CN1931792A - Refractory material of chromium solid solution - Google Patents

Refractory material of chromium solid solution Download PDF

Info

Publication number
CN1931792A
CN1931792A CN200610048079.0A CN200610048079A CN1931792A CN 1931792 A CN1931792 A CN 1931792A CN 200610048079 A CN200610048079 A CN 200610048079A CN 1931792 A CN1931792 A CN 1931792A
Authority
CN
China
Prior art keywords
slag
chromium
solid solution
refractory material
chrome green
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200610048079.0A
Other languages
Chinese (zh)
Other versions
CN100391904C (en
Inventor
赵文厚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37877838&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1931792(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CNB2006100480790A priority Critical patent/CN100391904C/en
Publication of CN1931792A publication Critical patent/CN1931792A/en
Application granted granted Critical
Publication of CN100391904C publication Critical patent/CN100391904C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The refractory material of chromium solid solution is prepared with chrome green 5-60 wt%, chromium residue 40-95 wt%, and binding agent 1-10 wt%. The refractory material of chromium solid solution with relatively high Cr2O3 content is easy to combine with slag to form high smelting point and high viscosity matter, so that it has high slag permeation resistance and high slag erosion resistance. It is suitable for use in not only coal gasifying furnace but also acidic slag condition with, say, non-ferrous metal slag. It has wide application range, long service life, excellent performance, high hydration resistance, no environmental pollution and low production cost.

Description

A kind of refractory material of chromium solid solution
Technical field
The invention belongs to a kind of refractory materials, particularly a kind of refractory material of chromium solid solution.
Background technology
Along with Chinese economic development, the application of coal gas more and more widely, though Sweet natural gas has replaced coal gas within the specific limits, coal gas remains the indispensable energy in some field and area.Coal gas is produced with coal gasifier, and at 1300 ℃～1500 ℃, operating pressure is more than 2Mpa usually for the furnace temperature of coal gasifier.The major ingredient of coal gas is H 2And CO, and a certain amount of water vapor, the major ingredient of slag is SiO 2About 15%, the AL of about 40%, CaO 2O 3About 5%, the Na of about 25%, FeO 2O about 2%.Owing to contain water vapor in the coal gasifier atmosphere, and CaO and MgO aquation very easily, therefore, the furnace lining of coal gasifier should not adopt magnesia or the magnesium calcareous material, and magnesian is the not erosion of resistance to acid slag and infiltration also, when using as furnace lining in coal gasifier, its life-span is very of short duration.High alumina refractories is owing to contain SiO 2, also be not suitable for coal gasifier, because at H 2With SiO under the CO reducing atmosphere 2Can be reduced to SiO gas, SiO gas can be generated SiO by steam oxidation again 2, and in airflow line, under the deposition, cause gas pipe line to stop up.Therefore, contain SiO 2High alumina brick or corundum brick is neither can be applicable to coal gasifier.At present, the pure Cr of the many employings of the furnace lining of coal gasifier 2O 3Brick or Cr 2O 3The chrome corundum brick made from corundum.Cr 2O 3Can form the high-melting-point material with many oxide compounds, improve the viscosity of infiltrating slag, therefore, anti-slag penetration is good especially.Chromic oxide can also resist the reduction of coal gas of coal gasifier, even reduction also is to generate high chromium metal and the CrO of fusing point, and chromium still is the catalyzer of coal gasification reaction, is harmless to coal gasifier therefore.But pure Cr 2O 3Brick or Cr 2O 3The chrome corundum brick made from corundum is because raw materials used very expensive, and is difficult for burning till, and therefore, the price of its goods is very expensive, causes the gas production cost to rise, and economic benefit descends.
Summary of the invention
The technical problem to be solved in the present invention is, overcome that existing refractory materials is not suitable for that coal gasifier uses, work-ing life is short, and expensive problem, a kind of economical and practical, excellent property is provided, is suitable for the refractory material of chromium solid solution of coal gasifier working condition.
The present invention makes (by weight percentage) according to following prescription:
Chrome green: 5～60%;
Chromium slag: 40～95%;
Wedding agent: 1～10% of above-mentioned materials gross weight;
Wherein, the chromium slag is the waste residue of metal smelting chromium output, requires main chemical to be: Cr 2O 38～15%, AL 2O 370～88%;
The chrome green main chemical is: Cr 2O 3〉=95%;
Above-mentioned composition all by weight percentage.
Above-mentioned said chromium slag is as aggregate, and its granularity is 0.1～6mm, and chrome green is as matrix, and its granularity is≤0.1mm.
Above-mentioned said wedding agent is organic bond or inorganic bonding agent.
The satisfactory chromium slag of composition is carried out pulverization process, after the pulverizing, it is carried out magnetic separation handle, remove ferromagnetic material wherein; Then, the chromium slag is mixed with chrome green, adds wedding agent according to aforementioned proportion again according to aforementioned proportion, mix evenly after, compression moulding after the drying, is gone into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
The invention has the advantages that:
1, Cr in the refractory material of chromium solid solution of the present invention 2O 3The content height, easy and slag forms high-melting-point and viscosity thing, therefore, anti-slag penetration and aggressiveness are good, not only are suitable for using on coal gasifier, also are suitable for using under acid slag conditions such as non-ferrous metal slag, range of application is wide, long service life, technical feature excellence.
2, refractory material of chromium solid solution of the present invention also has the hydrability of good anti-water vapor, is containing H 2When using under the coal gasifier of CO and the acid slag condition, Cr in the refractory material of chromium solid solution 2O 3Can not be oxidized to sexavalent chrome and generate CrO 3Or CrO 3Salt, thereby can not cause environmental pollution, can make portion C r on the contrary 2O 3Be reduced to CrO or Cr, conversion reaction is a catalyzer and CrO or Cr are to gasification, helps coal gasification reaction.
3, the present invention adopts the waste residue of producing chromium metal to make main raw material, and production cost is lower, only is pure Cr 2O 3Brick or Cr 2O 3/ 3rd of a chrome corundum brick made from corundum has very big advantage, remarkable in economical benefits on price.
Embodiment
Embodiment 1:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 950kg as aggregate, and chrome green 50kg mixes both as matrix, add inorganic bonding agent phosphatase 11 00kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 2:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 800kg as aggregate, and chrome green 200kg mixes both as matrix, add inorganic bonding agent silica gel 10kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 3:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 400kg as aggregate, and chrome green 600kg mixes both as matrix, add inorganic bonding agent aluminum phosphate 50kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 4:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 500kg as aggregate, and chrome green 500kg mixes both as matrix, add organic bond spent pulping liquor 30kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 5:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 900kg as aggregate, and chrome green 100kg mixes both as matrix, add organic bond dextrin 80kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 6:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 600kg as aggregate, and chrome green 400kg mixes both as matrix, add organic bond syrup 40kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.
Embodiment 7:
The satisfactory chromium slag of composition is carried out pulverization process, and the chromium slag charge granularity after the pulverizing is 0.1～6mm, again it is carried out magnetic separation and handles, and removes ferromagnetic material wherein; The chrome green granularity is≤0.1mm, gets chromium slag 700kg as aggregate, and chrome green 300kg mixes both as matrix, add organic bond resol 35kg again, mix evenly after, compression moulding, after the drying, go into the high temperature kiln, burnt product under 1200 ℃～1700 ℃ high temperature.

