Dispersant and biodegradant formulations for treating hydrocarbon-polluted waters
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0218246
(1980-12-19)
|
우선권정보 |
FR-0031562 (1979-12-20) |
발명자
/ 주소 |
- Gatellier, Claude
- Plessis, Andree
- Gateau, Patrick
- Durand, Jean-Pierre
|
출원인 / 주소 |
- Institut Francais du Petrole
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
9 인용 특허 :
2 |
초록
Dispersant and biodegradant formulations are manufactured by admixing at least one melamine derivative with at least one compound having a hydroxy function, at least one phosphorus compound and at least one surfactive agent. Aqueous emulsions obtained from these formulations are also provided.
대표청구항
▼
1. A biodegradable composition which is both an oil dispersant and a nutrient for microorganisms, and which is useful for accelerating the microbiological degradation of petroleum materials in water, said composition comprising: (a) at least one assimilable nitrogen compound, said compound being
1. A biodegradable composition which is both an oil dispersant and a nutrient for microorganisms, and which is useful for accelerating the microbiological degradation of petroleum materials in water, said composition comprising: (a) at least one assimilable nitrogen compound, said compound being a condensation product of melamine and formaldehyde or a condensation product of melamine with urea and formaldehyde; (b) at least one organic hydroxy compound; (c) at least one assimilable phosphorus compound; and (d) at least one surface-active agent. 2. A composition according to claim 1, wherein said hydroxy compound (b) is a C 1-6 mono-alchol or ethyleneglycol monoalkyl derivative. 3. A composition according to claim 1, wherein said hydroxy compound (b) is ethylene glycol mono-ethyl ether or ethyleneglycol mono-butyl ether. 4. A composition according to claim 1, wherein said hydroxy compound (b) is added to freshly prepared melamine condensation product (a) in formulating the composition. 5. A composition according to claim 1, wherein said melamine condensation product (a) is etherified with a C 1-6 alcohol or ethyleneglycol monoalkyl derivative. 6. A composition according to claim 1, wherein said phosphorus compound (c) is a potassium salt of an oxyethylenated fatty alcohol phosphoric ester or a neutralized phosphated oxyethylenated alkylphenol. 7. A composition according to claim 1, wherein said surface-active agent (d) has a hydrophilic-lipophilic balance of 1 to 13. 8. A composition according to claim 7, wherein said surface-active agent (d) has a hydrophilic-lipophilic balance of 4 to 9. 9. A composition according to claim 1, which comprises at least two surface-active agents (d) having a combined hydrophilic-lipophilic balance of 1 to 13. 10. A composition according to claim 1, whose nitrogen content is from 4 to 8% by weight. 11. A composition according to claim 1, whose phosphorus content is from 0.1 to 0.4% by weight. 12. A composition according to claim 11, whose mono-alcohol content or ethylene glycol mono-alkyl derivative content is from 7 to 30% by weight. 13. An aqueous emulsion which comprises from 5 to 20% by weight of a composition according to claim 12 in fresh water or sea water. 14. A composition according to claim 1, wherein said hydroxy compound (b) is a mono-alcohol or an ethylene glycol mono-alkyl derivative. 15. A composition according to claim 14, wherein said ethylene glycol mono-alkyl derivative is an ethylene glycol mono-alkyl ether. 16. A composition according to claim 1, wherein said hydroxy compound (b) is a C 1-6 mono-alcohol or ethylene glycol mono-alkyl ether; said phosphorus compound (c) is a potassium salt of an oxyethylenated fatty alcohol phosphoric ester or a neutralized phosphated oxyethylenated alkylphenol; and said surface-active agent (d) has a hydrophilic-lipophilic balance of 1 to 13. 17. A composition according to claim 1, wherein said assimilable nitrogen compound (a) is a condensation product of melamine with formaldehyde. 18. A composition according to claim 17, wherein said melamine condensation product with formaldehyde is prepared by reacting an aqueous formaldehyde solution whose pH has been adjusted to 8-9, with melamine, the ratio of NH 2 groups to CHO groups being 0.5-3. 19. A composition according to claim 1, wherein said assimilable nitrogen compound (a) is a condensation product of melamine with urea and formaldehyde. 20. A composition according to claim 19, wherein said melamine condensation product with formaldehyde and urea is prepared by reacting an aqueous formaldehyde solution whose pH has been adjusted to 8-9, with melamine and urea, the ratio of NH 2 groups to CHO groups being 0.5-3. 21. A composition according to claim 20, wherein the molar ratio of melamine to urea is at least 1:3. 22. A composition according to claim 1, wherein said surface-active agent (d) is at least one of sorbitan monolaurate, ethylene glycol monostearate, sorbitan trioleate, glycerol monolaurate, sorbitan monooleate, anhydrosorbitol monooleate, ethoxylated C 12 -C 13 primary alcohols, polyethyleneglycol 400 dioleate, polyethyleneglycol 300 monooleate, polyethyleneglycol 400 monooleate. 23. A composition according to one of claims 2-9, or 1-25 having a nitrogen content of 4-8% by weight, a phosphorus content of 0.1-0.4% by weight; and a hydroxy compound content of 7-30% by weight.
이 특허에 인용된 특허 (2)
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Bartha Richard (East Brunswick NJ) Atlas Ronald M. (Louisville KY), Biodegradation of oil on water surfaces.
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Olivieri Roberto (Mentana ITX) Robertiello Andrea (Rome ITX) Degen Ludwig (Rome ITX), Method for depolluting fresh water and salt water bodies from crude oil, petroleum products and their derivatives.
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