-11-25 | 2013-11-25 | The preparation method of silver system mercury removal agent |
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| CN115193397B (en) * | 2022-07-22 | 2023-10-27 | 润和科华催化剂(上海)有限公司 | Shell silver mercury remover and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094777A (en) * | 1975-12-18 | 1978-06-13 | Institut Francais Du Petrole | Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass |
| US4534944A (en) * | 1982-11-04 | 1985-08-13 | Environmental Protection Systems, Limited | Mercury vapor suppressant |
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| CN104093819A (en) * | 2011-12-30 | 2014-10-08 | 雪佛龙美国公司 | Process, method, and system for removing heavy metals from fluids |
| CN104083800B (en) * | 2014-04-30 | 2016-05-04 | 佛山市优特医疗科技有限公司 | Containing silver thiosulfate complex or silver-colored amine complex can moisture absorption containing silverware and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094777A (en) * | 1975-12-18 | 1978-06-13 | Institut Francais Du Petrole | Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass |
| US4534944A (en) * | 1982-11-04 | 1985-08-13 | Environmental Protection Systems, Limited | Mercury vapor suppressant |
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