Gas Research Institute

Zap-lok Pipeline Systems, Inc.

Robert J Logan

Gordon R Chapman

Donald R Andruik

Andre Stenzel

Edwin D McCrory

James V Van Matre

Robert M Richmond

Michael W Singleton

Teresa Leigh Barr

A method for making a lubricating fast-setting epoxy compound comprising: mixing under vacuum dispersion a first micro-crystalline filler, a first talc, and a titanium oxide into a hardenable epoxide containing liquid forming an epoxy base. A second micro-crystalline filler, a second talc, and a hydrocarbon resin are mixed forming an accelerator mixture. A methylamino accelerator is mixed into the accelerator mixture forming an epoxy accelerator. Substantially equal amounts of the epoxy base and the epoxy accelerator are mixed to form the lubricating fast-setting epoxy compound having a high lubricity and a curing time ranging from two minutes to twelve minutes. Adjusting the mixing speed and temperature of the epoxy base, the accelerator mixture, and the epoxy accelerator is contemplated to promote homogeneity. The epoxy base can also include a flatting agent. The epoxy accelerator can also include a modified aliphatic amine, an acrylic resin, a coloring agent, or combinations thereof.

Method for making a lubricating fast setting epoxy composition

A system and method for removing asbestos and other hazardous solids from a slurry collected during removal of coatings from pipelines, equipment and other structures. The slurry is collected in a collection pan that is attached to a shroud of a hydrocleaning machine. Contaminated air and the slurry is transferred to a vacuum hopper. The contaminated air is removed from the vacuum hopper. The contaminated air is filtered to remove solid particles. Solid particles are preferably separated from the slurry by passing the slurry through various stages of filters. Pumps are used to transfer the slurry from the collection pan through the filter stages. A first flocculent is injected into the slurry to coagulate the solid particles into individual masses. A second flocculent can be injected into the slurry in order to coagulate a majority of the remaining solid particles. The coagulated masses of solid particles are removed by passing the slurry through a weir or a screen shaker. The slurry discharged from the weir or screen shaker is then passed through further filters.

System and method for removing asbestos and other solid particles from a

A system and method for removing asbestos and other hazardous solids from a slurry collected during removal of insulation from pipelines, equipment and other structures. The slurry is collected in a collection pan that is attached to a shroud of a hydrocleaning machine. Solid particles are separated from the slurry by passing the slurry through various stages of filters. Pumps are used to transfer the slurry from the collection pan through the filter stages. A first flocculent is injected into the slurry to coagulate the solid particles into individual masses. A second flocculent is injected into the slurry, downstream from the injection point of the first flocculent, in order to coagulate a majority of the remaining solid particles. The coagulated masses of solid particles are removed by passing the slurry through a screen shaker. The slurry discharged from the screen shaker is then passed through further filters.

System and method for removing asbestos particles from a slurry

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Houston, TX, United States of America

Robert J Logan