Topic
Sodium chlorate
About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.
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Patent•
10 Dec 2014
TL;DR: In this paper, an adhesive for paper products and a production method of denaturated starch is described. But the method is not suitable for continuous production and the product is extremely unstable, and the defects that the 'dry process' cannot carry out continuous production of the product are overcome.
Abstract: The invention provides denaturated starch of an adhesive for paper products and a production method of the denaturated starch. The denaturated starch comprises the components: starch, hydrochloric acid, hydrogen peroxide, potassium chlorate or sodium chlorate and an alkaline PH value modifier. The production method comprises the following steps: (1) adding the starch to a reaction container with the temperature of 50-70 DEG C, and adding corresponding proportions of hydrochloric acid, hydrogen peroxide, potassium chlorate or sodium chlorate; (2) enabling the materials to react for 60-120 minutes, measuring the viscosity of the materials, controlling the ratio of the materials to water in viscosity to be (1 to 3), (1 to 5) or (1 to 7), and if the viscosity which is measured by sampling for the first time is greater than the required viscosity, continuing to react; and (3) after the viscosity meets the requirements, immediately adding the alkaline PH value modifier to neutralize, and controlling the PH value of the product to be 5-8. According to the production method, a traditional wet process production process is changed by adopting dry process and semi-dry process production technologies, the defects that the 'dry process' cannot carry out continuous production and the product is extremely unstable are overcome, and the production process provided by the invention is simple in steps, easy to operate, and excellent in continuous production stability.
Patent•
30 Mar 2016
TL;DR: In this paper, an environment-friendly sodium chlorite preparing method and device by means of the hydrogen peroxide method chlorine dioxide technology is presented, where a single-container vertical generator is adopted in the method, the raw material hydrogen dioxide is mixed with a sodium chlorate solution to be diluted in advance and then added through a lower circulating tube of the generator, sulfuric acid is added through the pipe arranged on a top opening of a reboiler, mirabilite crystals are filtered and separated out through a filtering system, mother liquid filtered out returns to a generator circulating system
Abstract: The invention discloses an environment-friendly sodium chlorite preparing method and device by means of the hydrogen peroxide method chlorine dioxide technology. A single-container vertical generator is adopted in the method, the raw material hydrogen peroxide is mixed with a sodium chlorate solution to be diluted in advance and then added through a lower circulating tube of the generator, sulfuric acid is added through a pipe arranged on a top opening of a reboiler, mirabilite crystals are filtered and separated out through a filtering system, mother liquid filtered out returns to a generator circulating system for circular reaction continuously, chlorine dioxide mixed gas generated through flash evaporation is cooled by an intercooler through a vent pipe arranged at a top opening of the generator and then enters a primary sodium chlorite preparation tower, chlorine dioxide gas is absorbed with caustic soda and hydrogen peroxide, and a sodium chlorite solution is generated through reaction and delivered into a secondary sodium chlorite preparation tower for cyclic washing of system tail gas. The conversion efficiency of adopted chemical materials is high, the reaction speed is high, product purity is high, the byproduct neutral mirabilite can be directly dried to form anhydrous sodium sulphate to be sold, no waste acid is discharged during preparation, and cleanness and environment friendliness are realized.
Patent•
09 Jun 2010
TL;DR: In this article, the problem of providing an apparatus for producing perchlorate, capable of reducing power consumption in electrolytic oxidation of a perchloric acid, was addressed. But the problem was not addressed.
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for producing perchlorate, capable of reducing power consumption in electrolytic oxidation of a perchloric acid.SOLUTION: The apparatus for producing perchlorate includes an electrolytic cell in which an anode side where an anode 4 is provided and a cathode side where a cathode 5 is provided are separated with a cation exchange membrane 6 and electrolytic oxidation of an aqueous sodium chloride solution, an aqueous sodium hypochlorite solution or an aqueous sodium chlorate solution is performed on the anode side. In the electrolytic cell, the anode 4 is composed of a multilayer electrode formed by laminating a first mesh electrode 41a having a predetermined mesh size and a second mesh electrode 41b having a mesh size larger than the predetermined mesh size, and the cation exchange membrane 6 is sandwiched between the anode 4 and the cathode 5 in such a way that the first mesh electrode 41a is in contact with the cation exchange membrane 6.
Patent•
14 Sep 2018
TL;DR: In this article, a preparation method of a solid composite water purification agent is described, which includes evenly mixing raw materials, including a solid raw material iron vitriol, sulfuric acid and water, according to the ratio of 5:4:1, pumping the solution into a closed reaction container by a pump, adding 100kg of sodium nitrite solutions into each cube of the mixed solution,performing oxygenation under normal pressure, stirring the mixed mixture to consume 65kg of oxygen, increasing the reaction temperature continuously by heat released during reaction, and generating NO and NO2,
Abstract: The invention relates to a preparation method of a solid composite water purification agent. The preparation method includes evenly mixing raw materials, including a solid raw material iron vitriol, sulfuric acid and water, according to the ratio of 5:4:1, pumping the solution into a closed reaction container by a pump, adding 100kg of sodium nitrite solutions into each cube of the mixed solution,performing oxygenation under normal pressure, stirring the mixed solution to consume 65kg of oxygen, increasing the reaction temperature continuously by heat released during reaction, and generatingNO and NO2, wherein the reaction pressure is 1.5kg/cm , the reaction time is 3-4 hours, and the reaction temperature is 30-90 DEG C; after reaction, pumping the reaction solution into a stabilizingtank for temporary storage by the pump, adding 100kg of sodium chlorate solutions into the stabilizing tank, performing stabilizing and curing for 4 hours, and filtering the cured solution by a sheetframe to obtain the efficient liquid water purification agent, wherein the adding ratio of the sodium chlorate solutions is 10%; preparing the spherical-particle solid composite water purification agent according to a spray-drying method. Compared with conventional ferric sulfate, the prepared solid composite water purification agent has the advantages that total phosphorus in waste water is removed, and the COD removal effect is good.