CN105838474A - Chromium-free coke passivator and method for preparing same - Google Patents
Chromium-free coke passivator and method for preparing same Download PDFInfo
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- CN105838474A CN105838474A CN201610373866.6A CN201610373866A CN105838474A CN 105838474 A CN105838474 A CN 105838474A CN 201610373866 A CN201610373866 A CN 201610373866A CN 105838474 A CN105838474 A CN 105838474A
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- coke
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
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- Oil, Petroleum & Natural Gas (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a chromium-free coke passivator and a method for preparing the same. The chromium-free coke passivator comprises, by weight, 54-73 parts of boric acid, 3-22 parts of white carbon black, 5-19 parts of borax, 7.5-21 parts of high-magnesium powder, 4-16 parts of magnesium sulfate, 1-10 parts of hydroxy propyl celluloses, 7-28 parts of calcium oxide, 16-30 parts of salicylic acid, 27-41 parts of propylene glycol and 35-48 parts of deionized water. The method includes mixing the boric acid, the white carbon black, the borax, the high-magnesium powder, the magnesium sulfate, the hydroxy propyl celluloses and the calcium oxide with one another to obtain first mixtures and carrying out ball-milling on the first mixtures; arranging the first mixtures in a stirrer, adding the salicylic acid, the propylene glycol and the deionized water into the stirrer, stirring the first mixtures, the salicylic acid, the propylene glycol and the deionized water to obtain second mixtures, carrying out ultrasonic treatment on the second mixtures and cooling the second mixtures to obtain the chromium-free coke passivator. The chromium-free coke passivator and the method have the advantages that the reactivity of coke can be reduced under synergistic effects of components of the chromium-free coke passivator, the post-reaction strength of the coke can be improved, excellent passivation effects can be realized, the method is simple, and the chromium-free coke passivator and the method have broad application prospects.
Description
Technical field
The invention belongs to ironmaking technology field, be specifically related to a kind of coke chrome-free tanning agent and preparation method thereof.
Background technology
Coke is important metallurgical raw material, and the effect of coke fuel, reducing agent and nitriding medium played in blast furnace is because there being coal
The part of powder substitutes and weakens, and the effect of loose skeleton strengthens, and therefore the thermal property of STRENGTH ON COKE is had higher requirement.
The reactivity reducing coke and the post reaction strength improving coke are particularly important.
The Chinese patent of Application No. 200510017909.9 discloses a kind of blast furnace ironmaking coke deactivator and using method thereof,
The percetage by weight of the constituent of described coke deactivator is: boric acid 70～90%, Borax 0～10% and fineness 500 mesh with
Under, purity is silicon dioxide 5～30% more than 98%.It is 1～4% change that described coke deactivator add hot water stirs to be configured to concentration
Property agent solution, by 1～the straying quatity of 5% of weight of coke, is sprayed at crossings on different level atomized manner by booster pump, special nozzle
The surface of coke, but the reactivity of the coke deactivator prepared and post reaction strength are insufficient for requirement.
Summary of the invention
In order to overcome above the deficiencies in the prior art, the invention provides a kind of coke chrome-free tanning agent and preparation method thereof, prepare
Passivator by the synergism between component, reduce the reactivity of coke, improve the post reaction strength of coke, have good
Passivation effect, preparation method is simple simultaneously, has a extensive future.
The technical solution used in the present invention is: a kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 54-73
Part, white carbon 3-22 part, Borax 5-19 part, Mg-high andesite 7.5-21 part, magnesium sulfate 4-16 part, hydroxypropyl cellulose 1-10
Part, calcium oxide 7-28 part, salicylic acid 16-30 part, propylene glycol 27-41 part, deionized water 35-48 part.
