CN1328355C - Use of colloidal copper in metamorphic jetting fuel regenerating treatment and preparing method thereof - Google Patents
Use of colloidal copper in metamorphic jetting fuel regenerating treatment and preparing method thereof Download PDFInfo
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- CN1328355C CN1328355C CNB2004100460745A CN200410046074A CN1328355C CN 1328355 C CN1328355 C CN 1328355C CN B2004100460745 A CNB2004100460745 A CN B2004100460745A CN 200410046074 A CN200410046074 A CN 200410046074A CN 1328355 C CN1328355 C CN 1328355C
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Abstract
The present invention discloses an application of colloid copper in the regeneration treatment of deterioration jet fuel. The alkaline solution of colloid copper and deterioration jet fuel are fully mixed and stirred, copper in the colloid copper and element sulfur in the deterioration jet fuel generate chemical reaction, and the element sulfur is removed from the deterioration jet fuel. The present invention also discloses a preparation method for the colloid copper. Firstly, egg protein is added to NaOH to be dissolved to prepare a perivine mixing agent by vacuum filtration; secondly, the perivine mixing agent is dissolved into glacial acetic acid, and a cupric sulfate solution is added to a mixed liquid; thirdly, H3PO2 is added to the mixed liquid to react to generate precipitation; fourthly, after the precipitation is centrifugally separated, the precipitation is newly dissolved in a weak base water liquid, and the precipitation is evaporated by a thermostatic water bath to obtain black powder which is the colloid copper. The colloid copper is used for regenerating the deterioration jet fuel, the colloid copper has the advantages of strong selectivity and high efficiency, and the abrasion proof lubricity of fuel can not be influenced. The preparation method for the colloid copper provided by the present invention has the advantages of low preparation cost, economy and feasibility.
Description
Technical field
The present invention relates to a kind of rotten rocket engine fuel regeneration and treatment technique, is the electrocuprol application in the rocket engine fuel manipulation of regeneration on the turn specifically, has also related to a kind of preparation method of used electrocuprol simultaneously.
Background technology
Rotten rocket engine fuel is carried out manipulation of regeneration, is the problem that people are studying always, and rotten rocket engine fuel regeneration is analyzed theoretically, and adsorption treatment is more suitable.Rotten fuel is carried out manipulation of regeneration, at first require effectively to remove the harmful corrosives in the rotten rocket engine fuel, secondly can not influence and change other performance of fuel.Yet, studies show that, adopt adsorption treatment, but exist following problem: when (1) adopts sorbent material to carry out manipulation of regeneration, when oxious component is removed in absorption, a small amount of additive, nonhydrocarbon (useful) composition also can be adsorbed and remove, thereby cause rotten rocket engine fuel oilness after the adsorption treatment problem such as bigger that descends; (2) adopt the adsorption treatment mode to exist also that processing speed is slow, the problem of processing power difference, adopt adsorption treatment modes usually powerless some rotten fuel; For example the contriver has investigated sorbent material silica gel, 13X molecular sieve and aluminum oxide commonly used respectively, and Comprehensive Experiment finds, silica gel, molecular sieve still can not make rotten rocket engine fuel qualified under the extremely slow situation of processing speed; Consider from factor such as economic, efficient that (3) the rotten rocket engine fuel technology of adsorption treatment still can not drop into practical application.
Because people are unclear in the rotten rocket engine fuel being what composition has produced corrodibility understanding all the time, so untappedly go out a kind of efficient, economic regeneration treating method.The inventor is through studying for a long period of time and a large amount of experiment, find that rotten rocket engine fuel corrosive basic reason is the existence of elementary sulfur, therefore, to carry out manipulation of regeneration to rotten rocket engine fuel, what remove mainly is elementary sulfur in the rotten rocket engine fuel, this is more pointed for selecting, efficiently, cheaply treatment process provide may.
