Back to results
US 10,836,636 B2Granted
Sodium hypochlorite compositions
AssigneeOlin Corporation
InventorsDavid W. Cawlfield, Randall Taylor Morris, Richard Carl Ness, Leonard L. Scott, Sanders Harrison Moore, Awuri Priye Asuru
Life of this patent
Estimating the term…
Abstract
The present invention provides compositions comprising comminuted sodium hypochlorite pentahydrate crystals with an average length-to-diameter ratio of less than about 20:1, and a mother liquor saturated in sodium hypochlorite, which has excess alkalinity and/or one or more additional alkali or alkali earth metal salts. Processes for preparing these compositions will be presented.
Claims19
An aqueous sodium hypochlorite slurry composition, comprising:
- comminuted sodium hypochlorite pentahydrate crystals with an average length-to-diameter ratio of less than about 20:1, in an aqueous mother liquor saturated in sodium hypochlorite and further comprising one or more additional alkali salts, wherein the additional alkali salt is selected from the group consisting of sodium fluoride, sodium chlorate, sodium perchlorate, sodium chromate, sodium permanganate, sodium nitrate, sodium sulfate, sodium molybdate, sodium tetraborate, sodium phosphate, sodium metasilicate;
- and mixtures thereof;
- wherein the composition comprises between 25 weight % and about 45 weight % of sodium hypochlorite;
- wherein the composition comprises between 1 weight % and about 10 weight % of the at least one additional alkali-salts;
- wherein the composition further comprises between 0.01 weight % and about 3 weight % of at least one base wherein the pH of the composition is between a pH of 11 to 14;
- and wherein the at least one base comprises sodium hydroxide, sodium carbonate, or mixtures thereof.
3 more elements
An aqueous sodium hypochlorite slurry composition, comprising:
- comminuted sodium hypochlorite pentahydrate crystals with an average length-to-diameter ratio of less than about 20:1, in an aqueous mother liquor saturated in sodium hypochlorite and further comprising one or more additional alkali salts, wherein the additional alkali salt is selected from the group consisting of sodium fluoride, sodium chlorate, sodium perchlorate, sodium chromate, sodium permanganate, sodium nitrate, sodium sulfate, sodium molybdate, sodium phosphate, and mixtures thereof;
- wherein the composition comprises between 25 weight % and about 45 weight % of sodium hypochlorite;
- wherein the composition comprises between 1 weight % and about 10 weight % of the at least one additional alkali-salts;
- wherein the composition further comprises between 0.01 weight % and about 3 weight % of at least one base comprising at least one of sodium hydroxide, sodium carbonate, sodium metasilicate, or sodium tetraborate, wherein the pH of the composition is between a pH of 11 to 14.
1 more element
Dependencies are inferred from the claim text.