Continuous process for the production of a compact, coarse sodiu

Details Continuous process for the production of a compact, coarse sodiu Continuous process for the production of a compact, coarse sodiu

1977-09-27

1978-09-26

Thomas, Earl C.

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

C01B 1510

Patent

active

041170970

ABSTRACT:
A compact, abrasion resistant sodium percarbonate is produced continuously by reacting sodium carbonate and hydrogen peroxide in the presence of sodium percarbonate inocculant seeds, sodium chloride, an active oxygen stabilizer and sodium hexametaphosphate at 10-20.degree. C, the process comprises feeding into the preliminary inocculant and aqueous hydrogen peroxide solution containing an active oxygen stabilizer and simultaneously either (1) a filtered solution saturated in sodium carbonate and containing 40-100 grams per liter of sodium percarbonate, 0.1-1.0 gram of sodium hexametaphosphate per liter, 100-200 grams of sodium chloride per liter and an active oxygen stabilizer or (2) a mother liquor containing 40-100 grams of sodium percarbonate per liter, 0.1-1.0 gram of sodium hexametaphosphate per liter, 100-200 grams of sodium chloride per liter and an active oxygen stabilizer, with the proviso that when the mother liquor is employed there is also fed into the preliminary inocculant such an amount of calcined soda that no sodium carbonate decahydrate forms as a solid phase in the preliminary inocculant, the amount of hydrogen peroxide employed being approximately equivalent to the amount of dissolved sodium carbonate for reaction, the temperature is maintained constant during the entire process of precipitating sodium percarbonate, the supersaturation initially formed upon addition of the hydrogen peroxide being reduced by the precipitation of the sodium percarbonate, the precipitated sodium per carbonate is separated and dried.

REFERENCES:
patent: 2541733 (1951-02-01), Young

Affiliated with

Also associated with

Rating

Continuous process for the production of a compact, coarse sodiu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous process for the production of a compact, coarse sodiu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous process for the production of a compact, coarse sodiu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2090036