5 results about "Acid anion" patented technology

Provided is an amine separation method that includes separating an amine through chromatography using a stationary phase including a ligand having a crown ether-like cyclic structure and being supported on a carrier; and a mobile phase containing a salt of a cation and an acid anion at a concentration of 0.2 mM or more and 50.0 mM or less and containing a solvent having a water content of 50 vol. % or less.

The invention provides a preparation method of a high-purity key photoacid generator PAG intermediate for a semiconductor, namely a triaryl hydroxyl sulfonium compound. According to the method, triaryl sulfonium salt represented by a general formula (I) is taken as a raw material: [R1-R2-R3-S] < + > X <->, R1, R2 and R3 are independently selected from phenyl or substituted phenyl, and substituent groups are selected from methyl, tertiary butyl, halogen, C1-C6 alkyl, phenyl and the like; x <-> is selected from acidic anions such as trifluoromethanesulfonate, chloride ions, bromide ions, p-toluenesulfonate and the like. According to the method, mixed alkaline anion exchange resin is used as a catalyst, and circular reaction is performed through a continuous device filled with cation exchange resin, so that efficient preparation of the DUV-grade triaryl hydroxyl sulfonium compound is realized.

The application provides a high-efficiency synergic driving artificial muscle fiber pair, a driving method and application thereof. The artificial muscle fiber pair comprises an artificial muscle fiber as a working electrode, an artificial muscle fiber as a counter electrode and an organic electrolyte; the material and structural parameters of the two artificial muscle fibers are consistent; and the electrolyte is selected from a salt composed of a full alkyl ammonium cation and a perfluoroboric acid anion and / or a perfluorophosphoric acid anion. The application uses the anion-cation salt with symmetric driving properties as the electrolyte, uses two artificial muscle fibers with consistent material parameters as the positive electrode and the negative electrode, and uses the synchronous driving electrochemical fiber pair system, so that the synchronous contraction is realized under the positive and negative potentials, the positive and negative electrodes are active working units in the whole driving cycle, the problem of "counter electrode idling" is completely overcome, the overall output work and energy conversion efficiency are greatly improved, the driving asynchronization or mechanical stress accumulation is effectively avoided, and the cycle stability and response consistency are improved.

The application pertains to processes for producing alkali hydroxides or alkali sulfites using large molecular weight acid intermediates. Generally, a component comprising an alkaline-earth cation—small molecular weight acid anion may be reacted with a component comprising an alkali sulfate to form a component comprising an alkali cation—small molecular weight acid anion and a component comprising an alkaline-earth sulfate. A series of additional steps results in forming a component comprising an alkali hydroxide, or an alkali carbonate, or an alkali bicarbonate, or any combination thereof.

The invention belongs to the technical field of chemical sensing and detection, and discloses preparation of a multi-component rare earth metal-organic framework and application of the multi-component rare earth metal-organic framework in heavy water recognition, the molecular formula of the multi-component rare earth metal-organic framework is {[Eu (BETC) 0.5 (BDC-OH) 0.5 (H2O) 2]. MH2O} n, m is 0-6, n is any natural number, BETC is 1, 2, 4, 5-benzene tetracarboxylic acid anion, and m is 0-6. According to the present invention, the multi-component rare earth metal-organic framework can perform ultra-sensitive detection on trace H2O in D2O, the detection limit is as low as 0.39%, and the wide-range quantitative detection can be achieved;