GB2259518A - Cleaning composition for use in seawater - Google Patents

Cleaning composition for use in seawater Download PDF

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Publication number
GB2259518A
GB2259518A GB9119028A GB9119028A GB2259518A GB 2259518 A GB2259518 A GB 2259518A GB 9119028 A GB9119028 A GB 9119028A GB 9119028 A GB9119028 A GB 9119028A GB 2259518 A GB2259518 A GB 2259518A
Authority
GB
United Kingdom
Prior art keywords
composition
seawater
micro
alcohol
emulsion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9119028A
Other versions
GB2259518B (en
GB9119028D0 (en
Inventor
Herman Mathieu Muijs
Cornelis Elbertus Kind
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB9119028A priority Critical patent/GB2259518B/en
Publication of GB9119028D0 publication Critical patent/GB9119028D0/en
Priority to NL9201537A priority patent/NL9201537A/en
Priority to NO923443A priority patent/NO300781B1/en
Publication of GB2259518A publication Critical patent/GB2259518A/en
Application granted granted Critical
Publication of GB2259518B publication Critical patent/GB2259518B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid compositions
    • C11D17/0021—Aqueous microemulsions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/143—Sulfonic acid esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Colloid Chemistry (AREA)

Abstract

The invention relates to a composition. suitable for use as micro-emulsion cleaner in seawater, comprising: a) a C12 to C18 alpha-olefin sulphonate, b) a C9 to C18 alcohol, ethoxylated with from 1 to 9 oxyethylene units per mol of alcohol, c) an aromatic hydrocarbon, and d) water, the weight ratio of b/a being in the range of from 1.5:1 to 8:1. <IMAGE>

