Barium sulfonate and barium soap of petroleum ester oxide were dissolved in kerosene or machine oil to prepare oil-soluble corrosion inhibitor.

将石油磺酸钡和氧化石油脂钡皂溶于煤油或机油中制得缓蚀剂。

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However, because of levulinic acid ester is mainly composed of glucose or petroleum-based products into production, less price is high, have been unable to widespread use.

但是，由于乙酰丙酸酯主要由葡萄糖或石油基产物转化生产，量少价高，至今未能广泛使用。

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It is an important aspect in cause of petroleum formation that hydrocarbon from fatty acid or ester decarboxylation catalyzed by minerals at low temperature.

矿物低温催化脂肪酸或酯的脱羧生烃是石油成因机制的一个重要方面。

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