WO2014106312A1 - Method for producing high-purity sodium dodecyl sulfate - Google Patents
Method for producing high-purity sodium dodecyl sulfate Download PDFInfo
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- WO2014106312A1 WO2014106312A1 PCT/CN2013/001337 CN2013001337W WO2014106312A1 WO 2014106312 A1 WO2014106312 A1 WO 2014106312A1 CN 2013001337 W CN2013001337 W CN 2013001337W WO 2014106312 A1 WO2014106312 A1 WO 2014106312A1
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- sodium dodecyl
- dodecyl sulfate
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/24—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfuric acids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
Definitions
- the invention belongs to the field of sodium dodecyl sulfate, and particularly relates to a method for producing high-purity sodium dodecyl sulfate.
- the currently industrialized sodium dodecyl sulfate is a raw material for daily necessities. Due to the conventional process, mixed fatty alcohol (mainly carbon 12-14 alcohol) is used for sulfonation, neutralization, sedimentation, spray drying, due to the raw materials used and the production process. Due to its low purity and high impurity content, the impurities are mainly homologues of sodium decyl sulfate, sodium sulfate, sodium chloride and unreacted fatty alcohol, which restrict the use of the product.
- mixed fatty alcohol mainly carbon 12-14 alcohol
- the impurities are mainly homologues of sodium decyl sulfate, sodium sulfate, sodium chloride and unreacted fatty alcohol, which restrict the use of the product.
- the present invention provides a process for producing a simple high-purity sodium lauryl sulfate.
- the invention is achieved by the following technical solutions:
- a method for producing high-purity sodium lauryl sulfate which is characterized by the following steps:
- Sulfonation, neutralization sulfonation reaction is carried out by adding a sulfonating agent to lauryl alcohol to form a sulfate ester, and the sulfuric acid ester is neutralized with sodium hydroxide to obtain a liquid sodium dodecyl sulfate;
- the concentration of sodium dodecyl sulfate in the sodium sulfate is 10-38%, and the sulfonating agent is chlorosulfonic acid or sulfur trioxide.
- the method for producing high-purity sodium lauryl sulfate of the present invention wherein the mass concentration of sodium decyl sulfate in the solid material in the step (2) is 60-85%, and the weight water content of the solid material is 15-40 %.
- the mass concentration of sodium decyl sulfate in the product in the step (4) is higher than 97%.
- the production method of the present invention breaks through the production route of sodium decyl sulfate for conventional daily use materials, and is subjected to sulfonation, neutralization, concentration, crystallization purification, and dodecyl alcohol (also known as lauryl alcohol).
- dodecyl alcohol also known as lauryl alcohol.
- the steps of solid-liquid separation, crushing, low-temperature drying, etc., the purity of the product is as high as 97% or even 99%.
- the product can be used in the production of bio-pharmaceuticals and chemical reagents, and there is no three-discharge in the production process. energy saving.
- the semi-finished product is pulverized and molded (the appearance is in the form of a crystalline sheet), and 178.79 kg of the product is obtained by packaging, and the purity of the product is 99%.
- the production method of the present invention removes the inorganic salt and the unreacted fatty alcohol component which are produced by the conventional production process for preparing sodium dodecyl sulfate.
- the intrinsic quality is not destroyed, and the high purity is suitable for biopharmaceutical and chemical reagent grade sodium dodecyl sulfate.
- the purity of the product prepared by the method of the invention is higher than 97%, effectively improving the product quality, expanding the application range of the SDS product, and making it into the high-tech field; no waste discharge, environmental protection and energy saving.
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Abstract
The present invention falls within the field of sodium dodecyl sulfate, and particularly relates to a method for producing a high-purity sodium dodecyl sulfate. The method for producing the high-purity sodium dodecyl sulfate is characterized by comprising the following steps: (1) sulfonation and neutralization: a sulfonating agent is added into lauryl alcohol, and subjected to a sulfonation reaction so as to produce a sulfate, and the sulfate is subjected to a neutralization reaction with sodium hydroxide to obtain a liquid sodium dodecyl sulfate; (2) concentration; (3) drying: the concentrated solid material is dried at a drying temperature of 40-100°C; and (4) crushing, shaping and packaging, the dried solid material is crushed, shaped, and packaged, so as to obtain the product. The present invention has the beneficial effects that the production method of the present invention breaks the conventional production process route for sodium dodecyl sulfate for household raw materials, the product has a purity of up to 97% or even above 99%, and can be used in biological pharmacy and chemical reagent production.
