| 摘要 |
PCT No. PCT/NL85/00026 Sec. 371 Date Feb. 26, 1986 Sec. 102(e) Date Feb. 26, 1986 PCT Filed Jun. 27, 1985 PCT Pub. No. WO86/00288 PCT Pub. Date Jan. 16, 1986.It has been shown that magnesiumsilicates, particularly Mg-rich olivine, is very advantageous for neutralizing waste sulfuric acid. A silicagel and a Fe/Mg-containing liquid are formed. The experiments show that a distinct separation of the silicagel from the Fe-containing liquid is possible in case the neutralization process is performed in an inert atmosphere. After separation of the SiO2-rich gel a Fe-V precipitate may be formed by means of aeration. The SiO2 gel may be rinsed well, so that an acceptable product is formed that e.g. is useful in the concrete industry. The liquids formed are MgSO4 rich. They may simply be drained into sea-water. |
