8 results about "Chloride levels" patented technology

The present application belongs to the technical field of detection method, and particularly relates to a method for determining chlorides in reforming catalysts. The method comprises the following steps: burning the pretreated reforming catalyst sample to be determined to obtain a burned sample, adding water to extract the sample to obtain a chlorides extract, and determining the content of chlorides in the extract by silver nitrate titration. The temperature of the burning treatment is 600±25 DEG C, and the time is 1-3 hours. The present application discards the step of using magnesium chips / powder, which is an explosive hazardous material, in the traditional method, simplifies the sample pretreatment process, shortens the analysis time from 7 hours to 4 hours, eliminates the influence of wet base by calculating the mass fraction of alumina dry base and participating in the calculation of the content of chlorides, and improves the detection accuracy. The present application is safe, efficient, accurate and low in cost, and is suitable for monitoring chlorides in the whole life cycle of reforming catalysts in the petrochemical industry.

The present invention relates to a method for monitoring chloride content in porous materials, preferably in reinforced concrete structures, in which a voltammetric sensor comprising a metal electrode is used, characterised in that the electrode metal forms poorly soluble ionic compounds with chlorides and a potentiodynamic excitation signal is applied to the electrode, causing an oxidation-reduction process to take place that favours the formation of the poorly soluble ionic compounds. The formation of the poorly soluble ionic compounds produces a response in the form of electric current intensity that is related to the chloride content in the monitored material.

The present invention relates to a method for the reduction of the total alkali content of solid feedstocks employing mild temperature aqueous leaching in the presence of a leaching agent of formula XO and / or X(OH)? wherein X is an alkaline earth metal. The invention further relates to the solid material having reduced total alkali content obtainable from the method. The invention further relates to uses of the solid material, for example as a filler. The invention further relates to compositions comprising the solid material and a further material selected from the group consisting of asphalt, cement, geopolymers, polymers and combinations thereof. The invention further relates to a method for preparing concrete.

The disclosure relates to displacing corrosive salts in processing or co-processing renewable feedstocks. More specifically, the disclosure relates to displacing corrosive salts through the addition of choline-based hydroxides in the affected section of process unit that experience high levels of ammonia, amines, or chlorides and their use for reducing salt fouling and corrosion.

The invention relates to a method for reducing the chloride content in lipids, in particular in oils and fats, characterised by the following steps: A providing a first lipid phase (1 or 5) having an increased chloride content; B adding (104) water (9), in particular demineralised water, and an organic acid (10) to the first lipid phase and keeping (105) this mixture (12) at a temperature of more than 140°C and less than 200°C and at a pressure of more than 10 bar and less than 16 bar over a dwell time of more than 2 h; and C separating (107) the mixture (12) into a second lipid phase (14) having a reduced chloride content and a water phase (13), wherein the method does not comprise the addition of a base and does not comprise the addition of a bleaching agent to the first lipid phase (5) or the second lipid phase (14) or the mixture (12). The invention also relates to a method for hydrolysing an oil and / or fat.

This disclosure pertains to a process and circuit for producing enhanced manganese-zinc filter cake compositions, and more specifically to a wash process and circuit that produces manganese concentrations of 36-45 wt. % and zinc concentrations of 15-17 wt. % while lowering chloride content to below 3 wt. %. The process and circuit involve sequential washing, drying, repulping, and dewatering of polymetallic filter cakes derived from saline feedstocks, facilitating effective downstream recovery of refined manganese and zinc products.

The disclosure relates to displacing corrosive salts in processing or co-processing renewable feedstocks. More specifically, the disclosure relates to displacing corrosive salts through the addition of choline-based hydroxides in the affected section of process unit that experience high levels of ammonia, amines, or chlorides and their use for reducing salt fouling and corrosion.

A method for reducing the chloride content in lipids, especially in oils and fats, characterized by the following steps: A. Providing a first lipid phase (1 or 5) with increased chloride content B Addition (104) of water (9), in particular demineralized water, and an organic acid (10) to the first lipid phase and holding (105) this mixture (12) at a temperature of more than 140°C and less than 200°C and at a pressure of more than 10 bar and less than 16 bar for a residence time of more than 2h; and C Phase separation (107) of the mixture (12) into a second lipid phase (14) with reduced chloride content and an aqueous phase (13), wherein the process does not include the addition of an additional base or the addition of an additional bleaching agent to the first lipid phase (5) or the second lipid phase (14) or the mixture (12), and a process for the hydrolysis of an oil and / or fat.