Description
一种高纯度十二垸基硫酸钠的生产方法 Method for producing high-purity sodium decyl sulfate
(一） 技术领域 (1) Technical field
本发明属于十二垸基硫酸钠领域， 特别涉及一种高纯度十二垸基硫酸 钠的生产方法。 The invention belongs to the field of sodium dodecyl sulfate, and particularly relates to a method for producing high-purity sodium dodecyl sulfate.
(二） 背景技术 (2) Background technology
目前工业化的十二垸基硫酸钠属日用品用原料， 由于常规的工艺路线 采用混合脂肪醇（以碳 12-14醇为主)磺化、 中和、 沉降、 喷雾干燥， 由于 所用原料及生产工艺所限， 其产品纯度低、 杂质含量高， 杂质主要是十二 垸基硫酸钠的同系物、 硫酸钠、 氯化钠及未反应的脂肪醇， 制约了产品的 使用范围。 The currently industrialized sodium dodecyl sulfate is a raw material for daily necessities. Due to the conventional process, mixed fatty alcohol (mainly carbon 12-14 alcohol) is used for sulfonation, neutralization, sedimentation, spray drying, due to the raw materials used and the production process. Due to its low purity and high impurity content, the impurities are mainly homologues of sodium decyl sulfate, sodium sulfate, sodium chloride and unreacted fatty alcohol, which restrict the use of the product.
(三） 发明内容 (3) Invention content
本发明提供了一种制备简单的高纯度十二烷基硫酸钠的生产方法。 本发明是通过如下技术方案实现的： The present invention provides a process for producing a simple high-purity sodium lauryl sulfate. The invention is achieved by the following technical solutions:
一种高纯度十二烷基硫酸钠的生产方法， 其特殊之处在于： 包括以下 步骤： A method for producing high-purity sodium lauryl sulfate, which is characterized by the following steps:
( 1 ) 磺化、 中和： 月桂醇中加入磺化剂发生磺化反应生成硫酸酯， 硫 酸酯与氢氧化钠发成中和反应得到液体十二垸基硫酸钠； (1) Sulfonation, neutralization: sulfonation reaction is carried out by adding a sulfonating agent to lauryl alcohol to form a sulfate ester, and the sulfuric acid ester is neutralized with sodium hydroxide to obtain a liquid sodium dodecyl sulfate;
(2)浓缩：将液体十二烷基硫酸钠浓縮得到呈晶体亮片状的固态物料； (2) Concentration: concentration of liquid sodium lauryl sulfate to obtain a solid material in the form of a crystal glitter;
(3 ) 干燥： 对浓缩后的固态物料进行干燥， 干燥温度为 40°C-100°C， 得到半成品； (3) Drying: drying the concentrated solid material at a drying temperature of 40 ° C to 100 ° C to obtain a semi-finished product;
(4) 粉碎、 成型、 包装： 将半成品粉碎、 成型后包装得到产品。 (4) Crushing, molding, and packaging: The semi-finished product is pulverized and molded to obtain the product.
相对应的化学反应式为： 磺化剂 The corresponding chemical reaction formula is: sulfonating agent
(:Ή3 ( CH2 ) n OH—— ^ (； Ή3 ((: ) π Ο¾03Η (: Ή 3 (CH 2) n OH-- ^ (; Ή 3 ((:) π Ο¾0 3 Η
ΝηύΗ ΝηύΗ
CH3 CCH2 ) ii 0803H ► (;Ή3 ( C¾ ) nOS03Na 本发明的高纯度十二垸基硫酸钠的生产方法， 步骤 （1 ) 中液体十二烷
基硫酸钠中十二垸基硫酸钠质量百分浓度为 10-38%， 磺化剂为氯磺酸或三 氧化硫。 CH 3 CCH 2 ) ii 080 3 H ► ( ;Ή 3 ( C3⁄4 ) nOS0 3 Na The production method of the high-purity sodium dodecyl sulfate of the present invention, the liquid dodecane in the step (1) The concentration of sodium dodecyl sulfate in the sodium sulfate is 10-38%, and the sulfonating agent is chlorosulfonic acid or sulfur trioxide.
本发明的高纯度十二烷基硫酸钠的生产方法， 步骤 （2) 中固态物料中 十二垸基硫酸钠的质量百分浓度为 60-85%， 固态物料的重量含水量为 15-40%。 The method for producing high-purity sodium lauryl sulfate of the present invention, wherein the mass concentration of sodium decyl sulfate in the solid material in the step (2) is 60-85%, and the weight water content of the solid material is 15-40 %.
