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Biodegradable lubricating grease and preparation method thereof

A technology of biodegradation and lubricating grease, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of complicated pretreatment process of waste oil and increased cost, and achieve the effects of low cost, energy saving and easy biodegradation

Active Publication Date: 2021-08-03
BIOLAND ENVIRONMENTAL TECH GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention needs to carry out pickling, water washing, alkali washing, decolorization, in addition to waste oil and fat also need to add a large proportion of 12-hydroxy stearic acid in saponification step, this invention not only the pretreatment process of waste oil is complicated, but also needs many The base oil is added for the first time, and additional raw materials also increase the cost

Method used

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  • Biodegradable lubricating grease and preparation method thereof

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Effect test

Embodiment 1

[0023] Embodiment 1, a kind of biodegradable lubricating grease, the biodegradable lubricating grease is made up of the following components: refined kitchen waste oil 90g, 20%wt LiOH aqueous solution 5.45g, methyl palmitate 1.8g, thiadiazole derivative Material 2g, biodegradable antioxidant 0.3g.

[0024] This embodiment one provides a kind of preparation method of biodegradable lubricating grease, such as figure 1 shown, including the following steps:

[0025] S1) Obtain kitchen waste oil, remove solid impurities in the kitchen waste oil with a filter element with a pore size of 5-10 μm, obtain filtered kitchen waste oil, and pour the filtered kitchen waste oil into the filtered kitchen waste oil Add pure water at an oil-water mass ratio of 1:4, stir and heat up to 90°C, keep warm for 1 hour and then let stand for 1 hour, take the supernatant to obtain refined kitchen waste oil;

[0026] S2) heating up the refined kitchen waste oil to 110°C, adding 20%wt LiOH aqueous solut...

Embodiment 2

[0030] Embodiment 2, a kind of biodegradable lubricating grease, biodegradable lubricating grease is made up of the following components: Refined kitchen waste oil 82g, 20%wt LiOH aqueous solution 7.29g, methyl palmitate 1.5g, thiadiazole derivative Material 3g, biodegradable antioxidant 0.5g.

[0031] The second embodiment provides a method for preparing biodegradable grease, comprising the following steps:

[0032] S1) Obtain kitchen waste oil, remove solid impurities in the kitchen waste oil with a filter element with a pore size of 5-10 μm, obtain filtered kitchen waste oil, and pour the filtered kitchen waste oil into the filtered kitchen waste oil Add pure water at an oil-water mass ratio of 1:6, stir and heat up to 90°C, keep warm for 1 hour and then let stand for 1 hour, take the supernatant to obtain refined kitchen waste oil;

[0033] S2) heating up the refined kitchen waste oil to 110°C, adding 20%wt LiOH aqueous solution to the refined kitchen waste oil heated to ...

Embodiment 3

[0037]Embodiment 3, a biodegradable lubricating grease, the biodegradable lubricating grease is composed of the following components: 118g of refined kitchen waste oil, 13.34g of 20%wt LiOH aqueous solution, 2g of methyl palmitate, and thiadiazole derivatives 4g, 0.3g of biodegradable antioxidant.

[0038] Present embodiment three provides a kind of preparation method of biodegradable lubricating grease, comprises the following steps:

[0039] S1) Obtain kitchen waste oil, remove solid impurities in the kitchen waste oil with a filter element with a pore size of 5-10 μm, obtain filtered kitchen waste oil, and pour the filtered kitchen waste oil into the filtered kitchen waste oil Add pure water at an oil-water mass ratio of 1:5, stir and heat up to 90°C, keep warm for 1 hour, then let stand for 1 hour, take the supernatant to obtain refined kitchen waste oil;

[0040] S2) heating up the refined kitchen waste oil to 110°C, adding 20%wt LiOH aqueous solution to the refined kitc...

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Abstract

The invention relates to the field of lubricating grease preparation, and discloses biodegradable lubricating grease and a preparation method thereof. The biodegradable lubricating grease comprises the following components by weight: 80-120 parts of refined kitchen waste grease, 3.23-13.57 parts of a 20% wt LiOH aqueous solution, 1.5-2 parts of methyl palmitate, 1-4 parts of a thiadiazole derivative, and 0.3-0.5 parts of a biodegradable antioxidant. According to the method, the biodegradable lubricating grease is prepared from the waste kitchen grease, the utilization ways of the waste kitchen grease can be increased, one-step feeding can be realized in the production process, so that the technological process is reduced, the energy consumption is reduced, the product performance is relatively high, and the biodegradable lubricating grease can be completely degraded by microorganisms. Meanwhile, the biodegradable lubricating grease can also avoid environmental pollution caused by mineral oil-based lubricating grease, and resource utilization of wastes and reduction of environmental pollution are synchronously realized.

Description

technical field [0001] The invention relates to the field of lubricating grease preparation, in particular to a biodegradable lubricating grease and a preparation method. Background technique [0002] Kitchen waste oil mainly comes from kitchen waste, frying waste oil, etc. Compared with edible and industrial vegetable oil, kitchen waste oil is mixed with various condiments and then fried, steamed, etc., and some triglycerides Hydrolyzed, the main component is a mixture of fatty acid triglycerides and 1% to 10% fatty acid. The way of its utilization is mainly to prepare biodiesel, lubricating oil, ore dressing reagents, etc., and it can also be used as a basic chemical raw material to produce mixed fatty acids, fatty acid sodium and other products. There are few existing technologies for preparing biodegradable grease by using kitchen waste oil. [0003] Grease is used in the friction parts of machinery to lubricate and seal, and also on metal surfaces to fill gaps and pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N50/10
CPCC10M169/00C10M2207/401C10M2207/1265C10M2207/281C10M2219/106C10M2207/144Y02W30/74
Inventor 施军营刘明龙李杰何清玉
Owner BIOLAND ENVIRONMENTAL TECH GRP CORP