Multi-branched polyether amine, preparation method and applications thereof

A polyetheramine chemical and reaction technology, applied in the field of multi-branched polyetheramine and its preparation, can solve the problems of cumbersome polyetheramine reaction steps, low yield of synthetic products, harsh process conditions, etc., and achieve good clay hydration. Dispersion performance, good inhibition performance, simple process effect

Active Publication Date: 2017-02-22
CHINA PETROCHEMICAL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main methods for preparing polyetheramines in the prior art include polyether catalytic reductive hydrogenation amination method, polyether nitrile catalytic hydrogenation method and leaving group method, wherein polyether catalytic reduction hydrogenation amination method and polyether nitrile The catalytic hydrogenation method requires high temperature and high pressure in the process of preparing polyetheramine, catalytic hydrogenation, and reductive amination. The process conditions are harsh, there are many reaction steps, and the post-treatment is complicated; while the reaction steps for the preparation of polyetheramine by the leaving group method are cumbersome , the yield of synthetic product is low
The preparation method of polyetheramine provided by the prior art is not only complicated in process and inconvenient to operate, but also the inhibitory performance and clay hydration dispersibility of the prepared polyetheramine need to be improved, so as to better meet the use requirements of drilling fluid

Method used

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  • Multi-branched polyether amine, preparation method and applications thereof
  • Multi-branched polyether amine, preparation method and applications thereof
  • Multi-branched polyether amine, preparation method and applications thereof

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preparation example Construction

[0029] The present invention provides a kind of preparation method of hyperbranched polyether amine described in above-mentioned technical scheme, comprising:

[0030] reacting glycerol, glycol compounds, water and an acidic catalyst to obtain an intermediate product, the glycol compounds including ethylene glycol or polyethylene glycol;

[0031] React the intermediate product with chlorinated epoxides, basic compounds, and organic amines to obtain hyperbranched polyetheramines; the chlorinated epoxides include epichlorohydrin or 1,2-epoxychlorohydrin Butane, the organic amines include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine or pentaethylenehexamine.

[0032] In an embodiment of the present invention, the reaction temperature of the glycerin, glycol compounds, water and acidic catalyst is 90°C to 140°C; in other embodiments, the glycerol, glycol compounds , The reaction temperature of water and acidic catalyst is 100℃~120℃. In an emb...

Embodiment 1

[0066] Add 10g of glycerol, 8g of ethylene glycol, 30g of water, and 0.8g of hydrochloric acid into a four-necked flask with a stirring and condensing reflux device, and react at a temperature of 90°C for 2.0h to obtain an intermediate product;

[0067] Add 5g of epichlorohydrin, 0.8g of sodium hydroxide, and 10g of ethylenediamine to the above intermediate product, react at a temperature of 40°C for 0.5h, dry the obtained reaction product to remove water, and obtain a hyperbranched polyether Amine, yield 92.18%.

[0068] The hyperbranched polyetheramine prepared in Example 1 of the present invention has a structure shown in Formula 1:

[0069]

[0070] In Formula 1, m is 1, n is 1, and o is 0.

[0071] According to the method described in the above technical scheme, the primary recovery rate of shale, the relative recovery rate of shale, the relative inhibition rate of clay and the extreme Pressure lubrication coefficient; the test results are shown in Table 1, and Table...

Embodiment 2

[0073] Add 10g of glycerol, 9g of polyethylene glycol with a number average molecular weight of 400, 35g of water, and 0.9g of sulfuric acid into a four-necked flask with a stirring and condensing reflux device, and react at a temperature of 100°C for 3.0h , to get the intermediate product;

[0074] Add 6g of 1,2-epoxychlorobutane, 0.9g of potassium hydroxide, and 11g of diethylenetriamine to the above intermediate product, react at a temperature of 45°C for 1.0h, and dry the obtained reaction product to remove water. A hyperbranched polyetheramine was obtained with a yield of 92.43%.

[0075] The hyperbranched polyetheramine prepared in Example 2 of the present invention has a structure shown in Formula 2:

[0076]

[0077] In Formula 2, m is 9-10, n is 2, and o is 1.

[0078] According to the method described in the above technical scheme, the primary recovery rate of shale, the relative recovery rate of shale, the relative inhibition rate of clay and the extreme The p...

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Abstract

The present invention provides a multi-branched polyether amine, which has a structure represented by a formula I, wherein m is 1-16, n is 1-2, and o is 0-4. The present invention provides a preparation method of the multi-branched polyether amine, wherein the preparation method comprises: carrying out a reaction on glycerol, a diol compound, water and an acidic catalyst to obtain an intermediate product; and carrying out a reaction on the intermediate product and a chlorinated epoxide, an alkali compound and an organic amine to obtain the multi-branched polyether amine. According to the present invention, the multi-branched polyether amine has characteristics of good shale inhibition property, good clay hydration dispersibility, good lubricity and no biotoxicity, can be used for drilling fluids, and is suitable for drilling construction of the strong-water-sensitivity mud shales, the mud-containing rocks and other easily-collapsing stratums having high requirements, and the shale gas horizontal wells. The formula I is defined in the specification.

Description

technical field [0001] The invention relates to the technical field of polyetheramines, in particular to a hyperbranched polyetheramine and its preparation method and application. Background technique [0002] Polyetheramine is a kind of polymer whose main chain is polyether structure and the terminal active functional group is amine group. Polyetheramine has been widely used in many fields such as polyurea spraying, large-scale composite material preparation and epoxy resin curing agent. In recent years, Recently, polyetheramine has been applied in drilling fluids, showing good inhibitory performance and environmental protection performance, and the unique molecular structure of polyetheramine can be well embedded in the clay layer, so that the clay layer is closely combined, So as to effectively inhibit the dispersion of clay and cuttings; polyetheramine has a long-lasting inhibitory effect, which is beneficial to wellbore stability and reservoir protection. It can be used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C07C217/28C07C213/04C09K8/035C09K8/24
Inventor 司西强王中华魏军吕跃滨
Owner CHINA PETROCHEMICAL CORP
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