35 results about "ALCOHOL/FLUORIDE" patented technology

A process for reducing the level of perfluoroalkanoic acids, perfluoroalkanoic esters, and perfluoroalkyliodides in fluorinated alcohols comprising heating a fluorinated alcohol, or mixtures thereof, containing said acids, esters, or iodides to a temperature of at least 175° C. in the presence of water and a base additive is disclosed.

This invention provides a method for purifying HFO-1234yf by removing HF from a mixture of HFO-1234yf and HF under simple and economically advantageous conditions. According to the present invention, this is a purification method for 2,3,3,3-tetrafluoropropene, (1) the purification method comprising the step of subjecting a mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride to extractive distillation in a distillation column A using an extractant, thereby obtaining a fraction I that contains 2,3,3,3-tetrafluoropropene and has a lower ratio of hydrogen fluoride to 2,3,3,3-tetrafluoropropene than that of the mixture, while obtaining a fraction II that contains hydrogen fluoride and has a lower ratio of 2,3,3,3-tetrafluoropropene to hydrogen fluoride than that of the mixture; (2) the extractant comprising at least one member selected from the group consisting of: (i) alcohols represented by ROH, wherein R is a C1-5 alkyl group, (ii) ethers represented by ROR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (iii) fluorinated alcohols represented by RfOH, wherein Rf is a C1-3 fluoroalkyl group, (iv) ketones represented by RCOR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (v) esters represented by RCOOR′, wherein R and R′ are the same or different, and each is a C1-4 alkyl group, (vi) polyols represented by R(OH)n, wherein R is a C1-4 alkyl group, and n is an integer of 2 to 3, and (vii) ethylene glycols represented by R1O(CH2CH2O)nR2, wherein R1 and R2 are the same or different, and each is hydrogen or a C1-4 alkyl group, and n is an integer of 1 to 3.

Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2 and HOCHRCF(CF(CF3)2)CHFCF3, HOCHRCF(CF2CF3)CH(CF3)2 and HOCHRC(CF3)2CHFCF2CF3 are made by heating a mixture of a borate of the formula (RCH2O)3B, wherein R═H or a C1 to C7 alkyl group, with perfluoro-4-methyl-2-pentene or perfluoro-2-methyl-2-pentene and a free-radical initiator to form a mixture of borates, optionally separating the mixture of borates from any reactants, solvents, and by-products; hydrolyzing the mixture of borates to form a hydrolysis product mixture; and separating the alcohols from the hydrolysis product mixture.

A process for producing a high-purity fluorinated alcohol in a satisfactory purification yield. The process comprises reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an alkyl peroxide to produce a fluorinated alcohol, wherein the liquid reaction mixture obtained after completion of the reaction is distilled in the presence of both water and HF to separate the mixture into a fraction containing an alcohol derived from the peroxide and a bottom containing the fluorinated alcohol and the bottom is purified to recover the fluorinated alcohol.

The invention provides a hydrophobic surface coating and a preparation method thereof, and the hydrophobic surface coating is formed on the surface of a substrate through a plasma enhanced chemical vapor deposition method by taking one or more fluorinated alcohol compounds as reaction gas raw materials, so as to improve the hydrophobicity, chemical corrosion resistance and weather resistance of the surface of the substrate.

To provide a water / oil repellent agent and a water / oil repellent composition which are capable of imparting sufficient water / oil repellency to the surface of an article and which have low environmental impact. One comprising a reaction product obtained by reacting a fluorinated alcohol or amine having a polyfluoroalkyl moiety having at most 6 carbon atoms with a polyisocyanate compound, which is, when applied to an article, capable of imparting sufficient water / oil repellency, while presenting little environmental impact. When applied to an article, the water / oil repellent composition of the present invention is capable of imparting a high quality water / oil repellency to the article.

A process for producing a high-purity fluorinated alcohol in a good purification yield, is provided.In a process for producing a fluorinated alcohol, which comprises reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an alkyl peroxide, the reaction liquid after completion of the reaction is distilled in the presence of water and HF to separate it into a fraction containing an alcohol derived from the alkyl peroxide and a bottom liquid containing the fluorinated alcohol, and then, the bottom liquid is purified to recover the fluorinated alcohol.

A compound such as Alq3 accumulated on the inner surface of a chamber at the time of organic EL device production and wasted is recovered and recycled, whereby the production cost is reduced. The inner surface of a chamber or the surface of components in the chamber to which a compound such as Alq3 has adhered is cleaned with a fluorinated alcohol such as 2,2,3,3,4,4,5,5-octafluoropentanol to recover Alq3.