Claims (3)

1, a kind of refractory material of chromium solid solution is characterized in that, it makes (by weight percentage) according to following prescription:
Chrome green: 5～60%;
Chromium slag: 40～95%;
Wedding agent: 1～10% of above-mentioned materials gross weight;
Wherein, the chromium slag is the waste residue of metal smelting chromium output, requires main chemical to be: Cr 2O 38～15%, AL 2O 370～88%;
The chrome green main chemical is: Cr 2O 3〉=95%;
Above-mentioned composition all by weight percentage.
2, refractory material of chromium solid solution according to claim 1 is characterized in that, above-mentioned said chromium slag is as aggregate, and its granularity is 0.1～6mm, and chrome green is as matrix, and its granularity is≤0.1mm.
3, refractory material of chromium solid solution according to claim 1 is characterized in that, above-mentioned said wedding agent is organic bond or inorganic bonding agent.
CNB2006100480790A 2006-10-20 2006-10-20 Refractory material of chromium solid solution Expired - Fee Related CN100391904C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100480790A CN100391904C (en) 2006-10-20 2006-10-20 Refractory material of chromium solid solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100480790A CN100391904C (en) 2006-10-20 2006-10-20 Refractory material of chromium solid solution

Publications (2)

Publication Number Publication Date
CN1931792A true CN1931792A (en) 2007-03-21
CN100391904C CN100391904C (en) 2008-06-04

Family

ID=37877838

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006100480790A Expired - Fee Related CN100391904C (en) 2006-10-20 2006-10-20 Refractory material of chromium solid solution

Country Status (1)

