摘要:
A preservative for organic substances comprises a powdery mixture of organic carboxylic acid, especially propionic acid, and a solid dispergent having a particle size below 10 microns such that the liquide constitutes 50 to 90 percent of the mixture and is adsorbent upon solid. The powder may be brought into direct contact with, for example, vegetable matter to be treated.
摘要:
A METHOD OF FORMING A NITRATE OR NITRITE BY CONTACTING A MIXTURE OF NITROGEN AND OXYGEN WITH A PERBROMATE, BROMATE, BROMITE OR HYPOBROMITE IN THE PRESENCE OF IONIZING RADIATION.
摘要:
A process for recovering a substantial portion of nitric acid and metal ions from an acidic waste liquid produced in the process for the production of adipic acid by oxidizing cyclohexanone or cyclohexanol in a liquid phase, which comprises supplying said waste liquid to an electrodialysis apparatus including one or more electrodializers to recover said nitric acid and metal ions in a recovering liquid of a member selected from water and a diluted aqueous nitric acid.
摘要:
A method for producing chlorine and alkali metal nitrate which comprises reacting nitrogen peroxide, water and oxygen in the presence of an aqueous nitric acid containing a nitrate of a group Ia metal having an atomic weight at least as heavy as potassium and reacting a chloride of alkali metal with the resulting solution.
摘要:
REMOVAL OF PRACTICALLY ALL THE CHLORINE CONTENT FROM NITRIC ACID SOLUTIONS BY ADDING A SMALL QUANTITY OF DINITROGEN TETROXIDE AFTER THE BULK OF THE NITROSYL CHLORIDE HAS BEEN DRIVEN OFF. THUS, SEVERE CORROSION PROBLEMS ARE AVOIDED.