KR0121327B1 - Method of manufacturing the surface active agent - Google Patents

Abstract

Method for mfg. of composite surfactant having a good detergency are described. Thus, (1) the mixture of 20-40 pts. of ethyleneoxide with an addition mol. of 8-12, 10-20 pts. of ethyleneoxide with an addition mol. of 5-7, 4-10 pts.of ethyleneoxide with an addition mol. 3-5, 10-15 pts. of alkylbenzensulfonic acid is heated at 40-90 deg.C to give a half product(a). (2)ferric chloride and ferric sulfate are melted in 100 pts. water and added with sodium hydroxide and hydrochloric acid to give ferric hydroxide soln. which is added with ethanolamine and alkanol to give a half product(b). Reaction soln.(a) and reaction soln. (b) are reacted at 20-40 deg. C to give a final product.

Description

Compound surfactant preparation method

The present invention relates to a highly concentrated commercial composite surfactant preparation method. In recent years, it is well known that nonionic surfactants are widely used in various fields of industry.

However, since the nonionic surfactant generally has a low cloud point, solubility decreases as the washing temperature rises above the cloud point. Therefore, there is a lot of problems in use because of the reduced solubility, penetration, emulsification power due to reduced solubility when used in high temperature parts for industrial use.

For example, the difference in cloud point is very large depending on the number of moles of ethylene oxide added to polyoxy ethylenenonylphenolether, which is a nonionic surfactant. That is, 8 moles having 8 moles of ethylene oxide added have a cloud point of 32 ° C, 9 moles of clouding point of 52 ° C, 10 moles of clouding point of 67 ° C, 11 moles of 74 ° C, 12 moles of 82 ° C and 13 moles of 89 ° C. Generally, less than 13 mol has a cloud point of 100 degrees C or less. If the cloud point is at least 15 moles, the cloud point is 100 ° C. or more, and thus, at a temperature above the cloud point, it is difficult to maintain the proper temperature of the washing bath due to the decrease in the solubility of the surfactant, the penetration force, and the emulsification power. In addition, since the number of moles of ethylene oxide added, that is, 15 moles or more, has a high cloud point and good solubility, the cleaning, penetrating and emulsifying power are far lower than those of ethylene oxide added. There is a situation. In addition, the washing is theoretically attached to the dirt, soil and other contaminants adhered to by oil, fat, etc. in the wash, and the purpose is to remove chemically and physically using a detergent (surfactant). In order to further increase this purpose, the molecular motion of the cleaning agent is increased to mechanically raise the temperature of the stirring or the washing bath so that the active molecules of the cleaning agent come into violent contact with the contaminants of the cleaning agent. However, a nonionic surfactant having a low cloud point is required to have a high cloud point nonionic surfactant as a low molar added surfactant at a temperature higher than the cloud point as described above.

Specifically, for example, when the number of moles of ethylene oxide added to polyoxyethlenoctyl phenolether is 8 mol, the surface tension (0.1%) is 30.2 dynes / cm, the penetration is 2.2 seconds, and the cloud point is 47 ° C. . In case of 10 moles, surface tension is 31.8 dyne / cm, penetration is 3.3 seconds, and cloud point is 65 ° C. However, 16 moles of surface tension drops to 35.6 dyne / cm, penetration of 27.3 seconds and cloud point increases above 100 ℃. In addition, the emulsifying power also decreases as the number of moles of ethylene oxide added decreases. As such, when the number of moles of ethylene oxide added is 13 mol or less, the washing power, the penetration power, the emulsifying power, etc. are excellent while the cloud point is low. Therefore, while maintaining all the components of the non-ionic surfactant with a small number of ethylene oxide added moieties as it is, only the cloud point is prepared to be 100 ℃ or more and active water movement of the cleaning agent by hot water or heat washing to 40 ~ 100 ℃ It is a big problem to prepare a non-ionic surfactant that can increase the washing effect.

The present invention relates to the preparation of a high cloud point composite surfactant having a low cloud point nonionic surfactant as a main component that compensates for the defects of the nonionic surfactant as described above.

Applicant is characterized in that the addition of polyoxyethylene lauryl ether, sodium olefin sulfonate and the like in Patent No. 15352, the present invention is a di-, trivalent iron hydroxide, alkylbenzene sulfonic acid, ethanolamine Invented after the experiment for many years as a composition that can be produced at a lower production cost with better performance than Patent No. 15352. After washing, the purification and flowability of the wastewater showed an excellent effect. It is expected to be of great benefit in mechanical wastewater treatment when used in factories.

