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    • 4. 发明申请
    • SLURRY PHASE POLYMERISATION PROCESS
    • 浆料相聚合方法
    • WO2009030645A1
    • 2009-03-12
    • PCT/EP2008/061370
    • 2008-08-29
    • INEOS MANUFACTURING BELGIUM NVKOCH, BenoitMARISSAL, DanielPARISEL, MarcWALWORTH, Brent, R.
    • KOCH, BenoitMARISSAL, DanielPARISEL, MarcWALWORTH, Brent, R.
    • C08F10/02C08F297/08C08F2/12C08F2/14
    • C08F10/02C08F210/16C08F2/001C08F2/14C08F210/14C08F2500/12C08F2500/02C08F2500/01
    • Process for producing a multimodal polyethylene in at least two reactors connected in series, in which 20-80wt% of a first polymer is made in suspension in a first reactor and 80-20wt% of a second polymer is made in suspension in a second reactor in the presence of the first polymer, and a stream or slurry containing the resulting polymer is withdrawn from the second reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50mol% of the liquid component of the slurry, or the non- polymer component of the stream entering the flash tank, is withdrawn from the flash tank as a vapour, wherein the concentration in the stream or slurry entering the flash tank of components having a molecular weight below 50 g/mol, Qjghts (mol%), satisfies the equation C lights c ) + 4.4(P c - 0.8) - 7(C H2 /C Et ) where T c and P c are respectively the temperature (in °C) and pressure (MPa g) at the location where the vapour withdrawn from the flash tank is condensed, and C H2 and C Et are the molar concentrations in the flash tank of hydrogen and ethylene respectively.
    • 在至少两个串联连接的反应器中制备多峰聚乙烯的方法,其中将20-80重量%的第一聚合物悬浮在第一反应器中,并将80-20重量%的第二聚合物悬浮在第二反应器 在第一聚合物的存在下,将含有所得聚合物的料流或浆料从第二反应器中取出并转移到在压力和温度下操作的闪蒸罐中,使得至少50mol%的浆液的液体组分或 进入闪蒸罐的物流的非聚合物组分作为蒸汽从闪蒸罐中取出,其中进入闪蒸罐的料流或浆料中的分子量低于50g / mol的组分的浓度Qjghts(mol %)满足等式Clights c)+ 4.4(Pc-0.8)-7(CH 2 / CEt)其中Tc和Pc分别是从蒸汽中取出的蒸气的温度(℃)和压力(MPa g) 闪蒸罐冷凝,CH 2和CEt分别是闪蒸罐中氢气和乙烯的摩尔浓度。
    • 5. 发明申请
    • SLURRY PHASE POLYMERISATION PROCESS
    • 浆料相聚合方法
    • WO2009030642A1
    • 2009-03-12
    • PCT/EP2008/061366
    • 2008-08-29
    • INEOS MANUFACTURING BELGIUM NVKOCH, BenoitMARISSAL, DanielPARISEL, MarcWALWORTH, Brent, R.
    • KOCH, BenoitMARISSAL, DanielPARISEL, MarcWALWORTH, Brent, R.
    • C08F10/02C08F2/00C08L23/06
    • B01J19/2435B01J2219/0004B01J2219/00166B01J2219/00186C08F10/02C08F110/02C08F2/14C08F2/001C08F2500/01C08F2500/12C08F2500/02
    • Process for producing a multimodal polyethylene in at least two reactors connected in series, in which 20-80wt% of a high molecular weight (HMW) polymer is made in suspension in a first reactor and 20-80wt% of a low molecular weight (LMW) polymer is made in suspension in a second reactor, wherein the ratio of the average activity in the LMW reactor to the average activity in the HMW reactor is from 0.25 and 1.5, where average activity in each reactor is defined as the rate of polyethylene produced in the reactor (kgPE/hr) / [ethylene concentration in the reactor (mol%) x residence time in the reactor (hours) x feed rate of catalyst into the reactor (g/hr)], residence time being defined as the mass of the polymer in the reactor (kg)/the output rate of polymer from the reactor (kg/hr), and wherein the volume of the second reactor is at least 10%, preferably at least 30% and more preferably at least 50% greater than the volume of the first reactor, and the ratio of length to diameter of the first reactor, L/D(l), is greater than that of the second reactor, L/D(2), and preferably at least 20% greater.
    • 在至少两个串联的反应器中制备多峰聚乙烯的方法,其中将20-80重量%的高分子量(HMW)聚合物悬浮在第一反应器和20-80重量%的低分子量(LMW) )聚合物在第二反应器中悬浮制备,其中LMW反应器中的平均活性与HMW反应器中的平均活性的比例为0.25和1.5,其中每个反应器中的平均活性定义为产生的聚乙烯的速率 在反应器中(kgPE / hr)/ [反应器中的乙烯浓度(mol%)×在反应器中的停留时间(小时)×催化剂进入反应器的进料速率(g / hr)],停留时间定义为质量 的反应器中的聚合物(kg)/来自反应器的聚合物的输出速率(kg / hr),并且其中第二反应器的体积为至少10%,优选至少30%,更优选至少50% 大于第一反应器的体积,以及长度与直径之比t 他的第一反应器L / D(1)大于第二反应器的L / D(2),优选至少大于20%。
    • 7. 发明申请
    • SLURRY PHASE POLYMERISATION PROCESS
    • 浆料相聚合方法
    • WO2011051367A1
    • 2011-05-05
    • PCT/EP2010/066314
    • 2010-10-28
    • INEOS MANUFACTURING BELGIUM NVMARISSAL, Daniel
    • MARISSAL, Daniel
    • C08F10/00C08F2/14B01J19/18
    • B01J19/2435B01J2208/00663B01J2219/00171B01J2219/00243C08F10/00C08F110/02C08F2/14C08F2500/24C08F2500/17
    • Process for polymerising, in a loop reactor, at least one olefin monomer in a liquid diluent to produce a slurry comprising solid particulate olefin polymer and said diluent, wherein the ratio between the actual volumetric solids concentration of the slurry and the maximum possible geometric volume solids concentration of the slurry as measured by the bulk density of an unpacked settled bed of particles, SVCR, is V*0.065 or greater, and the ratio of the cumulative settling distance of an average size particle at any point in the reactor in any direction perpendicular to the direction of the flow, to the internal diameter of the loop reactor, is maintained below [0.084*(V - 6.62) + (0.69 - SVCR)* 1.666], where V is the circulation velocity of the slurry in m/s and "cumulative settling distance" is defined as the cumulative distance, expressed as a fraction of the diameter,travelled by a particle in any direction perpendicular to the direction of the flow since the previous upstream pump.
    • 在环管反应器中聚合至少一种在液体稀释剂中的烯烃单体以产生包含固体颗粒烯烃聚合物和所述稀释剂的浆料的方法,其中浆料的实际体积固体浓度与最大可能的几何体积固体之间的比率 通过未包装的沉降床颗粒(SVCR)的体积密度测量的浆料浓度为V * 0.065或更大,并且在任何方向垂直于反应器中的任何点处的平均粒度的累积沉降距离的比 流向环流反应器的内径的方向保持在[0.084 *(V-6.62)+(0.69-SVCR)* 1.666]以下,其中V是浆料的循环速度,m / s 和“累积沉降距离”被定义为累积距离,表示为直径的分数,颗粒在与上一个上游泵的流动方向垂直的任何方向上行进 。