Polyether amine and preparation method and application thereof

A polyetheramine and polyether technology, which is applied in the field of polyetheramine of fuel detergent and its preparation, can solve the problems such as no polyetheramine, and achieve the advantages of inhibiting the formation of deposits, reducing by-products and low production cost. Effect

Pending Publication Date: 2021-09-17
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The currently disclosed patents are mainly single-molecule end-capping, but there is no report on the synthesis of long-chai

Method used

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  • Polyether amine and preparation method and application thereof
  • Polyether amine and preparation method and application thereof
  • Polyether amine and preparation method and application thereof

Examples

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Example Embodiment

[0049] According to a first aspect of the present invention, the present invention provides a method for preparing a polyetheramine comprising the steps of:

[0050] The catalyst SO 4 -2 / ZrO 2 Was added to the polyether, epichlorohydrin was added after the epoxidation reaction, to obtain a reaction solution;

[0051] The reaction solution was separated and recovered catalyst SO 4 -2 / ZrO 2 And epichlorohydrin to give chlorohydrin intermediate product;

[0052] The solid base was added to the chlorohydrin intermediate product to ring closure reaction, to give a crude epoxy-terminated polyethers;

[0053] After filtering the crude polyether epoxy group, neutralizing agent was added to the filtrate and then adsorbent is added to obtain a purified epoxy-terminated polyethers; and

[0054] The purified epoxy-terminated polyether and an organic amine and / or an inorganic ammonium amination reaction to obtain polyether amines.

[0055] First, the present invention is a polyether as...

Example Embodiment

[0077] Example 1 Solid super-acid catalyst SO 4 -2 / Zro 2 Preparation

[0078] Zrocl 2 · 8h 2 O 15 g (accurate to 0.0001 g) was dissolved in distilled water, and a saturated zirconium salt-aqueous solution was made.

[0079] Under the rapid stirring, the dripping volume fraction was 10% to 15% of the dranon ammonia regulated solutions pH to 9 to 10, and the deposition of 24 h, filtered, washed with deionized water to 0.1 mol / L of AGNO. 3 The solution was not examined without chloride ion.

[0080] Dry filter cake 12h grinding, sieve (1.05 ~ 1.5) × 10 5 NM powder, soaked with a sulfuric acid solution, filtrate the remaining solution, dry the powder, placed in a muffle furnace for 3 h, resulting in a solid super acid catalyst SO 4 -2 / Zro 2 .

Example Embodiment

[0081] Example 2 Preparation of Polyethermine

[0082] 1) epoxidation of the polyether.

[0083] 500 g of nonylphenol polyoxypropionylene ether and 2.5 g so 4 -2 / Zro 2 The catalyst was added to 1000 ml of four flasks and stirred under nitrogen gas, and then dripped to add epoxyoxropane 55.5 g, 1H was added dropwise, and the temperature was allowed to 60 ° C, and the temperature reaction was maintained 2.5 h.

[0084] After completion of the reaction, it was lowered to room temperature, and the catalyst was separated, and the epoxy chloropropane was recovered to the epoxy chloride. Under nitrogen protection, 24 g of sodium hydroxide particles were added to the middle product, and the temperature was raised to 40 ° C for 3 h, cooling to room temperature to obtain a coarse endocyclic oxygen polyether.

[0085] After filtrate the crude epoxy-based polyester, the filtrate was collected, and the neutral acid neutralization was added thereto, and then the acidic white soil was added t...

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Abstract

The invention provides polyether amine as well as a preparation method and application thereof. The preparation method comprises the following steps: adding a catalyst SO4-2/ZrO2 into polyether, and then adding epoxy chloropropane for epoxidation reaction to obtain a reaction solution; separating the reaction liquid, and recovering the catalyst SO4-2/ZrO2 and epoxy chloropropane to obtain a chlorohydrin intermediate product; adding solid alkali into the chlorohydrin intermediate product for ring-closure reaction to obtain crude epoxy-terminated polyether; filtering the crude epoxy polyether, adding a neutralizer into the filtrate for neutralization, and then adding an adsorbent to obtain refined epoxy-terminated polyether; and carrying out amination reaction on the refined epoxy-terminated polyether and organic amine and/or inorganic ammonium to obtain polyether amine. According to the invention, the SO4-2/ZrO2 is adopted as the catalyst for the ring-opening reaction, and the catalyst has the advantages of high selectivity, few byproducts, no corrosion to equipment, easiness in separation after the reaction is finished, and very good industrial application value; meanwhile, amination of the epoxy-terminated polyether has the advantages of high reaction speed and low production cost.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a polyetheramine used as a fuel detergent and its preparation method and application. Background technique [0002] The content of unsaturated hydrocarbons and sulfur and nitrogen compounds in my country's motor gasoline is relatively high, which is easily oxidized to form colloids during storage and use, resulting in gasoline being easily trapped in nozzles, intake valves and combustion chambers during combustion. The formation of carbon deposits will cause problems such as poor fuel supply to the engine, incomplete combustion, reduced maneuverability, increased fuel consumption, and discharge a large amount of harmful exhaust gas. In recent years, with the continuous growth of domestic car ownership, the air pollution caused by vehicle exhaust pollutants has become more and more serious, and it is urgent to eliminate the environmental problems caused by it. Research at hom...

Claims

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Application Information

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IPC IPC(8): C08G65/338C08G65/333C08G65/325C10L1/2387C10L10/04
CPCC08G65/338C08G65/33306C08G65/325C08G65/33396C10L1/2387C10L10/04
Inventor 张瑞军张建荣黄作鑫
Owner CHINA PETROLEUM & CHEM CORP
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