That is, 20 to 40 parts, 5 to 7 moles of 10 to 20 parts of 8 to 12 moles of ethylene oxide added to polyoxyethylene nonylphenol ether or polyoxyethylene octylphenol ether, 4 to 10 parts of 3 to 5 moles added and 10 to 15 parts of alkylbenzenesulfonic acid were mixed and heated to 40 to 90 ° C., stirred at 1,000 to 1,800 RPM, and aged (A). 10 to 20 parts of FeCl ₃ ) and 10 to 20 parts of ferrous sulfate (FeSO ₄ ) were dissolved in 100 parts of distilled water, and then 10 to 20 parts of caustic soda (NaOH) was added to make it strongly alkaline, followed by stirring with 1,000 to 1,800 RPM stirrer. After aging for 180 minutes or more, hydrochloric acid (HCl) is added to adjust the pH to 6.0-6.5, followed by stirring for 30 minutes with a 1,000-1,800 RPM stirrer. This precipitate is separated and the supernatant dihydric iron hydroxide (Fe (OH) ₂ .Fe (OH) ₃ .nH ₂ O) solution is recovered. 10 to 15 parts of ethanolamine and 10 to 20 parts of saturated monohydric alkanol (methyl alcohol, ethanol or propyl alcohol) were added thereto, followed by stirring for 60 minutes with a 1,000 to 1,800 RPM stirrer (B). The reactants (A) and (B) are mixed and stirred at 1,000 to 1,800 RPM stirrer for 60 minutes while maintaining at 20 to 40 ° C., then aged for 24 hours to obtain a product. The composite surfactant produced in this way was produced with a surfactant having a low cloud point of 100 ° C. or higher while maintaining important components as it originally had, and was excellent even when diluted to 10 ³ times, and the drain was not clogged with water. The removal rate was excellent.

EXAMPLE

10 moles of ethylene oxide added to the polyoxyethylene nonylphenol ether in the flask (A) 10 cc of added molar number 37CC, 6 moles added 18CC, 5 moles added 6CC, alkylbenzenesulfonic acid 15CC 1,800 while maintaining the mixture at 45 ℃ Aged after stirring for 60 minutes with RPM stirrer.

After mixing and dissolving 100CC of distilled water, 20 g of ferric chloride, and 20 g of ferrous sulfate, the flask (B) was stirred for 60 minutes with a 1,800 RPM stirrer. After stirring, distilled water 50CC is added. After stirring for a while, it is left for 180 minutes. The mixture was adjusted to pH 6 with hydrochloric acid, stirred at 1,800 RPM for 60 minutes, and left for 24 hours. A colorless transparent supernatant di- or trivalent iron hydroxide 70CC is taken in a flask (C). To this, triethanolamine 15CC and ethyl alcohol 15CC were added and stirred at 1,800 RPM for 60 minutes while maintaining at 30 ° C. The reaction product was added to the reactant (A), stirred at 1,800 RPM for 40 minutes, and aged for 24 hours. Was produced.

Cleaning power test

30 g of wood screen was taken in a 2,000CC container, and the composite surfactant produced in Example was added to a 0.5% dilution gas container in distilled water, heated to 100 ° C. for 60 minutes, and the wood screen was rinsed with water and dried.

Skim

1) After taking 500CC of distilled water in a 1,000CC beaker, 0.1 g of non-moistened cotton was added to the prepared beaker distilled water. It did not sink.

2) 0.1 g of the dried cotton degreased in the washing power test was weighed into distilled water as above. It sank in 10 seconds. It was found that degreasing was good.

3) medicinal cotton wool was purchased at the pharmacy, 0.1g was taken, and put in distilled water as above. It sank in 10 seconds. Degreasing is good.

For reference, the neck contains 1% wax. If this wax is not completely degreased, it cannot be used for medicine. In the cotton wool factory, the current method is to fill the wood screen with a 1% solution of caustic soda in a large kiln and heat it at 125 ° C. for 6-9 hours.

Drip test

The dripping test was carried out with a filter paper and a sieve network (150 MESH) as follows. The sample was produced in the above example, and used the same amount of the invention patent No. 15352. Samples were shaken 20 times in dilution beakers with 5% solution each, followed by foaming.

It can be seen from Table 1 that the water draining rate was much faster due to the inclusion of bivalent trihydride, which is very suitable for industrial use, especially for paper mill felt.

Claims (1)

8 to 12 moles of ethylene oxide added to polyoxyethylene nonyl phenol ether or polyoxyethylene octyl phenol ether 20 to 40 parts, 5 to 7 moles of 10 to 20 parts, 3 to 5 moles 10 to 15 parts of alkylbenzenesulfonic acid was added to 4 to 10 parts of the addition, which was stirred at 1,000 to 1,800 RPM. Separately, 10 to 20 parts of ferric chloride and 10 to 20 parts of ferrous sulfate were dissolved in distilled water to form virtual soda. After stirring at 1,000 ~ 1,800RPM with strong alkali, adjust pH to 6 ~ 6.5 with hydrochloric acid, take the supernatant of the second and trivalent iron hydroxide, and add 10-15 parts of ethanolamine and 10-20 parts of saturated monohydric alkanol. Method for producing a composite surfactant, characterized in that by stirring at 1,000 ~ 1,800RPM and then aged to 1,000 ~ 1,800RPM after aging.