本发明的高纯度十二垸基硫酸钠的生产方法， 步骤 （4) 中产品中十二 垸基硫酸钠质量百分浓度高于 97%。 In the method for producing high-purity sodium dodecyl sulfate of the present invention, the mass concentration of sodium decyl sulfate in the product in the step (4) is higher than 97%.
本发明的有益效果： 本发明的生产方法突破了常规日用原料用十二垸 基硫酸钠生产工艺路线， 采用十二醇 （又名月桂醇） 经磺化、 中和、 浓缩、 结晶提纯、 固液分离、 破碎、 低温干燥等步骤， 其产品纯度高达 97%甚至 99%以上， 产物作为一种新型的阴离子表面活性剂， 可用于生物制药、化学 试剂生产， 且生产过程中无三废排放、 环保节能。 Advantageous Effects of the Invention: The production method of the present invention breaks through the production route of sodium decyl sulfate for conventional daily use materials, and is subjected to sulfonation, neutralization, concentration, crystallization purification, and dodecyl alcohol (also known as lauryl alcohol). The steps of solid-liquid separation, crushing, low-temperature drying, etc., the purity of the product is as high as 97% or even 99%. As a new type of anionic surfactant, the product can be used in the production of bio-pharmaceuticals and chemical reagents, and there is no three-discharge in the production process. energy saving.
(四） 具体实施方式 (4) Specific implementation methods
实施例 1 : Example 1
本实施例高纯度十二垸基硫酸钠的生产方法， 其歩骤为： The production method of the high-purity sodium dodecyl sulfate in this embodiment is as follows:
( 1 ) 磺化、 中和： 将 190.18kg月桂醇 （质量百分浓度为 98.1%) 中加 入 116.52kg氯磺酸液体发生磺化反应生成硫酸酯 （CH3(CH2)uOS03H)， 硫 酸酯与 118kg质量百分浓度为 34%的 NaOH发成中和反应得到液体十二烷 基硫酸钠， 经测定该液体十二垸基硫酸钠中十二垸基硫酸钠的质量百分浓 度为 38%， 177kg; (1) Sulfonation, neutralization: 190.18 kg of lauryl alcohol (mass concentration of 98.1%) was added to 116.52 kg of chlorosulfonic acid liquid to sulfonate to form sulfate (CH 3 (CH 2 ) u OS0 3 H) , the sulfate ester is neutralized with 118 kg of a concentration of 34% by mass of NaOH to obtain liquid sodium lauryl sulfate, and the mass concentration of sodium dodecyl sulfate in the liquid sodium dodecyl sulfate is determined. 38%, 177kg;
(2) 浓缩、 结晶提纯、 固液分离： 将液体十二烷基硫酸钠浓缩、 析出 295kg呈晶体亮片状的固态物料，十二烷基硫酸钠占固态物料的质量分数为 60%， 该固态物料的重量含水量为 39%; (2) Concentration, crystallization purification, solid-liquid separation: The liquid sodium lauryl sulfate is concentrated and precipitated into 295 kg of a solid material in the form of a crystal glitter. The sodium dodecyl sulfate accounts for 60% by mass of the solid material. The weight of the material has a moisture content of 39%;
(3 )低温干燥： 对浓缩后的固态物料在 100°C进行干燥， 得到半成品； (3) Low temperature drying: drying the concentrated solid material at 100 ° C to obtain a semi-finished product;
(4 ) 粉碎、 成型、 包装： 将半成品粉碎、 成型 （外观呈晶体片状）， 包装得到 178.79kg产品， 产品纯度为 99%。 (4) Crushing, molding, and packaging: The semi-finished product is pulverized and molded (the appearance is in the form of a crystalline sheet), and 178.79 kg of the product is obtained by packaging, and the purity of the product is 99%.
