Process for preparing disubstituted pyrazines
    3.
    发明授权
    Process for preparing disubstituted pyrazines 失效
    制备分离的吡咯的方法

    公开(公告)号:US3679680A

    公开(公告)日:1972-07-25

    申请号:US3679680D

    申请日:1969-09-03

    Applicant: TEXACO INC

    CPC classification number: C07D241/12

    Abstract: This invention concerns a one step process for preparing alkylated pyrazines comprising contacting aliphatic nitroketones under mild reducing conditions of temperature and pressure with a reducing catalyst such as Raney nickel.

    Abstract translation: 本发明涉及制备烷基化吡嗪的一步法,其包括在温和和温度的温和还原条件下用还原催化剂如阮内镍接触脂族硝基酮。

    Process for converting petroleum coke to a nitrogen containing fertilizermulch
    4.
    发明授权
    Process for converting petroleum coke to a nitrogen containing fertilizermulch 失效
    将石油焦转化成含氮肥料的方法

    公开(公告)号:US3595638A

    公开(公告)日:1971-07-27

    申请号:US3595638D

    申请日:1969-11-24

    Applicant: TEXACO INC

    CPC classification number: C05F11/00

    Abstract: PETROLEUM COKE IS CONVERTED TO A PRODUCT CONTAINING UP TO 12.3% NITROGEN BY AMMOXIDATION OF THE COKE FOLLOWED BY TREATING THE AMMOXIDIZED PRODUCT WITH CONCENTRATED NITRIC ACID AND NEUTRALIZING THE RESULTING PRODUCT WITH CONCENTRATED AMMONIUM HYDROXIDE. IF THE INITIAL AMMOXIDATION STEP IS OMITTED A PRODUCT CONTAINING AROUND 7% NITROGEN IS OBTAINED. THE PRODUCT WILL NOT HARM PLANTS AND ACTS AS A MULCH AFTER ITS NITROGEN HAS BEEN DEPLETED. A MICRONUTRIENT SUCH AS BORAX OR A SIMILAR WATER-SOLUBLE SALT CAN BE ADDER EITHER DURING THE AMMOXIDATION OR THE NEUTRALIZATION STEPS TO FORM A PRODUCT WHICH IS BOTH A MICRONUTRIENT AND A SOURCE NITROGEN.

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