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    • 72. 发明申请
    • REMOVAL OF SALTS IN THE MANUFACTURE OF PHENOLIC COMPOUND
    • 在酚醛化合物的制造中去除废物
    • WO00066523A1
    • 2000-11-09
    • PCT/EP2000/004203
    • 2000-05-02
    • C07C37/72C07C37/08C07C37/68C07C37/74C07C39/04
    • C07C37/685C07C37/08C07C39/04
    • There is provided a process for the manufacture of phenolic compounds by oxidising an alkyl-substituted aromatic compound to form the hydroperoxide derivative thereof, followed by cleavage of the hydroperoxide to form an aralkyl (aryl alkyl or alkyl aryl) hydroperoxide cleavage mass and neutralisation of the aralkyl hydroperoxide cleavage mass to form a neutralised aralkyl hydroperoxide cleavage mass stream, comprising: separating a neutralised aralkyl hydroperoxide cleavage mass stream containing salts of neutralisation into a crude ketone stream and a crude phenolic stream containing the salts of neutralisation; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralisation; adding water and a diluent composition to the crude phenolic bottoms stream, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase containing salts of neutralisation; whereby the amount of salts of neutralisation in the hydrocarbon phase is reduced compared to the amount of salts of neutralisation present prior to separation.
    • 提供了通过氧化烷基取代的芳族化合物以形成其氢过氧化物衍生物,随后切割氢过氧化物以形成芳烷基(芳基烷基或烷基芳基)氢过氧化物切割物质并中和的方法来制备酚类化合物 芳烷基氢过氧化物切割物质以形成中和的芳烷基氢过氧化物切割质量流,包括:将含有中和盐的中和芳烷基氢过氧化物切割质量流分离成粗酮流和含有中和盐的粗酚流; 将粗酚流分离成富含酚类化合物的富含浓酚的料流,以及富含焦油和α-甲基苯乙烯二聚体的粗酚底物流,与粗酚流相比,所述粗酚底物流含有中和盐 ; 向粗酚底物流中加入水和稀释剂组合物,从而形成可分离的粗酚底物流,所述稀释剂组合物由与粗酚底物流相容的烃相组成,并且具有低于粗酚苯的浓度的组合密度 底部流; 将可分离的粗酚底物流分离成烃相和含有中和盐的水相; 由此与分离前存在的中和盐的量相比,烃相中的中和盐的量减少。
    • 73. 发明申请
    • HIGH SELECTIVE METHOD OF PHENOL AND ACETONE PRODUCTION
    • 苯酚和乙腈生产的高选择性方法
    • WO00014042A1
    • 2000-03-16
    • PCT/US1999/020286
    • 1999-09-03
    • C07B61/00C07C1/20C07C15/44C07C27/00C07C37/08C07C39/04C07C45/53C07C49/08C07C39/12C07C45/00
    • C07C1/20C07C37/08C07C45/53C07C2527/054C07C15/44C07C49/08C07C39/04
    • Disclosed is a process for the cleavage of technical cumene hydroperoxide (CHP) into phenol, acetone and alpha -methylstyrene. In a first stage, the CHP cleavage process is conducted in such a way to maintain the heat generation rate and the heat removal rate balanced in each of the CHP cleavage reactors. The cleavage of the CHP is conducted under substantially isothermal conditions at a temperature in the range of 47-50 DEG C. In the second stage of the process dicumylperoxide (DCP) and dimethylbenzene alcohol (DMBA) cleavage is carried out in a multi-section plug-flow reactor under non-isothermal conditions at a controlled temperature increase. The temperature is controlled with the use of thermocouples installed in each section of the reactor. The obtained temperature profile is compared with the temperature profile required by the kinetic model based on DELTA T in each section of the reactor. Based on any obtained fluctuations at least one of the amount of water additionally fed to the reactor, the temperature and the degree of sulfuric acid conversion into NH4HSO4 are adjusted.
    • 公开了将技术性氢过氧化枯烯(CHP)裂解成苯酚,丙酮和α-甲基苯乙烯的方法。 在第一阶段中,CHP裂解工艺以保持每个CHP裂解反应器中的发热速率和热去除率平衡的方式进行。 CHP的裂解在基本上等温条件下在47-50℃的温度下进行。在二异辛基过氧化物(DCP)和二甲基苯醇(DMBA)的过程的第二阶段中,在多段 在不受等温条件下控制温度升高的活塞式反应器。 使用安装在反应堆每个部分的热电偶来控制温度。 将获得的温度曲线与基于反应器每个部分中的DELTA T的动力学模型所需的温度曲线进行比较。 基于任何获得的波动,至少一个额外进料到反应器的水中,调节温度和硫酸转化成NH 4 HSO 4的程度。