Method for preparing spherical anion surfactant

A technology for surfactants and anions, applied in the direction of surface active detergent compositions, surface active non-soap compounds and cleaning compositions, chemical instruments and methods, etc., can solve the difficulty of dissolving anionic surfactants, and easy pollution in production and use Environment, short molding time and other issues, to achieve the effect of eliminating the risk of decomposition, not easy to bridge and agglomerate, and appropriate strength

Active Publication Date: 2010-03-17
SINOLIGHT CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to solve the problem that the existing anionic surfactant production methods cannot produce spherical anionic surfactants with easy-to-control particle size, uniform particle size, and suitable particle density and strength, which leads to difficulty in dissolving the anionic surfactant and making it difficult to produce and use. The problem of polluting the environment, and solving the problem that the existing production method has high granulation pressure and high drying temperature, which is not suitable for the manufacture of heat-sensitive anionic surfactants, and the problem that the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1). After 136.5 kilograms of fatty alcohol sodium sulfate with 1.5% alkyl carbon number of 1.5% moisture content, 1.5 kilograms of methyl cellulose and 12.5 kilograms of water are mixed, with 300 kilograms / hour The speed is added to the twin-screw extruder, the screw speed is set to 100r / min, the extrusion temperature is 30°C, and the material is fed from the mesh with a diameter of The wet material is extruded into round strips in the radially distributed mesh plate. After continuing for 30 minutes, 150 kg of round strip-shaped wet material was obtained.

[0046] (2). Add 30 kg of the above-mentioned round strip materials to the spheronizer in batches, set the rotating speed of the centrifugal turntable to 400 rpm, and roll and granulate for 120 seconds to obtain 30 kg of spherical wet material. After carrying out 5 batches altogether, obtain the spherical shape wet material of 150 kilograms altogether.

[0047] (3). Send 150 kilograms of spherical wet materials in...

Embodiment 2

[0051] (1). After 142 kilograms of fatty alcohol sodium sulfate with 15% alkyl carbon number of 16~18 moisture content, 7.5 kilograms of anhydrous sodium sulfate and 0.75 kilogram of hydroxypropyl methyl cellulose are mixed, with The speed of 300 kg / hour is added to the twin-screw extruder, the screw speed is set to 50r / min, the extrusion temperature is 30°C, and the material is fed from the mesh with a diameter of The wet material is extruded into round strips in the radially distributed mesh plate. After continuing for 30 minutes, 150 kg of round strip-shaped wet material was obtained. .

[0052] (2). Put the extruded round strip material into the spheronizer according to each batch of 30 kg, set the temperature at 20°C, and the rotating speed of the centrifugal turntable at 600rpm, and roll and granulate for 90 seconds to obtain a batch of spheronizers. 30 kg of spherical wet material. After carrying out 5 batches of feeding, obtain 150 kilograms of spherical shape wet ...

Embodiment 3

[0057] (1). 10.75 kilograms of α-alkenyl sulfonate with a water content of 5% and 18 to 24 alkenyl carbon atoms, 3.5 kilograms of sodium p-toluenesulfonate and 0.75 kilograms of ethanol are mixed uniformly, and then mixed with 10 kilograms The speed per hour is added to the single-screw extruder, the screw speed is set to be 15r / min, the extrusion temperature is 100°C, and the material from the mesh diameter is , and extrude into a round bar-shaped wet material according to the radial distribution of the mesh plate. After continuing for 30 minutes, 15 kg of round strip-shaped wet material was obtained.

[0058] (2). Put the extruded round strip material into the spheronizer according to 0.5 kg per batch, set the temperature at 20°C, rotate the centrifugal disc at 3000rpm, roll and granulate for 30 seconds, and obtain a batch of spheronizers. 0.5 kg of spherical wet material. Carry out 30 batches of feeding altogether, obtain 15 kilograms of spherical shape wet materials.

...

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Abstract

The invention provides a method for preparing a spherical anion surfactant with little pollution, low forming temperature, short time and good physicochemical property. The method comprises the stepsof adopting a granulating process of extruding and rolling to mix anion surfactant main material and auxiliary granulating material, conveying the mixture into an extruder consisting of a screw feeder, an extruding cylinder and a mesh plate, and processing the mixture to prepare round bar-shaped materials with different lengths; conveying the round bar-shaped materials into a rolling granulator; cutting the round bar-shaped materials into the short cylindrical material grains with consistent lengths by breaking teeth on a rotating centrifugal rotary table of the rolling granulator, subsequently kneading all materials into spherical grains under the cooperation of the centrifugal rotary table, the grains, the granulator walls and the gas among the granulator walls, subsequently drying and cooling the spherical grains to obtain the spherical anion surfactant with the solid content of 95-99.5% by weight percentage. The method is applicable to the production of surfactant.

Description

technical field [0001] The invention relates to a manufacturing method of a spherical anionic surfactant product. The product can be used in civil and industrial cleaning agents, foaming agents for building materials and other products. Background technique [0002] In addition to being supplied in liquid form with a certain concentration (containing ~35% or ~70% active matter), anionic surfactants are also available in the form of powder (fine irregular particles), granules (slightly larger irregular particles), tablets, etc. It is supplied in solid form such as shape or needle (round bar) shape. Previously, solid form anionic surfactants were manufactured by: [0003] The low-concentration slurry with a water content of 60-70% (weight) is used as a raw material, and is prepared by a high-tower spray-drying method. Such as, Japanese patent: JP 55-69698, JP 53-39037, Chinese patent: the disclosed manufacturing method of ZL00131365.7; Prepared by spray drying. Such as Ja...

Claims

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Application Information

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IPC IPC(8): B01J2/20C11D1/28C11D1/22C11D1/12C11D17/06
CPCB01J2/20C11D10/00C11D17/06
Inventor 童年杨新长郭春伟徐美贞罗志昕
Owner SINOLIGHT CHEM
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