Composite additive and preparation method thereof

A compound additive and additive technology, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problems of increased water leaching loss, poor colloidal stability, increased product cost, etc., and achieve performance improvement, low cost, step simple effect

Active Publication Date: 2012-10-03
XINXIANG HENGXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional single additives mainly have the following disadvantages: many varieties, large amount of addition; mutual repulsion, large side effects; single additives containing heavy metal ions have strong polarity, which will lead to poor colloidal stability of lubricating grease products and increased water loss. and other adverse phenomena; the cost of the product increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Put 90 parts by weight of zinc dialkyldithiophosphate into the reaction kettle, mix and heat 10 parts by weight of tetraethylenetriamine to 95°C, saponify for 90 minutes, then add 1 part by weight of tert-octanol, and then saponify for 60 minutes Minutes, cool down to 90°C, then add 5 parts by weight of benzotriazole, 1 part by weight of barium dinonyl naphthalene sulfonate, 3 parts by weight of dodecenylsuccinic acid, 7 parts by weight of chlorobromo Substituted alkyl phosphate flame retardant, stirred until completely dissolved, then cooled, filtered, and refined into compound additives.

Embodiment 2

[0012] Put 80 parts by weight of zinc dialkyldithiophosphate into the reaction kettle, mix and heat 5 parts by weight of tetraethylenetriamine to 90°C, saponify for 60 minutes, then add 0.5 parts by weight of tert-octanol, and then saponify for 60 minutes Minutes, cool down to 80°C, then add 3 parts by weight of benzotriazole, 0.5 parts by weight of barium dinonyl naphthalene sulfonate, 1 part by weight of dodecenylsuccinic acid, 5 parts by weight of chlorobromo Substituted alkyl phosphate flame retardant, stirred until completely dissolved, then cooled, filtered, and refined into compound additives.

Embodiment 3

[0014] Put 99 parts by weight of zinc dialkyldithiophosphate into the reaction kettle, mix and heat 15 parts by weight of tetraethylenetriamine to 120°C, saponify for 120 minutes, then add 1.5 parts by weight of tert-octanol, and then saponify for 120 minutes Minutes, cool down to 100°C, then add 8 parts by weight of benzotriazole, 1.5 parts by weight of barium dinonyl naphthalene sulfonate, 7 parts by weight of dodecenyl succinic acid, 10 parts by weight of chlorobromo Substituted alkyl phosphate flame retardant, stirred until completely dissolved, then cooled, filtered, and refined into compound additives.

[0015] The composite additives prepared in Examples 1-3 have the following superior properties: (1) Improve the high temperature resistance of the product: the dropping point is not less than 280°C (usually the dropping point of the product produced by a single additive is not greater than 250°C); (2) 1. Improve the anti-water performance of the product: the water loss o...

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Abstract

The invention discloses a composite additive and a preparation method thereof. The key points of the technical scheme adopted by the invention are as follows: the composite additive is characterized in that the composite additive is prepared by mixing several single additives with stronger polarities in percentage by weight: 80-99 percent of oxidation and corrosion inhibitor, 5-15 percent of triethylenetetramine, 0.5-1.5 percent of trisubstituted-octyl carbinol, 1-7 percent of antirust completing agent, 3-8 percent of benzotriazole, 0.5-1.5 percent of dinonylnaphthalene sulfonic acid barium and 5-10 percent of flame retardant. The raw materials are refined under certain conditions to form the compound additive. The composite additive can be used for producing lubricating grease. The lubricating grease prepared from the composite additive has more excellent performances of resisting water showering, extreme pressure, high temperature and the like compared with single additive. According to the preparation method, a formula of the raw materials is reasonable, the process is advanced and the cost of products can be reduced; and in addition, the prepared lubricating grease has excellent performances, and thus the produced lubricating grease products have higher sales advantages.

Description

technical field [0001] The invention relates to a composite additive and a preparation method thereof, in particular to a composite additive for producing composite extreme pressure lithium-based lubricating grease and a preparation method thereof. Background technique [0002] In the current process of producing composite extreme-pressure lithium-based grease, various additives are sequentially added to the reaction kettle, and then the additives and other materials are stirred evenly under certain conditions to prepare composite extreme-pressure lithium-based grease. Traditional single additives mainly have the following disadvantages: many varieties, large amount of addition; mutual repulsion, large side effects; single additives containing heavy metal ions have strong polarity, which will lead to poor colloidal stability of lubricating grease products and increased water loss. and other undesirable phenomena; the cost of the product increases. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10M177/00C10N30/06C10N30/08C10N50/10
Inventor 周忠太马超王利霞庞静张守鹏
Owner XINXIANG HENGXING TECH CO LTD
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