BRPI0700896A -
manufacturing process of a so2-based chemical reducing agent and a so2-based chemical reducing agent
- Google Patents
manufacturing process of a so2-based chemical reducing agent and a so2-based chemical reducing agent
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Publication number
BRPI0700896A
BRPI0700896ABRPI0700896ABRPI0700896ABR PI0700896 ABRPI0700896 ABR PI0700896ABR PI0700896 ABRPI0700896 ABR PI0700896ABR PI0700896 ABRPI0700896 ABR PI0700896A
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Application filed by Amonex Do Brasil Ind E Com LtdfiledCriticalAmonex Do Brasil Ind E Com Ltd
Priority to BRPI0700896ApriorityCriticalpatent/BRPI0700896B1/en
Publication of BRPI0700896ApublicationCriticalpatent/BRPI0700896A/en
Publication of BRPI0700896B1publicationCriticalpatent/BRPI0700896B1/en
PROCESSO DE FABRICAçãO DE UM AGENTE REDUTOR QUìMICO A BASE DE SO~ 2~ E UM AGENTE REDUTOR QUìMICO A BASE DE SO~ 2~ , utilizado como substituto do bissulfito de sódio convencional, e mais especificamente, dito produto obtido pela reação química do dióxido de enxofre e soda cáustica, estabilizados estequiometricamente com o produto de outra reação química entre o dióxido de enxofre e a amónia anidra.MANUFACTURING PROCESS OF A SO ~ 2 ~ CHEMICAL REDUCING AGENT AND A SO ~ 2 ~ CHEMICAL REDUCING AGENT, used as a substitute for conventional sodium bisulfite, and more specifically, said product obtained by the chemical reaction of SO 2 sulfur and caustic soda, stabilized stoichiometrically with the product of another chemical reaction between sulfur dioxide and anhydrous ammonia.
BRPI0700896A2007-03-082007-03-08
manufacturing process of a chemical reducing agent based on so2, ammonium bisulfite and sodium bisulfite.
BRPI0700896B1
(en)
Process for water purification which includes adding to the water to be purified natural calcium carbonate by reacting on the surface or an aqueous suspension, which has a ph greater than 6.0 measured at 20 degrees Celsius; and a compound of natural calcium carbonate
CAPILLARY COLORING PROCESS FROM A COMPOSITION COMPRISING AT LEAST ONE ORTHODIPHENOL, A METAL SALT, HYDROGEN PEROXIDE, (BI) CARBONATE AND ALKALINIZING AGENT