Preparation process of polyaluminum chloride

A polyaluminum chloride and preparation technology, applied in the direction of aluminum chloride, aluminum halide, etc., can solve the problems of the final purity of polyaluminum chloride, environmental pollution, waste of hydrochloric acid, etc., to save steps, improve efficiency, reduce The effect of the possibility of decomposition
CN106044818BActive Publication Date: 2018-01-16吉林紫瑞新材料有限公司
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
吉林紫瑞新材料有限公司
Publication Date
2018-01-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

A preparation technology of polyaluminum chloride comprises following steps: S1, 2-benzoylbenzoic acid mother liquor is added to an enamel reactor, and then hydrogen peroxide is slowly added to the 2-benzoylbenzoic acid mother liquor until no gas is generated; S2, calcium powder is added to the 2-benzoylbenzoic acid mother liquor in the step S1; S3, an appropriate amount of water is added to the 2-benzoylbenzoic acid mother liquor in the step S2, and the temperature of the enamel reactor is controlled and kept for a period of time; S4, the temperature of enamel reaction is increased and kept, and pale yellow floccules are obtained; S5, the pale yellow floccules are subjected to filter pressing, washing and suck drying sequentially, and a finished liquid product polyaluminum chloride is obtained finally; S6, the finished liquid product polyaluminum chloride is concentrated and dried, and solid powder is obtained; S7, the solid powder is subjected to grinding. With the adoption of the technology, the utilization rate of resources is increased, the purity of the product can also be guaranteed, secondary pollution to treated water due to the fact that substances such as phthalic anhydride, benzene and the like are mixed into the finished product is avoided, meanwhile, the steps for preparation of polyaluminum chloride are reduced, and the production efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of aluminum chloride flocculant production, in particular to a preparation process of polyaluminum chloride. Background technique

[0002] Polyaluminum chloride is a water purification material, inorganic polymer coagulant, also referred to as polyaluminum, English abbreviation is PAC, the molecular weight produced due to the bridging effect of hydroxide ions and the polymerization of polyvalent anions Larger, higher charge inorganic polymer water treatment agent. It can be divided into solid and liquid in form. The solid can be divided into brown, beige, golden yellow and white according to different colors, and the liquid can be colorless and transparent, slightly yellow, light yellow to yellowish brown. Polyaluminum chloride of different colors is also quite different in application and production technology.

[0003] The raw materials used to prepare liquid polyaluminum chloride in the prior art mainl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More