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Method and device for the sulfonation or sulfation of sulfonatable or sulfatable organic substances and for performing faster, strongly exothermic gas/liquid reactions

A sulfation, organic liquid technology, applied in the direction of organic chemistry methods, chemical instruments and methods, preparation of organic compounds, etc., can solve problems such as yield loss

Inactive Publication Date: 2011-04-13
CHEMITHON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cleaning of the reactor is necessary, which results in a loss of yield

Method used

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  • Method and device for the sulfonation or sulfation of sulfonatable or sulfatable organic substances and for performing faster, strongly exothermic gas/liquid reactions
  • Method and device for the sulfonation or sulfation of sulfonatable or sulfatable organic substances and for performing faster, strongly exothermic gas/liquid reactions
  • Method and device for the sulfonation or sulfation of sulfonatable or sulfatable organic substances and for performing faster, strongly exothermic gas/liquid reactions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1 - Preparation of lauryl ether (2EO) sulfate, sodium salt, in an annular gap falling film reactor according to the invention

[0054] in accordance with Figure 5 In the implementation of the annular gap falling film reactor, the outer diameter 124.1mm, inner diameter 116.9mm, thin-walled (about 0.5mm) double-layer pipe with a gap of 2.6mm is installed in the center of the annular gap (annular space) (2) (3). The entire tube distance (wall thickness plus gap) is 3.6mm and the length is 330mm. The diameter of reactor (inner diameter of outer tube (1)) is 5 inches (127mm), and reactor length is 1650mm, and annular gap (2) width is 6.5mm, and in outer tube (1) inner wall (6) and inner tube (1) ) have raw material (4) distributor slits (5) on the outer wall (7) respectively, and each have a cooling jacket (14) (see Figure 5 ). Form the desired size of the inner pipe diameter of the double-layer pipe (3), so that SO 3 50% of the gas is introduced through the ann...

Embodiment 2

[0067] Example 2 - Preparation of lauryl ether (3EO) sulfate, sodium salt, liquid in an annular gap falling film reactor according to the invention

[0068] In the embodiment of the annular gap falling film reactor, a thin-walled double-layer tube is installed in the annular gap, the tube distance (gap) is 3.6 mm, and the length is 330 mm. The reactor has a diameter of 5 inches (127 mm), a length of 1650 mm, and a 6.5 mm wide annular gap, a feed distributor slit on the inner wall of the outer tube and an outer wall of the inner tube, and each has a cooling jacket (see Figure 5 ).

[0069] Through the two distributor slits, in the amount of 297 kg / h (mass flow meter) (=0.906 kmol / h of fatty alcohol ethoxylate), at 40 ° C on the surface of the two annular gaps with 3 moles C12 / 14 fatty alcohol ethoxylate of ethylene oxide (fatty alcohol = ALFOL C12 / C14, C12 content 51-57%, C14 content 41-47%, molecular weight 196) (molecular weight 328, APHA color = 10) . Form the required di...

Embodiment 3

[0081] Example 3 - Preparation of α-olefin sulfonate, sodium salt in a middle ring gap falling film reactor according to the invention

[0082] In the embodiment of the annular gap falling film reactor, a thin-walled double-layer tube is installed in the annular gap, and its tube distance (gap) is 6.5 mm and its length is 120 mm. The reactor has a diameter of 5 inches (127 mm), a length of 2 m, an annular gap width of 10 mm, a feed distributor slit on the inner wall of the outer tube and an outer wall of the inner tube, and each has a cooling jacket (see Figure 5 ).

[0083] C12 / 16 α-olefins ( C12 up to 2%, C14=62-70%, C16 content 29-37%, molecular weight 214, APHA=30). Form the desired size of the inner tube diameter of the double-layer tube so that the SO 3 50% of the gas is introduced through the annular gap and 50% is introduced through the double pipe. The feed temperature of the cooling water in the two cooling jackets was adjusted to 15°C. SO produced by burning su...

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Abstract

A method and a device for the sulfonation or the sulfation of organic liquid raw materials with an S03 / air mixture and other reaction gases in order to perform rapid, highly exothermic gas-liquid reactions in conventional thin-layer falling-film reactors are disclosed. The introduction of the S03 / air mixture occurs through several feed locations, which are located within (along) the reaction tube or reaction tubes or in the annular gap of annular-gap falling-film reactors. High peak temperatures, undesirable byproducts, worsening of the color and local oversulfation or oversulfonation, which leads to side reactions, are largely avoided.

Description

technical field [0001] The present invention relates to a method for the sulphation or sulphonation of sulphatable or sulphonatable organic substances as well as for the rapid and highly absorptive process in conventional thin-layer falling film reactors, such as tubular reactors or annular gap reactors. Improved process for thermal gas-liquid reactions, characterized in that the SO 3 The introduction of the / air mixture is through several feed points within the reaction tube (along the reaction tube) or within the annular gap of an annular gap falling film reactor. Background technique [0002] The sulfation or sulfonation of organic compounds is carried out according to the current method, comprising: combining a liquid organic starting material with an SO containing 3 gas mixture (for example, with reforming gas, also known as reformer gas). The sulfonation or sulfation reactions are highly exothermic reactions and therefore accompanied by locally high concentrations of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J10/02B01J19/00B01J19/24C07B45/02C07C303/00
CPCB01J4/001B01J2219/185B01J2219/1943C07B45/00B01J2219/00094B01J10/02C07B45/02B01J19/249B01J19/247C07C303/32C07C303/06B01J2219/2454B01J19/002C07C303/24B01J2219/2458C07C305/10C07C309/20
Inventor 鲁道夫·艾格纳霍斯特·罗伊纳
Owner CHEMITHON
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