Compositions – Electrically conductive or emissive compositions – Metal compound containing
Patent
1973-10-26
1976-04-27
Sebastian, Leland A.
Compositions
Electrically conductive or emissive compositions
Metal compound containing
252173, 252532, 252535, 252539, 252540, 252546, 252551, 252554, 252558, 252559, 252DIG11, 252DIG15, C10
Patent
active
039533794
ABSTRACT:
Gelation and/or precipitation which normally result from the admixing of alkali metal silicates and alkali metal hydroxyalkyl iminodiacetates in aqueous media at elevated temperatures are prevented by raising the pH of the aqueous solution of alkali metal hydroxyalkyl iminodiacetate to 12.5 or more before admixing with the alkali metal silicate. The process described makes a homogeneous mixture of the components and allows the production of a crutcher mix which does not block lines or spray nozzle orifices in the production of spray dried detergent compositions. The preferred silicate is sodium silicate of an Na.sub.2 O:SiO.sub.2 ratio of 1:2 to 1:2.4, the preferred iminodiacetate is disodium 2-hydroxyethyl iminodiacetate and a preferred compound for adjusting the pH is sodium carbonate, all of which are useful in the production of built non-phosphate heavy duty synthetic organic detergent compositions.
REFERENCES:
patent: 3332880 (1967-07-01), Kessler
patent: 3726797 (1973-04-01), Sundby et al.
patent: 3741911 (1973-06-01), Shane
Blumenkopf Norman
Colgate-Palmolive Company
Grill Murray M.
Parr E. Suzanne
Sebastian Leland A.
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