Title:
MEANS AND METHOD OF PROTECTION OF THE INNER SURFACE OF PIPELINE AGAINST CORROSION AND METHOD OF OBTAINING OF THAT MEANS
Document Type and Number:
WIPO Patent Application WO/1986/002426
Kind Code:
A1
Abstract:
A means of protection of the inner surface of the pipeline against corrosion consists of an alloy of sodium polyphosphate or one-substituted potassium phosphate with the silicate of an alkaline metal or silica taken at the proportion of 9-50:1, correspondingly. A method of obtaining of that means consists in mixing the sodium polyphosphate or one-substituted potassium phosphate with the silicate of an alkaline metal or silica at the proportion of 9-50:1, correspondingly, and melting this mixture at a temperature of 800-1000oC with subsequent cooling of the obtained alloy up to achieving a vitreous structure and getting the desired product. A method of protection of the inner surface of the pipeline against corrosion consists in introducing in the working pipeline the above-mentioned means at a concentration of 0.3-3.5 mg/l, evaluated for P2O5 into the pipeline for water or at a concentration of 25-250 mg/l, evaluated for phosphorus, into the pipeline for sea water.
Inventors:
SHISHKIN VIKTOR VASILIEVICH (SU)
SUSHKOV YAROSLAV PETROVICH (SU)
SERAZETDINOV DUGLAS ZIYAEVICH (SU)
LUKIN EVGENY GEORGIEVICH (SU)
KAPRALOVA VIKTORIA IGOREVNA (SU)
POLYANSKAYA TAMARA SEMENOVNA (SU)
ABRAMOVA LJUBOV IVANOVNA (SU)
SHAPOVALOV JURY PETROVICH (SU)
OLEINIK VIKTOR NIKOLAEVICH (SU)
KRYAZHEVSKIKH NIKOLAI FEDOROVI (SU)
CHERNYAI ALEXANDR IVANOVICH (SU)
SUSHKOV YAROSLAV PETROVICH (SU)
SERAZETDINOV DUGLAS ZIYAEVICH (SU)
LUKIN EVGENY GEORGIEVICH (SU)
KAPRALOVA VIKTORIA IGOREVNA (SU)
POLYANSKAYA TAMARA SEMENOVNA (SU)
ABRAMOVA LJUBOV IVANOVNA (SU)
SHAPOVALOV JURY PETROVICH (SU)
OLEINIK VIKTOR NIKOLAEVICH (SU)
KRYAZHEVSKIKH NIKOLAI FEDOROVI (SU)
CHERNYAI ALEXANDR IVANOVICH (SU)
Application Number:
PCT/SU1985/000089
Publication Date:
April 24, 1986
Filing Date:
October 16, 1985
Export Citation:
Assignee:
TREST JUZHVODOPROVOD (SU)
ALMA ATINSKIJ I INZHENEROV (SU)
INST CHIM AN KAZACH (SU)
ALMA ATINSKIJ I INZHENEROV (SU)
INST CHIM AN KAZACH (SU)
International Classes:
C23F11/18; (IPC1-7): F16L58/04
Foreign References:
| SU600109A1 | 1978-03-30 | |||
| US3973056A | 1976-08-03 | |||
| JP60260593B |
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