| 发明名称 |
WERKWIJZE VOOR HET BEREIDEN VAN FOSFORZUUR. |
| 摘要 |
In the prodn. of phosphoric acid, a comminuted raw material contg. minerals and at least 40% elementary phosphorus is combusted at 1500-1800 deg.C in the medium of an oxygen-contg. gas with a 10-50% excess of oxygen to give molten slag and gases contg. phosphoric anhydride, the molten slag is separated off at 1200-1400 deg.C, and the gases are hydrated to give phosphoric acid. The combustion is carried out in the presence of steam in an amt. of 1-40%, based on the mass of the raw material, with a molten slag specific surface area of 6-12 square metres per tonne raw material per hour. The slag sepd. off is cooled at a rate of 10000-10000 deg.C/second. A highly concd. phosphate material is produced suitable for use as a fertiliser or feedstuff simultaneously with the prodn. of highly pure phosphoric acid. The process minimises phosphorus losses, and eliminates the formation of pollutant by products. |
| 申请公布号 |
NL177303(C) |
申请公布日期 |
1985.09.02 |
| 申请号 |
NL19800001643 |
申请日期 |
1980.03.20 |
| 申请人 |
PROIZVODSTVENNOE OBIEDINENIE "TEKHENERGOKHIMPROM" TE MOSKOU EN LENINGRADSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT OSNOVNOI KHIMICHESKOI PROMYSHLENNOSTI TE LENINGRAD, U.S.S.R. |
发明人 |
MUKHAN DZHUMGALIEVICH ATABAEV;ANATOLY ILICH RUDIK BEIDEN TE DZHAMBUL;DAVID NAUMOVICH SOSCHIN;SEMEN FEDOROVICH NONIN;GRIGORY FEDOROVICH BALJUK;ASKOLD FRIDRIKHOVICH GOKHGUT;KONSTANTIN KONSTANTINOVICH DORRENDORF;VLADIMIR VLADIMIROVICH YAKIMJUK;JURY MIKHAILOVICH SILAKOV;VLADIMIR YAKOVLEVICH KRUGLYANSKY;VLADIMIR NIKOLAEVICH NOVOSELTSEV;ALEFTIN IOSIFOVICH PETELIN ALLEN TE MOSKOU;PANAET ALEXANDROVICH DIAMANTIDI TE CHIMKENT;JURY IVANOVICH GOLOVLEV TE LVOV;NIKOLAI MAXIMOVICH BOBIR;DUGLAS ZIYAEVICH SERAZETDINOV;VOLDEMAR ALEXANDROVICH URIKH ALLEN TE ALMA-ATA;IVAN |
| 分类号 |
A23K1/175;C01B25/20;C05B13/02 |
主分类号 |
A23K1/175 |
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