CN111450772A - Non-layering liquid sodium alkyl benzene sulfonate and preparation method thereof - Google Patents
Non-layering liquid sodium alkyl benzene sulfonate and preparation method thereof Download PDFInfo
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Abstract
The invention provides a non-layering liquid sodium alkyl benzene sulfonate, which is characterized in that: the sodium alkyl benzene sulfonate is synthesized by the following raw materials of compounds, wherein the raw materials comprise the following components in percentage by mass: 36-38% of dodecylbenzene sulfonic acid, 13-15% of sodium hydroxide solution, 24-26% of deionized water, 22-24% of sodium xylene sulfonate and 1-3% of glycerol, wherein the sum of the mass percentages of the components is 100%. The invention can obviously improve the layering problem of the product by adding sodium xylene sulfonate and glycerin into the semi-finished product sodium dodecyl benzene sulfonate for emulsification.
Description
Technical Field
The invention relates to the field of sodium alkyl benzene sulfonate, in particular to non-layered liquid sodium alkyl benzene sulfonate and a preparation method thereof.
Background
The liquid sodium alkyl benzene sulfonate is milk white flowing slurry or paste, has the functions of foaming, emulsifying, dispersing, decontaminating, reducing surface tension and the like in water, is an anionic surfactant with relatively comprehensive performance, and is widely used in washing chemical industry, textile industry, leather industry, paper industry and petrochemical industry. Sodium alkyl benzene sulfonate can be dissolved in water, is not dissolved in chloroform, and has a separation phenomenon in a high-concentration aqueous solution.
In the oil product regeneration, the product can generate a layering phenomenon due to overlong time, so that the use of the product and the development of downstream products are influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides non-layered liquid sodium alkyl benzene sulfonate and a preparation method thereof, and solves the problem of layering of sodium alkyl benzene sulfonate.
In order to solve the technical problems, the invention adopts the technical scheme that: the non-layering liquid sodium alkyl benzene sulfonate is synthesized by the following raw materials of compounds, wherein the raw materials comprise the following components in percentage by mass: 36-38% of dodecylbenzene sulfonic acid, 13-15% of sodium hydroxide solution, 24-26% of deionized water, 22-24% of sodium xylene sulfonate and 1-3% of glycerol, wherein the sum of the mass percentages of the components is 100%.
Further, the emulsifier is synthesized by the following raw materials of compounds, wherein the raw materials comprise the following components in percentage by mass: 37.02% of dodecylbenzene sulfonic acid, 13.26% of sodium hydroxide solution, 24.31% of deionized water, 23.2% of sodium xylene sulfonate and 2.21% of glycerol.
Further, the concentration of the sodium hydroxide solution is 30-32%.
Further, the dodecylbenzene sulfonic acid has a neutralization number of 128.
The preparation method of the non-layering liquid sodium alkyl benzene sulfonate is characterized by comprising the following steps:
s1: metering dodecyl benzene sulfonic acid, sodium hydroxide solution, deionized water, sodium xylene sulfonate and glycerol according to the proportion of the ingredients;
s2: adding deionized water into a reaction kettle with the volume of 1t, adding a sodium hydroxide solution into the reaction kettle, and stirring for 1-3 min to fully mix the sodium hydroxide and the deionized water;
s3: slowly adding dodecylbenzene sulfonic acid into a reaction kettle, and controlling the adding time to be 8-10 min and the reaction time to be 25-30 min; after the reaction is finished, feeding the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline;
s4: adding sodium dodecyl benzene sulfonate and glycerol into an emulsifying kettle, starting an emulsifying pump for emulsifying, controlling the reaction temperature to be 50-60 ℃, and emulsifying for 9-10 min to obtain the finished product sodium alkyl benzene sulfonate.
Further, after the full reaction in the S3, the pH value of the semi-finished product is 6-9.
Further, in the emulsification process in the S4, the pH value of a finished product is 7-8 under the environment condition of 25 ℃.
Furthermore, the sodium alkyl benzene sulfonate special for the nitrile rubber comprises 39-41% of active matters and 2.5% of free oil in a quantitative ratio; the content of inorganic salt in the non-layered liquid sodium alkyl benzene sulfonate is not more than 1.2 percent, and the chroma is not more than 40 percent.
Compared with the prior art, the invention has the beneficial effects that: the problem of product layering can be remarkably improved by adding sodium xylene sulfonate and glycerin into the semi-finished product sodium dodecyl benzene sulfonate for emulsification.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description is merely illustrative of the technical solutions of the present invention, and should not be construed as being all of the present invention or limiting or restricting the technical solutions of the present invention.
