Method for the Processing and Transport of Hexane-1,6-Diamine or Pentane-1,5-Diamine

A method for producing a polyamide or an aliphatic diisocyanate comprising the steps of:

• a) providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% hexane-1,6-diamine or pentane-1,5-diamine;
• b) partially removing water from said first composition by distillation at a first production location, whereby a second composition is generated, said second composition including the hexane-1,6-diamine or pentane-1,5-diamine and 1 wt.-% to 35 wt.-% water;
• and
• c) transporting said second composition during a span of time t from the first production location to a second production location, wherein the span of time includes times for optional temporary storage of at least 6 h;
• d) optionally further purifying the second composition at the second production location, thus generating a third composition;
• and either
• e) phosgenating the second and/or the optionally obtained third composition at the second production location so that hexane-1,6-diamine or pentane-1,5-diisocyanate is generated;
• or
• f) polycondensing the second and/or the optionally obtained third composition at the second production location so that a polyamide based on hexane-1,6-diamine or pentane-1,5-diamine is generated;
• or
• g) converting the second and/or the optionally obtained third composition with a dicarboxylic acid to the diamine-dicarboxylic acid salt.