Description
Cationic surface active agent didodecyl dimethyl - polyamine
-quatemary diammonium salt
Alias:Â Double
alkyl polyamine -quatemary diammonium salt; Dimethyl
dilaurylammonium chloride
Properties:
It owns
bi-function of both double-alkyl single-quatemary ammonium salt and
single-alkyl quatemary diammonium salt, and features excellent
emulsification, adsorption, softening, anti-static and
anti-corrosion effect, sterilization and
deemulsification.
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Applications:
Used as
emulsifier, softener, adsorbent, bactericide and anti-static agent
in ore flotation, asphalt emulsification, fabric softening, metal
corrosion prevention, plastics processing and sterilization and
algae removal.
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Sterilization
of injection water in oil field:
There is a lot
of microbials in reinjection sewage, such as sulphate-reducing
bacteria (SRB), iron bacteria and saprophytic bacteria. The growth,
metabolism and reproduction of the microbials will cause serious
corrosion to drilling device, injection pipe and other metal
material and pipe clogging and lead to the reduction of water
injection, oil production and oil quality, difficulty in oil
processing and great economic loss. The use of bactericide is still
the main method for controlling the bacterials in reinjection
sewage nowadays, and the available bactericides are all belong to
chlorine dioxide, aldehyde and quatemary ammonium salt in the
domestic market more or less with disadvantages of large dosage and
toxicity and serious pollution. The bactericide of quatemary
ammonium salt features good sterilization, but the drug resistance
of SRB is improved after long-time service leading to increased
dosage and cost. The development of novel efficiency bactericide is
imperative. As a typical novel bactericide, quatemary diammonium
salt, also named quaternary ammonium Gemini surfactant, attracts
extensive attention with its low-toxicity and good performance. It
has better sterilization than ***7 (dodecyl dimethyl benzyl
ammonium chloride), and can be alternatively use with other
chemicals to inhibit the drug resistance and reduce cost.
Meanwhile, the quatemary diammonium salt also features excellent
water solubility and good corrosion inhibition of carbon
steel.
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