Description

COMPOSITION The invention relates to a composition, suitable for use as micro-emulsion cleaner in seawater and to a micro-emulsion cleaner therefrom prepared. Micro-emulsions are optically clear systems which particle size lies below the wave-length of light (380 to 780 nm). They comprise at least 4 components: oily substance, water, emulgator and emulsifying aid (Ullmans Encyklopadie der technischen Chemie, 4th Edition, Volume 10, 1975, page 455).
Generally micro-emulsions are not stable in seawater and they lose their activity. Therefore, micro-emulsions are generally not acceptable for cleaning oil and gas platforms at sea. It has been found that where micro-emulsions were completely suitable to be used in tapwater they failed totally in seawater or synthetic seawater.
Applicant has now found a formulation which does not have this drawback.
The invention relates to a composition, suitable for use as micro-emulsion cleaner in seawater, comprising: a) a C12 to C18 alpha-olefin sulphonate, b) a Cg to C18 alcohol, ethoxylated with from 1 to 9 oxyethyiene units per mol of alcohol, c) an aromatic hydrocarbon, and d) water, the weight ratio of b/a being in the range of from 1.5:1 to 8:1.
The inventive composition is extraordinary stable in seawater, especially in the temperature range of from 0 OC to 30 "C.
Moreover the inventive composition, used as emulsion cleaner has the capability of cleaning surfaces which are polluted with o 1 as well as water-soluble compounds.
The composition preferably may contain aromatic hydrocarbons which have an auto-ignition temperature in the range of from 5C C to 550 'C and a flash point above 45 "C; examples are Shellsol A, Shellsol AB and Shellsol R, having an auto-ignition temperature of 505 "C, 508 "C and 486 "C respectively (Shellsol is a trade mark).
The high auto-ignition temperature makes the aromatic compounds even more suitable for being used on hot surfaces present on oil platforms.
The invention specifically relates to a composition, suitable for use as micro-emulsion cleaner in seawater, comprising: a) a C12 to C18 alpha-olefin sulphonate, b) a Cg to C18 alcohol, ethoxylated with from 1 to 9 oxyethylene units per mol of alcohol, c) an aromatic hydrocarbon having an auto-ignition temperature in the range of from 450 "C to 550 "C and a flash point above 45 "C, and d) water, the weight ratio of b/a being in the range of from 1.5:1 to 8:1.
As already indicated hereinbefore the weight ratio of the alpha-olefin sulphonate to the ethoxylated alcohol is important in that outside the indicated range no stable micro-emulsions can be prepared from the compositions.
Instead of in seawater the micro-emulsion also works in synthetic seawater, containing from about 3 to 10 per cent by weight of sodium chloride.
The micro-emulsion cleaner is formed by mixing the inventive composition with the seawater in a weight ratio of 1:1 to 1:25.
A preferred composition according to the invention, comprises.
5.0-9.4 per cent by weight of compound a), 14.1-20 per cent by weight of compound b), 18 -22 per cent by weight of water, and the balance being the aromatic compound.
Preferred alpha-olefin sulphonates comprise the sodium, potassium or ammonium sulphonates. The alpha-olefin sulphonates preferably have mainly C14 and C16 alkyl groups.
The component b) is a C9 to C18 alcohol, preferably a Cg to C11 alcohol, which is ethoxylated. Acyclic aliphatic mono-dric alcohols (alkanols) are a preferred class, particularly primary alkanols. The alkanols may be of branched or straight chain structure, although preference exists for alkanols with more than 50 per cent of the molecules of linear structure. Ethoxylation is preferably carried out so that an average of from 2 to 6 oxyethylene units per mol of alcohol is present.
The compositions according to the invention may additionally comprise a small amount of a salt, e.g. sodium chloride.
Examples 1-3 Compositions were prepared with the following weight amounts of DOBANOL (DOBANOL is a trade mark), sulphonate, water and Shellsol AB. In one formulation NaCl was added.
I II III DOBANOL 91-2.5 8.4 8.2 9.4 DOBANOL 91-6 8.4 8.2 9.4 C14-Cl6 alpha-olefin sulphonate (Na salt) 7.2 7.1 6.2 water 20.0 19.6 20.0 Shellsol AB fro.0 54.9 55.0 NaCl - 2.0 DOBANOL 91-2.5 is a mixture of C9 11 alcohols, which has been ethoxylated with an average of 2.5 mols ethylene oxide on one mol alcohol.
DOBANOL 91-ó is a mixture of Cog 11 alcohols, which has been ethoxylated with an average of 6 mols ethylene oxide on one mol alcohol.
Blends I and III were emulsions, which in synthetic seawater gave micro-emulsions.
Blend II was a micro-emulsion, which in synthetic seawater gave a micro-emulsion.
C14-C16 alpha-olefin sulphonate (Na salt) is calculated as 100 per cent active material.
Example 4 A composition was prepared with the following weight amounts of DOBANOL, sulphonate, water and Shellsol AB: DOBANOL 91-2.5 10.5 g DOBANOL 91-6 10.5 g C14-Cl6 alpha-olefin sulphonate (Na salt) 9 g water 16.9 g Shellsol AB 70.0 g The emulsion stability of the composition was tested in Synthetic Sea Water (SSW) at various concentrations: Concentration in SSW Emulsion stability * volume after 1, 4, 2 hours 5 micro-emulsion 10 micro-emulsion 20 micro-emulsion 30 micro-emulsion 40 micro-emulsion 50 micro-emulsion calculated as 100 per cent active material.
Example 5 The same composition as in example 4 was used in emulsion stability tests, as a 50% volume blend in water of varying salinities.
The salinity scan was from 0 to 1008 synthetic sea water.
Salinity in Emulsion stability after % SSW 1 4 24 hours O 10 - - 20 30 - - 40 - - 50 - - 60 - - 70 - - 80 - - 90 m.e. m.e. m.e.
100 m.e. me. me.
- means phase separation, water phase separates out.
m.e. is micro-emulsion.
Example 6 The same compositions with active ingredients and Shellsol AB were prepared as in example 4 only the amount of water was varied.
(The blend was not tested in sea water.) Water content, %w Stability of composition after in composition 1 24 240 hours 1 < 5 2 10.3 - 3 13.1 + 4 15.9 + - 5 18.7 + + + 6 20.0 + + + 7 25.0 + 8 30.0 0 - means phase separation, solvent phase separates out.
+ emulsion 0 very viscous gel-like emulsion.
Example A (comparative) A composition was prepared comprising 18.7 g of DOBANOL (being a mixture of DOBANOL 91-2.5 and DOBANOL 91-6 in a weight ratio of 50:50); 5.6 g of a C14-C16 alpha-olefin sulphonate (Na salt) (active matter 37.2 per cent by weight) and 62.5 g of Shellsol AB.
A 50% volume blend in synthetic seawater was made and tested for micro-emulsion stability. It appeared that the emulsion showed gel formation and liquid crystals.

Claims (8)

