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    Process for removing carbon dioxide from acetylene
    1.
    发明授权
    Process for removing carbon dioxide from acetylene 失效
    从乙炔中除去二氧化碳的方法

    公开(公告)号：US3775507A

    公开(公告)日：1973-11-27

    申请号：US3775507D

    申请日：1972-03-27

    Applicant: BASF AG

    Inventor： DUEMBGEN G ,  PLATZ R

    IPC: B01D53/62 ,  C07C7/11 ,  C07C11/24

    CPC classification number: B01D53/62 ,  C07C7/11 ,  Y02C10/04 ,  Y02P20/152 ,  C07C11/24

    Abstract: A PROCESS FOR REMOVING RESIDUAL AMOUNTS OF CARBON DIOXIDE FROM PURE ACETYLENE (WHICH HAS BEEN OBTAINED BY THERMAL CRACKING OF HYDROCARBONS AFTER A MAIN WASHING OF THE CRACKED GAS WITH DIETHANOLAMINE FOR REMOVAL OF THE MAJOR PORTION OF C02 AND SEPARATION OF THE OTHER COMPONENTS OF THE CRACKED GAS) WHICH COMPRISES FIRST GIVING THE PURE ACETYLENE A PRELIMINARY WASH WITH THE REGENERATED DIETHANOLAMINE SOLUTION FROM THE MAIN CO2 WASH, THEN FURTHER WASHING IT WITH A FRESH DIETHANOLAMINE SOLUTION SERVING TO REPLENISH THE WASH SOLUTION OF THE MAIN C02 WASH, COMBINING THE TWO WASH SOLUTIONS AND RESUPPLYING THEM TO THE MAIN CO2 WASH CYCLE.

    Production of 2,2-dimethyl-1,3-propanediolhydroxypivalic monoester
    2.
    发明授权
    Production of 2,2-dimethyl-1,3-propanediolhydroxypivalic monoester 失效
    2,2-二甲基-1,3-丙二醇羟基聚合单体的制备

    公开(公告)号：US3729506A

    公开(公告)日：1973-04-24

    申请号：US3729506D

    申请日：1970-11-16

    Applicant: BASF AG

    Inventor： MERGER F ,  OBERHANSBERG J ,  FUCHS W ,  DUEMBGEN G

    IPC: C07C69/675 ,  C07C69/66

    CPC classification number: C07C69/675 ,  C07C45/75 ,  Y02P20/582 ,  C07C47/19

    Abstract: THE PRODUCTION OF 2,2-DIMETHYL1,3-PROPANEDIOLHYDROXYPIVALIC MONOESTER BY HEATING 2,2-DIMETHYL-3-HYDROXYPROPANAL (PRAPARED BY THE REACTION OF FORMALDEHYDE WITH ISOBUTYRALDEHYDE IN THE PRESENCE OF TERTIARY AMINES) IN THE PRESENCE OF AN ORGANIC SALT OF A TERTIARY AMINE. AS COMPARED WITH THE PRIOR ART METHODS, THE PROCESS ACCORDING TO THE INVENTION GIVES 2,2-DIMETHYL-1,3-PROPANEDIOLHYDROXYPIVALIC MONOESTER BY A SIMPLER AND MORE ECONIMICAL METHOD, IN HIGHER PURITY AND WITH A HIGHER YIELD WITH REFERENCE TO THE STARTING MATERIAL AND WITH A HIGHER SPACE-TIME YIELD OF PURE END PRODUCT. THE COMPOUND WHICH CAN BE PREPARED BY THE PROCESS ACCORDING TO THE INVENTION IS A MORE VALUABLE STARTING MATERIAL FOR THE PRODUCTION OF SYNTHETIC RESINS AND PLASTICIZERS.

    Separation of basic inorganic compounds from the reaction mixture obtained in the manufacture of hydroxypivalic acid neo-pentylglycol ester (2,2-dimethyl-1,3-propanediol-hydroxypivalic monoester
    3.
    发明授权
    Separation of basic inorganic compounds from the reaction mixture obtained in the manufacture of hydroxypivalic acid neo-pentylglycol ester (2,2-dimethyl-1,3-propanediol-hydroxypivalic monoester 失效
    从羟基邻苯二甲酸二羟基苯甲酸酯（2,2-二甲基-1,3-丙二醇 - 羟基聚合单体）制备的反应混合物中分离出基本无机化合物

    公开(公告)号：US3852335A

    公开(公告)日：1974-12-03

    申请号：US37761373

    申请日：1973-07-09

    Applicant: BASF AG

    Inventor： MERGER F ,  DUEMBGEN G

    IPC: C07C69/67 ,  C07C20060101 ,  C07C67/48 ,  C07C69/66

    CPC classification number: C07C67/44 ,  C07C67/60 ,  C07C69/675

    Abstract: Separation of basic inorganic compounds from the reaction mixture obtained in the manufacture of hydroxypivalic acid neopentylglycol ester (2,2-dimethyl-1,3-propanediolhydroxypivalic monoester) by the addition of formic acid to the mixture obtained from the reaction of hydroxypivalaldehyde in the presence of basic catalysts, followed by filtration. The compound produced in the process of the invention is a valuable intermediate in the manufacture of polyesters, synthetic resins and plasticizers.

    Abstract translation: 通过将甲酸加入到由羟甲基新戊酸羟基新戊酸酯（2,2-二甲基-1,3-丙二醇 - 羟基新戊酸单酯）反应获得的混合物中获得的反应混合物中的碱性无机化合物的分离 碱性催化剂的存在，然后过滤。 在本发明方法中生产的化合物是制造聚酯，合成树脂和增塑剂的有价值的中间体。

    5.
    发明专利
    未知

    公开(公告)号：DK119654B

    公开(公告)日：1971-02-08

    申请号：DK530568

    申请日：1968-11-01

    Applicant: BASF AG

    Inventor： DUEMBGEN G ,  HAAS H ,  SPERBER H ,  GRABOWSKY O ,  WOERNER A ,  ZIPFEL J

    IPC: C07C47/058 ,  C07C45/00 ,  C07C45/38 ,  C07C45/78 ,  C07C67/00 ,  C07C47/04

    Abstract: 1,235,138. Formaldehyde. BADISCHE ANILIN- & SODA-FABRIK A.G. 1 Nov., 1968 [4 Nov., 1967; 2 Dec., 1967; 19 July, 1968], No. 51928/68. Heading C2C. Formaldehyde solutions are prepared by reaction of methanol in the gas phase with O 2 or a gas containing free O 2 with or without steam at 600-800‹ C. in contact with a silver catalyst followed by multistage absorption of the formaldehyde from the resultant gas, the gas passing through at least three absorption stages at 60-90‹ C. under acid conditions, the first to penultimate stages containing an aqueous ureaformaldehyde precondensate solution having a molar ratio of formaldehyde to urea of from 1.8:1 to 2.8:1 and the final stage containing an aqueous urea solution, the residence time in said final stage being not more than one hour. Aqueous methanol recovered from the gas leaving the final absorption stage is preferably recycled for oxidation, and the mixture of recovered aqueous methanol and fresh methanol is treated with an alkaline agent to a pH of at least 9 before oxidation. The aqueous formaldehyde-urea precondensate solution may be obtained by mixing liquids from the final and first absorption stages and condensing under acid conditions.

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