Abstract: The present invention relates to the use of hydrocarbon-rich gels as a safe storage or transportation form for liquid hydrocarbons and to a process for the safe storage and safe transportion of liquid hydrocarbons, characterised in thata) the hydrocarbon is converted into a hydrocarbon-rich gel by addition of a surfactant and water andb) after storage or transportation has taken place, the hydrocarbon-rich gel is broken down again.

Abstract: The use of products of the reaction of alkenyl-spirobislactones of the formula ##STR1## in which R is in each case C.sub.8 -C.sub.200 -alkenyl, with amines of the formulaNR.sup.1 R.sup.2 R.sup.3in which R.sup.1, R.sup.2 and R.sup.3 may be identical or different and at least one of these groups R.sup.1, R.sup.2 or R.sup.3 is C.sub.8 -C.sub.36 -alkyl, C.sub.8 -C.sub.36 -alkenyl or cyclohexyl and the other groups are hydrogen or a group of the formula --(A--O).sub.x H or --(CH.sub.2).sub.n --NYZ, A is --C.sub.2 H.sub.4 -- and/or --C.sub.3 H.sub.6 --, x is a number from 1 to 20, n is 2 or 3 and Y and Z may be identical or different and are hydrogen or a group of the formula (--A--O).sub.x H, as paraffin-dispersants in middle distillates and crude oil.