1. Composition, suitable for use as micro-emulsion cleaner in seawater, comprising: a) a C12 to C18 alpha-olefin sulphonate, b) a Cg to C18 alcohol, ethoxylated with from 1 to 9 oxyethylene units per mol of alcohol, c) an aromatic hydrocarbon, and d) water, the weight ratio of b/a being in the range of from 1.5:1 to 8:1.
2. Composition as claimed in claim 1, comprising:
5.0-9.4 per cent by weight of compound a), 14.1-20 per cent by weight of compound b), 18 -22 per cent by weight of water, and the balance being the aromatic hydrocarbon, on the total composition being 100 per cent by weight.
3. Composition as claimed in claim 1 or 2, wherein the aromatic hydrocarbon has an auto-ignition temperature in the range of from 450 C to 550 'C and a flash point above 45 "C.
4. Composition as claimed in one or more of the claims 1-3, wherein a) is a C14 to C16 alpha-olefin sulphonate.
5. Composition as claimed in one or more of the claims 1-4, wherein under b) the alcohol is a mixture of Cg to C11 alcohols.
6. Composition as claimed in claim 5, wherein the alcohols have an average of from 2 to 6 oxyethylene units per molecule.
7. Composition as claimed in claim 1, as hereinbefore described with special reference to the Examples 1 to 6.
8. Micro-emulsion cleaner comprising a composition as claimed in any one of the claims 1-7, admixed with seawater or a synthetic seawater, the weight ratio of composition to seawater lies in the range of from 1:1 to 1:25.
GB9119028A 1991-09-05 1991-09-05 Micro-emulsion cleaner composition suitable for use in seawater Expired - Fee Related GB2259518B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9119028A GB2259518B (en) 1991-09-05 1991-09-05 Micro-emulsion cleaner composition suitable for use in seawater
NL9201537A NL9201537A (en) 1991-09-05 1992-09-03 COMPOSITION.
NO923443A NO300781B1 (en) 1991-09-05 1992-09-03 Use of a preparation as an emulsion cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9119028A GB2259518B (en) 1991-09-05 1991-09-05 Micro-emulsion cleaner composition suitable for use in seawater

Publications (3)

Publication Number Publication Date
GB9119028D0 GB9119028D0 (en) 1991-10-23
GB2259518A true GB2259518A (en) 1993-03-17
GB2259518B GB2259518B (en) 1996-02-14

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Family Applications (1)

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GB9119028A Expired - Fee Related GB2259518B (en) 1991-09-05 1991-09-05 Micro-emulsion cleaner composition suitable for use in seawater

Country Status (3)

Country Link
GB (1) GB2259518B (en)
NL (1) NL9201537A (en)
NO (1) NO300781B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027034A1 (en) * 1994-03-31 1995-10-12 Unilever Plc Detergent compositions
WO2010008996A1 (en) * 2008-07-14 2010-01-21 The Procter & Gamble Company Microemulsion or protomicroemulsion cleaning composition with disrupting surfactants
WO2014083062A2 (en) * 2012-11-30 2014-06-05 Oti Greentech Group Ag Cleaning method and composition
US8871704B2 (en) 2012-11-30 2014-10-28 Oti Greentech Group Ag Cleaning composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1220635A (en) * 1967-09-01 1971-01-27 Montedison Spa Elimination of water pollution
GB2141731A (en) * 1983-06-20 1985-01-03 Loyd Wardwell Jones Oil recovery surfactant composition
US4534411A (en) * 1982-03-16 1985-08-13 Lion Corporation Micellar slug for oil recovery
US4764285A (en) * 1986-03-15 1988-08-16 Exxon Research And Engineering Company Oil spill microemulsion dispersants

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686099A (en) * 1968-02-26 1972-08-22 Nina Andreevna Gerchenova Detergent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1220635A (en) * 1967-09-01 1971-01-27 Montedison Spa Elimination of water pollution
US4534411A (en) * 1982-03-16 1985-08-13 Lion Corporation Micellar slug for oil recovery
GB2141731A (en) * 1983-06-20 1985-01-03 Loyd Wardwell Jones Oil recovery surfactant composition
US4764285A (en) * 1986-03-15 1988-08-16 Exxon Research And Engineering Company Oil spill microemulsion dispersants

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027034A1 (en) * 1994-03-31 1995-10-12 Unilever Plc Detergent compositions
WO2010008996A1 (en) * 2008-07-14 2010-01-21 The Procter & Gamble Company Microemulsion or protomicroemulsion cleaning composition with disrupting surfactants
WO2014083062A2 (en) * 2012-11-30 2014-06-05 Oti Greentech Group Ag Cleaning method and composition
WO2014083062A3 (en) * 2012-11-30 2014-07-24 Oti Greentech Group Ag Cleaning method and composition
US8871704B2 (en) 2012-11-30 2014-10-28 Oti Greentech Group Ag Cleaning composition
US8999910B2 (en) 2012-11-30 2015-04-07 Oti Greentech Group Ag Cleaning composition
CN104870624A (en) * 2012-11-30 2015-08-26 奥蒂绿色科技有限公司 Cleaning method and composition
EA031115B1 (en) * 2012-11-30 2018-11-30 Оти Гриинтех Груп Аг Industrial composition and use thereof for cleaning a hard surface

Also Published As

Publication number Publication date
GB2259518B (en) 1996-02-14
NL9201537A (en) 1993-04-01
NO923443D0 (en) 1992-09-03
GB9119028D0 (en) 1991-10-23
NO300781B1 (en) 1997-07-21
NO923443L (en) 1993-03-08

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980905