2012 - Europe Direct Iasi

EUROINVENT 2012
organic system as a homogeneous mixture dispersed in
isopropyl or isoanyl alcohol, which contains 12...15%
propolis, 5...10% coniferous tree resin or saponified
colophony, 1.5...3% lyophilized oak tannin and 3...5%
polyethylene glycol of the PEG-1000 type.
9.4.
Process for water purification from hydrogen sulphide and
Title
sulphides
RUSU Vasile, NASTAS Raisa, MAFTULEAC Alexei,
Authors
PANIŞ Aliona, LUPAŞCU Tudor
Institution Academy of Sciences of Moldova, Institute of Chemistry
Patent no. MD 4142 B1 2011.12.31
The invention relates to a process for water purification
from hydrogen sulphide and sulphides and may be used in
communal farms, fish breeding enterprises, public
Description aquariums, autonomous filters, as well as for purification
of ground waters.
The process consists in the use of modified diatomite,
obtained by pre-treatment of diatomite with excess of 30%
MnCl2 solution at determined conditions.
9.5.
Title Inhibitor of steel corrosion in water
Authors
LOZAN Vasile, PARŞUTIN Vladimir, ŞOLTOIAN
Nicolae, CERNÎŞEVA Natalia, COVALI Alexandr,
Institution Academy of Sciences of Moldova, Institute of Chemistry
Patent no. MD 359 Z 2011.11.30
The invention relates to the field of protection of metals
from corrosion in water and can be used for inhibition of
steel corrosion in closed pipeline systems. Adipic acid
dihydrazide with the formula:
Description
is used as an inhibitor of steel corrosion in water at a
concentration of 0.05...1.00 g/L. The result is a significant
reduction of corrosion losses and increase of the life of
pipelines.
Class 9
137