Process for the production of 2,2-dimethoxypropane
    1.
    发明授权
    Process for the production of 2,2-dimethoxypropane 失效
    生产2,2-二甲氧基丙烷的方法

    公开(公告)号:US4775447A

    公开(公告)日:1988-10-04

    申请号:US621814

    申请日:1984-06-18

    IPC分类号: C07C41/56 C07C41/58 B01D3/36

    摘要: The process for the acid-catalyzed reaction of acetone with methanol to form 2,2-dimethoxypropane may be significantly improved if a stoichiometric ratio of methanol/acetone is employed in the initial reaction.Of particular advantage is the use of stoichiometric amounts of reactants in order to (1) avoid the expense of using an excess of either reactant, and (2) facilitate the removal of the 2,2-dimethoxypropane as an azeotrope with the methanol, thereby avoiding costly and complex product recovery methods.

    摘要翻译: 如果在初始反应中使用甲醇/丙酮的化学计量比,丙酮与甲醇酸反应形成2,2-二甲氧基丙烷的方法可能会显着改善。 特别有利的是使用化学计量的反应物,以便(1)避免使用过量的任一种反应物的费用,和(2)促进除去与甲醇的共沸物的2,2-二甲氧基丙烷,由此 避免昂贵和复杂的产品回收方法。

    Preparation of 1,1-dimethoxycyclohexane
    3.
    发明授权
    Preparation of 1,1-dimethoxycyclohexane 失效
    制备1,1-二甲氧基环己烷

    公开(公告)号:US4652344A

    公开(公告)日:1987-03-24

    申请号:US803198

    申请日:1985-12-02

    IPC分类号: C07C41/58 C07C43/305 B01D3/36

    CPC分类号: C07C41/58 C07C2101/14

    摘要: Dimethoxycyclohexane, prepared by reacting cyclohexanone with methanol, may be recovered from the product mixture in substantially pure form by first adding water as an azeotropic agent to said mixture to form an azeotrope with unreacted cyclohexanone, removing said azeotrope by distillation, thereby leaving substantially pure dimethoxycyclohexane.

    摘要翻译: 通过首先将水作为共沸剂加入到所述混合物中以与未反应的环己酮形成共沸物,通过蒸馏除去所述共沸物,从而从基本上纯的形式从产物混合物中回收二甲氧基环己烷,从而留下基本上纯的二甲氧基环己烷 。

    Process for the production and purification of diethoxymethane by
azeotropic distillation
    4.
    发明授权
    Process for the production and purification of diethoxymethane by azeotropic distillation 失效
    通过共沸蒸馏生产和纯化二乙氧基甲烷的方法

    公开(公告)号:US4613411A

    公开(公告)日:1986-09-23

    申请号:US803199

    申请日:1985-12-02

    IPC分类号: C07C41/58 B01D3/36

    CPC分类号: C07C41/58 C07C41/56

    摘要: Diethoxymethane (ethylal), prepared by reacting formaldehyde with ethanol, may be recovered from the product mixture in substantially pure form by first distilling off an azeotrope comprising ethanol and diethoxymethane, adding a selected solvent to the azeotrope which will form an azeotrope with the ethanol, distilling off said latter azeotrope and recovering the substantially pure diethoxymethane.

    摘要翻译: 通过甲醛与乙醇反应制备的二乙氧基甲烷(乙基)可以从产物混合物中以基本上纯的形式回收,首先蒸馏出包含乙醇和二乙氧基甲烷的共沸物,向与乙醇形成共沸物的共沸物中加入选定的溶剂, 蒸馏掉后一种共沸物并回收基本上纯的二乙氧基甲烷。

    Hydroformylation catalyst and process
    5.
    发明授权
    Hydroformylation catalyst and process 失效
    加氢甲酰化催化剂和工艺

    公开(公告)号:US4542119A

    公开(公告)日:1985-09-17

    申请号:US598935

    申请日:1984-04-11

    摘要: Olefins are hydroformylated with syngas in the presence of a novel organo metallic complex catalyst to form the corresponding aldehydes at high reaction rate and improved selectivity of linear aldehydes over branched aldehydes.The novel catalyst comprises an organo metallic complex formed from a mixture of:(1) platinum (II) acetylacetonate;(2) a Group IVB metal halide; and(3) a bidentate tertiary ligand of the formulaR.sub.1 R.sub.2 Q(CH.sub.2).sub.m QR.sub.3 R.sub.4 ; or ##STR1## wherein Q is arsenic, antimony, or phosphorus; and R.sub.1,R.sub.2,R.sub.3 and R.sub.4 are alkyl, alkoxyl, aryl, or aryloxyl groups, and may be the same or different; and m is an integer of from 3 to about 5; and n is an integer of from 2 to about 4.

