JPH02110197A - Additive for use in alkaline detergent - Google Patents

Abstract

PURPOSE:To obtain the title additive capable of improving the electrical conductivity in electrolytic cleaning, the detergency, the endurance of a detergent solution, etc., and useful for a strongly alkaline detergent solution having a pH of 10 or higher by using a specified branched sulfonic acid or its salt as a constituent. CONSTITUTION:The title additive is obtained by using as its constituent a branched sulfonic acid of formula I [wherein R is either on 8-24C branched aliphatic hydrocarbon group containing a 1-14C branched chain or a 12-30C aromatic hydrocarbon group containing a branched hydrocarbon group; M is H, alkali (alkaline earth) metal, 1-4C aliphatic amino, ammonia or alkanolamine] or its salt [e.g., compounds of formulas II to VI (wherein R<1> is a hydrocarbon group; n is 1 to 5; R<2> is a 4-22C branched hydrocarbon group)].

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an additive for alkaline detergents that can dramatically improve various performances of the detergents by adding them to alkaline detergents. More specifically, by adding or containing it to an alkaline type cleaning agent, the cleaning effect can be improved.

Improved stamina! Improvement of current conduction characteristics during de-cleaning,
The present invention provides an additive for alkaline cleaning agents that can improve the condition of cleaning fluids and reduce the amount of foam in cleaning fluids.

(Prior art and its problems) Traditionally, alkaline detergents have been used to neutralize acids, saponify fats and oils, and have electrical conductivity, so they can be used to clean animal and vegetable oils,
It is advantageously used industrially as a strong cleaning agent for stains such as mineral oils, waxes, greases, tannins, and carmen. In addition, the industrial fields in which it is used include the field of cleaning of metals, metal-plastic parts, glass, etc., and it is widely used in these fields. In order to prevent adsorption of dirt components and deterioration of dirt, various builders such as surfactants and/or chelating agents are generally used in combination with the alkaline detergent.

In addition, the cleaning method includes immersion cleaning.

There are methods such as spray cleaning, plan cleaning, electrolytic cleaning, etc., or a combination of these methods, and the cleaning treatment is performed using these methods.

However, conventional alkaline cleaning agents still have various problems and are not fully satisfactory.

Particularly in recent years, as processing capacity has increased and energy-saving measures have progressed, performance requirements for cleaning agents have increased.
Improvements in the cleaning process are also needed. For this reason, the goals for improving cleaning agents are to improve their cleaning performance and the stamina of the cleaning fluid.

Low-temperature cleaning performance [Improvement of current conduction characteristics during decleaning] Reduction in the amount of cleaning solution carried out by the object to be cleaned and prevention of outflow of cleaning solution due to foaming, etc., resulting in lower unit consumption, simplification of handling of cleaning solution, etc. There is a strong demand for an alkaline cleaning agent that satisfies all performance requirements and has a high level of stable operation.

Special 9. Cleaning agents that contain straight chain fatty acids or their salts and/or straight chain fatty acid esters as a blended component or as a result of mixed dirt components are Problems have been raised, such as a decrease in stable operation due to deterioration, an increase in the amount of cleaning fluid taken out, and an increase in the amount of cleaning fluid flowing out due to foaming, etc., and the demand for the above cleaning agent is even greater. It is.

[Rounding method to solve the problem]

Therefore, the inventors of the present invention have conducted extensive studies to satisfy such demands, and as a result, the above-mentioned solution can be achieved by adding or containing a certain branched sulfonic acid or its salt to an alkaline cleaning agent. The present invention was completed by discovering that the required performance could be achieved.

That is, 1 the present invention is expressed by the following formula (1) % formula % (1) (wherein R represents a whole group hydrocarbon group having a branched chain having 1 to 14 carbon atoms, and 1M represents a hydrogen atom, an alkali metal, or an alkaline earth atom). The present invention provides an additive for alkaline detergents containing a metal, an aliphatic amine having 1 to 4 carbon atoms, ammonia, or a branched sulfonic acid represented by an alkanolamine (7f) or a salt thereof.