Electrocuprol is the colloid of metallic copper, is core with elemental copper newborn in the reaction, coats through surfactant and forms microcapsule.Microcapsule can be examined core to copper and form protection, and it is scattered in the water, can enlarge the specific surface area of copper." material protection " the 9th phase that on September 25th, 1991 published; the 12nd page of preparation method and the application that discloses a kind of electrocuprol of total the 165th phase; Lai Xinghua is used as catalytic activation liquid to electrocuprol and the preparation method of electrocuprol is studied in plating, the composition mechanism of its electrocuprol catalytic activation liquid is as follows:
(1) cupric ion Cu
2+Complex reaction takes place with complexing agent an
Free copper content is reduced greatly, and the redox electrode electromotive force descends, consequently:
(2) 2Cu
2++ reductive agent B_Cu
++ Cu
0The reduction trend of this step greatly reduces, and because Cu
2+Minimizing, it is slow that the speed of reduction reaction also becomes.Suitably reduce the reaction tendency and the speed of response of this step, it is favourable that colloid is formed.
(3)
Cu
+(an)
2Stronger complexing agent (NH with last adding
2)
2Transformation takes place in CS
Cu
+(an)
2+2(CS)_Cu
+(CS)
2+2(an)
(4) system temperature is about 60 ℃, Cu
+(CS)
2With reductive agent B effect, be reduced into Cu
0
Cu
+(CS)
2+ reductive agent B_Cu
0+ 2 (CS)
The redox speed in this step forms the critical effect that plays to colloidal
(5) Xin Sheng copper atom is agglomerated into glue nuclear with certain number, simultaneously positive ion and the hydrophilic organic polymer deflocculant BP80 among the absorbing and reducing agent B.
The electrocuprol that adopts this mode to make is colloidal copper solution, and electrocuprol effective constituent is difficult to separate from activation solution, thus be not easy to the prolonged preservation and the transportation of electrocuprol, and this production method technology more complicated, production cost is also than higher.
Summary of the invention
The object of the present invention is to provide a kind ofly to remove the method for elementary sulfur in the rotten rocket engine fuel, to overcome existing adsorption treatment mode above shortcomings with chemical process.
Another object of the present invention also is to provide a kind of preparation method of used electrocuprol.
The present invention is applied to a new technical field with electrocuprol, i.e. the manipulation of regeneration of rotten rocket engine fuel.
Electrocuprol is the application in the rocket engine fuel manipulation of regeneration on the turn.
Described electrocuprol is the application in the rocket engine fuel manipulation of regeneration on the turn, its method is: with electrocuprol basic solution and rotten rocket engine fuel mixing stirring, electrocuprol is broken discharge core copper, elementary sulfur generation chemical reaction in core copper and the rotten rocket engine fuel, generate copper sulfide precipitation, make elementary sulfur be able to from rocket engine fuel, remove.Also can with electrocuprol attached on molecular sieve or other sorbent material with the shared desulfurization of sorbent material, but effect is relatively poor comparatively speaking.
The preferable pH value of described electrocuprol basic solution greater than 7.0 smaller or equal to 8.0.
The preferable fluid volume ratio of rotten rocket engine fuel and colloidal copper solution is 4: 1～3: 1.
The suitable churning time of described colloidal copper solution and rotten rocket engine fuel is 5～10 minutes.
Described electrocuprol can coat the electrocuprol that copper simple substance forms for sending sharp albumen mixture.
Electrocuprol is as a kind of micro-capsule, copper is dissolved in the water with colloidal form, can enlarge the reaction contact area of copper and elementary sulfur during manipulation of regeneration, speed of response is increased, discharge core copper during reaction, core copper and elementary sulfur reaction generate cupric sulfide, copper sulfide precipitation is in water, and immiscible because of water and rocket engine fuel, cupric sulfide is present in water and sedimentation, elementary sulfur can be separated in oil phase (rocket engine fuel) like this, be reached the purpose of desulfurization.Because of this desulfurization method belongs to a kind of chemical reaction desulfurization, so selectivity is strong, the removal efficiency height.