Preferably, a kind of coke chrome-free tanning agent, it is made up of each component of following mass parts: boric acid 58-68 part, white carbon 5-16
Part, Borax 9-15 part, Mg-high andesite 10-16 part, magnesium sulfate 9-14 part, hydroxypropyl cellulose 2-6 part, calcium oxide 12-23 part,
Salicylic acid 18-27 part, propylene glycol 30-37 part, deionized water 39-45 part.
It is furthermore preferred that a kind of coke chrome-free tanning agent, it is made up of each component of following mass parts: boric acid 60.5 parts, white carbon 12
Part, Borax 14 parts, Mg-high andesite 12 parts, 10 parts of magnesium sulfate, hydroxypropyl cellulose 4 parts, calcium oxide 16 parts, salicylic acid 21
Part, propylene glycol 35 parts, deionized water 41 parts.
A kind of preparation method of coke chrome-free tanning agent, step is as follows:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 45-60 DEG C
Lower stirring 30-45min, ultrasonic 10-20min at 60-80 DEG C, i.e. obtain described coke chrome-free tanning agent after cooling.
Preferably, in above-mentioned steps (1), Ball-milling Time is 1-2.5h.
Preferably, in above-mentioned steps (2), stir speed (S.S.) is 800-1500r/min.
Beneficial effect: after the passivator that the present invention prepares is applied to coke, reactive between 15.2-16.3%, post reaction strength
Between 76.9-80.8%, by the synergism between component, reduce the reactivity of coke, improve the post reaction strength of coke,
Having good passivation effect, preparation method is simple simultaneously, has a extensive future.
Detailed description of the invention
Embodiment 1
A kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 54 parts, white carbon 3 parts, Borax 5 parts,
Mg-high andesite 7.5 parts, 4 parts of magnesium sulfate, hydroxypropyl cellulose 1 part, calcium oxide 7 parts, salicylic acid 16 parts, propylene glycol 27 parts,
Deionized water 35 parts.
Preparation method:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling 1h；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 45 DEG C
Lower stirring 30min, stir speed (S.S.) is 800r/min, and ultrasonic 10min at 60 DEG C i.e. obtains described coke chrome-free tanning agent after cooling.
Embodiment 2
A kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 73 parts, white carbon 22 parts, Borax 19
Part, Mg-high andesite 21 parts, 16 parts of magnesium sulfate, hydroxypropyl cellulose 10 parts, calcium oxide 28 parts, salicylic acid 30 parts, propylene glycol
41 parts, deionized water 48 parts.
Preparation method:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling 2.5h；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 60 DEG C
Lower stirring 45min, stir speed (S.S.) is 1500r/min, and ultrasonic 20min at 80 DEG C i.e. obtains described coke chrome-free tanning agent after cooling.
Embodiment 3
A kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 58 parts, white carbon 5 parts, Borax 9 parts,
Mg-high andesite 10 parts, 9 parts of magnesium sulfate, hydroxypropyl cellulose 2 parts, calcium oxide 12 parts, salicylic acid 18 parts, propylene glycol 30 parts,
Deionized water 39 parts.
Preparation method:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling 1.5h；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 50 DEG C
Lower stirring 35min, stir speed (S.S.) is 900r/min, and ultrasonic 15min at 65 DEG C i.e. obtains described coke chrome-free tanning agent after cooling.
Embodiment 4
A kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 68 parts, white carbon 16 parts, Borax 15
Part, Mg-high andesite 16 parts, 14 parts of magnesium sulfate, hydroxypropyl cellulose 6 parts, calcium oxide 23 parts, salicylic acid 27 parts, propylene glycol
37 parts, deionized water 45 parts.
Preparation method:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling 2h；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 55 DEG C
Lower stirring 40min, stir speed (S.S.) is 1200r/min, and ultrasonic 15min at 70 DEG C i.e. obtains described coke chrome-free tanning agent after cooling.