The branched sulfonic acid represented by formula (I) of the present invention includes 9-octadecene and 8-hexadecene.

Inner olefins such as 7-tetradecene, 6-dodecene, 12-tetraeicosene, 11-tocosene, and 0-eicosene (the above olefins are the main components because the olefin positions are distributed) are sulfonated. Guerbet-type sulfonated products or salts thereof 1 obtained by, for example, the following.

In addition, isotype α-olefins possessing several methyl branches obtained by increasing the amount of propylene, butylene, etc., such as isooctene, isononene, indodecene, inhexadecene, inoctadecene, isoeicosene,
The following formula obtained by total sulfonation such as intraeicosene (in the formula, Ro is a hydrocarbon group, 1M is a hydrogen atom, an alkali metal, an alkaline earth metal, an aliphatic amine having 1 to 4 carbon atoms, ammonia or alkanolamine, and n represents a number from 1 to 5).

Furthermore, 1-branched alkaline Φruene/1-branched alkaline Φluene,
Alternatively, branched alkylallylsulfonic acids or salts thereof 1 obtained by sulfonating branched argylnaphthalene etc. (R' represents a branched hydrocarbon group having 4 to 22 carbon atoms) etc.9 Typical examples include dovanax sulfonic acid or sodium salt (Shell Chemical Co., Ltd.).

In addition, the salts include ions of alkali metals, alkaline earth metals, aliphatic amines having 1 to 4 carbon atoms, ammonia, or alkanolamines having 2 to 10 carbon atoms, and specific examples include methylamine, ethylamine, etc. , f
lobilamine, butylamine, ethylenecyamine, zoethylenetriamine, ammonia, monoethanolamine, zoethanolamine, triethanolamine, C1~
Other alkanolamines of CIO, ions such as potassium, natnoum, carunium, and magnesium may be mentioned.

The additive for alkaline detergents of the present invention is used by adding it to known alkaline detergents according to a conventional method.

Examples of alkaline cleaning agents include the following components a) and/or
or (b).

(a) Alkaline agent (b) Surfactant (anionic surfactant, nonionic surfactant, cationic surfactant, and amphoteric surfactant).

(As an alkaline agent for the al component, a water-soluble alkali agent is used; specific examples include caustic soda, caustic potash;
Orthosilicate soda, metasilicate soda, - No. silicate nome,
Silicates such as No. 2 Sodium Silicate and No. 3 Sodium Silicate; Tori? Examples include sodium phosphates such as sodium lyphosphate, sodium orthophosphate, and sodium metaphosphate.

In addition, as the surfactant of component (b), (1) for example, sodium higher alcohol sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium dodenlebenzene sulfonate, sodium alkylnaphthalene sulfonate, sialkyl sulfosuccinate, etc. Sodium chloride,? Rio Φ diethylene alkyl ether sodium sulfate,? Anionic surfactants such as rioquine ethylene alkyl ether sulfate triethanolamine, broken oxyethylene alkylphenyl ethyl sulfate sodium salt, sodium salt of β-naphthalene sulfonic acid formalin condensate; ether,? Dioxyethylene aryl ether in alcohol,?
Nonionic surfactants such as lyoxyethylene alkylamino ether, nrubitan fatty acid ester, melioxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, glycerin fatty acid mono-sea ester; (3) For example, alkylamine acetate-1- , alkalamine hydrochloride, WJ quaternary ammonium salt, etc.; (4) For example, alkyldimethylamine oxide, alkylcal &-? Examples include amphoteric surfactants such as dimethylhydroxyetherimidazolium bemain.

Among these, the nonionic surfactant (2) has the following general formula (n) R+ -0-(CHtCHz O)n (CHt CH
2CH20)mH(If) (wherein, R1 is H1 a straight chain aliphatic hydrocarbon group having 1 to 18 carbon atoms, a branched chain aliphatic hydrocarbon group having 1 to 12 carbon atoms, or an alkyl group having 1 to 18 carbon atoms)
12 alkylphenyl groups, n is O to 60, m is 0 to 60, and n+m is the whole number one next higher) is preferred.