    摘要翻译: 烯烃在新的有机金属配合物催化剂存在下用合成气进行加氢甲酰化,以高反应速率形成相应的醛,并提高线性醛与分支醛的选择性。 新型催化剂包含由以下混合物形成的有机金属络合物:(1)乙酰丙酮铂(II); (2)ⅣB族金属卤化物; 和(3)式R1R2Q(CH2)mQR3R4的二齿叔配体; 或其中Q是砷,锑或磷; 并且R 1,R 2,R 3和R 4是烷基,烷氧基,芳基或芳氧基,并且可以相同或不同; m为3〜5的整数; n为2〜4的整数。

    Hydroformylation catalyst and process
    6.
    发明授权
    Hydroformylation catalyst and process 失效
    加氢甲酰化催化剂和工艺

    公开(公告)号:US4551559A

    公开(公告)日:1985-11-05

    申请号:US732314

    申请日:1985-05-09

    IPC分类号: B01J31/18 B01J31/24 C07C45/50

    摘要: Olefins are hydroformylated with syngas in the presence of a novel organo metallic complex catalyst to form the corresponding aldehydes at high reaction rates and improved selectivity of linear aldehydes over branched aldehydes.The novel catalyst comprises an organo metallic complex formed from a mixture of:(1) platinum (II) acetylacetonate;(2) a Group IVB metal halide; and(3) a bidentate tertiary ligand of the formula ##STR1## wherein Q is arsenic, antimony, or phosphorus; and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl, alkoxyl, aryl, or aryloxyl groups, and may be the same or different.

    摘要翻译: 在新型有机金属络合物催化剂存在下,烯烃与合成气加氢甲酰化,以高反应速率形成相应的醛,并提高线性醛与分支醛的选择性。 新型催化剂包含由以下混合物形成的有机金属络合物:(1)乙酰丙酮铂(II); (2)ⅣB族金属卤化物; 和(3)式“IMAGE”的二齿叔配体,其中Q是砷,锑或磷; 并且R 1,R 2,R 3和R 4是烷基,烷氧基,芳基或芳氧基,并且可以相同或不同。

    Hydroformylation process with platinum (O) catalyst
    7.
    发明授权
    Hydroformylation process with platinum (O) catalyst 失效
    用铂(O)催化剂加氢甲酰化过程

    公开(公告)号:US4487973A

    公开(公告)日:1984-12-11

    申请号:US491687

    申请日:1983-05-05

    CPC分类号: C07C45/50

    摘要: Hydroformylation process for preparing aldehydes by reactively contacting an olefin and syngas, at elevated temperature and pressure, in the presence of a catalyst comprising a mixture of (1) a platinum complex of the formula Pt(QR.sub. 3).sub.m where Q is a Group VA element, R is alkyl, alkoxyl, aryl or aryloxyl and m is an integer of from 2 to 4, and (2) a metal halide of the formula MX.sub.n where M is a Group IVB metal, X is a halogen and n is 2 or 4.

    摘要翻译: 在升高的温度和压力下,在催化剂的存在下,通过使烯烃和合成气反应性接触来制备醛的加氢甲酰化方法,所述催化剂包含(1)式Pt(QR 3)m的铂络合物的混合物,其中Q是组VA 元素,R是烷基,烷氧基,芳基或芳氧基,m是2至4的整数,和(2)式MXn的金属卤化物,其中M是ⅣB族金属,X是卤素,n是2或 4。

    Hydroformylation catalyst and process
    8.
    发明授权
    Hydroformylation catalyst and process 失效
    加氢甲酰化催化剂和工艺

    公开(公告)号:US4564711A

    公开(公告)日:1986-01-14

    申请号:US732313

    申请日:1985-05-09

    IPC分类号: B01J31/18 B01J31/24 C07C45/50

    摘要: Olefins are hydroformylated with syngas in the presence of a novel organo metallic complex catalyst to form the corresponding aldehydes at high reaction rates and improved selectivity of linear aldehydes over branched aldehydes.The novel catalyst comprises an organo metallic complex formed from a mixture of:(1) platinum (II) acetylacetonate;(2) a Group IVB metal halide; and(3) a bidentate tertiary ligand of the formula ##STR1## wherein Q is arsenic, antimony, or phosphorus; and R.sub.1, R.sub.2 R.sub.3 and R.sub.4 are alkyl, alkoxyl, aryl, or aryloxyl groups, and may be the same or different; and m is an integer of from 3 to about 5; and n is an integer of from 2 to about 4.

    摘要翻译: 在新型有机金属络合物催化剂存在下,烯烃与合成气加氢甲酰化,以高反应速率形成相应的醛,并提高线性醛与分支醛的选择性。 新型催化剂包含由以下混合物形成的有机金属络合物:(1)乙酰丙酮铂(II); (2)ⅣB族金属卤化物; 和(3)式“IMAGE”的二齿叔配体,其中Q是砷,锑或磷; 并且R 1,R 2 + L,R 3和R 4是烷基,烷氧基,芳基或芳氧基,并且可以相同或不同; m为3〜5的整数; n为2〜4的整数。