Method for preparing sulfurized fatty acid from kitchen waste oil

A technology of sulfurized fatty acid and waste oil, which is applied in the fields of fatty acid production, fat oil/fat refining, fatty acid preparation/refining, etc.

Active Publication Date: 2021-04-20
正大国际科技(常德)集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few studies on the separation and purification of fatty acids from kitchen waste oil using ionic liquids as catalytic systems

Method used

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  • Method for preparing sulfurized fatty acid from kitchen waste oil
  • Method for preparing sulfurized fatty acid from kitchen waste oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Step 1: Preparation of airgel nanoparticles A: 10 grams of cellulose nanofibers (1.56% by mass fraction) were mixed with deionized water, and ultrasonically treated for 8 minutes to obtain a nanoparticle dispersion. Triethoxysilane (KH-550) was added to KH-550 at a mass ratio of 1:1 to obtain a mixed solution. Stir the mixed solution at a speed of 650r / min for 2 hours at room temperature, freeze in liquid nitrogen for 40 minutes, and vacuum freeze-dry After 28 hours, put it into an oven and dry at 100° C. for 30 minutes to obtain KH-550 modified cellulose airgel nanoparticles.

[0093] Step 2: Preparation of airgel nanoparticles B: Mix 2 grams of cellulose nanofibers with deionized water, ultrasonically treat for 10 minutes to obtain a dispersion, add ethylenediaminetetraacetic acid (EDTA) aqueous solution, and stir at room temperature for 36 hours. Filtrate with suction, wash with ultrapure water several times, and dry at 90°C for 30 minutes to obtain EDTA-modified cel...

Embodiment 2

[0096] Except that the mass parts of KH-550 modified cellulose nanoparticles as airgel nanoparticles A in step 3 of Example 1 were replaced by 2 parts and EDTA modified cellulose as airgel nanoparticles B Except that the mass parts of the airgel nanoparticles were changed to 1.5 parts, the contents of other components and operating conditions were the same as those in Example 1.

Embodiment 3

[0098] Except that the mass parts of KH-550 modified cellulose nanoparticles as airgel nanoparticles A in step 3 of Example 1 were changed to 10 parts and EDTA modified cellulose as airgel nanoparticles B Except that the mass parts of the airgel nanoparticles were changed to 5 parts, the contents of other components and operating conditions were the same as in Example 1.

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PUM

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Abstract

The invention discloses a method for preparing sulfurized fatty acid by using kitchen waste oil, which comprises the following steps: purifying the kitchen waste oil, carrying out catalytic hydrolysis, separating, distilling and vulcanizing, wherein a compound ionic liquid catalyst is used in the catalytic hydrolysis step, the mass part ratio of the catalyst to the kitchen waste oil is 1: (30-50), and in the vulcanizing step, sulfur powder is adopted to vulcanize fatty acid.

Description

technical field [0001] The invention belongs to the technical field of fatty acid preparation, and in particular relates to a method for preparing sulfurized fatty acid from kitchen waste oil and an application of the prepared sulfurized fatty acid in preparing lubricating oil. Background technique [0002] Kitchen waste oil is a general term for all kinds of low-quality oils that exist in daily life. It generally includes greasy floating objects in sewers, waste oil discharged from hotels and restaurants, and leftover oil after repeated frying of food. Every year, there are tens of millions of tons of waste kitchen oil in the kitchen waste, and its direct discharge not only causes a direct waste of resources but also has a huge impact on people's living environment. Therefore, how to fully excavate and utilize the abundant kitchen waste oil resources to turn waste into wealth is an urgent problem to be solved. [0003] At present, people have carried out research on the re...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/10C11C1/04C11C1/10C10M135/06C10M169/04C10M159/02C10N30/06C10N30/10C10N30/12
CPCY02W30/74
Inventor 何新桥
Owner 正大国际科技(常德)集团有限公司
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