Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF9 Cites 2 Cited by
  • Summary
  • 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-chain and large-molecular-weight epoxy-terminated polyethers or the amination of epoxy-terminated polyethers to prepare polyetheramines.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] According to the first aspect of the present invention, the present invention provides a kind of preparation method of polyether amine, comprises the following steps:

[0050] Catalyst SO 4 -2 / ZrO 2 Adding it to polyether, and then adding epichlorohydrin to carry out epoxidation reaction to obtain a reaction solution;

[0051] Separation of the reaction liquid and recovery of catalyst SO 4 -2 / ZrO 2 And epichlorohydrin, obtains chlorohydrin intermediate product;

[0052] Adding a solid base to the chlorohydrin intermediate product to carry out a ring closure reaction to obtain a crude epoxy-terminated polyether;

[0053] After filtering the crude epoxy-based polyether, adding a neutralizing agent to the filtrate for neutralization, and then adding an adsorbent to obtain a refined epoxy-group-terminated polyether; and

[0054] Amination reaction of refined epoxy-terminated polyether with organic amine and / or inorganic ammonium to obtain polyether amine.

[0055]...

Embodiment 1

[0077] Embodiment 1 solid superacid catalyst SO 4 -2 / ZrO 2 preparation of

[0078] Weigh ZrOCl 2 ·8H 2 O 15g (accurate to 0.0001g) was dissolved in distilled water to make a saturated zirconium salt-water solution.

[0079] Under rapid stirring, dilute ammonia water with a volume fraction of 10% to 15% was added dropwise to adjust the pH of the solution to 9 to 10, left to age for 24 hours, filtered with suction, and washed with deionized water until the filtrate was washed with 0.1mol / L AgNO 3 The solution does not detect chloride ions.

[0080] Dry the filter cake for 12 hours, grind and sieve (1.05~1.5)×10 5 nm powder, soaked in sulfuric acid solution, filtered off the remaining solution, dried the powder, and baked in a muffle furnace for 3 hours to obtain a solid superacid catalyst SO 4 -2 / ZrO 2 .

Embodiment 2

[0081] The preparation of embodiment 2 polyetheramine

[0082] 1) Epoxidation of polyether.

[0083] 500g nonylphenol polyoxypropylene ether and 2.5g SO 4 -2 / ZrO 2 Add the catalyst into a 1000ml four-neck flask, start stirring under the protection of nitrogen, start to add 55.5g of epichlorohydrin dropwise after 10min, and complete the dropwise addition within 1h, raise the temperature to 60°C, and maintain this temperature for 2.5h.

[0084] After the reaction, the temperature was lowered to room temperature, the catalyst was separated by filtration, and epichlorohydrin was recovered by distillation under reduced pressure to obtain an intermediate product. Under nitrogen protection, 24 g of sodium hydroxide particles were added to the intermediate product, the temperature was raised to 40° C. for 3 hours, and the temperature was lowered to room temperature to obtain a crude epoxy-terminated polyether.

[0085] Collect the filtrate after filtering the crude epoxy-terminat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com