Embodiment 5
A kind of coke chrome-free tanning agent, is made up of each component of following mass parts: boric acid 60.5 parts, white carbon 12 parts, Borax
14 parts, Mg-high andesite 12 parts, 10 parts of magnesium sulfate, hydroxypropyl cellulose 4 parts, calcium oxide 16 parts, salicylic acid 21 parts, the third two
Alcohol 35 parts, deionized water 41 parts.
Preparation method:
(1) by above-mentioned mass parts, by boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide
Mixing, obtains compound after ball milling 2h；
(2) compound of step (1) gained is placed in agitator, addition salicylic acid, propylene glycol and deionized water, 50 DEG C
Lower stirring 35min, stir speed (S.S.) is 1000r/min, and ultrasonic 15min at 70 DEG C i.e. obtains described coke chrome-free tanning agent after cooling.
Comparative example
The Chinese patent of Application No. 200510017909.9 discloses a kind of blast furnace ironmaking coke deactivator and using method thereof,
The percetage by weight of the constituent of described coke deactivator is: boric acid 70～90%, Borax 0～10% and fineness 500 mesh with
Under, purity is silicon dioxide 5～30% more than 98%.
Performance test:
According to the 5wt% of coke quality, weigh embodiment 1-5 and passivator that comparative example prepares, by force (forcing) pump, nozzle, vertical
Body intersects, vaporific is sprayed at coke surface, measures heat reactivity and the post reaction strength of coke, knot according to GB/T4000-2008
The most as shown in the table:
It is as can be seen from the above table: after the passivator that embodiment 1-5 prepares is applied to coke, reactive between 15.2-16.3%,
Post reaction strength is between 76.9-80.8%, and after the passivator that comparative example prepares is applied to coke, reactivity is 25.6%, instead
Should intensity be 64.6% afterwards, it follows that the passivator that embodiment 1-5 prepares is by the synergism between component, reduce Jiao
The reactivity of charcoal, improves the post reaction strength of coke, has good passivation effect, and preparation method is simple simultaneously, application prospect
Wide.
Claims (6)
1. a coke chrome-free tanning agent, it is characterized in that, be made up of the component of following mass parts: boric acid 54-73 part, white carbon 3-22 part, Borax 5-19 part, Mg-high andesite 7.5-21 part, magnesium sulfate 4-16 part, hydroxypropyl cellulose 1-10 part, calcium oxide 7-28 part, salicylic acid 16-30 part, propylene glycol 27-41 part, deionized water 35-48 part.
A kind of coke chrome-free tanning agent the most according to claim 1, it is characterized in that, be made up of the component of following mass parts: boric acid 58-68 part, white carbon 5-16 part, Borax 9-15 part, Mg-high andesite 10-16 part, magnesium sulfate 9-14 part, hydroxypropyl cellulose 2-6 part, calcium oxide 12-23 part, salicylic acid 18-27 part, propylene glycol 30-37 part, deionized water 39-45 part.
A kind of coke chrome-free tanning agent the most according to claim 1, it is characterized in that, be made up of the component of following mass parts: boric acid 60.5 parts, white carbon 12 parts, Borax 14 parts, Mg-high andesite 12 parts, 10 parts of magnesium sulfate, hydroxypropyl cellulose 4 parts, calcium oxide 16 parts, salicylic acid 21 parts, propylene glycol 35 parts, deionized water 41 parts.
4. the preparation method of a kind of coke chrome-free tanning agent described in claims 1 to 3 any one, it is characterised in that: step is as follows:
(1) by above-mentioned mass parts, boric acid, white carbon, Borax, Mg-high andesite, magnesium sulfate, hydroxypropyl cellulose and calcium oxide are mixed, after ball milling, obtains compound；
(2) compound of step (1) gained is placed in agitator, adds salicylic acid, propylene glycol and deionized water, stir 30-45min, ultrasonic 10-20min at 60-80 DEG C at 45-60 DEG C, after cooling, i.e. obtain described coke chrome-free tanning agent.
The preparation method of a kind of coke chrome-free tanning agent the most according to claim 4, it is characterised in that: in described step (1), Ball-milling Time is 1-2.5h.