其反应式为：
Its reaction formula is:
(:Ή3 (CH2) nOH (： Ή3 (CH2) u (夏 )3H (:Ή 3 (CH 2 ) nOH (: Ή 3 (CH 2 ) u (summer) 3 H
CH3 (C,H2) 11OSO3H »-CH3 (CH2) nOS03Na 实施例 2: CH 3 (C, H 2) 11OSO3H »-CH 3 (CH 2 ) nOS0 3 Na Example 2:
本实施例高纯度十二垸基硫酸钠的生产方法， 其步骤为： The production method of the high-purity sodium dodecyl sulfate of the present embodiment, the steps of which are as follows:
(1)磺化、中和： 188.26kg月桂醇（质量百分浓度为 99%)中加入 82.5kg 三氧化硫气体发生磺化反应生成硫酸酯 （CH3(CH2)„OS03H)， 硫酸酯与 200kg质量百分浓度为 20%的 NaOH发成中和反应得到液体十二垸基硫酸 钠， 经测定该液体十二垸基硫酸钠中十二烷基硫酸钠的质量百分浓度为 10%, 42.48kg; (1) Sulfonation, neutralization: 8.5.26 kg of lauryl alcohol (99% by mass) was added with 82.5 kg of sulfur trioxide gas to form a sulfonate (CH 3 (CH 2 ) „OS0 3 H). The sulfate ester was neutralized with 200 kg of 20% by mass of NaOH to obtain liquid sodium dodecyl sulfate. The mass concentration of sodium lauryl sulfate in the liquid sodium dodecyl sulfate was determined to be 10%, 42.48kg;
(2) 浓縮、 结晶提纯、 固液分离： 将液体十二垸基硫酸钠浓缩、 析出 49.97kg呈晶体亮片状的固态物料， 十二烷基硫酸钠占固态物料的质量分数 为 85%， 该固态物料的重量含水量为 13.1%; (2) Concentration, crystallization purification, solid-liquid separation: The liquid sodium dodecyl sulfate is concentrated and precipitated into 49.97 kg of solid material in the form of crystal glitter. The sodium dodecyl sulfate accounts for 85% of the mass of the solid material. The solid material has a weight water content of 13.1%;
(3) 低温干燥： 对浓缩后的固态物料在 40°C进行干燥， 得到半成品； (3) Low temperature drying: drying the concentrated solid material at 40 ° C to obtain a semi-finished product;
(4) 粉碎、 成型、 包装： 将本产品粉碎、 成型 （外观呈粉状） 后包装 得到 43.74kg产品， 产品纯度为 97.1%。 (4) Crushing, molding, and packaging: The product is pulverized and molded (appearance in powder form) and packaged to obtain 43.74kg of product with a purity of 97.1%.
其反应式为： so3 Its reaction formula is: so 3
(:，¾ ((： Ή2) u OH (CH2) nOS03H (:,3⁄4 ((: Ή 2 ) u OH (CH 2 ) nOS0 3 H
(： Ή3 ((： Ή2) nOS03H ► CH3 (C¾) nOS03Na 实施例 3: (: Ή 3 ((: Ή 2 ) nOS0 3 H ► C H 3 (C3⁄4) n OS0 3 Na Example 3:
本实施例高纯度十二烷基硫酸钠的生产方法， 其步骤为： The production method of the high-purity sodium dodecyl sulfate in this embodiment has the following steps:
(1) 磺化、 中和： 187.32kg月桂醇 （质量百分浓度为 99.5%) 中加入 96kg三氧化硫气体发生磺化反应生成硫酸酯 （CH^CH^uOSC H), 硫酸酯 与 150kg质量百分浓度为 27%的 NaOH发成中和反应得到液体十二垸基硫 酸钠， 经测定该液体十二垸基硫酸钠中十二垸基硫酸钠的质量百分浓度为 19%, 80.54kg; (1) Sulfonation, neutralization: 187.32kg lauryl alcohol (99.5% by mass). Sulfurated (96^^^^^^^^^ The neutral concentration of 27% NaOH was neutralized to obtain liquid sodium dodecyl sulfate. The concentration of sodium dodecyl sulfate in the liquid sodium dodecyl sulfate was determined to be 19%, 80.54 kg. ;
(2) 浓缩、 结晶提纯、 固液分离： 将液体十—垸基硫酸钠浓缩、 析出
111.86kg 呈晶体亮片状的固态物料， 十二垸基硫酸钠占固态物料的质量分 数为 72%， 该固态物料的重量含水量为 27.5%; (2) Concentration, crystallization purification, solid-liquid separation: Concentration and precipitation of liquid decyl sulfonate 111.86kg is a solid material in the form of a crystal sequin, the mass fraction of sodium decyl sulfate accounts for 72% of the solid material, and the weight of the solid material is 27.5%;
(3 ) 低温干燥： 对浓缩后的固态物料在 70°C进行干燥； (3) Low temperature drying: drying the concentrated solid material at 70 ° C;
(4) 粉碎、 成型、 包装： 将干燥后的固态物料粉碎、 成型 （外观呈球 状或针状）包装得到 80.94kg产品， 产品纯度为 99.5%。 (4) Crushing, molding, and packaging: The dried solid material is pulverized and molded (the appearance is spherical or needle-like) to obtain 80.94 kg of product, and the purity of the product is 99.5%.
