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A centrifugal spray dedioxane device for ethoxylated alkyl sulfate

A technology of ethoxylated alkyl and centrifugal spraying, which is applied in organic chemistry, chemical industry, climate sustainability, etc. It can solve the problems of high equipment and control requirements, unstable system, large equipment investment, etc., and achieve simple structure , Enhance removal efficiency and reduce energy consumption

Active Publication Date: 2015-09-09
ZANYU TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: the product is cooled during the neutralization process, and needs to be reheated after entering the remover, which consumes a lot of energy; a new process needs to be added and the investment in equipment is large
Its disadvantages are: high requirements for equipment and control, unstable system, and difficult adjustment
But its disadvantage is that the material needs to be heated by a heating device before entering the vacuum drying chamber, which consumes a lot of energy.

Method used

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  • A centrifugal spray dedioxane device for ethoxylated alkyl sulfate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The first step is to neutralize the material (ethoxylated alkyl sulfate), and then start the centrifugal spray tower; the speed of the centrifugal spray tower is 12000±100rpm, the temperature of the dry air is 50±2°C, and the flow rate of the dry air is 3000±50m 3 / h;

[0041] The second step is to put the material into the feeding device; the feeding device sends the material into the centrifugal spray tower to remove dioxane, and the material from which dioxane is removed is concentrated at the bottom of the centrifugal spray tower; The centrifugal mixed airflow generated in the spray tower is subjected to centrifugal separation, and the separated materials are also concentrated at the bottom of the centrifugal spray tower; the liquid level at the bottom of the centrifugal spray tower should be kept between 40 and 50 cm;

[0042] The third step is to inspect the materials at the bottom of the centrifugal spray tower;

[0043] If the content of dioxane meets the stan...

Embodiment 2

[0046] The first step is to neutralize the material (ethoxylated alkyl sulfate), and then start the centrifugal spray tower; the speed of the centrifugal spray tower is 8000±100rpm, the temperature of the dry air is 35±2°C, and the flow rate of the dry air is 4000±50m 3 / h;

[0047] The second step is to put the material into the feeding device; the feeding device sends the material into the centrifugal spray tower to remove dioxane, and the material from which dioxane is removed is concentrated at the bottom of the centrifugal spray tower; The centrifugal mixed airflow generated in the spray tower is subjected to centrifugal separation, and the separated materials are also concentrated at the bottom of the centrifugal spray tower; the liquid level at the bottom of the centrifugal spray tower should be kept between 30 and 60 cm;

[0048] The third step is to inspect the materials at the bottom of the centrifugal spray tower;

[0049] If the content of dioxane meets the stand...

Embodiment 3

[0052] The first step is to neutralize the material (ethoxylated alkyl sulfate) first, and then start the centrifugal spray tower; the speed of the centrifugal spray tower is 10000±100rpm, the temperature of the dry air is 55±2°C, and the flow rate of the dry air is 6000±50m 3 / h;

[0053] The second step is to put the material into the feeding device; the feeding device sends the material into the centrifugal spray tower to remove dioxane, and the material from which dioxane is removed is concentrated at the bottom of the centrifugal spray tower; The centrifugal mixed airflow generated in the spray tower is subjected to centrifugal separation, and the separated materials are also concentrated at the bottom of the centrifugal spray tower; the liquid level at the bottom of the centrifugal spray tower should be kept between 40 and 80 cm;

[0054] The third step is to inspect the materials at the bottom of the centrifugal spray tower;

[0055] If the content of dioxane meets th...

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Abstract

The invention relates to a device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray and aims to provide the device having the characteristics of high dioxane removal efficiency, low energy consumption, easiness in control and stable operation. The technical scheme is as follows: the device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray comprises a feeding hole, a feeding device, a centrifugal spray tower, a discharge device, a discharge hole and a recovery device which are all connected sequentially, wherein the recovery device is used for conveying the materials at the recovery outlet of the centrifugal spray tower to the feeding hole through a pipeline; in the centrifugal spray tower, the raw material feeding hole is communicated with the feeding device, dry air is inputted to an air inlet, the discharge hole is communicated with the discharge device, and the recovery outlet is communicated with the recovery device; the recovery device comprises a feeding pneumatic valve, a temporary storage tank, a feed-back pneumatic valve and a feed-back metering pump which are all sequentially communicated between the centrifugal spray tower and the feeding hole; the feeding device comprises a feeding pneumatic valve and feeding metering pump which are communicated in series; the discharge device comprises a discharge pneumatic valve and a discharge metering pump which are communicated in series.

Description

technical field [0001] The invention relates to a production and processing device for ethoxylated alkyl sulfate. Background technique [0002] Ethoxylated alkyl sulfate (hereinafter referred to as AES) is an important anionic surfactant, which is generally prepared from fatty alcohols through epoxy addition, sulfur trioxide sulfonation and neutralization processes; AES has good Wetting, decontamination, foam, emulsification, solubilization and other characteristics, strong resistance to hard water and good dispersibility of calcium soap, still has excellent decontamination, foam and wetting ability under hard water or phosphorus-free conditions, can be widely used Among various detergent products; AES also has very good biodegradability, high safety (low irritation and toxicity), mild performance and low skin irritation, after improving the composition of the formula (reducing the content of sodium tripolyphosphate dosage) can be applied to personal care products such as p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C305/10
CPCY02P20/10
Inventor 王文德杨春良胡剑品余新林付林建邹焕金
Owner ZANYU TECH GRP CO LTD