The preparation method of a kind of coke chrome-free tanning agent the most according to claim 4, it is characterised in that: in described step (2), stir speed (S.S.) is 800-1500r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373866.6A CN105838474A (en) | 2016-05-31 | 2016-05-31 | Chromium-free coke passivator and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373866.6A CN105838474A (en) | 2016-05-31 | 2016-05-31 | Chromium-free coke passivator and method for preparing same |
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| CN105838474A true CN105838474A (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373866.6A Pending CN105838474A (en) | 2016-05-31 | 2016-05-31 | Chromium-free coke passivator and method for preparing same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142121A (en) * | 2017-06-01 | 2017-09-08 | 河北金百祥科技有限公司 | Coke modification agent and preparation method thereof and coke modification method |
| CN109022098A (en) * | 2018-08-17 | 2018-12-18 | 宁波敬业控股集团有限公司 | Coke deactivator and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423187A (en) * | 1973-10-01 | 1976-01-28 | Isc Smelting | Deactivation of coke |
| CN1392223A (en) * | 2002-04-30 | 2003-01-22 | 重庆大学 | Coke modifying process |
| CN1730628A (en) * | 2005-08-15 | 2006-02-08 | 安阳钢铁集团有限责任公司 | Coke passivator and its usage |
| CN101186853A (en) * | 2007-12-11 | 2008-05-28 | 河南通宇冶材集团有限公司 | Coke passivator and preparation method thereof |
| CN102041129A (en) * | 2010-12-02 | 2011-05-04 | 中国科学院过程工程研究所 | Coke passivator containing trace additives as well as preparation and use method of additives |
| CN102071084A (en) * | 2009-11-24 | 2011-05-25 | 蔺国庆 | Coke passivating agent composition and preparation method thereof |
| KR20140102620A (en) * | 2013-02-14 | 2014-08-22 | 주식회사 후상 | compound for blunting reaction of coke and method for improving coke |
-
2016
- 2016-05-31 CN CN201610373866.6A patent/CN105838474A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423187A (en) * | 1973-10-01 | 1976-01-28 | Isc Smelting | Deactivation of coke |
| CN1392223A (en) * | 2002-04-30 | 2003-01-22 | 重庆大学 | Coke modifying process |
| CN1730628A (en) * | 2005-08-15 | 2006-02-08 | 安阳钢铁集团有限责任公司 | Coke passivator and its usage |
| CN101186853A (en) * | 2007-12-11 | 2008-05-28 | 河南通宇冶材集团有限公司 | Coke passivator and preparation method thereof |
| CN102071084A (en) * | 2009-11-24 | 2011-05-25 | 蔺国庆 | Coke passivating agent composition and preparation method thereof |
| CN102041129A (en) * | 2010-12-02 | 2011-05-04 | 中国科学院过程工程研究所 | Coke passivator containing trace additives as well as preparation and use method of additives |
| KR20140102620A (en) * | 2013-02-14 | 2014-08-22 | 주식회사 후상 | compound for blunting reaction of coke and method for improving coke |
Non-Patent Citations (1)
| Title |
|---|
| 陈素枝等: "《工业生产技术》", 30 September 1991, 辽宁大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142121A (en) * | 2017-06-01 | 2017-09-08 | 河北金百祥科技有限公司 | Coke modification agent and preparation method thereof and coke modification method |
| CN107142121B (en) * | 2017-06-01 | 2020-05-19 | 河北金百祥科技有限公司 | Coke modifier, preparation method thereof and coke modification method |
| CN109022098A (en) * | 2018-08-17 | 2018-12-18 | 宁波敬业控股集团有限公司 | Coke deactivator and preparation method thereof |
| CN109022098B (en) * | 2018-08-17 | 2020-08-28 | 宁波敬业控股集团有限公司 | Coke passivator and preparation method thereof |
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Application publication date: 20160810 |