Continuity compositions are provided as are methods of their preparation. The compositions comprise at least one metal carboxylate salt which is modified with at least one molten fatty amine. These compositions find advantageous use in olefin polymerization processes.

Disclosed are a joint production method and device for aziridine, piperazine and triethylenediamine. The method comprises: reaction 1, preparing piperazine and triethylenediamine by taking ethanol amine as a raw material under the existence of a cyclamine catalyst; reaction 2, preparing aziridine by taking the ethanol amine as the raw material under the existence of a catalyst B; and taking heat released in the reaction 1 as a heat source of heat absorption in the reaction 2. The device comprises a reactor 1 for carrying out the reaction 1 and the heat exchange between reaction materials of the reaction 1 and the raw material of the reaction 2 and a reactor 2 for carrying out the reaction 2. According to the present invention, the same raw material, namely the ethanol amine is adopted, aziridine, piperazine and triethylenediamine can be produced in a joint manner, the heat released in the reaction 1 is used for preheating materials in the reaction 2, so that heat coupling between the reactions is implemented, energy conservation is facilitated and competitiveness of the device is improved.

A method of utilizing humic acid to prepare layered humic acid/manganese oxide composite catalyst and its application, the method includes the steps of: adding sodium hypochlorite, manganese salt and humic acid to a water source, stirring and mixing; then introducing into a filter device having a filter material of manganese and a support medium, and generating a layered humic acid/manganese oxide composite catalyst on a surface of the filter material while directing a continuous water flow of the water source into the filter device with a short empty bed contact time for a short time. The catalyst can be used to effectively remove manganese to maintain an effluent with a Mn.sup.2+ concentration of not more than 20 g/L and to effectively remove heavy metals such as iron, manganese, arsenic, thallium, molybdenum or lead from the water source under neutral, acidic or alkaline conditions with a removal rate of 95% more.

A catalyst composition comprises an inert hydrocarbon solvent, having dissolved therein a titanate of the formula Ti(OR).sub.4 wherein each R is the same or different, and is a hydrocarbon residue, and an organic aluminum compound, wherein a molar ratio of the organic aluminum compound and any alkene present in the catalyst composition is greater than one.

A method for continuous-flow amination for an alkyl carboxylic acid compound is provided, in which an amination reagent and a catalyst are mixed in a first micro-mixer and then preheated in a preheater. The mixture is mixed with a substituted alkyl carboxylic acid solution in a second micro-mixer and reacted in a dynamic flow reactor to produce a mixture including a carboxyl-containing organic amine product. Then, the mixture is subjected to gas-liquid separation, and the liquid phase is collected and filtered to obtain a first filtrate and a first filter residue. The first filter residue is mixed with a base solution under stirring and filtered to obtain a second filtrate and a second filter residue. The second filter residue was dried to yield a high-purity carboxyl-containing organic amine product.

An isocyanate-reactive composition is used for the manufacture of a polyurethane resin. Said composition includes A) castor oil; B) at least one polyether polyol having an average functionality of from 2.0 to 4.0; C) at least one chain extender; and D) at least two catalysts selected from amine catalysts and/or alkyl tin catalysts.

The present application provides biodegradable microcapsules, based on specific poly -amino ester shells that can encapsulate and retain cargoes such as, lipophilic, or hydrophobic core materials comprising fragrances, butters, essential or other oils; or oil solubilized ingredients, process of making said biodegradable microcapsules and their applications in various industries. Present application further provides biodegradable shell materials that show evidence of biodegradation or non-persistence in aquatic based and/or soil or compost based environments, and which are stable on storage before use.

A process for the preparation of a compound of formula (I):

##STR00001## comprising the reaction of:

R.sup.1C(O)NHNHC(O)R.sup.2, with R.sup.3CH.sub.2CH.sub.2OCH.sub.2CH.sub.2R.sup.4, in the presence of an alcoholic solvent; wherein R.sup.1 and R.sup.2 are independently selected from straight or branched chain alkyl groups, or are bonded to form a 4, 5, or 6-membered heterocycle, and wherein R.sup.3 and R.sup.4 are independently selected from a halide or a sulphate.

The invention provides fluorinated derivatives of methoxydibenzo[b,f]oxepin of general formula (1) and general formula (2) and a method for obtaining thereof in a catalysed reaction of fluoroazobenzene with methoxydibenzo[b,f]oxepin. The preferable catalyst of the reaction is triethylamine, and the compounds obtained may be useful as molecular switches in biological systems and photopharmacology.

An ambipolar molecule, a preparation method thereof, and an application thereof are disclosed. A chemical structure general formula of the ambipolar molecule provided by this application is represented by formula I:

##STR00001##

where R includes a Lewis base group, X includes at least one of a hydrogen atom and a halogen atom, and n is an integer greater than or equal to 0. The ambipolar molecule of this application possesses both a Lewis acid group and a Lewis base group, enabling such an ambipolar molecule to passivate two types of defects at perovskite grain boundaries, namely undercoordinated anions and undercoordinated cations. Thus, when used in perovskite materials, such an ambipolar molecule can significantly improve the conversion efficiency and stability of perovskite.