The contriver studies the concentration of colloidal copper solution and the relation of sweetening effectiveness, shows by experiment, and colloidal copper solution concentration increases, and its sweetening power also strengthens, and required churning time is short when promptly handling same quantitative change matter rocket engine fuel, and total treatment capacity increases.But electrocuprol concentration increases, and total treatment capacity is not proportional increase, and the elementary sulfur reaction in core copper and the fuel is more not thorough.The suitable concentration of described electrocuprol is 5～10g/L, under this operational condition, every 70ml concentration is the electrocuprol of 5～10g/L, and optimum value is 9.7g/L, to the rotten about 2500ml of rocket engine fuel maximum throughput (elementary sulfur concentration is calculated by 8～12 μ g/g in the rotten oil).Total processing costs in 200～250 yuan/ton, economically feasible.
The contriver adopts the ICPAES method, i.e. inductively coupled plasma Atomic Emission Spectral Analysis method is measured remaining copper content in the rotten rocket engine fuel after the electrocuprol manipulation of regeneration.Used instrument is Plasma400, sample introduction flow velocity 1mL/min, power 47.2MHz, plasma (orifice) gas (Ar argon gas) 16.7L/min, height of observation 8mm, auxiliary gas (Ar argon gas) 1L/min.The result shows that remaining copper content meets GB6537-94 and requires (content of copper ion is not more than 150 μ g/kg) less than 53.2 μ g/kg in the rocket engine fuel after the electrocuprol manipulation of regeneration.
The contriver also evaluates regeneration rocket engine fuel oilness.The contriver measures the rocket engine fuel resistance to abrasion with reference to lubricating oil four-ball tester method.Under rotating speed 1400～1440r/min situation, the general measurement lower limit 49N of rocket engine fuel oil sample PB value less than four-ball tester, therefore, adopt compared steel ball milling spot diameter (rotating speed 1400～1440r/min, load 98N) to analyze rocket engine fuel resistance to abrasion size and variation.Experiment shows that through the rocket engine fuel of electrocuprol manipulation of regeneration, its resistance to abrasion changes little, and electrocuprol is handled rotten rocket engine fuel, influences the fuel anti-wear lubricating hardly.
It is above-mentioned to send sharp albumen mixture to coat the method that copper simple substance prepares electrocuprol that the present invention also provides, and its method comprises:
(1) ovum protein is added NaOH dissolving, vacuum filtration makes and sends sharp mixture;
(2) will send sharp mixture to be dissolved in the Glacial acetic acid, in mixed solution, add copper-bath, and then add H
3PO
2, to react, precipitation appears, again throw out is dissolved in behind the centrifugation throw out in the weak alkaline solution, water bath with thermostatic control gets black powder with the water evaporate to dryness and is electrocuprol.
Described weak alkaline solution pH value is smaller or equal to 8.0 greater than 7.0.
The electrocuprol that makes is carried out TEM (transmission electron microscope) analysis, adopt electrocuprol mean particle dia that method of the present invention makes between 150nm～250nm.
The contriver measures copper content in the electrocuprol, and its method is:
(1) join sample: it is soluble in water to get 0.027g new system electrocuprol, is made into 1000mL solution, this solution electrocuprol content 0.027g/L.(a) get 0.027g/L colloidal copper solution 10mL, be diluted to 50mL, diluent copper content to be determined.(b) get 0.027g/L colloidal copper solution 10mL, put into separating funnel, in separating funnel, add 10mL chlorine bleach liquor (peace tiformin, analytical pure, active chlorine content is no less than 50g/L), acutely shake, add 13% (m/m) hydrochloric acid 10mL again, thermal agitation 5min, standing demix.Acid solution is put into the 100mL separating funnel, use the extraction of 10mL13% (m/m) hydrochloric acid soln more once, with distilled water hcl as extraction agent liquid is settled to 100mL, copper content to be determined.(c) get 0.027g/L colloidal copper solution 5mL, handle it, be settled to 50mL, copper content to be determined with aforementioned method.
(2) adopt ICPAES, i.e. inductively coupled plasma Atomic Emission Spectral Analysis method is measured sample copper content: instrument Plasma400, sample introduction flow velocity 1mL/min, power 47.2MHz, plasma (orifice) gas (Ar argon gas) 16.7L/min, height of observation 8mm, auxiliary gas (Ar argon gas) 1L/min.The results are shown in Table l.
