BR-102020014493-B1 - PROCESS FOR GENERATING, MAKING AVAILABLE, DOSING AND APPLYING A CHLORINE DIOXIDE-BASED DISINFECTANT IN CONJUNCTION WITH CITRIC ACID

Abstract

PROCESS FOR GENERATING, MAKING AVAILABLE, DOSING AND APPLYING A CHLORINE DIOXIDE-BASED DISINFECTANT IN CONJUNCTION WITH CITRIC ACID. This refers to a process for producing a chlorine dioxide solution suitable for use as a disinfectant for cleaning and disinfecting surfaces (floors and equipment) safely, efficiently, and easily prepared, with a long shelf life of the active ingredient and activator lasting at least two years, and with a residual chlorine dioxide content remaining for more than one month after activation, without a drop in content, maintaining disinfection efficiency to eliminate multiple microorganisms dangerous to human health. The final product obtained is easy to handle and poses a low risk of use. This process consists of five distinct phases, from the preparation of raw materials in the factory to obtaining properly disinfected surfaces as a final result: I. Preparation of raw materials and reagents in a factory environment; II. Packaging for transport of raw materials separately; III. Generation of chlorine dioxide and final production of the disinfection product, with a logistics time calculated before activation and a time greater than one month after activation for the (...).

Inventors

• MARCO ANTONIO MATIOLLI SABARÁ

Assignees

• SABARÁ QUÍMICOS E INGREDIENTES S/A

Dates

Publication Date

20260317

Application Date

20200716

Claims (3)

1. 1) PROCESS FOR GENERATING, MAKING AVAILABLE, DOSING AND APPLYING A CHLORINE DIOXIDE-BASED DISINFECTANT IN CONJUNCTION WITH CITRIC ACID, characterized by comprising five distinct phases: I. preparation of sodium chlorite in a factory environment at concentrations of 10 to 25% w/w, and of citric acid at concentrations of 12 to 25% w/w, generating a chlorine dioxide solution at concentrations of 100, 200 and 300 ppm; II. packaging for the storage and transport of sodium chlorite and citric acid in separate containers, preferably with volumes of 1 to 2 liters each, equipped with a dosing container with a volumetric scale, preferably up to 80 mL, fed by a side duct that operates by pressure difference; III. The process involves: I. generating chlorine dioxide and obtaining the final product using sodium chlorite as a precursor and citric acid as an oxidant and reductant in the generation reaction, mixed in equal quantities as specified in their respective packaging, preferably 50 mL of each active ingredient, which react for a period of 15 minutes. The resulting product is then diluted in water, producing a final solution of 5 liters of chlorine dioxide at concentrations of 100, 200, and 300 ppm; II. primary activation reaction and secondary reaction phase, residual reaction, maintaining the stable activation of chlorine dioxide; III. obtaining the final product for application.
2. 2) PRODUCT OBTAINED FROM THE PROCESS OF GENERATING, MAKING AVAILABLE, DOSING AND APPLYING A CHLORINE DIOXIDE-BASED DISINFECTANT IN CONJUNCTION WITH CITRIC ACID, using the process as defined in claim 1, characterized by the active ingredient chlorine dioxide maintaining its stable activation, with effective oxidizing power against pathogenic microorganisms Streptococcus Agalactiae and Staphylococcus Aureus.
3. 3) USE OF THE FINAL DISINFECTANT PRODUCT BASED ON CHLORINE DIOXIDE IN CONJUNCTION WITH CITRIC ACID, as defined in claims 1 and 2, characterized by the fact that it is applied in the disinfection of surfaces, food and water treatment.

Description

TECHNICAL FIELD OF APPLICATION: 01. The present invention relates to a process for producing a chlorine dioxide solution suitable for enabling the use of this bactericide as a disinfectant in the cleaning and disinfection of surfaces (floors and equipment) in a safe and efficient manner and with easy preparation, with a long storage time of the active ingredient and activator lasting at least two years and with a residual chlorine dioxide content remaining for more than one month after activation, without a drop in content, maintaining disinfection efficiency to eliminate multiple microorganisms dangerous to human health. 02. Current challenges in controlling bacteria and viruses have become a fundamental issue in human society, especially in large cities where the proximity of people and human interaction also require bactericides with high disinfectant power, low risk to humans and animals during handling, application, and side effects from inhalation, as well as low risks during transport, and low operational cost. OBJECTIVE OF THE INVENTION: 03. The objective of the present invention is to provide a process for generating, dispensing, dosing, and applying a chlorine dioxide-based disinfectant for disinfecting surfaces, which is easy to handle and has a low risk of use. This process consists of preparing the raw materials at the factory and obtaining properly disinfected surfaces as the final result. 04. The process steps consist of: I. Preparation of raw materials and reagents in appropriate concentrations and volumes in a manufacturing environment; II. Packaging for transporting raw materials, designed to minimize manual contact with the materials and provide activation at precise levels through meters present in the packaging; III. Generation of chlorine dioxide and the final production of the disinfection product, with various formulations and activation times to meet application needs, with logistics time calculated before activation and a time greater than one month after activation for application (effective surface disinfection); IV. Primary activation reaction at desired concentrations and secondary reaction phase, called residual reaction, so that the activated product has a useful life of more than one month for use in surface decontamination; V. Obtaining and applying the final product. BACKGROUND AND FUNDAMENTALS OF THE INVENTION: 5. Unlike other disinfectants such as chlorine, sodium hypochlorite (known as bleach), as well as quaternary ammonium compounds or hydrogen peroxide, which are sold ready for application in a single package, chlorine dioxide solution needs to be generated at the time of application, since this active ingredient has a short useful time interval to oxidize pathogens before degrading in the environment, a desirable characteristic in disinfection. This characteristic of the active ingredient implies preparations, care, and operational knowledge in its production at the time of application to achieve the desired results. 6. Chlorine dioxide also has a higher oxidation power than other disinfectant agents on the market. Thus, comparing one liter of finished product for application with another active ingredient, the same liter of chlorine dioxide-generating inputs can generate between 50 and 1,000 liters of finished product, ready for application, resulting in a much lower operational cost for the corresponding disinfection. This fact underlies the importance of obtaining a process that makes this application feasible in a safe and easy way. 07. On the other hand, despite limited market knowledge of this asset, there are international standards for the use of this disinfectant for washing meats, fruits and vegetables, as well as technical standards qualifying the asset for the treatment of water for human consumption. 08. Thus, the present patent aims to provide a process for inputs, logistics, generation, handling and application of chlorine dioxide, aiming at the safety and efficiency of disinfection without the emission of gases or odor in generation or application, with a long shelf life before activation and more than one month after activation, as described in detail below. 9. The generation of chlorine dioxide solution is typically done with the presence of two or even four types of molecules reacting simultaneously, which fall into categories of carrier element generating the active ingredient, carrier, and oxidizing and reducing elements that, in reaction with the carrier element, generate the chlorine dioxide solution. 10. It is of fundamental importance that other gases (such as chlorine, for example) are not generated along with chlorine dioxide, since chlorine is ten times less soluble than chlorine dioxide, which would cause chlorine gas emissions into the environment during the reaction. 11. In analyzing the state of the art relevant to the subject matter, some existing process patents are listed below, along with their technical bases, comparing them with