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Method for utilizing byproduct sodium chloride in industrial production of dimethyl diallyl ammonium chloride in cationic emulsion

A technology of dimethyl diallyl ammonium chloride and cationic emulsion, which is applied in the preparation of cationic emulsion and the application of industrial by-product sodium chloride in cationic emulsion, which can solve the problem of product demulsification and gelling, and negative benefits of enterprises , increasing the amount of emulsion used, etc.

Active Publication Date: 2022-04-12
SNF CHINA FLOCCULANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the technologies for treating the organic matter in the by-product sodium chloride include pyrolysis, rotary kiln incineration, graded critical carbonization and other high-temperature treatment methods. These methods consume a lot of energy, and the value of the produced sodium chloride is not enough to meet the cost requirements. demand, which brings negative benefits to the enterprise
At present, many cationic emulsions have poor frost resistance in extremely cold regions, which leads to product breakage and gelation, which brings losses to factories and customers
Many domestic manufacturers use sodium chloride to improve the frost resistance of their products, but many customers use underground hard water to dissolve the emulsion in order to save costs, resulting in longer emulsion dissolution time (conversion time 80%), increasing the amount of emulsion used, making the customer's cost increase

Method used

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  • Method for utilizing byproduct sodium chloride in industrial production of dimethyl diallyl ammonium chloride in cationic emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The specific operation is as follows:

[0021] (1) Water phase preparation: add 410 grams of acryloyloxyethyltrimethylammonium chloride and 225 grams of acrylamide to 75 grams of deionized water and mix, add 12 grams of oxalic acid, and fully dissolve it with the monomer Mix, adjust pH to 4.6 with 48% sodium hydroxide, add 1 gram of sodium bromate, 0.3 gram of pentasodium diethylenetriaminepentaacetic acid, 0.008 gram of sodium hypophosphite, 0.016 gram of anhydrous copper sulfate, 0.05 gram of the third monomer N, N-methylenebisacrylamide, fully stirred and dissolved to obtain an aqueous phase;

[0022] (2) Oil phase preparation: Weigh 250 grams of white oil, add 36 grams of compounded surfactant (Span60 / Tween60 is 2.5:1) under stirring, and mix well to obtain a clear oil phase;

[0023] (3) Preparation of emulsion: Slowly add the water phase to the rapidly stirring oil phase, and stir for 5 minutes after the addition. Use a high-power emulsification pump to perform ...

Embodiment 2

[0027] The specific operation is as follows:

[0028] (1) Water phase preparation: add 428 grams of acryloyloxyethyltrimethylammonium chloride and 214 grams of acrylamide to 65 grams of deionized water and mix, add 12 grams of oxalic acid and 45 grams of by-product sodium chloride , fully dissolve and mix it with the monomer, adjust the pH to 4.3 with 48% sodium hydroxide, add 0.9 grams of sodium bromate, 0.3 grams of pentasodium diethylenetriaminepentaacetic acid, 0.007 grams of sodium hypophosphite, and 0.016 grams of anhydrous sulfuric acid Copper, 0.05 g of the third monomer N, N-methylenebisacrylamide, fully stirred and dissolved to obtain an aqueous phase;

[0029] (2) Oil phase preparation: Weigh 250 grams of white oil, add 36 grams of compounded surfactant (Span60 / Tween60 is 2.5:1) under stirring, and mix thoroughly to obtain a clear oil phase;

[0030] (3) Preparation of emulsion: Slowly add the water phase to the rapidly stirring oil phase, and stir for 5 minutes af...

Embodiment 3

[0034] The specific operation is as follows:

[0035](1) Water phase preparation: add 422 grams of acryloyloxyethyltrimethylammonium chloride and 208 grams of acrylamide to 68 grams of deionized water and mix, add 12 grams of oxalic acid and 46 grams of by-product sodium chloride , fully dissolve and mix it with the monomer, adjust the pH to 4.4 with 48% sodium hydroxide, add 1 gram of sodium bromate, 0.3 gram of pentasodium diethylenetriaminepentaacetic acid, 0.009 gram of sodium hypophosphite, and 0.016 gram of anhydrous sulfuric acid Copper, 0.05 g of the third monomer N, N-methylenebisacrylamide, fully stirred and dissolved to obtain an aqueous phase;

[0036] (2) Oil phase preparation: Weigh 240 grams of white oil, add 36 grams of compounded surfactant (Span60 / Tween60 is 2.5:1), 10 grams of (Z)-N,N-di(2-hydroxy Ethyl)-9-octadecenoic acid amide, mixed well to obtain a clear oil phase;

[0037] (3) Preparation of emulsion: Slowly add the water phase to the rapidly stirrin...

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Abstract

The invention relates to a method for utilizing a byproduct sodium chloride in a cationic emulsion in industrial production of dimethyl diallyl ammonium chloride, which comprises the following steps of: adding a cationic monomer and acrylamide into deionized water, adding oxalic acid, adjusting the pH value of a solution, adding sodium chloride which is a completely dehydrated byproduct in industrial production of dimethyl diallyl ammonium chloride, and stirring to obtain the cationic emulsion. Adding sodium bromate, Versenex80, sodium hypophosphite, anhydrous cupric sulfate and a third monomer, and fully stirring and dissolving to obtain a water phase; adding a compound surfactant while stirring white oil, and mixing and dissolving to obtain a clear and transparent oil phase; and adding the water phase into the oil phase, stirring, carrying out high-speed shearing emulsification, blowing nitrogen for replacement, dropwise adding a sodium pyrosulfite solution until the reaction is finished to obtain a stable emulsion, and adding an emulsifier under shearing to obtain the stable cationic emulsion with the byproduct sodium chloride. The method can effectively consider the utilization of the byproduct sodium chloride and the conversion time and conversion rate of the cationic emulsion in the low-temperature hard water, and has better anti-freezing performance.

Description

technical field [0001] The invention relates to a method for preparing a cationic emulsion, in particular to a method for utilizing an industrial by-product sodium chloride with good environmental protection and utilization of resource components in a cationic emulsion, and belongs to the technical field of waste utilization. Background technique [0002] China is a big country in chemical production. At present, a large amount of by-product sodium chloride is produced in the production process of many chemical products, especially fine chemical products. The by-product sodium chloride often contains some toxic and harmful organic substances, which cannot be directly used as resources. . Only waiting for hazardous waste disposal, the treatment cost is high. Sodium chloride itself is a basic chemical raw material and a valuable resource of the country. It is of far-reaching significance to explore the resource utilization of by-product sodium chloride. [0003] In the past,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/34C08F220/56C08F222/38C08F2/44C08F2/32C08F6/14C08K3/16
Inventor 于小飞凌静常城
Owner SNF CHINA FLOCCULANT
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