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    • 6. 发明授权
    • Preparation of fatty acid esters
    • 脂肪酸酯的制备
    • US4421691A
    • 1983-12-20
    • US270851
    • 1981-06-05
    • Wolfgang H. E. MullerPeter Hofmann
    • Wolfgang H. E. MullerPeter Hofmann
    • C07C69/02B01J23/94B01J31/00B01J31/02C07B61/00C07C20060101C07C67/00C07C67/04C07C67/38C07C69/24
    • C07C67/38
    • A process for preparing fatty acid esters by reacting olefins, alkanols and carbon monoxide in the presence of a compound of cobalt and a promoter consisting of pyridine, non-orthosubstituted alkylpyridines or mixtures thereof. The reaction output is at first treated with a gas containing oxygen in a non-damaging manner and then reprocessed in two distillation stages. The first distillation stage is operated at a higher pressure than the second. In the first distillation stage there is produced a distillate free of cobalt and a sump product containing all of the cobalt used as catalyst. In the second distillation stage the sump product of the first distillation stage is again distilled to produce another distillate free of cobalt and a cobalt concentrate as sump product. This cobalt concentrate is incorporated into pyridine, a non-orthosubstituted alkylpyridine or a mixture thereof to form a suspension. The suspension is then treated by a mixture of carbon monoxide and hydrogen at a temperature of 100.degree. to 250.degree. C. and a pressure at least 50 bars, and this treatment product is fed back into the fatty acid ester synthesis.
    • 在钴化合物和由吡啶,非取代的烷基吡啶或其混合物组成的促进剂的存在下,使烯烃,aklanols和一氧化碳反应制备脂肪酸酯的方法。 首先用非破坏性方式用含氧气体处理反应产物,然后在两个蒸馏阶段再处理。 第一个蒸馏阶段的操作压力高于第二个。 在第一蒸馏阶段,产生不含钴的馏出物和含有用作催化剂的所有钴的贮槽产物。 在第二蒸馏阶段,再次蒸馏第一蒸馏阶段的贮槽产物以产生不含钴的另一种馏出物和作为贮槽产物的钴浓缩物。 将该钴浓缩物并入吡啶,非邻位取代的烷基吡啶或其混合物中以形成悬浮液。 然后将悬浮液在一氧化碳和氢气的混合物中在100至250℃的温度和至少50巴的压力下处理,并将该处理产物反馈到脂肪酸酯合成中。
    • 8. 发明授权
    • Process for the separation of methanol from mixtures of tetrahydrofuran
with methanol and water
    • 从四氢呋喃与甲醇和水的混合物中分离甲醇的方法
    • US4332645A
    • 1982-06-01
    • US167443
    • 1980-07-10
    • Wolfgang H. E. MullerMichael Zolffel
    • Wolfgang H. E. MullerMichael Zolffel
    • C07C29/80C02F1/04C07C27/00C07C31/04C07C67/00C07D307/08B01D3/00C07D307/00
    • C07D307/08Y10S203/20
    • A process for the continuous separation of methanol and water from a feed mixture containing predominantly tetrahydrofuran admixed with water, methanol and small amounts of additional compounds, in a rectifying apparatus having at last two rectifying columns, of which two are operated at different pressures which involves feeding the raw material into a first column operated under lower pressure, and introducing the distillate from the column operated under a lower pressure to a second column operated under a higher pressure, while a product stream from the second column operated under a higher pressure is reintroduced into the first column operated under a lower pressure. In this process the product stream withdrawn from the second column operated under a higher pressure is withdrawn as a side stream from the stripping or enrichment section of the second column and is returned into the first column operated under a lower pressure, while a methanol-enriched product stream containing practically all of the methanol introduced with the raw material into the rectifying apparatus is withdrawn from the head of the second column operated under a higher pressure. The first column is operated for example at atmospheric pressure and the second column is operated at a pressure of from 1 to 25 bar.
    • 在最后两个精馏塔的精馏装置中,甲醇和水从主要包含四氢呋喃混合的进料混合物中连续分离出来的方法,其中两个精馏塔在不同的压力下操作, 将原料进料到在较低压力下操作的第一塔中,并将来自在较低压力下操作的塔的馏出物引入到在较高压力下操作的第二塔中,同时再次引入来自第二塔的产物流 进入在较低压力下运行的第一列。 在该方法中,从较高压力下运行的第二塔排出的产物流作为来自第二塔的汽提或富集段的侧流排出,并返回到在较低压力下运行的第一塔中,同时富含甲醇 将从原料中引入的几乎所有的甲醇的整个装入整流装置的产物流从高压运转的第二塔的头部取出。 第一列例如在大气压下操作,第二列在1至25巴的压力下操作。
    • 9. 发明授权
    • Process for the recovery of pure methylal from methanol-methylal mixtures
    • 从甲醇 - 甲缩醛混合物中回收纯甲缩醛的方法
    • US4385965A
    • 1983-05-31
    • US342975
    • 1982-01-26
    • Wolfgang H. E. MullerManfred Kaufhold
    • Wolfgang H. E. MullerManfred Kaufhold
    • C07C41/00C07C41/58C07C43/303C07C67/00B01D3/26
    • C07C41/58
    • In a process for recovering pure methylal from methanol-methylal mixtures, which can optionally contain still further compounds, the separation conducted in a rectification device comprising two rectifying columns. In the first rectifying column, the mixture to be separated is rectified under a pressure lower than that in the second column, into a methylal-rich, methanol-poor distillate, and into a practically methylal-free, methanol-rich sump product. The methylal-rich distillate of the first rectification is then separated in a second rectifying column, operated under a higher pressure than the first rectification column, into a compound stream containing methanol and methylal, which is then recycled to the first rectifying column, and into pure methylal as the sump product. In a specific refinement, the first rectification is preferably operated under a pressure of 1-22 bar absolute and the second rectification preferably under a pressure of 9-30 bar absolute, with the second rectification being operated under a pressure which is at least 8 bar higher than that of the first rectification.
    • 在从可以任选地含有其它化合物的甲醇 - 甲缩醛混合物中回收纯甲缩醛的方法中,在包括两个精馏塔的精馏装置中进行分离。 在第一精馏塔中,将待分离的混合物在低于第二塔的压力下进行精馏,成为富含甲缩醛的不饱和甲醇的馏出物,并进入实际上无甲醛的富含甲醇的油槽产物。 然后将第一精馏的甲缩醛馏出物在比第一精馏塔高的压力下操作的第二精馏塔中分离成含有甲醇和甲缩醛的复合物流,然后将其再循环至第一精馏塔,并进入 纯甲缩醛作为贮槽产品。 在特定的改进中,第一精馏优选在1-22巴绝对压力下操作,优选在9-30巴绝对压力下进行第二次精馏,第二次精馏在至少8巴的压力下操作 高于首次整改。