Table 1 electrocuprol core copper content testing result
| Specimen coding | Solution electrocuprol content (g/L) | Solution C u content (g/L) | Electrocuprol core Cu content (Cu/ electrocuprol: g/g) | |
| The sample measured value | Mean value | |||
| a | 0.0054 | 0.00147 | 0.27 | 0.277 |
| b | 0.0027 | 0.00066 | 0.24 | |
| c | 0.0027 | 0.00086 | 0.32 | |
From the assay determination result as seen, CuSO
4Middle Cu element is converted into metallic copper substantially, and electrocuprol core copper content is approximately 0.27g/g (Cu/ electrocuprol).
In sum, the present invention is applied to electrocuprol the manipulation of regeneration of rotten rocket engine fuel, owing to be to utilize the elementary sulfur in copper and the rotten rocket engine fuel to carry out chemical reaction to remove the elementary sulfur in the rotten rocket engine fuel, so have the advantage that selectivity is strong, efficient is high, in the process that efficiently removes elementary sulfur, can not remove useful compositions such as additive, not influence anti-wear lubricating, and the copper residual quantity is low in the rotten rocket engine fuel after handling.The preparation method of electrocuprol provided by the invention has then that technology is simple, preparation cost is low, economically viable advantage, and the electrocuprol that makes is solid phase prod, with respect to liquid product, is convenient to long storage and transportation more.
Embodiment
Below in conjunction with specific embodiment content of the present invention is elaborated, but embodiments of the present invention are not limited in these several specific embodiments of the present invention.
The corrodibility of rocket engine fuel is undertaken by the SH/T0023-90 standard, jet fuel silver slice corrosion situation before and after the comparative analysis desulfurization, thus reflect the electrocuprol sweetening effectiveness indirectly, intuitively.
Embodiment 1
The preparation of electrocuprol:
(1) agents useful for same: ovum protein, the 100g dress meets GB2755-81, and China Medicine (Group) Shanghai Chemical Reagent Co., produces;
Sodium hydroxide, analytical pure meets GB629-81, east, Chongqing chemical reagent work;
Glacial acetic acid, yellow soda ash;
Copper sulfate (CuSO
4H
2O, analytical pure, Chongqing Bei Bei chemical reagent factory)
Ortho phosphorous acid (H
3PO
2, chemical pure, Shanghai reagent two factories)
(2) send the preparation of sharp albumen mixture: get 15gNaOH and be dissolved in 500 ml distilled waters, then the gradation of 100g ovum protein is joined in the NaOH solution; The dissolving of ovum protein in NaOH solution is slower, so, after adding small amount of albumen, all should stir, till forming almost uniform liquid at every turn.Then, mixture was put in the water-bath about 100 ℃ heating one hour, albumen dissolves substantially fully, discharges ammonia NH
3, a little flocks of association.Use the vacuum filtration machine to remove by filter flocks, promptly get the required sharp albumen mixture of sending.
(3) preparation of electrocuprol: send sharp albumen mixture to be dissolved in 27 milliliters of Glacial acetic acid with 30 milliliters, 50 ℃ of heating in water bath 5 minutes; Copper sulfate (pure) solution that in mixture, adds 4 milliliter 15%, reheat is 5 minutes in the water-bath; The H that adds 5 milliliter 0.3% then
3PO
2Solution heated 5 minutes once more.The solution of this moment is viewed as ruby to light, and backlight then is black.Cooling, it is mixed that solution promptly becomes; After after a while, the brown precipitate that settles out (part is condensed).With saturated Na
2CO
3Solution fully precipitates it, and centrifugation also washes precipitation 4 times with water.To wash postprecipitation and be dissolved in (mildly heating helps dissolving) in the weak alkaline solution again, on boiling water bath, be evaporated to dried.Obtain black metalloid powder and be electrocuprol.Reaction equation:
CuSO
4+H
3PO
2+H
2O＝H
2SO
4+H
3PO
3+Cu
Electrocuprol is dissolved in the weakly alkaline water sample that pH value is 7.0-8.0 can makes colloidal copper solution.