其反应式为： Its reaction formula is:
S03 S0 3
H3 (CH2 ) 11 OH - CH3 (CH2 ) nOS03H H 3 (CH 2 ) 11 OH - CH 3 (CH 2 ) n OS0 3 H
NnOH NnOH
CH3 (CH2 ) 11 OSO3H ^ CH3 (CH2 ) n OS03Na 本发明的生产方法， 去除了传统生产工艺制备十二垸基硫酸钠而生成 的无机盐、 未反应脂肪醇的成分， 内在质量不被破坏， 制得高纯度适用于 生物制药及化学试剂级的十二垸基硫酸钠。 通过本发明的方法制备产品的 纯度高于 97%， 有效地提升了产品质量， 拓展了 SDS产品的应用范围， 使 之进入高新技术领域； 无三废排放、 环保节能。 CH 3 (CH 2 ) 11 OSO3H ^ CH 3 (CH 2 ) n OS0 3 Na The production method of the present invention removes the inorganic salt and the unreacted fatty alcohol component which are produced by the conventional production process for preparing sodium dodecyl sulfate. The intrinsic quality is not destroyed, and the high purity is suitable for biopharmaceutical and chemical reagent grade sodium dodecyl sulfate. The purity of the product prepared by the method of the invention is higher than 97%, effectively improving the product quality, expanding the application range of the SDS product, and making it into the high-tech field; no waste discharge, environmental protection and energy saving.
以上所述， 仅是本发明的较佳实施例而已， 并非是对本发明作其它形 式的限制， 任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以 变更或改型为同等变化的等效实施例。 但凡是未脱离本发明技术方案内容， 依据本发明的技术实质对以上实施例所作的任何简单修改等同变化与改型 仍属本发明技术方案保护范围。
The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalents. Example. Any simple modifications and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the technical solutions of the present invention.
Claims
1. 一种高纯度十二垸基硫酸钠的生产方法， 其特征在于： 包括以下步骤：A method for producing high-purity sodium dodecyl sulfate, which comprises the steps of:
( 1 )磺化、 中和： 月桂醇中加入磺化剂发生磺化反应生成硫酸酯， 硫酸酯 与氢氧化钠发成中和反应得到液体十二垸基硫酸钠； (1) Sulfonation, neutralization: Sulfonating agent is added to lauryl alcohol to form a sulfonate to form a sulfate, and the sulfate is neutralized with sodium hydroxide to obtain a liquid sodium dodecyl sulfate;
(2) 浓缩： 将液体十二垸基硫酸钠浓缩得到呈晶体亮片状的固态物料； (2) Concentration: Concentrate the liquid sodium dodecyl sulfate to obtain a solid material in the form of a crystal glitter;
(3 )干燥： 对浓縮后的固态物料进行干燥， 干燥温度为 40°C-100°C， 得到 半成品； (3) Drying: drying the concentrated solid material at a drying temperature of 40 ° C to 100 ° C to obtain a semi-finished product;
(4) 粉碎、 成型、 包装： 将本产品粉碎、 成型后包装得到产品。 (4) Crushing, molding, and packaging: The product is pulverized, molded, and packaged to obtain the product.
2. 根据权利要求 1所述的高纯度十二烷基硫酸钠的生产方法，其特征在于: 步骤 （1 ) 中液体十二烷基硫酸钠中十二垸基硫酸钠质量百分浓度为 10-38%, 磺化剂为氯磺酸或三氧化硫。 The method for producing high-purity sodium lauryl sulfate according to claim 1, wherein the concentration of sodium dodecyl sulfate in the liquid sodium lauryl sulfate in the step (1) is 10 -38%, the sulfonating agent is chlorosulfonic acid or sulfur trioxide.
