摘要:
An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water.
摘要:
Saturated aliphatic aldehydes are prepared by contacting diesters of carbonic acid with synthesis gas and a Group VIII compound, preferably a cobalt compound, a halogen, and optionally a Group V trivalent ligand.
摘要:
Process for selective production of acetaldehyde and dimethyl acetal by the reaction of methanol with carbon monoxide in contact with a catalyst containing cobalt atom, halide atom and a mixture of a trivalent phosphorus compound and a trivalent nitrogen compound. The amount of trivalent nitrogen compound in its mixture varies from 5 mole percent to 50 mole percent of such mixture.
摘要:
A process for hydrogenating bound oxygen-containing organic feeds into their corresponding alcohols by contact with a coprecipitated copper-aluminum catalyst that has been activated by contact with reducing gas at a temperature that gradually increases.
摘要:
A process for hydrogenating bound oxygen-containing organic feeds into their corresponding alcohols by contact with a coprecipitated copper-aluminum catalyst that has been activated by contact with reducing gas at a temperature that gradually increases.
摘要:
A process for the production of acetate esters by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.O) oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen promoter, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'; and wherein ROH is methanol or a mixture of methanol and at least one higher alcohol.
摘要翻译:通过式ROH的醇与一氧化碳与铑金属原子的均相催化剂体系(含磷配体)的催化反应生产乙酸酯的方法,其中存在至少一个氧代(= O )氧原子连接到磷原子或碳原子上以形成Z基团,并且“IMAGE”基团位于从被除去的至少一个碳原子上,优选从2-4个碳原子除去的分子的磷原子 在温和的反应条件下,其中R'是H,芳基,烷芳基,芳烷基或烷基,并且其中所述R'基团中的一个或多个可以是 被分子中被Z基团取代但不超过3个所述R'基团如此取代; a是0-4的整数; b是0-3的整数; Z为P(O)R'R'; -C(O)OR“或C(O)R”,其中R“为R'; 并且其中ROH是甲醇或甲醇与至少一种高级醇的混合物。
摘要:
A combination of calixarene bisphosphite ligand and an organophosphine ligand. The combination can be employed with a catalytic metal to form a complex catalyst. The catalyst can be employed in ahydroforaiylation process for producing a mixture of aldehydes.
摘要:
A combination of calixarene bisphosphite ligand and an organophosphine ligand. The combination can be employed with a catalytic metal to form a complex catalyst. The catalyst can be employed in a hydroforaiylation process for producing a mixture of aldehydes.
摘要:
An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water.
摘要:
A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper, aluminum, and a metal (X) selected from the group consisting of magnesium, zinc, titanium, zirconium, tin, nickel, cobalt and mixtures thereof; that has been reduced with an increasing temperature during the reduction.