Embodiment 2
Used electrocuprol concentration 1.5g/L, total consumption 70mL, pH value 7.1; Process object is to take from the rotten rocket engine fuel of the military oil depot in Kunming (4 grades of silver slice corrosions); The 70ml colloidal copper solution is mixed stirring with rotten rocket engine fuel.Use the silver slice corrosion experiment to judge sweetening effectiveness, the results are shown in Table 2.
Table 2 1.5g/L electrocuprol is handled rotten oil sample effect expedition
| Handle oil mass | Churning time | The silver slice corrosion experimental result |
| First 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| Second 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 3rd 250mL | 5min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
| 10min | Silver strip is bright and clean, |
| Deciding grade and level is 0 grade | ||
| The 4th 250mL | 10min | The yellow corrosion of silver strip corner wheat is defined the level 2 grades |
| 15min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade | |
| 20min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
As can be seen from Table 2,1.5g/L colloidal copper solution 70mL, under abundant stirring state, it is qualified the rocket engine fuel that goes bad can be handled silver slice corrosion in five minutes; 70mL1.5g/L handling rotten rocket engine fuel total amount, colloidal copper solution can reach 750mL.Predesigne, 70mL concentration are the colloidal copper solution cupric 0.27 * 1.5 * 0.07 (g) of 1.5g/L, and promptly about 0.028g is equivalent to 0.4 * 10
-3Mol; Can the processing element sulphur concentration be the rotten rocket engine fuel (0.4 * 10 of 10 μ g/mL in theory
-3* 32 * 10
6) ÷ 10 (mL), promptly about 1200mL.Suitable difference is arranged between actual treatment amount and the calculated value, and, Cu less with electrocuprol concentration and S reaction are not thoroughly, the treating processes loss is more relevant.
Embodiment 3
Electrocuprol concentration 5g/L, total consumption 60mL; Process object is to take from the rotten rocket engine fuel of Kunming oil depot or Shanghai Da Chang oil depot (2～4 grades of silver slice corrosions); Fully stir.Use the silver slice corrosion experiment to judge sweetening effectiveness, the results are shown in Table 3.
Table 3 5g/L electrocuprol is handled rotten oil sample effect expedition
| Handle oil mass | Churning time | The silver slice corrosion experimental result |
| First 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| Second 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 3rd 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 4th 250mL | 5min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
| 10min | Silver strip is bright and clean, and deciding grade and level is 0 grade | |
| The 5th 250mL | 10min | The faint yellow corrosion in silver strip corner is defined the level 1 grade |
| 15min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade | |
| 20min | Silver strip is bright and clean, and deciding grade and level is 0 grade | |
| The 6th 250mL | 20min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
| 25min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade | |
| 30min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
| 35min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
Experimental result shows: colloidal copper solution concentration increases, and its sweetening power also strengthens, and when promptly handling same quantitative change matter rocket engine fuel, required churning time is short, and total treatment capacity increases.But electrocuprol concentration increases, and total treatment capacity is not proportional increase, and core Cu and fuel S reaction are more not thorough.
Embodiment 4
Electrocuprol concentration 9.5g/L, total consumption 30mL; Process object is rotten rocket engine fuel (2～4 grades of silver slice corrosions).Use the silver slice corrosion experiment to judge sweetening effectiveness, the results are shown in Table 4.
The rotten oil sample effect expedition of table 4 10g/L electrocuprol reason
| Handle oil mass | Churning time | The silver strip corrosion test result |
| First 250mL | 5min | 0 grade |
| Second 250mL | 5min | 0 grade |
| The 3rd 250mL | 5min | 1 grade |
| The 4th 250mL | 5min | 2 grades |
| 10min | 1 grade |
As can be seen from Table 4, because the electrocuprol consumption very little, core copper contacts insufficient with elementary sulfur in the rotten rocket engine fuel, and sulfur limitation effect is extremely undesirable.
Embodiment 5
Electrocuprol concentration 9.5g/L, total consumption 70mL; Process object for take from Kunming oil depot or Shanghai * * the rotten rocket engine fuel (2～4 grades of silver slice corrosions) of certain oil depot; Fully stir.
