CN106479623A - 以植物基合成油为基础的润滑油的制备方法 - Google Patents
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Abstract
本发明公开了一种以植物基合成油为基础的润滑油的制备方法:步骤1)将蓖麻油与水混合,在45~55rps的转速下搅拌,并加热,温度80~90℃,加入三乙醇胺,持续搅拌40~45min;步骤2)加入硼酸,维持温度在80℃~90℃之间;步骤3)当pH值为7.5~8.5时,加入油酸三乙醇胺,在45~55rps的转速下搅拌5~10min,得到植物基合成油;步骤4)将上述所得植物基合成油加热至40~45℃后加入防腐剂、杀菌剂、消泡剂和水,在35~40rps的转速下搅拌10~20min;步骤5)最后加入粘度调节剂,在30~35rps的转速下搅拌20~30min,即得到。有益效果:采用本发明所提供的方法所制备的润滑油的最大无卡咬负荷得到了很大的提高,具有较好的润滑性能及稳定性,此外,还可以进行生物降解,有利于环保。
Description
技术领域
本发明属于精细化工生产技术领域,具体涉及一种以植物基合成油为基础的润滑油的制备方法。
背景技术
润滑油基础油主要分矿物基础油、合成基础油以及生物基础油三大类。矿物基础油应用广泛,用量很大(约95%以上),但有些应用场合则必须使用合成基础油和生物油基础油调配的产品,因而使这两种基础油得到迅速发展。
我国市场最流行润滑油油品大多是以石油为基础油的润滑油,它们难以降解,几乎长期留在环境中。每年全球消耗润滑油为3600~4000万吨,其中1000万吨左右的润滑油由于泄漏、飞溅、油气蒸发、包装用品的残留、不当地抛弃等原因直接进入人类居住的生态环境,严重污染土壤和水资源,破坏生态环境。20世纪70年代末,欧洲市场就出现了生物降解型润滑油,我国政府对润滑油的污染问题也很关注。但到目前为止,绝大多数使用的润滑油,还是石油为基础油的润滑油。
植物油基的润滑油是一种环境友好的润滑油,如豆油、玉米油、菜籽油、棉籽油、蓖麻油等,其中最早进入市场的是德国用菜籽油(含油量35~40)合成的润滑油。但菜籽油凝点较高,低温时容易凝固,酯化后低温性能不理想。菜籽油的氧化稳定性较差,在高温时容易形成油泥和沉淀物。因此,能否以植物油为基础制备出合适的润滑油,是值得研究的课题。
发明内容
发明目的:针对现有技术中的不足,本发明提供了一种以植物基合成油为基础的润滑油的制备方法。
技术方案:本发明所说的以植物基合成油为基础的润滑油的制备方法,包括如下步骤:(本发明中所提及的份数均为质量份数)
步骤1)将蓖麻油与水混合,在45~55rps的转速下搅拌,并加热,温度80~90℃,加入三乙醇胺,持续搅拌40~45min;
步骤2)加入硼酸,维持温度在80℃~90℃之间;
步骤3)当pH值为7.5~8.5时,加入油酸三乙醇胺,在45~55rps的转速下搅拌5~10min,得到植物基合成油;
步骤4)将上述所得植物基合成油加热至40~45℃后加入防腐剂、杀菌剂、消泡剂和水,在35~40rps的转速下搅拌10~20min;
步骤5)最后加入粘度调节剂,在30~35rps的转速下搅拌20~30min,即得到。
上述步骤1)至步骤3)中,原料配比为:蓖麻油20~30份、水30~40份、三乙醇胺5~10份、硼酸3~5份、油酸三乙醇胺10~12份。
上述步骤4)至步骤5)中,原料的配比为植物基合成油12~18份、粘度调节剂2~6份、防腐剂2~5份、杀菌剂2~5份、消泡剂2~5份和水50~60份。
