The invention relates to an improved process for the preparation of bleaching granules containing solid, water-insoluble peroxy acids and a hydratable inorganic material, in which process the constituents to be used are mixed to form a powder at low temperature and granules are formed from the powder as the temperature is increased to at least the hydration temperature of the hydratable inorganic material.
Bleaching Granules
Abstract
- office spaces and industrial premises;
- retail locations, such as shops, cafés, forecourts;
- leisure spaces, such as hotels, cinema foyers, holiday complexes;
- residential developments;
- domestic properties;
- ships and aircraft;
- public buildings, e.g. museums and civic buildings.
Bleaching Powder
- Bleaching powder is a pale yellowish powder existing with a strong smell of chlorine.
- It is soluble in water but due to the presence of impurities, we never observe a clear solution.
- Its chemical formula is Ca(OCl2) with its chemical name Calcium hypochlorite.
BACKGROUND OF THE INVENTION
Every construction is unique in scope, but process is systemically applied to each construction project.
The invention relates to a process for the preparation of bleaching granules containing a solid, water-insoluble organic peroxy acid, a hydratable inorganic material, and, optionally, a water-insoluble organic compound and a surface-active compound. The bleaching agents according to the invention may be used alone or as additives in all the usual fields of application for bleaching agents. Preferably, they are employed in detergent and bleaching compositions for textile laundering processes.