Specific examples of these include: Lioxyethylenehexyl ether? Lyoxyethylene octyl ether, broken oxyethylene decyl ether, broken oxyethylene lauryl ether.

? Lyoxyethylene myristyl ether, polyoxyethylene myristyl ether, ? Lioxyethylene stearyl ether? Lyoxyethylene oleyl ether? Lyoxyethylene tolyl ether? Lioxyethylene quinrenyl ether? Lyoxyethylene octylphenyl ether,? Lyoxyethylene nonylphenyl ether,? rioxyethylene defluphenyl ether,
? Lyoxyethylene dodenyl phenyl ether,? Lioxypropylene? Rioquin ethylene? Rioxypropylenko? Rimmer? Lioxyethylene-rioquinde σ♂
Len octylphenyl ether,? Rioquin ethylene jelly oxyderone nylphenyl ether,? Lioxyethylene? Lioxyzolopyrendenyl phenyl ether,? Lioxyethylene? Lioquin propylene dodenlephenyl ether, former lyoxyderobylene octylphenyl ether, ? Lioxyzolopylene nonylphenyl ether, 15 Lioxypropylenedenyl phenyl ether, ? Examples include lyoquin propylene dodecylphenyl ether and lyoxyzolobylene butyl ether.

The amount of the additive of the present invention added to the alkaline cleaning agent is 0.
hv at 01 to 30% by weight (hereinafter indicated as "%"), (a)
The preferred amount added in the alkaline cleaning agent containing the components (and fb) is 0.1 to 20%.

What is the blending amount of component (a) in the alkaline cleaning agent?

The content is 0.1 to 50%, preferably pH 10 or higher. The amount of component (b) added to the cleaning composition is 0.01 to 30%.

In addition, the alkaline cleaning agent used in the present invention includes:
It is also possible to blend an organic gyrate type builder for the purpose of improving the cleaning effect of the Eli layer. These include, for example, glycine, nitrilotriacetic acid, ethylenecyaminetetraacetic acid, diethylenetriaminepentaacetic acid, ethylenezoaminediacetic acid, iminodiacetic acid, triethylenetetraminehexaacetic acid, metaphenylenecyaminetetraacetic acid, hydroxyethylethylenecyamine. Aminocarboxylic acids such as alkali metal salts or lower amine salts such as triacetic acid and norleucune aminobutyric acid; Oxycarboxylic acids such as alkali metal salts or lower amine salts such as malic acid, citric acid, gluconic acid, glucoheptonic acid, and mucinic acid; Examples include acid type chelate builders.

〔Effect of the invention〕

As shown in the Examples below, by adding all of the additives of the present invention to three types of detergents each consisting of an alkaline agent, an alkaline agent and a surfactant, or an alkaline agent, a surfactant and a chelating agent, the requirements of these cleaning agents can be met. We obtained results that fully satisfied the performance. That is, when additives were added to each of the above three types of detergents, the detergency of the detergents after addition was improved compared to that before addition. In addition, similar results 2 were obtained regarding stamina. Regarding the current conduction characteristics during electrolytic cleaning, there was a clear difference between the presence and absence of the additive, and it was confirmed that the effect of the additive was significantly improved by 1V.

In addition, as another effect of the additive of the present invention, it was possible to suppress the phenomenon of thickening of the cleaning liquid due to the mixing of dirt components into the cleaning liquid. This improves the condition of the cleaning liquid, reduces the amount of cleaning liquid taken out of the object to be cleaned, and increases the amount of cleaning liquid by 1ff due to foaming.
The alkaline detergent additive of the present invention can satisfy various performance requirements such as prevention of lubricants, low temperature cleaning properties, and ease of handling of cleaning solutions.

〔Example〕

Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples. In the following examples, a cleaning composition was prepared by using a cleaning agent base containing the chemicals shown below in the composition shown in Table 1, and adding 0.5% of the additive of the present invention to this base.

