Water → Boric acid--propane-1,2-diol (1/1)

Participants

Reaction Conditions

Reaction Steps

A solution of propylene glycol borate in xylene is prepared by heating at 50° C. while stirring a mixture of 46.4 g propylene glycol, 41 g boric acid and 300 ml xylene. The water formed is eliminated by azeotropic distillation. There are obtained 314 g of a solution with 2.6% boron; in the reactor described above in Example 1 there are introduced 34.6 g of the propylene glycol borate solution, 16.61 g C16 -alkyl benzene sulfonic acid with 96% of active matter and a molecular weight of 430, 24.4 g diluent oil, 112 ml xylene, 7 ml methanol and 23.8 g slaked lime with a purity of 99%.

Provenance & Evidence