| abstract |
a) a blend of dialkyl methyl glutarate and a dibasic acid ester comprising at least one of dialkyl adipate or dialkyl ethyl succinate; b) at least one terpene; c) at least one surfactant. A heavy oil cleaning composition comprising: Similarly, in order to obtain a mixture for washing heavy oil, a) a step of obtaining a terpene solvent; b) a terpene solvent that is a carrier liquid (i) a dialkyl methyl glutarate, a dialkyl adipate, a dialkyl ethyl A blend of dibasic acid esters selected from the group consisting of nates, dialkyl succinates, dialkyl glutarates and any combination thereof; ii) from the group consisting of terpene alkoxylates, alcohol alkoxylates and any combination thereof A method of delivering a low concentration of solvent comprising: at least one selected surfactant; and iii) water, including a microemulsion). [Selection figure] None |