3. 根据权利要求 1所述的高纯度十二垸基硫酸钠的生产方法，其特征在于: 步骤 （2) 中固态物料中十二垸基硫酸钠的质量百分浓度为 60-85%， 固 态物料的重量含水量为 15-40%。 The method for producing high-purity sodium dodecyl sulfate according to claim 1, wherein: the mass concentration of sodium dodecyl sulfate in the solid material in the step (2) is 60-85%, The solid material has a weight water content of 15-40%.
4. 根据权利要求 1所述的高纯度十二垸基硫酸钠的生产方法，其特征在于: 步骤 （4) 中产品中十二垸基硫酸钠质量百分浓度高于 97%。
The method for producing high-purity sodium dodecyl sulfate according to claim 1, wherein the mass concentration of sodium dodecyl sulfate in the product in the step (4) is higher than 97%.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278961A (en) * | 2015-05-18 | 2017-01-04 | 上海紫源制药有限公司 | A kind of synthetic method of sodium tetradecyl sulfate |
| CN106278958A (en) * | 2015-05-18 | 2017-01-04 | 上海紫源制药有限公司 | A kind of synthetic method of sodium tetradecyl sulfate |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103804461B (en) * | 2014-02-17 | 2016-01-06 | 浙江大学 | The preparation method of tea saponin sulfuric acid ester surfactant and product |
| CN106977428B (en) * | 2017-03-17 | 2018-08-21 | 内蒙古工业大学 | Improve the method for preparing lauryl sodium sulfate |
| CN107501137B (en) * | 2017-08-29 | 2023-09-05 | 东明俱进化工有限公司 | Purification process and equipment for lithium dodecyl sulfate |
| CN107602423A (en) * | 2017-08-29 | 2018-01-19 | 东明俱进化工有限公司 | A kind of production technology and its device of powdered bay alcohol sulfuric ester sylvite |
| CN107602431A (en) * | 2017-09-12 | 2018-01-19 | 广东丽臣奥威实业有限公司 | A kind of high concentration lauryl sodium sulfate liquid and preparation method thereof |
| CN108546240B (en) * | 2018-04-11 | 2020-12-25 | 上海奥威日化有限公司 | K12 precursor composition for preparing K12 dry product |
| CN110590610A (en) * | 2019-06-17 | 2019-12-20 | 中轻化工绍兴有限公司 | Preparation method of high-quality sodium alkyl sulfate |
| AR121187A1 (en) * | 2019-12-27 | 2022-04-27 | Chugai Pharmaceutical Co Ltd | METHOD TO CLASSIFY, EVALUATE OR MANUFACTURE SODIUM LAURYL SULFATE FROM RAW MATERIAL OR PHARMACEUTICAL FORMULATION CONTAINING IT |
| CN112500320A (en) * | 2020-12-16 | 2021-03-16 | 江苏优扬药业有限公司 | Preparation device and method of pharmaceutical adjuvant sodium dodecyl sulfate |
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| RU2271351C1 (en) * | 2004-09-24 | 2006-03-10 | ГОУ ВПО Белгородский государственный университет | Method for preparing sodium lauryl sulfate |
| CN101235001A (en) * | 2007-12-21 | 2008-08-06 | 王伟松 | Synthetic method of fatty alcohol sulfate |
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| US4322367A (en) * | 1979-11-26 | 1982-03-30 | Colgate-Palmolive Company | Deoiling of aqueous solutions of sodium lauryl sulfate |
| CA2136651A1 (en) * | 1992-05-28 | 1993-12-09 | Eugene F. Lutz | Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate |
| WO1997038972A1 (en) * | 1996-04-16 | 1997-10-23 | The Procter & Gamble Company | Process for manufacturing sulphates of longer chain branched alkanols and alkoxylated alkanols |
| JP2000136398A (en) * | 1998-11-02 | 2000-05-16 | Lion Corp | Manufacture of anionic surfactant |
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- 2013-01-07 CN CN2013100046299A patent/CN103058894A/en active Pending
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| RU2271351C1 (en) * | 2004-09-24 | 2006-03-10 | ГОУ ВПО Белгородский государственный университет | Method for preparing sodium lauryl sulfate |
| CN101235001A (en) * | 2007-12-21 | 2008-08-06 | 王伟松 | Synthetic method of fatty alcohol sulfate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278961A (en) * | 2015-05-18 | 2017-01-04 | 上海紫源制药有限公司 | A kind of synthetic method of sodium tetradecyl sulfate |
| CN106278958A (en) * | 2015-05-18 | 2017-01-04 | 上海紫源制药有限公司 | A kind of synthetic method of sodium tetradecyl sulfate |
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