Chemistry of inorganic compounds – With additive – Including corrosion inhibitor
Patent
1986-12-16
1990-01-02
Doll, John
Chemistry of inorganic compounds
With additive
Including corrosion inhibitor
423467, C01B 1746
Patent
active
048911968
ABSTRACT:
The present invention relates to an improved chlorosulfonic acid (CSA) composition useful in making a high clarity sulfated salt of a C.sub.8-22 natural or synthetic predominantly straight chain aliphatic primary alcohol to a process for making the improved CSA composition and to improved CSA composition by the process.
The CSA contains less than 1 weight percent sulfuric acid, less than 0.47 weight percent sulfur trioxide, less than 5 parts per million iron and less than 0.5 relative percent pyrosulfuryl chloride.
The CSA process involves contacting the hydrogen chloride and sulfur trioxide at the point of reaction with from 0.75 to 1.5 weight percent sulfuric acid based on the stoichiometric rate of CSA produced from the sulfur trioxide with an excess of hydrogen chloride.
REFERENCES:
patent: 1422335 (1922-07-01), Briggs
patent: 2187244 (1940-01-01), Mills
patent: 2311619 (1943-02-01), Laury
patent: 2377642 (1945-06-01), Mooney et al.
patent: 3133946 (1964-05-01), Maurer
patent: 3234256 (1966-02-01), Kaplan
patent: 3277145 (1966-10-01), Shull et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Ed., vol. 5, pp. 873-880.
Sosis et al., "Sulfation of Synthetic Linear Primary Alcohols with Chlorosulfonic Acid", Journal of Amer. Oil Chem. Society, 47, pp. 229-232 (1970).
Chemical Abstract 126,731, vol. 85, p. 182 (1976).
Brauer, Handbook of Preparative Inorganic Chemistry, 2nd ed., vol. 1, pp. 385-386, Academic Press, 1963.
Carlson Norman A.
Evers Glenn R.
Doll John
E. I. Du Pont de Nemours and Company
Krukiel Charles E.
Russel Jeffrey Edwin
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