发明名称 WERKWIJZE VOOR HET AFSCHEIDEN VAN VASTE-STOFDEEL- TJES UIT EEN DISPERSIE DAARVAN IN EEN VLOEISTOF.
摘要 1490718 Purifying water SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Dec 1974 [19 Dec 1973] 54420/74 Heading ClC Water containing dispersed matter is purified by expansion therein of water containing a gas (e.g. air) under pressure wherein the separation is carried out in a tall vertical floatation zone the dispersion moving from the top downward in countercurrent to the gas released on expansion, solid material being separated in the upper part of the zone and clarified water discharged in the lower part.
申请公布号 NL7317363(A) 申请公布日期 1975.06.23
申请号 NL19730017363 申请日期 1973.12.19
申请人 SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. TE 'S-GRAVENHAGE. 发明人
分类号 B03D1/02;B03D1/24;C02F1/24;(IPC1-7):B03D1/24 主分类号 B03D1/02
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