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2 021 228

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IPC

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Application

4944218/33, 1991-06-04

(22)

Actual filing date

1991-06-04

(45)

Published

1994-10-15

(72)

Inventor

Gropjanov V.M.Malysheva N.M.Vezikova R.M.Nekrasova V.B.Kuznetsov G.I.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Institut Nauchno-Issledovatel'Skikh I Proektnykh Rabot Ogneupornoj Promyshlennosti

MASS FOR ROASTING REFRACTORY ARTICLE FORMING Russian patent published in 1994 - IPC

Abstract RU 2021228 C1

FIELD: refractory materials. SUBSTANCE: mass has, wt.-%: calcium oxide 53-56.5; magnesium oxide 0.5-39, and a binder - paste isolated after solvent distillation from filtrate of sulfate soap (Neutrol) extraction, or paste isolated after solvent distillation from filtrate of extraction product of saponified tall pitch Neutrol II/or a mixture of Neutrol or Neutrol II with paraffin at the ratio 2: 1 3-8. Article properties: compression limit strength after 1 day storage is 51.7-65.6 MPa, after 7 days is 21.2-30.1 MPa, thermal cycling (1300 C - air) is 25 heat changes. EFFECT: enhanced quality of mass. 1 tbl

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RU 2 021 228 C1

Authors

Gropjanov V.M.

Malysheva N.M.

Vezikova R.M.

Nekrasova V.B.

Kuznetsov G.I.

Dates

1994-10-15—Published

1991-06-04—Filed

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