Neutralization of organic sulfuric or sulfonic detergent acid to

Details Neutralization of organic sulfuric or sulfonic detergent acid to Neutralization of organic sulfuric or sulfonic detergent acid to

1983-09-22

1985-10-01

Kight, John

Compositions

Dust suppressants for bulk materials, or processes of...

252549, 252184, 260459R, 422137, 422229, C07C14104

Patent

active

045444935

ABSTRACT:
A process for neutralizing an organic sulfuric or sulfonic detergent acid, e.g., lauryl sulfuric acid or mixture of such acids, in liquid state, with a liquid solution or slurry of neutralizing agent of a low moisture content is conducted in a wiped film neutralizing reactor wherein a film of the organic acid(s) and neutralizing agent(s) is formed on an internal wall of the reactor, which wall (with the film) is continuously wiped during the neutralization reaction by a wall scraper or a plurality of scrapers which also agitate the reactants, whereby there is produced a pumpable aqueous slurry, having a high concentration of the detergent salt solids which is above a gel region which prevents the concentration of such detergents made by other processes that produce lower detergent concentrations. During the reaction, which is usually preferably conducted under vacuum, the heat generated is removed, usually by evaporation of water, so as to maintain a desirable temperature for the neutralization.
Also within the invention are processes wherein the wiped film neutralizing reactor is employed in conjunction with a film reactor for sulfating or sulfonating organic material, such as lauryl alcohol, to the corresponding detergent acid and soon after production thereof neutralizing such acid in the wiped film neutralizing reactor as well as the apparatus for practicing these processes.

REFERENCES:
patent: 2687420 (1954-08-01), Brady
patent: 2939770 (1960-06-01), Schwartzkopff et al.
patent: 3200140 (1965-08-01), Sowerby
patent: 3473896 (1969-10-01), Halder et al.
patent: 4322367 (1982-03-01), Silvis

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