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Preparation method of an alkoxylate composition

A technology of alkoxylate and composition, which is applied in the field of preparation of alkoxylate composition, and can solve the problems of reducing, not mentioning, etc.

Inactive Publication Date: 2006-09-06
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, potassium hydroxide catalysts tend to have the disadvantage that they give a wider range of alkylene oxide adducts than desired for many applications
[0009] Potassium hydroxides also have the disadvantage in the preparation of alkoxylated alcohols that they tend to produce alkoxylated alcohols with high levels, typically of the order of 2% or more of free alcohol
However, there is likewise no mention in this document of a reduced content of organic compounds containing free active hydrogen or of a reduced content of 1,4-dioxane

Method used

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  • Preparation method of an alkoxylate composition
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  • Preparation method of an alkoxylate composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132] Preparation of DMC catalyst slurried in polypropylene glycol 400

[0133] 30 g of zinc chloride (220 mmol of zinc chloride, containing 0.2 mmol of zinc oxide) was dissolved in 100 g of deionized water at room temperature. The resulting solution was introduced into a 1 liter glass reactor equipped with a three-pitch blade turbine. Subsequently, 117 g tert-butanol (TBA) and 95 g deionized water were added.

[0134] A second solution of 12 g of potassium hexacyanocobaltate dissolved in 225 g of deionized water was added to the zinc chloride solution over 30 minutes. The contents of the reactor were stirred well during the addition. After the addition, the reactor contents were then stirred for 30 minutes and then allowed to stand overnight.

[0135] The next day, tert-butyl methyl ether (MTBE) (12 wt% based on the reactor contents) was added and the reactor contents were stirred for 5 minutes. The reactor contents were then allowed to stand for 30 minutes, after which ...

Embodiment 2

[0143] Preparation of DMC catalyst slurried in NEODOL 1

[0144] At room temperature, 29.3 g of industrial grade zinc chloride (220 mmol of zinc chloride, containing 2.2 mmol of zinc oxide) and 8.8 mmol of zinc oxide were dissolved in 100 g of deionized water. The resulting solution was introduced into a 1 liter glass reactor equipped with a three-pitch blade turbine. Subsequently, 117 g TBA and 95 g deionized water were added.

[0145] A second solution of 12 g of potassium hexacyanocobaltate dissolved in 225 g of deionized water was added to the zinc chloride solution over 30 minutes. The contents of the reactor were stirred well during the addition. After the addition, the reactor contents were then stirred for 30 minutes and then allowed to stand overnight.

[0146] The next day, MTBE (12 wt% based on the reactor contents) was added and the reactor contents were stirred for 5 minutes. The reactor contents were then allowed to stand for 30 minutes, after which the lower...

Embodiment 3

[0154] Preparation of ethoxylated C having an average of 5 ethyleneoxy groups per molecule 11 alcohol

[0155] Into a 5 liter stirred tank reactor was introduced 1667 g of NEODOL 1 (a C 11 primary alcohol composition) and 6.67 g of catalyst slurry in NEODOL 1 formed by the method described in Example 2. Under constant stirring, the reactor tank was flushed 3 times with nitrogen by raising the pressure inside the reactor tank to 5 bara and then releasing the pressure to atmospheric pressure. Under a nitrogen atmosphere, the reactor contents were heated to a temperature of 130°C, and the nitrogen pressure was increased to 2.6 bara.

[0156] 2132 g of ethylene oxide (EO) were introduced into the reactor contents such that a first portion of 10% EO was added and the pressure in the reactor tank did not exceed 4.6 bara. The remaining 90% was then added linearly over 2 hours, during which time the pressure increased due to the compression of the nitrogen curtain inside the reacto...

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Abstract

A process for preparing an alkoxylate composition by the reaction of an active hydrogen containing organic compound with an alkylene oxide using a double metal cyanide complex catalyst.

Description

technical field [0001] The present invention relates to the use of double metal cyanide catalysts for the preparation of alkoxylate compositions. Background technique [0002] Preparation for use as nonionic surfactants, wetting agents and emulsifiers, Wide range of products for solvents and chemical intermediates. For example, particular mention may be made of alkanol ethoxylates and alkyl-substituted phenol ethoxylates prepared by reaction of ethylene oxide with aliphatic alcohols or substituted phenols having 6 to 30 carbon atoms. This ethoxylate, and to a lesser extent the corresponding propoxylate and compounds containing mixed oxyethylene and oxypropylene groups, is widely used as a nonionic detergent in commercial cleaning formulations used in industry and households components. As another example, the addition reaction of propylene oxide with polyols provides an intermediate for the production of polyurethane products. [0003] The following formula shows the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/00C08L71/00B01J27/00B01J27/26C07C41/03C07C43/11C08G65/26
CPCC07C43/11C07C41/03C08G65/2663B01J27/26
Inventor M·B·埃利维尔德J·H·H·缪尔斯K·H·拉内R·J·维尔斯玛A·范佐恩
Owner SHELL INT RES MAATSCHAPPIJ BV
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