| 摘要 |
The present invention concerns the use of at least one compound A comprising at least one —SH or —S−, M+ group, at least one —C-G-C— chain, in which G represents an atom from column 16 of the periodic table, not comprising a carboxy group —C(═O)—OH or —C(═O)—O−, and of a molar mass of between 90 g·mol−1 and 1000 g·mol−1, as an additive in a formulation inhibiting corrosion in metals used in the oil industry, and more generally in any kind of industry involving the drilling of ores or fossil compounds, such as gas or oil, in order to improve both the anti-corrosion performance and the storage stability of same. The invention also concerns said corrosion-inhibiting formulations comprising at least one compound A. |
| 主权项 |
1. A method of improving both the anti-corrosion effectiveness and stability on storage of a corrosion-inhibiting formulation, comprising using as an additive in the corrosion-inhibiting formulation at least one compound A exhibiting at least the following characteristics:
the compound A carries at least one —SH or —S−Mp+ group, where Mp+ represents a cation of an alkali metal (Group 1) or of an alkaline earth metal (Group 2), or of a metal of Groups 7, 8, 9, 10, 11 or 12 of the Periodic Table of the Elements, p representing the valency of said metal and being able to take the value 1, 2 or 3, the compound A comprises at least one —C-G-C— sequence, where G represents an atom of Group 16 of the Periodic Table of the Elements, and C preferably represents the oxygen atom or the sulfur atom, the compound A does not comprise a carboxyl —C(↑O)—OH or —C(↑O)—O− group, and the molar mass of the compound A is between 90 g·mol−1 and 1000 g·mol−1, limits included. |
