Unlock instant, AI-driven research and patent intelligence for your innovation.

Titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil, and preparation method and application thereof

A technology of epoxidized soybean oil and titanium silicalite, which is applied in the direction of catalyst activation/preparation, molecular sieve catalysts, chemical instruments and methods, etc., to achieve the effects of improving conversion rate and yield, good metal dispersion, and improving catalytic activity

Inactive Publication Date: 2019-09-20
JIANGXI AGRICULTURAL UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a titanium silicalite-supported cadmium catalyst for synthesizing epoxy soybean oil, and prepare Method and application

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
  • Titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil, and preparation method and application thereof
  • Titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil, and preparation method and application thereof
  • Titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the synthesis of titanium silicalite TS-1

[0034] The synthesis of titanium silicalite TS-1 is based on tetrapropylammonium hydroxide (TPAOH) as the template, tetraethyl orthosilicate (TEOS) as the silicon source, and butyl titanate (TBOT) as the titanium source. Microporous titanium silicalite TS-1 was synthesized by synthesis.

[0035] In terms of molar parts, 0.3 molar parts of an aqueous solution containing tetrapropylammonium hydroxide (TPAOH) was used as a templating agent in a three-necked round-bottomed flask with a stirrer, and 1 molar part of tetrapropylammonium hydroxide (TEOS ) is added dropwise as the silicon source, fully stirred, and after aging for 0.5h, slowly add a mixed solution containing 0.1 molar parts of tetrabutyl titanate (TBOT, as a titanium source) and 2 molar parts of isopropanol. , continue stirring for 1h. Then carry out alcohol steaming treatment, and then put it into an autoclave for crystallization. Then centrifuge, was...

Embodiment 2

[0036] Embodiment 2: the synthesis of titanium silicalite TS-1

[0037] In terms of molar parts, 0.3 molar parts of an aqueous solution containing tetrapropylammonium hydroxide (TPAOH) was used as a templating agent in a three-necked round-bottomed flask with a stirrer, and 1 molar part of tetrapropylammonium hydroxide (TEOS ) is added dropwise as the silicon source, fully stirred, and after aging for 0.5h, slowly add a mixed solution containing 0.025 molar parts of tetrabutyl titanate (TBOT, as a titanium source) and 2 molar parts of isopropanol. , continue to stir for 2h. Then carry out alcohol steaming treatment, and then put it into an autoclave for crystallization. Then centrifuge, wash until the pH is neutral, dry and grind it into powder, put it into a muffle furnace and roast for 5 hours to get a titanium silicalite TS-1 with a Si / Ti molar ratio of 40.

Embodiment 3

[0038] Embodiment 3: the synthesis of titanium silicalite TS-1

[0039] In terms of molar parts, 0.3 molar parts of an aqueous solution containing tetrapropylammonium hydroxide (TPAOH) was used as a templating agent in a three-necked round-bottomed flask with a stirrer, and 1 molar part of tetrapropylammonium hydroxide (TEOS ) is added dropwise as the silicon source, fully stirred, and after aging for 1 hour, slowly add a mixed solution containing 0.01 molar parts of tetrabutyl titanate (TBOT, as a titanium source) and 2 molar parts of isopropanol. After the dropwise addition, Stirring was continued for 3h. Then carry out alcohol steaming treatment, and then put it into an autoclave for crystallization. Then centrifuge, wash until the pH is neutral, dry and grind it into powder, put it into a muffle furnace and roast it for 6 hours to get the titanium silicalite TS-1 with a Si / Ti molar ratio of 100.

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

PropertyMeasurementUnit
sizeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical fields of energy development and catalytic application, and particularly discloses a titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil, and a preparation method and an application thereof. The titanium silicon zeolite-supported cadmium catalyst for synthesizing epoxidized soybean oil is obtained by loading metallic cadmium on titanium silicon zeolite (TS-1) used as a carrier, and the load capacity of the metallic cadmium (Cd) is 1-8%. The preparation method comprises the following steps: (1) synthesis of the titanium silicon zeolite TS1; and (2) synthesis of the titanium silicon zeolite-supported cadmium catalyst xCd / TS-1. When the titanium silicon zeolite-supported cadmium catalyst is applied to research or production of catalytically synthesized epoxidized soybean oil, the titanium silicon zeolite-supported cadmium catalyst has the advantages of great improvement of the conversion rate and the yield of the epoxidized soybean oil, easiness in recovery, reusability, renewability, no pollution and non-corrosion, and can significantly improve the environmentally unfavorable problems in the industrial production process of the epoxidized soybean oil to achieve high industrial application values.

Description

technical field [0001] The invention belongs to the technical field of energy development and catalytic application, and in particular relates to a titanium silicalite-supported cadmium catalyst for synthesizing epoxidized soybean oil, a preparation method and application. Background technique [0002] Since countries around the world have implemented plastic restriction policies, many non-toxic and environmentally friendly plasticizer technologies have been developed that use cheap animal and vegetable oils and other biomass resources as raw materials. As a plasticizer and stabilizer for PVC materials, epoxidized soybean oil (ESO) is economical and environmentally friendly, and effectively alleviates people's concerns about resources and environmental issues. In addition, in my country, soybean oil (SO), as a representative of high unsaturated vegetable oil, has large output, low cost and wide source, which provides a rich material basis for the industrialization of ESO, an...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/89B01J37/02C11C3/00
CPCB01J29/89B01J37/0201C11C3/006
Inventor 吴国强蔡雷王文君陈超洪艳平蒋艳李亮
Owner JIANGXI AGRICULTURAL UNIVERSITY