Example 1
Firstly weighing 360kg of dodecylbenzene sulfonic acid, 130kg of sodium hydroxide solution, 240kg of deionized water, 220kg of sodium xylene sulfonate and 10kg of glycerol according to the proportion of ingredients. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 2min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 9 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 6.3 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after the emulsification time is 9min, and controlling the pH value to be 7.2 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished product of the sodium dodecyl benzene sulfonate is 40.6 percent, the content of inorganic salt in the finished product is 0.8 percent, the content of the sodium dodecyl benzene sulfonate is 38.7 percent, the chroma is 20, and the finished product is a yellowish transparent flowing liquid.
Example 2
Firstly weighing 360kg of dodecylbenzene sulfonic acid, 140kg of sodium hydroxide solution, 260kg of deionized water, 230kg of sodium xylene sulfonate and 30kg of glycerol according to the proportion of ingredients. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 2min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 9 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 6 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after the emulsification time is 9min, and controlling the pH value to be 7 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. The active substance content of the finished product of the sodium dodecyl benzene sulfonate emulsified by the emulsification pump is 41 percent, the content of inorganic salt in the finished product is 0.7 percent, the content of the sodium dodecyl benzene sulfonate is 38.2 percent, the chroma is 29 percent, and the finished product is a yellowish transparent flowing liquid.
Example 3
Firstly weighing 360kg of dodecylbenzene sulfonic acid, 150kg of sodium hydroxide solution, 250kg of deionized water, 240kg of sodium xylene sulfonate and 20kg of glycerin according to the proportion of ingredients. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 1min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 8 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 6.5 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 50 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.5 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished product of the sodium dodecyl benzene sulfonate is 40.9 percent, the content of inorganic salt in the finished product is 1.1 percent, the content of the sodium dodecyl benzene sulfonate is 38 percent, the chroma is 34 percent, and the finished product is a yellowish transparent flowing liquid.
Example 4
Firstly, 335kg of dodecylbenzene sulfonic acid, 120kg of sodium hydroxide solution, 220kg of deionized water, 210kg of sodium xylene sulfonate and 20kg of glycerol are weighed according to the proportion of ingredients. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 2min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 9 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 6.9 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.6 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished sodium dodecyl benzene sulfonate product is 39.5%, the content of inorganic salt in the finished sodium dodecyl benzene sulfonate product is 0.7%, the content of sodium dodecyl benzene sulfonate is 39.1%, the chroma is 16, and the finished sodium dodecyl benzene sulfonate product is a yellowish transparent flowing liquid.
Example 5
370kg of dodecyl benzene sulfonic acid, 150kg of sodium hydroxide solution, 240kg of deionized water, 240kg of sodium xylene sulfonate and 30kg of glycerol are weighed according to the proportion. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 3min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 10 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 6.8 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.8 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished product of the sodium dodecyl benzene sulfonate is 40.3 percent, the content of inorganic salt in the finished product is 1.2 percent, the content of the sodium dodecyl benzene sulfonate is 39.5 percent, the chroma is 36, and the finished product is a yellowish transparent flowing liquid.
Example 6
370kg of dodecylbenzene sulfonic acid, 150kg of sodium hydroxide solution, 260kg of deionized water, 220kg of sodium xylene sulfonate and 10kg of glycerol are weighed according to the proportion. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 3min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 10 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 7.4 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.7 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished sodium dodecyl benzene sulfonate product is 39.5%, the content of inorganic salt in the finished sodium dodecyl benzene sulfonate product is 0.9%, the content of sodium dodecyl benzene sulfonate is 42%, the chroma is 29, and the finished sodium dodecyl benzene sulfonate product is a yellowish transparent flowing liquid.
Example 7
Firstly weighing 380kg of dodecylbenzene sulfonic acid, 150kg of sodium hydroxide solution, 260kg of deionized water, 240kg of sodium xylene sulfonate and 30kg of glycerol according to the proportion. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 3min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 10 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 7.2 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 78 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished sodium dodecyl benzene sulfonate product is 39%, the content of inorganic salt in the finished sodium dodecyl benzene sulfonate product is 0.7%, the content of sodium dodecyl benzene sulfonate is 40.6%, the chroma is 35, and the finished sodium dodecyl benzene sulfonate product is a yellowish transparent flowing liquid.
Example 8
Firstly weighing 380kg of dodecylbenzene sulfonic acid, 140kg of sodium hydroxide solution, 240kg of deionized water, 230kg of sodium xylene sulfonate and 10kg of glycerol according to the proportion. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 3min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 10 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 9 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.9 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished sodium dodecyl benzene sulfonate product is 39.7%, the content of inorganic salt in the finished sodium dodecyl benzene sulfonate product is 0.8%, the content of sodium dodecyl benzene sulfonate is 41.4%, the chromaticity is 19, and the finished sodium dodecyl benzene sulfonate product is a yellowish transparent flowing liquid.
