30 results about "Superbase" patented technology

A mass spectrometer is disclosed wherein highly charged fragment ions resulting from Electron Transfer Dissociation fragmentation of parent ions are reduced in charge state within a Proton Transfer Reaction cell by reacting the fragment ions with a neutral superbase reagent gas such as Octahydropyrimidolazepine.

A synthesis process for polyhedral oligomeric silsesquioxanes using phosphazene superbases to produce in high yield a low resin content, solvent free, and trace metal free monomer suitable for use in microelectronic, biological, and medical applications involving polymerization, grafting, and alloying.

The invention discloses a method for preparing fatty acid amide dimethyl tertiary amine compounds from solid superbase, and belongs to the field of organic chemical synthesis. According to the method,one or several kinds of fatty acids and N,N-dimethylamino compounds are used as raw materials; solid superbase with the advantages of high catalysis activity, cyclic use and environment-friendly effect is used as a catalyst for preparing the fatty acid amide dimethyl tertiary amine compounds. The method has the advantages that the operation is simple and convenient; the post treatment is simple;the reaction conditions are mild; the yield is high; the method belongs to a green novel method for synthesizing the fatty acid amide dimethyl tertiary amine compounds.

The invention discloses a preparation method of mild reaction type aldehyde ketone resin. The mild reaction type aldehyde ketone resin is prepared by adding a quantitative superbase catalyst into mixed liquid of aldehyde and ketone compounds under the condition of stirring at normal temperature, wherein the reaction process is mild and stable, so the defect that the traditional furfuraldehyde acetone system is easy to implode is overcome. The invention also discloses an application of the mild reaction type aldehyde ketone resin to preparation of an aldehyde ketone resin modified epoxy grouting material. The prepared grouting material can completely exert the flexibility of the aldehyde ketone resin, solves the problem that epoxy resin has high brittleness, can further improve excellent mechanical properties, adhesive property, ageing resistance and corrosion resistance of the epoxy resin, and also has the characteristics of low toxicity, environmental friendliness and the like. In addition, according to the preparation method, the aldehyde ketone resin is prepared in advance and has higher viscosity and thixotropism when being used together with fillers, so the construction process is simple and the aldehyde ketone resin can be applied to concrete surface corrosion of basic facilities such as bridges and ports, restoration of cultural relic, water and seepage prevention, reinforcement and strengthening of buildings and the like.

Methods for preparation of a unique superbase catalyst consisting of mixture of polyether alcohol and base in which a polyether alcohol superbase is produced by the removal of water or alcohol at elevated temperatures to form a polyether alcohol alkoxide. The superbase catalyst is useful in, but not limited to, quantitative isomerization of alkyl esters of vegetable oils containing interrupted double bond systems to yield esters with conjugated double bond systems, alkylations, arylations, acylations, aminations, condensations, eliminations, isomerizations, rearrangements, and Wittig reactions.

The invention discloses a process for extracting triacontanol from natural beeswax by microwave and solid superalkali catalysis. Firstly, a certain quality of natural beeswax is placed in a container, and methanol is added at a solid-to-liquid ratio of 1:50. Then add KF / γ‑Al in an amount of 30% of the natural beeswax quality 2 o 3 Solid strong alkaline agent, the reaction of several grams of natural beeswax is heated to reflux for 10 minutes under the microwave power of 200-300W, and the reaction of kilograms of natural beeswax is refluxed and heated for 30 minutes under the microwave power of 6 to 9kw, and it is carried out under microwave catalysis Transesterification reaction to obtain a mixture of triacontanol+methanol+methyl oleate+catalyst; filter to recover KF / γ‑Al 2 o 3 Solid strong base agent, to obtain triacontanol+methanol+methyl oleate mixture; then rotary evaporation, recovery of methanol, to obtain triacontanol+methyl oleate mixture; and then recrystallization to obtain triacontanol . Compared with traditional catalysts such as sodium hydroxide and potassium hydroxide under microwave conditions, the present invention forms a high-efficiency, environment-friendly and low-cost production process for preparing triacontanol using natural beeswax as raw material.

A mass spectrometer is disclosed wherein highly charged fragment ions resulting from Electron Transfer Dissociation fragmentation of parent ions are reduced in charge state within a Proton Transfer Reaction cell by reacting the fragment ions with a neutral superbase reagent gas such as Octahydropyrimidolazepine.

A synthesis process for polyhedral oligomeric silsesquioxanes that produces in high yield a low resin content, solvent free, and trace metal free monomer suitable for use in microelectronic applications. POSS silanols are reacted with a silane coupling agent in the presence of a solvent and a superbase.

The invention belongs to the field of industrial catalysis, and in particular relates to a catalyst for producing propynyl alcohol by cracking butynediol and a preparation method thereof. A catalyst for producing propynyl alcohol by cracking butynediol. The catalyst is a solid superbase made of a carrier loaded with a main active component and a coagent. The main active component is one or more of an alkali metal and an alkaline earth metal. Various, the coagent is copper and / or bismuth. It can directly catalyze the cracking of butynediol in an aqueous solution of butynediol to prepare propynyl alcohol. The invention also provides the technological conditions for using the catalyst to catalyze the cracking of butynediol, which can increase the conversion rate of butynediol to 46.3% and the selectivity of propynyl alcohol to 57.4% in the tubular reaction.

The invention discloses a highly active organic-inorganic hybrid solid superbase catalyst and a preparation method thereof. The catalyst comprises organic potassium metal clusters and a porous carrier, and the characteristic molecular formula is: KnR / MO, wherein K is an alkali metal Potassium, n is the degree of polymerization n=1-6, R is an alkyl group containing C6-C8 carbon atoms, and MO is a porous carrier. The invention loads organic potassium on a porous carrier in low-carbon straight-chain alkanes near the boiling point of potassium to form organic potassium cluster solid superbase. The solid superbase has extremely high activity and selectivity for base-catalyzed reactions such as solvent-free Tishchenko reaction and olefin isomerization. And without activation, it can be directly used to catalyze organic reactions. The method does not pollute the environment, is simple to operate, does not require high temperature and high vacuum, and the hexane can be recovered and recycled. This organic-inorganic composite catalytic material has great application prospects and economic value.