公开(公告)号：US5095135A

公开(公告)日：1992-03-10

申请号：US680502

申请日：1991-04-04

申请人： Teruaki Yamada ,  Kazuhiko Maeda ,  Ryohei Minami ,  Yukio Nagao ,  Kazuki Sugiura

发明人： Teruaki Yamada ,  Kazuhiko Maeda ,  Ryohei Minami ,  Yukio Nagao ,  Kazuki Sugiura

IPC分类号： C07C51/265 ,  C07C67/52

CPC分类号： C07C51/265 ,  C07C67/52

摘要： A process for the preparation of naphthalenecarboxylic acid esters in which a substituted naphthalene is oxidized with molecular oxygen in the presence of a heavy metal-based catalyst in a solvent comprising a lower aliphatic monocarboxylic acid to form a naphthalenecarboxylic acid and the resulting acid is then esterified. The esterified product is purified by washing, recrystallization, and distillation in that order. Heavy metals are recovered as carbonates from filtrates and washings obtained by seeparation of crude acid and ester products and by washing thereof.

公开(公告)号：US4437974A

公开(公告)日：1984-03-20

申请号：US389566

申请日：1982-06-17

申请人： Ryohei Minami ,  Shozo Okamura ,  Yoshihiko Sunami ,  Takuji Hosoi ,  Takuo Kanou

发明人： Ryohei Minami ,  Shozo Okamura ,  Yoshihiko Sunami ,  Takuji Hosoi ,  Takuo Kanou

IPC分类号： C10G1/06 ,  B01J37/00 ,  C10G1/00 ,  C10G1/08

CPC分类号： C10G1/083 ,  C10G1/006

摘要： A coal liquefaction process and apparatus therefor are disclosed. According to this invention, a finely divided coal and a solvent are contacted with molecular hydrogen in the presence of a catalyst to provide a slurry, the slurry is separated into a gaseous component, a liquid component and a solid residue, the solid residue which is the liquefaction residue is then supplied to a molten metal bath together with oxygen gas to generate a gas entraining fine powdery solids, and the thus recovered fine powdery solids are returned to the liquefaction process as a catalyst.

摘要翻译： 公开了一种煤液化方法及其设备。 根据本发明，细碎的煤和溶剂在催化剂的存在下与分子氢接触以提供浆料，将浆料分离成气体组分，液体组分和固体残余物，固体残余物是 然后将液化残余物与氧气一起供应到熔融金属浴中，以产生夹带细粉末状固体的气体，将回收的细粉末固体作为催化剂返回到液化过程。

公开(公告)号：US4960914A

公开(公告)日：1990-10-02

申请号：US300695

申请日：1989-01-19

申请人： Ryohei Minami

发明人： Ryohei Minami

IPC分类号： B01J23/835 ,  B01J23/847 ,  B01J27/049 ,  C07B61/00 ,  C07C45/00 ,  C07C46/04 ,  C07C50/12 ,  C07C51/12 ,  C07C67/00

CPC分类号： B01J23/835 ,  B01J23/8472 ,  C07C46/04

摘要： A catalyst for use in vapor phase oxidation of naphthalene into 1,4-naphthoquinone is dislosed. The catalyst which is supported on an inert carrier material is represented by the formula:(V)a(K)b(S)c(Fe)d(Sn)e(X)f(O)gwhere V, K, S, Fe, Sn and O stand for vanadium, potassium, sulfur, iron, tin and oxygen, respectively; X stands for at least one element such as silicon, titanium or aluminum which serves as a carrier in the form of oxide; and a, b, c, d, e, f and g are the atomic fractions of the respective elements wherein the ratio of a:b:c:d:e:f=10:10-100:5-100:0.1-10:0.05-10:10-300. Using the above catalyst the vapor phase oxidation can be effected at a relatively low temperature of not higher than 500.degree. C., usually not higher than 420.degree. C., resulting in the formation of 1,4-naphthoquinone in a high yield and with a high selectivity.

摘要翻译： 用于将萘气相氧化成1,4-萘醌的催化剂被封闭。 负载在惰性载体材料上的催化剂由下式表示：（V）a（K）b（S）c（Fe）d（Sn）e（X）f（O）g其中V，K，S ，Fe，Sn和O分别代表钒，钾，硫，铁，锡和氧; X表示作为氧化物形式的载体的至少一种元素，例如硅，钛或铝; a：b：c：d：e：f = 10：10：100：5-100：0.1〜 10：0.05-10：10-300。 使用上述催化剂，气相氧化可以在不高于500℃，通常不高于420℃的相对低的温度下进行，导致以高产率形成1,4-萘醌，并且与 高选择性。