Polymerized titanium tetrachloride inorganic polymeric flocculant and preparation method of inorganic polymeric flocculant

An inorganic polymer, titanium tetrachloride technology, applied in the field of environment and chemistry, can solve the problems of unstable properties of polysilicic acid, loss of flocculation efficiency, restricting the scope of application of polysilicic acid, etc., to achieve good flocculation effect and improve coagulation. Effectiveness, good water treatment effect

Active Publication Date: 2013-03-20
SHANDONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Introducing silicate into titanium salt can increase the polymerization degree of titanium salt and enhance its adsorption and bridging ability, but the property of polysilicic acid is unstable, and polycondensation reaction will occur by itself during storage. With the advancement of polycondensation reaction process, its The molecular weight of the polymer continues to increase, and eventually it is converted into a water-insoluble polymer gel, which makes it lose its flocculation efficiency. These shortcomings greatly restrict the scope of application of polysilicic acid.

Method used

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  • Polymerized titanium tetrachloride inorganic polymeric flocculant and preparation method of inorganic polymeric flocculant
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  • Polymerized titanium tetrachloride inorganic polymeric flocculant and preparation method of inorganic polymeric flocculant

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Embodiment

[0025] Measure 80mL of 99wt% titanium tetrachloride solution, add it dropwise to 316mL of ice water under the condition of 600rpm stirring, control the dropping speed to 1mL / min, keep stirring for 3h after the addition, and obtain a colorless transparent solution, namely It is 20wt% titanium tetrachloride solution; after that, measure 25.0ml of 20% titanium tetrachloride solution, and add 200g / L NaOH solution dropwise under vigorous stirring conditions, and the dropping volumes are respectively: 0.664mL, 1.992 mL, 3.32mL, 6.64mL, 9.96mL, 13.28mL, 16.6mL, 19.92mL, the dropping time are: 1, 3, 7, 15, 25, 35, 40, 50min. Continue to stir for 2~3h after the dropwise addition to obtain polymerized titanium tetrachloride inorganic polymer flocculants with alkalization degrees of 0.1, 0.3, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 respectively. The prepared product is named as No.1 , No.2, No.3, No.4, No.5, No.6, No.7, No.8 said.

[0026] One of the application examples:

[0027] The No. 1, ...

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Abstract

The invention relates to a preparation method of a polymerized titanium tetrachloride inorganic polymeric flocculant. The preparation method comprises the following steps: by using a titanium tetrachloride solution and sodium hydroxide as raw materials, adding sodium hydroxide into the titanium tetrachloride solution, wherein the alkalization degree is equal to 1.5-2, and the dropwise adding process of a sodium oxide solution is finished within 10-60 minutes; and then, further stirring for 1.5-5 hours until the solution becomes a colorless transparent liquid. The flocculant has the advantages of good product stability, strong colloidal substance adsorbing and bridging capabilities, good flocculation effect, wide application range, low sludge productivity and the like, can be widely applied to the fields of water supply, wastewater treatment, papermaking, textile dyeing and printing, daily chemical industry and the like and has a favorable water treatment effect. The method provided by the invention has the characteristics of simple and rapid process, economy, rapidness and the like.

Description

(1) Technical field [0001] The invention relates to a preparation method of a polymerized titanium tetrachloride inorganic polymer flocculant (PTC), which belongs to the technical field of environment and chemistry. (2) Background technology [0002] In recent years, titanium tetrachloride has received widespread attention as a new type of water treatment agent. Titanium tetrachloride has better defluorination and decolorization effects than traditional aluminum salt flocculants, and the decolorization effect of titanium tetrachloride is better than that of aluminum sulfate; the study also found that titanium tetrachloride has a significant coagulation effect when the water temperature is close to freezing point It is superior to traditional aluminum salt and iron salt flocculants, which has important practical significance in practical applications, and is especially suitable for winter water treatment in Northwest and Northeast my country. In addition, compared with alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 高宝玉赵艳侠王燕李倩岳钦艳黄鑫
Owner SHANDONG UNIV
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