The subject invention pertains to a continuous process for the production of aqueous paraffin emulsions. A primary emulsion is first formed by subjecting water and paraffin in admixture with an emulsifier and a portion of recycled primary emulsion to heat and turbulent flow. The stability of the primary emulsion is then improved by mixing said primary emulsion with another emulsifier and a portion of a recycled secondary emulsion and subjecting the mixture to heat and turbulent flow to produce said secondary emulsion. Finally, additional stability is achieved by homogenizing said secondary emulsion to produce a product emulsion.
A method for moisture-proofing refractory fiber material by applying paraffin emulsified in water to the material, drying it, and then coating it with vinyl mastic paint.
The method of sealing a polluted area containing pollutants to prevent transport of the pollutants from the polluted area includes forming a sealing barrier layer around the polluted area underneath and/or next to it by feeding a liquid sealing material into the liquid permeable ground and fissures under and/or next to the polluted area or into the polluted area by a plurality of injection lances and/or pressure probes from above ground or from the surface of the polluted area. The liquid sealing material is a Montan wax emulsion or a mixture of the emulsion with earth and/or pollutants, the Montan wax emulsion is made from 10 to 20 parts by weight Montan wax, 3 to 5 parts by weight emulsifier, 100 parts by weight of water and from 0 to 10 by weight of a stabilizer.
Pressure impregnation methods for preserving wood. The impregnant combines a wood preservative with a wax-surfactant-water emulsion. A cationic surfactant component made up of two different surfactants is preferred.
