T/QAS 054-2021 Active Group standards

T/QAS 054-2021 Industrial production process technology for sodium chloride with extraction method for potassium tailings washing

Publish Date: 2021-09-13 Implement Date: 2021-09-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/QAS 054-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Food processing and products

ICS Name: Chemical production

Publish Date: 2021-09-13

Implement Date: 2021-09-16

Scope

Scope: This document specifies the process principles, process flow, process operation procedures, and process parameters for the production of industrial sodium chloride using potassium tail salt as raw material and the solvent washing method. This document is applicable to the production of industrial sodium chloride from potassium tail salt by the solvent washing method in the Zhalantan area. Main Technical Content: 1. Scope: This document specifies the process principles, process flow, process operation procedures, and process parameters for the production of industrial sodium chloride using potassium tail salt as raw material and the solvent washing method. This document is applicable to the production of industrial sodium chloride from potassium tail salt by the solvent washing method in the Zhalantan area. 2. Normative References: The content of the following documents is essential to this document through normative references. Among them, the referenced documents with a specified date are applicable to this document only for the version corresponding to that date; the unspecified date referenced documents are applicable to this document with their latest version (including all amendment sheets). - GB/T 5462: Industrial Salt - GB/T 6549: Potassium Chloride 3. Terms and Definitions: The following terms and definitions are applicable to this document. 3.1 Potassium Tail Salt: The by-product of potassium tail salt produced during the production of potassium chloride, mainly composed of sodium chloride. 4. Process Principles: 4.1 Solvent Washing Principle: Potassium tail salt is mainly composed of sodium chloride, with other main components including potassium chloride and magnesium chloride. At room temperature, adding unsaturated solutions of potassium chloride and magnesium chloride to potassium tail salt can dissolve the potassium chloride and magnesium chloride into the liquid phase. After solid-liquid separation, the industrial sodium c