所述的油酸三乙醇胺通过如下方法得到:将油酸和三乙醇胺混合,在45~55rps的转速下搅拌,当温度达到115~120℃时,停止加热,恒温保持30~35min,降至室温,得到油酸三乙醇胺。所述油酸与三乙醇胺的摩尔比为1:0.8~1.2。
所述的粘度调节剂为亚乙基双硬脂酸酰胺。所述的消泡剂为聚氧乙烯聚氧丙烯季戊四醇醚。所述的防腐剂为山梨酸钾。所述的杀菌剂为异噻唑啉酮。
有益效果:采用本发明所提供的方法所制备的润滑油的最大无卡咬负荷得到了很大的提高,具有较好的润滑性能及稳定性,此外,还可以进行生物降解,有利于环保。
具体实施方式:
实施例1
制备油酸三乙醇胺:
将10份油酸和10份三乙醇胺混合,在55rps的转速下搅拌,当温度达到120℃时,停止加热,恒温保持35min,降至室温,得到油酸三乙醇胺。
制备润滑油:
步骤1)将30份蓖麻油与40份水混合,在55rps的转速下搅拌,并加热,温度90℃,加入5份三乙醇胺,持续搅拌45min;
步骤2)加入5份硼酸,维持温度在90℃之间;
步骤3)当pH值为8时,加入12份油酸三乙醇胺,在55rps的转速下搅拌10min,得到植物基合成油;
步骤4)取步骤3)所得植物基合成油18份加热至45℃后加入防腐剂2份、杀菌剂2份、消泡剂5份和水60份,在40rps的转速下搅拌20min;
步骤5)最后加入粘度调节剂6份,在35rps的转速下搅拌30min,即得到。
实施例2
制备油酸三乙醇胺:
将10份油酸和8份三乙醇胺混合,在45rps的转速下搅拌,当温度达到115℃时,停止加热,恒温保持30min,降至室温,得到油酸三乙醇胺。
制备润滑油:
步骤1)将20份蓖麻油与30份水混合,在45rps的转速下搅拌,并加热,温度80℃,加入5份三乙醇胺,持续搅拌40min;
步骤2)加入3份硼酸,维持温度在80℃之间;
步骤3)当pH值为7.5时,加入10份油酸三乙醇胺,在45rps的转速下搅拌5min,得到植物基合成油;
步骤4)取步骤3)所得植物基合成油12份加热至40℃后加入防腐剂2份、杀菌剂2份、消泡剂2份和水50份,在35rps的转速下搅拌10min;
步骤5)最后加入粘度调节剂2份,在30rps的转速下搅拌20min,即得到。
实施例3
制备油酸三乙醇胺:
将10份油酸和8份三乙醇胺混合,在45rps的转速下搅拌,当温度达到115℃时,停止加热,恒温保持30min,降至室温,得到油酸三乙醇胺。
制备润滑油:
步骤1)将30份蓖麻油与40份水混合,在55rps的转速下搅拌,并加热,温度90℃,加入10份三乙醇胺,持续搅拌45min;
步骤2)加入5份硼酸,维持温度在90℃之间;
步骤3)当pH值为8.5时,加入12份油酸三乙醇胺,在55rps的转速下搅拌10min,得到植物基合成油;
步骤4)取步骤3)所得植物基合成油18份加热至45℃后加入防腐剂~5份、杀菌剂5份、消泡剂5份和水60份,在40rps的转速下搅拌20min;
步骤5)最后加入粘度调节剂6份,在35rps的转速下搅拌30min,即得到。
实施例4
制备油酸三乙醇胺:
将10份油酸和12份三乙醇胺混合,在55rps的转速下搅拌,当温度达到120℃时,停止加热,恒温保持35min,降至室温,得到油酸三乙醇胺。
制备润滑油:
步骤1)将30份蓖麻油与40份水混合,在55rps的转速下搅拌,并加热,温度90℃,加入10份三乙醇胺,持续搅拌45min;
步骤2)加入5份硼酸,维持温度在90℃之间;
步骤3)当pH值为8.5时,加入12份油酸三乙醇胺,在55rps的转速下搅拌10min,得到植物基合成油;
