SU903354A1 - Charge for producing spinel refractory materials - Google Patents
Charge for producing spinel refractory materials Download PDFInfo
- Publication number
- SU903354A1 SU903354A1 SU802889459A SU2889459A SU903354A1 SU 903354 A1 SU903354 A1 SU 903354A1 SU 802889459 A SU802889459 A SU 802889459A SU 2889459 A SU2889459 A SU 2889459A SU 903354 A1 SU903354 A1 SU 903354A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- charge
- tannin
- refractory materials
- alumina
- magnesite
- Prior art date
Links
- 229910052596 spinel Inorganic materials 0.000 title claims description 7
- 239000011029 spinel Substances 0.000 title claims description 7
- 239000011819 refractory material Substances 0.000 title claims description 4
- 239000000203 mixture Substances 0.000 claims description 8
- 239000001095 magnesium carbonate Substances 0.000 claims description 6
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 6
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 5
- 229920000609 methyl cellulose Polymers 0.000 claims description 5
- 239000001923 methylcellulose Substances 0.000 claims description 5
- 235000010981 methylcellulose Nutrition 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 2
- 235000018553 tannin Nutrition 0.000 claims 4
- 229920001864 tannin Polymers 0.000 claims 4
- 239000001648 tannin Substances 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
(54) ШИХТА ДЛЯ ИЗГОТОВЛЕНИЯ ИПИНБЛЬНЫХ ОГНЕУПОРОВ(54) CHARGE COMPONENT FOR THE MANUFACTURE OF IPINBLE REFRACTORIES
II
Изобретение относитс к огнеупорной промышленности и может быть использовано при получе1ши. шпинельных огнеупоров методом полусухого прессовани из тонкозернистых масс.This invention relates to the refractory industry and can be used to obtain it. spinel refractories by semi-dry pressing from fine-grained masses.
Известна шихта дл изготовлени алюмомагнезиальной шпинели, содержаща магнезит и глинозем в соотношении 0,4-0,8 1.The known charge for the manufacture of aluminum-magnesian spinel, containing magnesite and alumina in a ratio of 0.4-0.8 1.
Недостатком ашхты вл етс невысока плотность сырца.The disadvantage of ashkhta is the low density of the raw material.
Наиболее близким техническнм решением к предлагаемому вл етс состав пресс-порошка дл изготовлени шпинельных огнеупор-. ных изделий, содержащий дл повышени химической и термической стойкости необожжешою смесь магнезита и глинозема (6085 вес.%) и МдО менее 5 ммк (1540 вес.%) 2.The closest technical solution to the present invention is the composition of the press powder for the manufacture of spinel refractories-. containing products to increase the chemical and thermal resistance of an unburned mixture of magnesite and alumina (6085 wt.%) and MgO less than 5 mmk (1540 wt.%) 2.
Однако такой состав не позвол ет получить при полусухом прессовании сырец высокой плотности, обеспечивающий после обжига достаточно низкий коэффициент газопрежицаемости шпинельных изделий.However, such a composition does not allow to obtain raw material of high density during semi-dry pressing, which provides, after firing, a sufficiently low gas permeability rate of spinel products.
Целью изобретени вл етс повышенне плотности сырца из смеси магнезита и глино зема и сниженне газопроницаемости шпинельных изделий после .The aim of the invention is to increase the raw density of the mixture of magnesite and clay and reduce the gas permeability of the spinel products after.
Дл достижени указанной цели известна шихта содержит дополнительно метилцеллюлозу и искусственный дубитель таннид прн следующем соотношении компонеитов, вес.%: Магнезит25- 30To achieve this goal, the known mixture additionally contains methylcellulose and an artificial tannit tannide prn with the following ratio of componites, wt%: Magnesite25-30
Глинозем68,94-73.8Alumina 68,94-73.8
10ten
Метилцеллюлоза0,05-1,0Methyl cellulose 0.05-1.0
ИскусственныйArtificial
дубитель тан1шд0,01-0,2tanning agent tan1shd0,01-0,2
Массу готов т по следующей технологии. Тонкойзмельченные магнезит и глинозем The mass is prepared according to the following technology. Fine ground magnesite and alumina
15 смешивают в указанном сротиошении и увлажн ют раствором, содержащим метилцеллюлозу и ташшд. Массу прессуют, после чего из нее готов т дроблением гранулы, которые также увлажн ют раствсфом мет пцел20 люлозы с таннидом.15 are mixed in the above form and moistened with a solution containing methylcellulose and tashshd. The mass is compressed, after which it is prepared by crushing granules, which are also moistened with a solution of meth Pcel 20 Lulose with tannide.
Из смеси прессуют издели и обжигают при 1650-1750° С.From the mixture pressed products and burned at 1650-1750 ° C.
3903354439033544
Конкретные составы шихт и свойства из-при 1650° в течение 6 ч приведены вSpecific compositions of the charge and properties due to at 1650 ° for 6 h are given in
далий, изготовленных .из них, обожжешвыхтаблице.Daly made. Of them, burn the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802889459A SU903354A1 (en) | 1980-02-29 | 1980-02-29 | Charge for producing spinel refractory materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802889459A SU903354A1 (en) | 1980-02-29 | 1980-02-29 | Charge for producing spinel refractory materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU903354A1 true SU903354A1 (en) | 1982-02-07 |
Family
ID=20880739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802889459A SU903354A1 (en) | 1980-02-29 | 1980-02-29 | Charge for producing spinel refractory materials |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU903354A1 (en) |
-
1980
- 1980-02-29 SU SU802889459A patent/SU903354A1/en active
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