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Preparation method of polysilicate diboride flocculant

A technology of polysilicate and flocculant, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of short storage period, achieve the effect of improving stability, excellent oil removal performance, and improving storage stability

Active Publication Date: 2010-09-08
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of inorganic boron element has a certain effect on the improvement of product stability, but the storage period is still relatively short

Method used

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  • Preparation method of polysilicate diboride flocculant
  • Preparation method of polysilicate diboride flocculant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare 160g of sodium silicate solution with a concentration of 15%, adjust its pH value to 4 at room temperature with sulfuric acid, age for 18 hours, and prepare 53.8g of aluminum sulfate solution with a concentration of 20%, and a zinc chloride solution with a concentration of 25%. A mixture of 21.5 g and 5.3 g of boric acid-isooctyl and boric acid-diisooctyl was added to the aged sample, stirred at room temperature for 4 hours, and left to stand for 24 hours to obtain product S-1.

Embodiment 2

[0025] Prepare 200g of potassium silicate solution with a concentration of 12%, adjust its pH value to 3 with phosphoric acid at 30°C, and after aging for 20 hours, mix 107g of aluminum sulfate solution with a concentration of 10% and zinc chloride with a concentration of 5%. 106 g of the solution and 12.5 g of a mixture of boric acid-isooctyl and boric acid-diisooctyl were added to the aged sample, stirred at room temperature for 3 hours, and left to stand for 10 hours to obtain product S-2.

Embodiment 3

[0029] Prepare 135 g of sodium silicate solution with a concentration of 35%, adjust its pH value to 2 with hydrochloric acid at 30° C., and age for 10 hours. Concentration is that 10% aluminum chloride solution 107g, the mixture that concentration is 15% zinc chloride solution 100g and 8g ethyl borate and boric acid-diethyl ester are added respectively in the aging sample, stirred at room temperature for 6 hours, After standing still for 16 hours, product S-3 was obtained.

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Abstract

The invention provides a preparation method of a polysilicate diboride flocculant, in the technical scheme, the following substances are adopted as the raw materials by the 100 mass parts of the polysilicate diboride flocculant: 1 to 20 parts of alkali metal silicate, 1 to 8 parts of zinc salt, 1 to 6 parts of aluminum salt and 1 to 4 parts of organic boric acid ester; the preparation method comprises the following preparation steps that: (1) water respectively prepares the alkali metal silicate, the aluminum salt and the zinc salt into 1 to 40 weight percent of solution; (2) acid is used for regulating the pH value of the alkali metal silicate solution which is prepared in step (1) to be less than 6 or more than 10, the reaction temperature is regulated to be 0 to 60DEG C, polymerization is carried out for 1 to 10h, and aging is carried out for 1 to 24h; and (3) the organic boric acid ester and the zinc salt and the aluminum salt solution which are prepared in step (1) are added into an aged sample in step (2), the reaction temperature is regulated to be 0 to 60DEG C, and the materials react for 1 to 10h and stay still for 2 to 24h. The polysilicate diboride flocculant has excellent turbidity flocculation effect and oil removing effect, and can simultaneously improve the stable storage performance.

Description

technical field [0001] The invention relates to a preparation method of a boronated polysilicate multifunctional flocculant, in particular to a preparation method of a boron-containing polysilicate multifunctional flocculant which contains an organic boron compound and is combined with various inorganic ions. Its application in water treatment and oil refining industry. Background technique [0002] Polysilicate is a new type of inorganic polymer flocculant, which is the reaction product of polysilicic acid and inorganic salts developed on the basis of polysilicic acid and traditional inorganic polymer flocculants such as polyaluminum and polyiron. , is currently the focus of research on inorganic polymer flocculants in China. Because metal ions are embedded in the molecular chain of polysilicate, this kind of flocculant not only has the function of electric neutralization, but also has the function of sweeping net capture and adsorption bridging, and the flocculation effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 王小雄刘发强朱家仪刘光利梁宝锋曹凤霞赵保全史小云赵旭涛杨岳
Owner PETROCHINA CO LTD
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