Country Link
CN (1) CN100391904C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417361A (en) * 2011-09-16 2012-04-18 中钢集团洛阳耐火材料研究院有限公司 Cr2O3-Al2O3 refractory material of anisotropic structure
CN102731126A (en) * 2012-07-25 2012-10-17 营口青花耐火材料股份有限公司 Composite spinel-zirconium refractory material for smelting colored heavy metal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1054243A (en) * 1990-02-23 1991-09-04 张晶廷 Method with production of building materials with waste chrome dregs
CN1144786A (en) * 1996-03-26 1997-03-12 东北大学 Chromium slag forsterite refractory material and its preparation method
CN1069612C (en) * 1998-07-24 2001-08-15 赵文厚 Refractory Mg-Al-Cr material and its production process
CN1064030C (en) * 1998-12-18 2001-04-04 锦州铁合金工商实业公司冶金建材厂 Technical process for producing refractory material Al-Cr brick by using chromium smelting sludge
CN1117044C (en) * 2000-03-27 2003-08-06 赵文厚 Refractory Cr-Al material
CN1315306A (en) * 2000-03-30 2001-10-03 赵文厚 Refractory Al-Cr-C material
CN1136164C (en) * 2001-06-07 2004-01-28 赵文厚 Refractory Al-Cr-Zr material
CN1197828C (en) * 2002-12-15 2005-04-20 赵文厚 Al-Cr-Ti refractory material
CN1296323C (en) * 2004-04-30 2007-01-24 洛阳耐火材料研究院 Composite refractory materials based on chrome

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417361A (en) * 2011-09-16 2012-04-18 中钢集团洛阳耐火材料研究院有限公司 Cr2O3-Al2O3 refractory material of anisotropic structure
CN102417361B (en) * 2011-09-16 2013-07-03 中钢集团洛阳耐火材料研究院有限公司 Cr2O3-Al2O3 refractory material of anisotropic structure
CN102731126A (en) * 2012-07-25 2012-10-17 营口青花耐火材料股份有限公司 Composite spinel-zirconium refractory material for smelting colored heavy metal
CN102731126B (en) * 2012-07-25 2013-12-04 营口青花耐火材料股份有限公司 Composite spinel-zirconium refractory material for smelting colored heavy metal

Also Published As

Publication number Publication date
CN100391904C (en) 2008-06-04

Similar Documents

Publication Publication Date Title
Lee et al. Evolution of in situ refractories in the 20th century
Ewais Carbon based refractories
CN101550016B (en) Magnesia chrome carbon coating and preparation method thereof
CN101391897A (en) Air brick for magnesia carbon ladle and method for producing the same
CN102115335A (en) Novel abrasion resistant silicon-mullite-nitrogen brick for transition zones of rotary cement kiln
CN102775156A (en) Unburned magnesium-aluminum spinel brick
CN109534788B (en) Low-chromium magnesia-chrome brick for glass kiln
CN101077523A (en) Method for preparing dry working lining
CN101654371A (en) Magnesium aluminum spinel-corundum-Sialon complex phase high-temperature resistant material and preparation method thereof
CN111995379A (en) Zirconium-containing corundum spinel brick for hazardous waste disposal equipment and preparation method thereof
CN113387687A (en) Environment-friendly dry material for steelmaking tundish working layer
CN100413808C (en) Manufacture of tundish nozzle pocket block filler using waste high-alumina brick and waste magnesium brick
CN100391904C (en) Refractory material of chromium solid solution
CN106045530B (en) Refractory material for blast furnace tapping channel by adopting waste refractory material
CN1420100A (en) High-temp alkali-resistant material and use therreof in ceramic filler
CN1117044C (en) Refractory Cr-Al material
Sugita Historical overview of refractory technology in the steel industry
CN1257124C (en) Special cement and its production process
CN113754410A (en) Low-carbon microporous magnesia carbon brick and preparation method thereof
CN109776101B (en) CA (certificate Authority)6-MA-Cr2O3-Al2O3Ladle lining castable and preparation method thereof
CN115286404B (en) Low-aluminum mullite castable for molybdenum-containing waste liquid incinerator and preparation method thereof
CN1197828C (en) Al-Cr-Ti refractory material
CN111423221B (en) Castable for rotary hearth furnace working layer and preparation method thereof
CN1179807C (en) Lining material of tundish for conticasting
CN1413950A (en) Anti-acid-base refractory pouring material of gas producer, industrial silicon furnace, heavy alkali waste solution incinerator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: JINZHOU GREAT WALL REFRACTORY MATERIAL CO.,LTD.

Assignor: Zhao Wenhou

Contract fulfillment period: 2008.7.30 to 2018.7.30

Contract record no.: 2009210000313

Denomination of invention: Refractory material of chromium solid solution

Granted publication date: 20080604

License type: Exclusive license

Record date: 20091231

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.30 TO 2018.7.30; CHANGE OF CONTRACT

Name of requester: JINZHOU GREAT WALL REFRACTORY MATERIALS CO.,LTD.

Effective date: 20091231

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080604

Termination date: 20211020