摘要:
Disclosed are improved fluorination processes and fluorine-containing compositions which involve introducing to one or more fluorination process compositions a water reactive agent in an amount and under conditions effective to decrease the amount of water in that composition. The water reactive agent is preferably introduced to the fluorination reaction process at a location proximate to the site of the fluorination reaction, or upstream of the fluorination reaction, in amounts and under conditions effective to produce a relatively lower concentration of water in the composition, and preferably throughout the fluorination process.
摘要:
A method comprising etching a material under plasma etching conditions using an etching composition which has a GWP of no greater than about 3000 and which comprises at least one etchant compound having a formula selected from the group consisting of F—CO—[(CR1R2)m—CO]n—F and F—CO—R3—CO—F, and wherein: m=0, 1, 2, 3, 4, or 5; n=1; R1 & R2 represent H, F or CxHyFz; wherein: x=1 or 2; and y+z=2x+1; R3 represents CR4═CR5, R6R7C═C or C≡C; wherein: R4-7 represent H, F, or CxHyFz; wherein: x=1 or 2; and y+z=2x+1; and also including the cleaning of a surface by use of an etchant compound, and further including an etching composition which includes said etchant compound and also an etchant-modifier.
摘要翻译:一种方法,包括使用GWP不大于约3000的蚀刻组合物在等离子体蚀刻条件下蚀刻材料,并且其包含至少一种具有选自F-CO - [(CR 1) > R 2)m-CO] n F和F-CO-R 3 -CO-F,并且其中:m = 0,1,2,3,4或5; n = 1; R 1 >&R <2>表示H,F或CxHyFz; 其中:x = 1或2; andy + z = 2x + 1; R 3表示CR 4 = CR 5,R 6 R 7 C = C或C = C; 其中:R 4-7表示H,F或CxHyFz; 其中:x = 1或2; andy + z = 2x + 1;并且还包括通过使用蚀刻剂化合物清洁表面,并且还包括包括所述蚀刻剂化合物和蚀刻剂改性剂的蚀刻组合物。
摘要:
A method of etching comprising subjecting a material under plasma etching conditions to an etching composition comprising at least an etchant compound having the formula C.sub.X H.sub.C F.sub.Zwherein: x=3, 4 or 5;2x.gtoreq.z.gtoreq.y;and y+z=2x+2; andfurther including an etching composition which includes said etchant compound and a second material different from the etchant compound that enhances or modifies plasma etching.
摘要翻译:一种蚀刻方法,包括在等离子体蚀刻条件下对材料进行处理,所述蚀刻组合物至少包含具有式CXHCFZ的蚀刻剂化合物,其中:x = 3,4或5; 2x> / = z> / = y; y + z = 2x + 2; 并且还包括包含所述蚀刻剂化合物和不同于蚀刻剂化合物的第二材料的蚀刻组合物,其增强或改性等离子体蚀刻。
摘要:
A method of etching comprising subjecting a material under plasma etching conditions to an etching composition comprising at least an etchant compound having the formula CXHCFZ wherein: x=3, 4 or 5; 2x≧z≧y; and y+z=2x+2; and further including an etching composition which includes said etchant compound and a second material different from the etchant compound that enhances or modifies plasma etching.
摘要:
Processes and systems for the production of phosphorus pentafluoride (PF5) through continuous fluorination of phosphorus are provided herein. A phosphorus feed stream and a fluorine feed stream are provided to a reactor, wherein they are reacted in a gas-gas or liquid-gas reaction to produce phosphorus pentafluoride (PF5). The phosphorus feed can be derived from white phosphorus or yellow phosphorus, and can be provided to the reactor as a liquid or a vapor. The fluorine can be provided to the reactor as a vapor, and preferably comprises elemental fluorine gas.
摘要:
Provided are azeotropic and azeotrope-like compositions of PF5 and HF, and methods of making such compositions. Such azeotropic and azeotrope-like compositions can be used, for example, in processes for producing LiPF6.
摘要:
Processes and systems for the production of phosphorus pentafluoride (PF5) through continuous fluorination of phosphorus are provided herein. A phosphorus feed stream and a fluorine feed stream are provided to a reactor, wherein they are reacted in a gas-gas or liquid-gas reaction to produce phosphorus pentafluoride (PF5). The phosphorus feed can be derived from white phosphorus or yellow phosphorus, and can be provided to the reactor as a liquid or a vapor. The fluorine can be provided to the reactor as a vapor, and preferably comprises elemental fluorine gas.
摘要:
Provided are novel azeotrope-like compositions of SF6 and N2O, as well as methods of using the same. Also provided are methods of using SF6 compositions, including azeotrope-like compositions, including a method for suppressing an electric arc or corona discharge and a method for flame suppression. Further provided are electrical devices using such SF6 compositions as a dielectric insulating gas and rigid closed-cell foams having such SF6 compositions within the cells, wherein the foam is both thermally and electrically insulative.
摘要:
The present invention provides compositions that are intimate mixtures of hydrogen fluoride and a polyacrylate-polyacrylamide cross-linked copolymer. The compositions of the invention are less hazardous and, therefore, more conveniently stored, transported, and handled in comparison to pure hydrogen fluoride. Further, the hydrogen fluoride may be readily recovered from the compositions of the invention for use.
摘要:
A process and system for adsorption purification of NF3 wherein a crude product containing NF3 and impurities such as CF4 is brought into contact with a polyacrylonitrile-based carbon molecular sieve so that at least a portion of one or more impurities are adsorbed by the sieve without a significant adsorption of the NF3.
摘要翻译:一种用于NF 3的吸附净化的方法和系统,其中含有NF 3的粗产物和诸如CF 4的杂质与一种 基于聚丙烯腈的碳分子筛,使得至少一部分一种或多种杂质被筛子吸附,而不会显着吸附NF 3 N 3。