发明名称 |
METHOD AND COMPOSITION TO DECREASE IRON SULFIDE DEPOSITS IN PIPE LINES |
摘要 |
<p>The levels of iron sulfide present in a conduit, such as a pipeline, are reduced by contacting the conduit, on an inner surface, with a composition obtained from an aqueous solution containing at least one compound of Formula (I) and at least one amine or corresponding ammonium derivative in the presence of a solvent, wherein X is an anion of valency n. Preferably, the pH of the solution is about 8. Alternatively, the method employs a composition comprising tris (hydroxymethyl) phosphine (TRIS) and at least one amine or corresponding ammonium derivative. The amine preferably is ammonia or a primary alkylamine. The compositions readily complex and thereby dissolve deposits of iron (II) sulfide, removing them from the conduit.</p> |
申请公布号 |
WO03016432(A1) |
申请公布日期 |
2003.02.27 |
申请号 |
WO2002US21328 |
申请日期 |
2002.08.14 |
申请人 |
SYNERGY CHEMICAL, INC.;MATTOX, MARK, ANDREW;VALENTE, EDWARD, J. |
发明人 |
MATTOX, MARK, ANDREW;VALENTE, EDWARD, J. |
分类号 |
C09K3/00;B08B9/02;C09K8/528;C09K13/00;C09K13/02;C10G75/04;C11D7/06;C11D7/36;C11D11/00;C23F11/167;C23F14/02;C23G1/24;F16L58/10;(IPC1-7):C09K13/02;B08B7/00;B08B3/14;B08B3/00;B08B9/00;B08B9/027 |
主分类号 |
C09K3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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