步骤4)取步骤3)所得植物基合成油18份加热至45℃后加入防腐剂~5份、杀菌剂5份、消泡剂5份和水60份,在40rps的转速下搅拌20min;
步骤5)最后加入粘度调节剂6份,在35rps的转速下搅拌30min,即得到。
实施例5
制备油酸三乙醇胺:
将10份油酸和12份三乙醇胺混合,在55rps的转速下搅拌,当温度达到120℃时,停止加热,恒温保持35min,降至室温,得到油酸三乙醇胺。
制备润滑油:
步骤1)将20份蓖麻油与30份水混合,在45rps的转速下搅拌,并加热,温度80℃,加入5份三乙醇胺,持续搅拌40min;
步骤2)加入3份硼酸,维持温度在80℃之间;
步骤3)当pH值为7.5时,加入10份油酸三乙醇胺,在45rps的转速下搅拌5min,得到植物基合成油;
步骤4)取步骤3)所得植物基合成油12份加热至40℃后加入防腐剂2份、杀菌剂2份、消泡剂2份和水50份,在35rps的转速下搅拌10min;
步骤5)最后加入粘度调节剂2份,在30rps的转速下搅拌20min,即得到。
将实施例1~实施例5所制得的润滑油,进行最大无卡咬负荷(PB值)测试,测试方法采用BG/T3142,所得结果如下表所示:
实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | |
PB值/kgf | 71 | 63 | 62 | 65 | 60 |
PB值反应了润滑油的承载能力和润滑极压性能,由表中结果可见,实施例1所得的润滑油性能最佳。
Claims (9)
1.一种以植物基合成油为基础的润滑油的制备方法,其特征在于包括如下步骤:
步骤1)将蓖麻油与水混合,在45~55rps的转速下搅拌,并加热,温度80~90℃,加入三乙醇胺,持续搅拌40~45min;
步骤2)加入硼酸,维持温度在80℃~90℃之间;
步骤3)当pH值为7.5~8.5时,加入油酸三乙醇胺,在45~55rps的转速下搅拌5~10min,得到植物基合成油;
步骤4)将上述所得植物基合成油加热至40~45℃后加入防腐剂、杀菌剂、消泡剂和水,在35~40rps的转速下搅拌10~20min;
步骤5)最后加入粘度调节剂,在30~35rps的转速下搅拌20~30min,即得到。
2.如权利要求1所述的润滑油的制备方法,其特征在于步骤1)至步骤3)中,原料配比为:蓖麻油20~30份、水30~40份、三乙醇胺5~10份、硼酸3~5份、油酸三乙醇胺10~12份。
3.如权利要求1所述的润滑油的制备方法,其特征在于步骤4)至步骤5)中,原料的配比为植物基合成油12~18份、粘度调节剂2~6份、防腐剂2~5份、杀菌剂2~5份、消泡剂2~5份和水50~60份。
4.如权利要求1所述的润滑油的制备方法,其特征在于所述的油酸三乙醇胺通过如下方法得到:将油酸和三乙醇胺混合,在45~55rps的转速下搅拌,当温度达到115~120℃时,停止加热,恒温保持30~35min,降至室温,得到油酸三乙醇胺。
5.如权利要求4所述的润滑油的制备方法,其特征在于所述油酸与三乙醇胺的摩尔比为1:0.8~1.2。
6.如权利要求1所述的润滑油的制备方法,其特征在于所述的粘度调节剂为亚乙基双硬脂酸酰胺。
7.如权利要求1所述的润滑油的制备方法,其特征在于所述的消泡剂为聚氧乙烯聚氧丙烯季戊四醇醚。
8.如权利要求1所述的润滑油的制备方法,其特征在于所述的防腐剂为山梨酸钾。
9.如权利要求1所述的润滑油的制备方法,其特征在于所述的杀菌剂为异噻唑啉酮。
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