The present invention is directed to a process for preparation of fluorinated alcohols of Formula (I)RfCH2CH2OH  (I)by contacting a fluorinated iodide with an alkyl vinyl ether in the presence of an initiator and a base to generate an intermediate hemi-acetal or aldehyde or a mixture thereof, followed by hydrogenation of the hemi-acetal of Formula (II)RfCH2CH(OCxH2x+1)m(OH)p  (II)or aldehyde of Formula (III)RfCH2CHO  (III)or a mixture thereof, to yield a compound of Formula (I).

A protective film-forming composition comprising a polymer comprising fluorinated alcohol units of the structure: —C(CF3)2OR1 wherein R1 is H or a monovalent hydrocarbon group and having a Mw of 1,000-500,000 is applied onto a resist film to form a protective film thereon. The protective film-forming composition has high water repellent and water slip performance. The protective film exhibits barrier properties to water and prevents any resist components from being leached out in water.

The application discloses a method for preparing anisaldehyde by catalytic liquid-phase selective oxidation. In this method, the material containing fluorinated alcohol compounds and p-methoxytoluene is contacted with a catalyst in the presence of an oxygen source to react to obtain anisaldehyde; wherein, air or oxygen is used as an oxygen source, and Nitrogen-doped carbon-supported metals were used as catalysts, and fluorinated alcohols were used as solvents to catalyze the liquid-phase selective oxidation of p-methoxytoluene to produce anisaldehyde. The method has the advantages of mild reaction conditions, high raw material conversion rate and product selectivity, recyclable catalyst, etc. The conversion rate of p-methoxytoluene can reach more than 70%, and the selectivity of anisaldehyde can reach more than 90%.

Lanthanide fluorinated alkoxide derivatives can be synthesized from the alcoholysis reaction of the lanthanide bis-trimethylsilyl amide and an excess amount of hexafluoro iso-propanol. Nanoparticles can be formed from the lanthanide fluorinated alkoxide derivatives by a solvothermal or solution precipitation process.

A composition having excellent dischargeability by an ink jet method and reduced clogging of an ink jet apparatus is provided. The composition contains a fluorinated alcohol A represented by the formula (1) and having a boiling point of 50° C. or more and less than 150° C., a fluorinated alcohol B represented by the formula (1) and having a boiling point of 150° C. or more and less than 300° C., and a charge transportable compound, in which the ratio rate of the fluorinated alcohol B with respect to 100 parts by mass of the sum of the fluorinated alcohol A and the fluorinated alcohol B is 10 parts by mass to 90 parts by mass:CnFH2nF+1-mFFnFOH   (1)In formula (1), nF is an integer of 1 to 12 and mF is an integer of 1 to 25, provided that 2nF+1≥mF.

Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2 and HOCHRCF(CF(CF3)2)CHFCF3, HOCHRCF(CF2CF3)CH(CF3)2 and HOCHRC(CF3)2CHFCF2CF3 are made by heating a mixture of a borate of the formula (RCH2O)3B, wherein R═H or a C1 to C7 alkyl group, with perfluoro-4-methyl-2-pentene or perfluoro-2-methyl-2-pentene and a free-radical initiator to form a mixture of borates, optionally separating the mixture of borates from any reactants, solvents, and by-products; hydrolyzing the mixture of borates to form a hydrolysis product mixture; and separating the alcohols from the hydrolysis product mixture.

The invention discloses a synthetic method of a fluorine-containing secondary amine compound. Pentamethylcyclopentadienyl iridium chloride dimer is used as a metal catalyst, fluoroalkyl comes from fluorinated alcohol, alkali is used as a co-catalyst, and the fluorine-containing secondary amine is prepared via the following step: primary amine reacts with the fluorinated alcohol under the action of the transition metal iridium catalyst and the alkali in an organic solvent to obtain the fluorine-containing secondary amine compound. The method overcomes the defects in the prior art that the fluorine-containing alkylating agent is high in toxicity and instable and needs to be prepared in advance, the reaction operation is complex, the steps are fussy and the like, and can obtain considerable yield. The adopted fluorinated alcohol is readily available, stable in chemical property and low in toxicity. The method is simple in reaction, has very high atom economy and step economy, and is energy-saving, environment-friendly and simple in operation. By adopting [Cp*IrCl2]2 as the catalyst, ligands are not needed, and the system is easy to realize.

The invention provides a hydrophobic surface coating and a preparation method thereof, wherein the hydrophobic surface coating uses one or more fluorinated alcohol compounds as reaction gas raw materials, and is formed on the surface of a substrate by a plasma-enhanced chemical vapor deposition method , the fluorinated alcohol compound has the structural formula: OH‑C n h m f 2n+1‑m , wherein n>m+1, to improve the hydrophobicity of the substrate surface, the hydrophobic surface coating is more suitable for glass substrates.