Example 9
Firstly weighing 380kg of dodecylbenzene sulfonic acid, 130kg of sodium hydroxide solution, 250kg of deionized water, 220kg of sodium xylene sulfonate and 20kg of glycerol according to the proportion. Adding deionized water into a 1t reaction kettle, slowly pouring sodium hydroxide solution along the reaction kettle, and stirring for 3min to fully mix the sodium hydroxide solution and the deionized water. Slowly adding the dodecylbenzene sulfonic acid into the reaction kettle, and controlling the adding time of the dodecylbenzene sulfonic acid to be 10 min. After the full reaction, the pH value of the semi-finished sodium alkyl benzene sulfonate in the reaction kettle is measured to be 7.6 by using pH test paper. After the reaction is finished, sending the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline, adding sodium xylene sulfonate and glycerol into the emulsifying kettle, starting an emulsifying pump connected with the reaction kettle for emulsification, controlling the reaction temperature to be 55 ℃, obtaining the finished sodium alkyl benzene sulfonate after emulsification for 10min, and controlling the pH value to be 7.4 under the environment condition of 25 ℃. In the emulsification process, a PHS-3C type precision pH meter is adopted to monitor the pH value of the sodium dodecyl benzene sulfonate. After emulsification by an emulsification pump, the active substance content of the finished sodium dodecyl benzene sulfonate product is 39.2%, the content of inorganic salt in the finished sodium dodecyl benzene sulfonate product is 1%, the content of sodium dodecyl benzene sulfonate is 41.6%, the chromaticity is 22, and the finished sodium dodecyl benzene sulfonate product is a yellowish transparent flowing liquid.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (8)
1. A non-layering liquid sodium alkyl benzene sulfonate is characterized in that: the sodium alkyl benzene sulfonate is synthesized by the following raw materials of compounds, wherein the raw materials comprise the following components in percentage by mass: 36-38% of dodecylbenzene sulfonic acid, 13-15% of sodium hydroxide solution, 24-26% of deionized water, 22-24% of sodium xylene sulfonate and 1-3% of glycerol, wherein the sum of the mass percentages of the components is 100%.
2. The sodium non-stratified liquid alkylbenzene sulfonate as claimed in claim 1, wherein the sodium non-stratified liquid alkylbenzene sulfonate is synthesized from the following raw materials in mass fraction: 37.02% of dodecylbenzene sulfonic acid, 13.26% of sodium hydroxide solution, 24.31% of deionized water, 23.2% of sodium xylene sulfonate and 2.21% of glycerol.
3. The non-layered liquid sodium alkyl benzene sulfonate according to claim 1, wherein the concentration of the sodium hydroxide solution is 30% to 32%.
4. The non-layered liquid sodium alkylbenzene sulfonate according to claim 1, wherein the dodecylbenzene sulfonic acid has a neutralization number of 128.
5. The process for the preparation of sodium alkyl benzene sulphonate from a non-demixing liquid according to any of claims 1 to 4 comprising the steps of:
s1: metering dodecyl benzene sulfonic acid, sodium hydroxide solution, deionized water, sodium xylene sulfonate and glycerol according to the proportion of the ingredients;
s2: adding deionized water into a reaction kettle with the volume of 1t, adding a sodium hydroxide solution into the reaction kettle, and stirring for 1-3 min to fully mix the sodium hydroxide and the deionized water;
s3: slowly adding dodecylbenzene sulfonic acid into a reaction kettle, and controlling the adding time to be 8-10 min and the reaction time to be 25-30 min; after the reaction is finished, feeding the semi-finished sodium alkyl benzene sulfonate into an emulsifying kettle through a pipeline;
s4: adding sodium dodecyl benzene sulfonate and glycerol into an emulsifying kettle, starting an emulsifying pump for emulsifying, controlling the reaction temperature to be 50-60 ℃, and emulsifying for 9-10 min to obtain the finished product sodium alkyl benzene sulfonate.
6. The method for preparing non-layered liquid sodium alkyl benzene sulfonate according to claim 5, wherein after the full reaction in S3, the pH value of the semi-finished product is 6-9.
7. The method for preparing non-layering liquid sodium alkyl benzene sulfonate according to claim 5, wherein in the emulsification process in S4, the pH value of the finished product is 7-8 at 25 ℃.
8. The non-layered liquid sodium alkyl benzene sulfonate according to any one of claims 1 to 7, wherein the sodium alkyl benzene sulfonate specially used for nitrile rubber comprises 39 to 41% of active substances and 2.5% of free oil by number ratio; the content of inorganic salt in the non-layered liquid sodium alkyl benzene sulfonate is not more than 1.2 percent, and the chroma is not more than 40 percent.
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Application publication date: 20200728 |