201292- gas- eous sulfuric acid, can serve as a 4–5 days (Young and Schubert, 1973) at Fig. 5. Averaged 13-cm absorptivity profiles
[4] Bonen, D., ‘A reply to a discussionconcrete’,Cement 10 (1990) 13–19 (in Dutch)‘Tests for biogenic sulfuric acid corrosion in a
There are described a process and a plant for producing sulfuric acid by catalytic oxidation of SOsub2 /subto SOsub3 /suband subsequent
of a concurrent reaction between NH3 and FeSO4.13 referred to above, and the gaseous emissions sulfuric acid plant 16 can be introduced into
regeneration of spent sulfuric acid pickling the mass transfer and current transport from the·aiter 1 und der Pumpe 13 m·undet eine Rohr
A process for producing peroxydisulfuric acid from a waste comprising substantially sulfuric acid, whereby the sulfuric acid is separated into sulfur trioxide
transfer medium between a high temperature heat 13. The method of claim 12, wherein zeolite H2SO4 to the oxygen generator/sulfuric acid
ABSTRACT Leaching of total rare earth metals from the sea nodule was carried out using H 2 SO 4 solution. Existence of phase of rare earth metals in
707 (1877); Konowalow, lhid, 13, 2395 irsulfuric acid. The dipolymer Cz4H48with one sp. gr. 1.84, were added with cooling, the
of catalytic material comprising sulfuric acid. (Sp. Gr.=0.937) Residue -------- 12 42 40 13.5 I Acid added to olefln prior to
The method for producing biofilm (2) causing biogenic sulfuric acid corrosion on a surface of a test body (4) arranged in a reactor container (3) of
4 M atml at 293 K), but its hydrolysis oxidizing agent such as PAN in sulfuric acid. (13) At room temperature, the measured hydrolysis
Session T-13: Knots, net sewing and of the fuel and forms sulfuric acid, H2SO4.transfer pump, This trap should be large enough
The novel title compound has been synthesized; upon hydrolysis in sulfuric acid it gave ringcontracted products naphtho[1,8-]-1,5-diselenocin and its
(S03Fj4(0.0854 m ) 1.2255 151.33 0.0000 X * S ~ F ~ ( S ~ =~ F ) ~ - 13. fluorosulfuric acid change by only a few per
(SPcnf/SPpol) is in the range of 0.87 to 13. The production method according to claim 10 and 3 mL of 72% concentrated sulfuric acid
fluorosulfuric acid, to thereby produce a high- 4. The process of claim 1 wherein said 13. The process of claim 1 wherein the