Claims
- 1. A method of preventing fouling on high temperature metal surfaces of oil heat exchangers by utilization at the metal surface an antifouling amount of a compound selected from the following formula: ##STR7## X = NH.sub.2, NHR, NHCH.sub.2 CHOHR (R = straight or branched chain alkyl containing 2 to 20, preferably 6 to 16, carbon atoms)
- Y = h, ch.sub.2
- m = ammonia, amine containing 1-54 carbons where the total number of carbon atoms in X and M is .gtoreq. 8 but .ltoreq. 54
- n .gtoreq. 1.
- 2. The method of claim 1 wherein X = NH.sub.2.
- 3. The method of claim 1 wherein X is a member selected from the group consisting of NHR or NHCH.sub.2 CHOHR.
- 4. A method of preventing fouling and removing foulant from metal surfaces of oil heat exchangers at high temperatures which consists of applying in a dosage range of about 20-500 ppm to said metal surfaces a compound selected from the following formula: ##STR8## X = NH.sub.2, NHR, NHCH.sub.2 CHOHR (R = straight or branched chain alkyl containing 2 to 20, preferably 6 to 16, carbon atoms)
- Y = h, ch.sub.2
- m = ammonia, amine containing 1-54 carbons where the total number of carbon atoms in X and M is .gtoreq. 8 but .ltoreq. 54
- n .gtoreq. 1.
- 5. The method according to claim 4 wherein the dosage range is about 40-300 ppm.
- 6. The method according to claim 4 wherein X = NH.sub.2.
- 7. The method according to claim 4 wherein X is a member selected from the group consisting of NHR or NHCH.sub.2 CHOHR.
Parent Case Info
This is a continuation-in-part application of pending Ser. No. 692,554, filed June 3, 1976, now abandoned which was a continuation of Ser. No. 550,874 filed Feb. 19, 1975 (now abandoned), which was a division of Ser. No. 491,011 filed July 23, 1974 (now abandoned).
US Referenced Citations (3)
Non-Patent Literature Citations (1)
Entry |
Puschel et al., Tenside, 5, 193 (1968). |
Divisions (1)
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Number |
Date |
Country |
Parent |
491011 |
Jul 1974 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
550874 |
Feb 1975 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
692554 |
Jun 1976 |
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