Abstract:
A method for separating hydrogen fluoride from a chemical mixture is provided. In the process of the invention, hydrogen fluoride is separated from a chemical mixture containing hydrogen fluoride by contacting the chemical mixture with a hydrogen fluoride binder. The separated hydrogen fluoride may be recovered from the hydrogen fluoride binder. The hydrogen fluoride binder is a synthetic water-soluble polymer, preferably sodium polyacrylate.
Abstract:
A feedstock is alkylated in presence of a hydrogen fluoride containing catalyst, which also comprises a carrier. Possible carriers are: a synthetic water soluble polymer like sodium acrylate or a salt like ammonium trifluoroacetate, ammonium sulfate or ammonium methanesulfonate.
Abstract:
A method for separating hydrogen fluoride from a chemical mixture is provided. In the process of the invention, hydrogen fluoride is separated from a chemical mixture containing hydrogen fluoride by contacting the chemical mixture with a hydrogen fluoride binder. The separated hydrogen fluoride may be recovered from the hydrogen fluoride binder. The hydrogen fluoride binder is a synthetic water-soluble polymer, preferably sodium polyacrylate.
Abstract:
A method for separating hydrogen fluoride from a chemical mixture is provided. In the process of the invention, hydrogen fluoride is separated from a chemical mixture containing hydrogen fluoride by contacting the chemical mixture with a hydrogen fluoride binder. The separated hydrogen fluoride may be recovered from the hydrogen fluoride binder. The hydrogen fluoride binder is a synthetic water-soluble polymer, preferably sodium polyacrylate.
Abstract:
Methods for etching or removing oxide scale from a substrate by applying a composition containing a polymer and an effective amount of hydrofluoric acid and maintaining the composition on the substrate until the substrate is etched or the oxide scale is removed.
Abstract:
A feedstock is alkylated in presence of a hydrogen fluoride containing catalyst, which also comprises a carrier. Possible carriers are: a synthetic water soluble polymer like sodium acrylate or a salt like ammonium trifluoroacetate, ammonium sulfate or ammonium methanesulfonate.