Use the silver slice corrosion experiment to judge sweetening effectiveness, the results are shown in Table 5.
The rotten oil sample effect expedition of table 5 9.5g/L electrocuprol reason
| Handle oil mass | Churning time | The silver slice corrosion experimental result |
| First 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| Second 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 3rd 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 4th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 5th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 6th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 7th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 8th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The 9th 250mL | 5min | Silver strip is bright and clean, and deciding grade and level is 0 grade |
| The tenth 250mL | 5min | The faint yellow corrosion in silver strip corner, |
| Deciding grade and level is 1 grade | ||
| 10min | Silver strip is bright and clean, and deciding grade and level is 0 grade | |
| The 11 250mL | 10min | The faint yellow corrosion in silver strip corner, deciding grade and level are 1 grade |
| 15min | 1 grade |
As can be seen from Table 5: when electrocuprol concentration is 9.5g/L, under 1: 4 to 1: 3 situation of oil fuel ratio, fully stir, its sweetening effectiveness better, treatment capacity is bigger.
Claims (5)
1, the electrocuprol application in the rocket engine fuel manipulation of regeneration on the turn, pH value is stirred smaller or equal to 8.0 electrocuprol basic solution and rotten rocket engine fuel thorough mixing greater than 7.0, electrocuprol is broken discharge core copper, elementary sulfur generation chemical reaction in core copper and the rotten rocket engine fuel, generate copper sulfide precipitation, make elementary sulfur be able to from rocket engine fuel, remove; The fluid volume ratio of described rotten rocket engine fuel and colloidal copper solution is 4: 1～3: 1.
2, electrocuprol as claimed in claim 1 application in the rocket engine fuel manipulation of regeneration on the turn is characterized in that: described electrocuprol coats the electrocuprol of copper simple substance formation for send sharp albumen mixture.
3, electrocuprol as claimed in claim 1 or 2 application in the rocket engine fuel manipulation of regeneration on the turn, it is characterized in that: described colloidal copper solution mixes churning time with rotten rocket engine fuel be 5～10 minutes.
4, electrocuprol as claimed in claim 1 or 2 application in the rocket engine fuel manipulation of regeneration on the turn, it is characterized in that: the concentration of described colloidal copper solution is 5～10g/L.
5, electrocuprol as claimed in claim 1 or 2 application in the rocket engine fuel manipulation of regeneration on the turn, it is characterized in that: described colloidal copper solution concentration is 9.7g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100460745A CN1328355C (en) | 2004-06-04 | 2004-06-04 | Use of colloidal copper in metamorphic jetting fuel regenerating treatment and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100460745A CN1328355C (en) | 2004-06-04 | 2004-06-04 | Use of colloidal copper in metamorphic jetting fuel regenerating treatment and preparing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1583969A CN1583969A (en) | 2005-02-23 |
| CN1328355C true CN1328355C (en) | 2007-07-25 |
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| CN104941247B (en) * | 2015-05-29 | 2016-09-28 | 孚迪斯石油化工（葫芦岛）有限公司 | Jet fuel regeneration economic benefits and social benefits absorption distillation technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607575A (en) * | 1993-09-03 | 1997-03-04 | Nippon Oil Co., Ltd. | Process for removing iron impurities from petroleum oil distillation residues |
| CN1258719A (en) * | 1999-04-10 | 2000-07-05 | 中国石油化工集团公司 | Hydrocarbon dearsenicating catalyst and its preparation |
-
2004
- 2004-06-04 CN CNB2004100460745A patent/CN1328355C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607575A (en) * | 1993-09-03 | 1997-03-04 | Nippon Oil Co., Ltd. | Process for removing iron impurities from petroleum oil distillation residues |
| CN1258719A (en) * | 1999-04-10 | 2000-07-05 | 中国石油化工集团公司 | Hydrocarbon dearsenicating catalyst and its preparation |
Non-Patent Citations (1)
| Title |
|---|
| 喷气燃料种腐蚀性物质与润滑性研究 胡泽祥，刘勇华，杨官汉，娄方，润滑与密封，第4期 2002 * |
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