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AssigneeSolvay (Societe Anonyme)
InventorsJosselin Bobet, Christian Franck
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Use of a composition comprising silicon, oxygen and at least one of calcium, potassium, or titanium, as a material for coating an equipment or as a constituent material of equipment, intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water. The use of the composition may provide a method for reducing corrosion of the equipment, for decreasing the frequency of replacement of the equipment and/or for lowering the risks linked to equipment breakage and leak. The equipment which is intended to be in contact with the mixture may be used in a process for manufacturing a chlorohydrin, in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture of the two, is reacted with a chlorinating agent that contains hydrogen chloride.
A method for reducing corrosion of an equipment intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water, said method comprising utilizing a composition comprising silicon, oxygen and calcium as a material for coating said equipment or as a constituent material of equipment, wherein silicon is present in an amount higher than or equal to 235 g of Si per kg of composition and calcium is present in an amount lower than or equal to 25 g of Ca per kg of composition.
A method for reducing corrosion of an equipment intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water, said method comprising utilizing a composition comprising silicon, oxygen and potassium as a material for coating said equipment or as a constituent material of equipment, wherein, silicon is present in an amount higher than or equal to 235 g of Si per kg of composition and potassium is present in an amount higher than or equal to 4 g of K per kg of composition.
A method for reducing corrosion of an equipment intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water, said method comprising utilizing a composition comprising silicon, oxygen and titanium as a material for coating said equipment or as a constituent material of equipment, wherein silicon is present in an amount higher than or equal to 235 g of Si per kg of composition and titanium is present in an amount lower than or equal to 10 g of Ti per kg of composition.
10-13. (canceled)
A method for decreasing the frequency of replacement of an equipment intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water and lowering the risks linked to equipment breakage and leak, said method comprising utilizing a composition as a material for coating said equipment or as a constituent material of said equipment, wherein said composition comprises oxygen and silicon in an amount higher than or equal to 235 g of Si per kg of composition and further comprises at least one element selected from the group consisting of calcium present in an amount lower than or equal to 25 g of Ca per kg of composition;
Dependencies are inferred from the claim text.