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High-temperature lubricating grease for food processing and preparation method thereof

A food processing and lubricating grease technology, applied in the chemical field, can solve problems such as poor mechanical stability, food safety accidents, and decreased adhesion, and achieve the effects of avoiding damage, reducing dosage, and small changes in consistency

Inactive Publication Date: 2016-02-17
JIANGSU LOPALTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the applicant knows, the food-grade greases disclosed in publication numbers CN102268320A, CN1113940A, and CN103789065A all use composite aluminum soap or anhydrous calcium soap as a thickener, and this type of grease will become thinner at high temperatures, and its adhesion will decrease. Oil separation and dripping, the grease is easy to separate from the equipment, which will not only cause poor lubrication and damage to the equipment, but also may contaminate food and cause food safety accidents
Publication number CN104830403A discloses that bentonite can be used as a thickener for high temperature resistant grease, but bentonite grease has the disadvantage of poor mechanical stability

Method used

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  • High-temperature lubricating grease for food processing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the raw materials are prepared as follows for high-temperature lubricating grease for food processing:

[0025] Step 1. Add 48kgPAO40, 32.5kg100# food grade white oil, 5kg polyisobutylene, 1kg p-dioctyl diphenylamine, 9kg organic bentonite Baragel20 in the mixing kettle in turn, turn on the high-speed shear disperser, and set the stirring speed to 500rpm , raise the temperature of the material to 60-70°C, increase the speed of the disperser to 1500rpm, and disperse for 30min;

[0026] Step 2. Slowly add 1kg of 95% pharmaceutical grade ethanol to the kettle, and the adding time is controlled at 10 minutes. After adding, continue high-speed shearing for about 40 minutes to thicken the material. Add 0.5kg AdditinRC3760, 1.0kgAddtinRC4820 and 2kg food-grade PTFE micropowder Continue to stir and mix for 15 minutes;

[0027] Step 3, then use a colloid mill to grind the material 2 times. Import the ground fat into a degassing kettle, keep the temperature ...

Embodiment 2

[0029] In this embodiment, the raw materials are prepared as follows for high-temperature lubricating grease for food processing:

[0030] Step 1. Add 82.5kg PAO40, 2.4kg ethylene propylene copolymer, 0.5kg2,6-di-tert-butyl-4 cresol, 0.5kg phenyl-α-naphthylamine, 10kgBaragel3000 organobentonite to the mixing kettle, and turn on the high-speed For the shear disperser, set the stirring speed to 500rpm, raise the temperature of the material to 60-70°C, increase the speed of the disperser to 1500rpm, and disperse for 20 minutes;

[0031] Step 2. Slowly add 0.5kg of propylene carbonate with a purity of 99.9% pharmaceutical grade to the kettle. The addition time is controlled at 15 minutes. After adding, continue high-speed shearing for about 60 minutes to thicken the material. Add 0.5kg AdditinRC6340, 0.5kgAddtinRC4820 and 3kg carbonic acid Calcium micropowder was stirred and mixed for 15 minutes;

[0032] Step 3: After thickening, use a colloid mill to grind the material twice. ...

Embodiment 3

[0034] In this embodiment, the raw materials are prepared as follows for high-temperature lubricating grease for food processing:

[0035] Step 1. Add 55kgPAO40, 28.1kgPAO10, 5kg polyisobutylene, 0.5kg p-dioctyl diphenylamine, 6kg Bentone34 organic bentonite in the mixing kettle in turn, turn on the high-speed shear disperser, set the stirring speed to 500rpm, and heat the material to 60~70℃, increase the speed of the disperser to 1500rpm, and disperse for 30min;

[0036] Step 2. Slowly add 0.2kg of 95% pharmaceutical grade ethanol and 0.3kg of propylene carbonate to the kettle, and continue high-speed shearing for about 45 minutes to thicken the material; then add 3kg of Degussa R972 silica and stir to thicken After melting for 15 minutes, add 0.3kg AdditinRC6340, 0.5kgAddtinRC4820 and 3kg polytetrafluoroethylene powder and stir and mix for 20 minutes;

[0037] Step 3, then use a colloid mill to grind the material twice. Import the ground fat into a degassing kettle, keep t...

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Abstract

The invention relates to lubricating grease and a preparation method thereof, in particular to high-temperature lubricating grease for food processing and a preparation method thereof, and belongs to the technical field of chemistry. The high-temperature lubricating grease is prepared from base oil accounting for 70%-92% of the total weight of the lubricating grease, an inorganic thickening agent accounting for 3%-20% of the total weight of the lubricating grease, a tackifier accounting for 2%-6% of the total weight of the lubricating grease, an auxiliary dispersant accounting for 0.1%-1.5% of the total weight of the lubricating grease, an antioxidant accounting for 0.3%-1.0% of the total weight of the lubricating grease, a corrosion inhibitor accounting for 0.05%-1% of the total weight of the lubricating grease, a friction modifier accounting for 0.1%-0.5% of the total weight of the lubricating grease and a solid additive accounting for 2%-10% of the total weight of the lubricating grease. The high-temperature lubricating grease has the advantages of being capable of not being fused at high temperature, high in dropping point, few in high-temperature consistence change, good in colloid stability and the like and especially suitable for lubricating and sealing high-temperature food processing equipment.

Description

technical field [0001] The invention relates to a lubricating grease and a preparation method thereof, in particular to a high-temperature lubricating grease for food processing and a preparation method thereof, belonging to the field of chemical technology. Background technique [0002] Lubricants are necessary products for the normal operation of food processing and packaging machinery and equipment. Lubricants will inevitably pollute food during use. In order to reduce the impact of lubricants on food, food processing equipment must use food-grade lubricants during work. Lubricants, US NSF has formulated relevant food lubricant regulations, and products that meet NSFH-1 certification are considered to be true food-grade lubricants. Food-grade grease is a component of food lubricants, used for lubrication and sealing of bearings, gears, chains, slide rails, etc. during food processing. In the process of food processing, high-temperature treatment methods such as baking, s...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10N30/06C10N50/10C10N30/08
Inventor 石俊峰
Owner JIANGSU LOPALTECH
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