Solvent-activated reactor

A solvent-activated chlorine dioxide generator comprising:

• a core containing a mixture of metal chlorite, an acid source, and a free halogen source that dissolve in a main solvent to form liquid phase reactants and generate chlorine dioxide through an in-situ chemical reaction when contacted by the main solvent;
• and
• a solvent-permeable reactor wall that uniformly encapsulates a core of reactants defining a reactor space that contains the core, wherein the solvent-permeable reactor wall in contact with the main solvent is a membrane which allows the main solvent into the reactor space, restricts the diffusion of the reactants out of the reactor space, and where the liquid phase metal chlorite, acid source, and free halogen source generate chlorine dioxide, wherein the reactor wall releases the chlorine dioxide and a free halogen in the form of an oxidizing solution at a controlled rate;
• and
• wherein the solvent-permeable reactor wall that uniformly encapsulates a core or reactants comprises:
• a coating material distributed over the surface of the core in the form of an aerosol or spray and dried;
• and
• wherein the coating material is selected from at least one of a;
• silicate, cellulose, chitin, chitosan, polymaleic acid, polyacrylic acid, polyacrylamide, and polyvinyl alcohol.

A solvent-activated chlorine dioxide generator comprising:

• a core of reactants including a mixture of metal chlorite and an acid source that dissolve in water to form liquid phase reactants and generate chlorine dioxide through an in-situ chemical reaction when contacted by the water;
• and
• a solvent-permeable reactor wall that uniformly encapsulates the core of reactants defining a reactor space that contains the core, wherein the solvent-permeable reactor wall in contact with the water is a membrane which allows water into the reactor space, restricts the diffusion of the reactants out of the reactor space, and where the liquid phase reactants generate chlorine dioxide,wherein the reactor wall releases the chlorine dioxide into a surrounding environment at a controlled rate;
• and
• wherein the solvent-permeable reactor wall that uniformly encapsulates a core of reactants comprises:
• a coating material distributed over the surface of the core in the form of an aerosol or spray and dried;
• and
• wherein the coating material is selected from at least one of a:
• silicate, cellulose, chitin, chitosan, polymaleic acid, polyacrylic acid, polyacrylamide, and polyvinyl alcohol.

A solvent-activated reactor that generates a target product when placed in contact with a main solvent, the reactor comprising:

• a core that contains a dry aggregate of first reactant and second reactant wherein the first reactant and the second reactant are in direct contact with each other, the core being capable of generating the target product by a chemical reaction upon being contacted by the main solvent;
• and
• a solvent-permeable reactor wall that uniformily encapsulates a core of reactants defining a reactor space that contains the core, wherein the solvent-permeable reactor wall in contact with the main solvent is a membrane which allows the main solvent into the reactor space, restricts the diffusion of the reactants out of the reactor space, wherein the target product diffuses out of the reactor space at a restricted rate through the reactor wall;
• and
• wherein the solvent-permeable reactor wall that uniformly encapsulates a core of reactants comprises:
• a coating material distributed over the surface of the core in the form of an aerosol or spray and dried;
• and
• wherein the coating material is selected from at least one of a:
• silicate, cellulose, chitin, chitosan, polymaleic acid, polyacrylic acid, polyacrylamide, and polyvinyl alcohol.

A solvent-activated reactor that generates a target product when placed in contact with a main solvent, the reactor comprising:

• a core that contains a reactant that is capable of generating the target product by a chemical reaction upon being contacted by the main solvent;
• and
• a solvent-permeable reactor wall that uniformly encapsulates a core of reactants defining a reactor space that contains the core, wherein the solvent-permeable reactor wall in contact with the main solvent is a membrane which allows the main solvent into the reactor space, restricts the diffusion of the reactants out of the reactor space, wherein the target product diffuses out of the reactor space at a restricted rate through the reactor wall;
• and
• wherein the solvent-permeable reactor wall that uniformly encapsulates a core of reactants comprises:
• a coating material distributed over the surface of the core in the form of an aerosol or spray and dried;
• and
• wherein the coating material is selected from at least one of a:
• silicate, cellulose, chitin, chitosan, polymaleic acid, polyacrylic acid, polyacrylamide, and polyvinyl alcohol.

A solvent-activated reactor that generates a target product when placed in contact with a main solvent, the reactor comprising:

• a core that contains a reactant that is capable of generating the target product by a chemical reaction upon being contacted by the main solvent;
• and
• a soluble reactor wall that uniformly encapsulates a core of reactants defining a reactor space that contains the core, wherein the soluble reactor wall in contact with the main solvent is a membrane which has a solubility in the main solvent that is lower than that of the reactant such that the soluble reactor wall allows the main solvent to enter the reactor space at a controlled rate, allows the target product to diffuse out of the reactor space at a controlled rate, disintegrates after the reactor space becomes substantially depleted of the reactant and the target product;
• and
• wherein the solvent-permeable reactor wall that uniformly encapsulates a core of reactants comprises:
• a coating material distributed over the surface of the core in the form of an aerosol or spray and dried;
• and
• wherein the coating material is selected from at least one of a:
• silicate, cellulose, chitin, chitosan, polymaleic acid, polyacrylic acid, polyacrylamide, and polyvinyl alcohol.