SOLVENT COMPOSITIONS WITH ANTIOXIDANTS

    公开(公告)号:US20230109972A1

    公开(公告)日:2023-04-13

    申请号:US17760370

    申请日:2021-03-01

    Abstract: The present invention relates to solvent compositions and processes for inhibiting the generation of peroxide in glycol ether solvents. In one aspect, a solvent composition comprises at least one glycol ether, at least one antioxidant containing a hindered phenol, wherein the concentration of the antioxidant in the solvent composition is less than or equal to 1,000 ppm by weight, and a peroxide, wherein the concentration of the peroxide in the solvent composition is less than 20 ppm, and wherein the APHA color index of the solvent composition is less than 25.

    METHOD TO EXTRACT BITUMEN FROM OIL SANDS
    4.
    发明申请
    METHOD TO EXTRACT BITUMEN FROM OIL SANDS 有权
    从石油中提取铋的方法

    公开(公告)号:US20150307787A1

    公开(公告)日:2015-10-29

    申请号:US14649670

    申请日:2013-12-10

    CPC classification number: C10G1/04 C08L95/00 C10G1/047 E21B43/24

    Abstract: The present invention relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a glycol ether amine described by the following structure: R-(OC2H4)x-NH2 or R-(OCH2CH(CH3))y-NH2 wherein R is a C1 to C6 alkyl group or a phenyl group and x and y independently are 1 to 3.

    Abstract translation: 本发明涉及一种来自油砂的改进的沥青回收方法。 油砂可以进行表面开采并运输到处理区域,或者可以通过位于过深的用于条带开采的油砂沉积物的原位处理来直接处理。 具体地说,本发明包括用以下结构描述的二醇醚胺处理油砂的步骤:R-(OC2H4)x-NH2或R-(OCH2CH(CH3))y-NH2,其中R是C1至C6 烷基或苯基,x和y独立地为1〜3。

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