(Drug) (1) Alkaline agent: Caustic soda (95% reagent-grade) Sodium orthosilicate (95% K$-grade') 12) Surfactant: Anionic surfactant: Naphthalenesulfonate formalin condensate Sodium salt nonionic surfactant: nonylphenol ethylene oxide Φ side 9 mole adduct cationic surfactant: stearylamine acetate (additive of the present invention) ■ Innonanesulfonic acid ■ Isododecane sulfonic acid ■ Guerbet type Octadecanesulfonic acid ■ Guerbet type tocosane sulfonic acid Example 1 Cleanability evaluation Stainless steel degreased with nitrichloroethylene solvent, 9
A test piece was prepared by uniformly applying lubricant 0629 ft to the surface of Iso and keeping it warm at 60°C for 2 hours. It was used for immersion cleaning under the following conditions. Thereafter, the test piece was washed under running water for 30 seconds and dried with warm air. The residual oil on the surface of the F-treated test piece was extracted into a trichlorethylene solvent, the weight of the extracted oil was measured, and the degreasing rate was determined and evaluated using the linear equation. The results are also shown in Table 2.

(Test conditions) Stainless steel: SUS 304 TPD lubricant: Mineral oil synthetic ester (commercial product) Cleaning agent concentration: Listed in Table 1 Cleaning liquid temperature = 60°C Cleaning time = 5 minutes Cleaning time: 5 minutes Stirring: 500 rpm The following margins are 2 In Table 3, the umbrella mark indicates redeposition due to oil mixed in the cleaning solution.

The following margins (the numbers in the table indicate the average degreasing rate when mouth = 5) Example 2 Stamina evaluation: Under the same conditions as Example 1, the number of nob treatments was 10.5
The cleaning properties of the 0th and 100th bottles were evaluated.

Example 3 Table 1: Electricity conductivity test during electrolytic cleaning: The decrease in conductivity and conductivity during electrolytic cleaning is thought to be due to corrosion of the electrode (anode). Therefore, the electrical conductivity was evaluated based on the amount of corrosion of the electrode, that is, the amount of weight loss of the electrode. The results are shown in Table 4.

(Evaluation conditions) Hiroki stainless steel plate (SUS-430”) Electrode area: 10 × 50 mm: 5 d Cleaning liquid concentration: Example-7; same as tl Cleaning liquid temperature: 80°C Additive concentration: Same as Example 11 Same current density: 100 A/dm2 Electrolysis time: 60 minutes or less Margin (The numbers in the table indicate the average reduction rate of n = 3) Example 4 1% of commercially available beef tallow was added to each cleaning solution, and then heated at 80 ° C. 2
The mixture was stirred for a period of time to allow sufficient reaction and was used as a test sample. A steel plate was vertically immersed in this sample liquid for 5 seconds, and then left vertically in the air for 20 seconds. The amount of cleaning liquid adhering to the steel plate subjected to the above treatment was measured, and the amount of cleaning liquid taken out was evaluated.

9. Put the same cleaning solution into a 200ml measuring cylinder with a stopper and shake it vigorously 20 times with one hand, and then measure the amount of foam after 1 minute. The results are shown in Table 5.

Margin below

Claims (1)

[Claims] 1. The following formula (I) RSO_3M (I) (wherein R is a branched aliphatic hydrocarbon group having a total of 8 to 24 carbon atoms or a branched chain having 1 to 14 carbon atoms) Represents an aromatic hydrocarbon group having a total of 12 to 30 carbon atoms and having a hydrocarbon group, M is a hydrogen atom, an alkali metal, an alkaline earth metal,
An additive for alkaline detergents containing a branched sulfonic acid or a salt thereof represented by (representing an aliphatic amine having 1 to 4 carbon atoms, ammonia or an alkanolamine). 2. The additive according to claim 1, which is used in a strong alkaline cleaning solution having a pH of 10 or more.