Method for regulating water concentration in a process stream

Details Method for regulating water concentration in a process stream Method for regulating water concentration in a process stream

2005-02-22

2005-02-22

Nguyen, Ngoc-Yen (Department: 1754)

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

C423S483000, C073S061480

Reexamination Certificate

active

06858198

ABSTRACT:
Provided is a method for regulating the concentration of water in the acid feed stream in a process for the production of HF by the reaction with a fluorine containing material, the method comprising:(a) providing an acid feed stream comprising bound water and free water;(b) estimating the concentration of bound water and free water in the acid feed stream by providing a probe in said feed stream; and(c) adjusting the concentration of free water in said process stream based on said estimating step.

REFERENCES:
patent: 3167391 (1965-01-01), Swinehart
patent: 4292289 (1981-09-01), Cannon et al.
patent: 5271918 (1993-12-01), Patterson et al.
patent: 5851837 (1998-12-01), Stokes et al.
patent: 6350426 (2002-02-01), Sota et al.
patent: 0 990898 (1997-03-01), None
patent: 05-026853 (1993-02-01), None
patent: WO 9735187 (1997-09-01), None
“Chemical Abstracts”, vol. 82 (1975) p. 726 (67764p) ASI Applied Systems Copyright 1998, “Sampling Technology for FTIR Chemical Monitoring and Process Analysis,” (4 pages), no month.
L. Marangoni & R. Madiolo of Montedison SpA, Porto Marghera, Italy from La Chimica e 1'Industria 62/3 (pp. 189-192) 1980 (Translation from Italian), “Procedure For the Determination Of The Composition of HF/H2S04/FS03H/H20 Solutions”, no month.
E. Katherine Hemsley, R.H. Wilson and P.S. Belton, “Potential of Fourier Transform Infrared Spectroscopy and Fiber Optics for Process Control,”J. Agric. Food Chem., vol. 40 (1992), pp. 435-438, no month.
R.A. Heikka, K.T, Immonen, P.O. Minkkinen, E.Y.O. Paatero, T.O. Salmi, “Determination of acid value, hydroxyl value and water content in reactions between dicarboxylic acids and diols using near-infrared spectroscopy and non-linear partial least squares regression,”Analytica Chimica Acta349 (1997 Elsevier Science B.V.), pp. 287-294, no month.
B.B. Randolph, A.D. Eastman, R.L. Heald, “Near InfraredSpectroscopy for On-Line Analysis of Alkylation Process Acids,” pp. 291-293, no month.
R.K. Bade, K.L. Gallaher, S.B. Hunt, G.L. Combs, E.L. Kesselhuth, Abstract: “The On-Line Determination of Total Olefins in Gasoline by Process Gas Chromatography and Fourier Transfor Infrared Spectroscopy,” ISA 1996, Paper #96-004, pp. 33-42, no month.

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