摘要:
Production of adipic acid and derivatives thereof The invention relates to a catalytic process for the production of a compound of formula (I) from a compound of formula (II)
摘要:
A process for the manufacturing of fire suppressing crystals having a high Q-factor particle size distribution, said fire suppression crystals being intended for use as a fire suppressing additive in polymer compositions, the process comprising the steps; a) Preparing a mother liquor comprising water and a salt composition obtained in step c) or d), the temperature of said mother liquor being adjusted to 10 - 50°C and comprising said salt composition to a level of at least 90% of saturation. Calcium hydroxide is added to the mother liquor to a level of at least 90% of saturation. b) Preparing an acid solution comprising water and two or more acids selected from the group consisting of; C 2 -C 6 mono-, di- and/or tri-carboxylic acids, and optionally a phosphorous compound. The temperature of said acid solution is adjusted to 20 - 90°C and comprising acids to a level of at least 50% of saturation. c) The mother liquor, comprising calcium hydroxide, obtained from step a) is subjected to intense agitation under which the acid solution obtained from step b) is slowly added to said mother liquor allowing reaction to form salt until supersaturation is achieved while maintaining PH at a level securing that no unreacted acids remains after reaction, d) Crystals formed in the reaction of step c) is continuously or discontinuously removed from the reaction product of step c).
摘要:
Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.
摘要:
The present invention relates to salt forms of the phosphoinositide 3-kinase (PI3K) inhibitor (S)-7-(1-(9H-purin-6-ylamino)ethyl)-6-(3-fluorophenyl)-3-methyl-5H-thiazolo[3,2- a]pyrimidin-5-one, pharmaceutical compositions comprising the same, and methods of using the salts and compositions for the treatment of PI3K-associated diseases such as cancer.
摘要:
The present disclosure relates to methods for separating and purifying a long chain diacid from other long chain diacids, monocarboxylic acids, hydroxyl acids or alkanes by simulated or actual moving bed chromatography.
摘要:
Verfahren zur Herstellung von rieselfähigen und lagerstabilen Dicarbonsäure-Kristallen (DK), umfassend die Schritte a) Kristallisation einer Dicarbonsäure aus einer Lösung (L), die ein Lösungsmittel (LM) und gelöste Dicarbonsäure enthält, in einem Kristallisator (I) unter Erhalt einer Suspension (S), enthaltend suspendierte Dicarbonsäure-Kristalle (sDK) und eine Mutterlauge (M), die das Lösungsmittel (LM) und gelöste Dicarbonsäure enthält, b) Überführen der Suspension (S) aus Verfahrensschritt a) durch eine Kreiselpumpe in eine Trocknungsvorrichtung (II; III), c) Abtrennen der suspendierten Dicarbonsäure-Kristalle (sDK) von der Mutterlauge (M) in der Trocknungsvorrichtung (II; III) unter Erhalt getrockneter Dicarbonsäure-Kristalle (tDK) d) Überführen der getrockneten Dicarbonsäure-Kristalle (tDK) aus Verfahrensschritt c) durch ein Dichtstromfördersystem in eine Lagervorrichtung (IV) unter Erhalt der rieselfähigen und lagerstabilen Dicarbonsäure-Kristalle (DK).
摘要:
The present invention provides a method of synthesizing an ester of a saturated carboxylic acid from a saturated polyhydroxycarboxylic acid by performing a deoxydehydration reaction and a hydrogen transfer reaction.
摘要:
Disclosed are nylon salt solution preparation processes including a trim diamine feed. The nylon salt solution is prepared by feeding a dicarboxylic acid monomer and a diamine monomer to a single continuous stirred tank reactor. The dicarboxylic acid is metered, based on weight, from a loss-in-weight feeder to the reactor. The nylon salt solution is formed continuously and has low variability from a target pH and/or a target salt solution concentration. The nylon salt solution is transferred directly to a storage tank, without further monomer addition, pH adjustment, or salt solution adjustment after exiting the continuous stirred tank reactor.
摘要:
Disclosed are nylon salt solution preparation processes including a loss-in-weight feeder and a continuous stirred tank reactor. The nylon salt solution is prepared by feeding a dicarboxylic acid monomer and a diamine monomer to a single continuous stirred tank reactor. The dicarboxylic acid is metered, based on weight, from a loss-in-weight feeder to the reactor. The nylon salt solution is formed continuously and has low variability from a target pH and/or a target salt solution concentration. The nylon salt solution is transferred directly to a storage tank, without further monomer addition, pH adjustment, or salt solution adjustment after exiting the continuous stirred tank reactor.