Corn starch pasting method

A technology of corn starch and starch, which is applied in the field of corn starch gelatinization, can solve the problems of high energy consumption, low utilization rate, and poor inhibition effect, and achieve the effects of good selectivity, improved utilization rate, and energy saving

Inactive Publication Date: 2010-05-12
湖南省铸万有实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the defects of large energy consumption, low utilization rate and poor inhibitory effect in the traditional gelatinization method of cornstarch, and provide a cornstarch paste with low energy consumption, high cornstarch utilization rate and good selective inhibitory effect method

Method used

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  • Corn starch pasting method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] 1. Weighing

[0029] According to cornstarch, caustic soda mass ratio is the ratio of 3-5: 1 to take raw material,

[0030] Two, lye making

[0031] Prepare caustic soda into 5-10% aqueous solution,

[0032] 3. Preparation of corn starch suspension

[0033] Prepare cornstarch into 5-10% suspension,

[0034] 4. Causticization

[0035] Add the caustic soda solution into the cornstarch suspension, stir while adding, and let it stand for 30-10 minutes to obtain causticized starch colloid, which is diluted to the required concentration when used.

[0036] The ratio of raw materials for each batch of causticized starch colloid is prepared, and the concentration is detailed in the table below

[0037]

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PUM

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Abstract

The invention discloses a conventional corn starch pasting method, which comprises the following steps: weighing raw materials in a mass ratio of corn starch to sodium hudroxide being 3-5:1; preparing the sodium hudroxide into 5 to 10 percent suspended alkali liquor; preparing the corn starch into 5 to 10 percent suspension; adding the sodium hudroxide solution into the corn starch suspension with stirring, standing for 3 to 10 minutes to prepare alkalified starch colloid, and diluting to required concentration when the alkalified starch colloid is used. The corn starch pasting method overcomes the defects of high energy consumption, low utilization rate and poor depression effect of the conventional method, and has low energy consumption, high utilization rate of the corn starch, and good suppression effect selectivity.

Description

Technical field [0001] The invention relates to a cornstarch gelatinization method, in particular to a cornstarch gelatinization method at normal temperature. Background technique [0002] Modified corn starch is often used as a carbonate inhibitor in the traditional separation process of high-carbonate fluorspar ores. In the traditional sorting process, modified cornstarch is obtained through gelatinization of cornstarch, and its preparation method is as follows: heating water to 80°C, adding cornstarch according to the mass ratio of water:cornstarch 9-19:1 , stir well. Add caustic soda according to the ratio of corn starch: caustic soda mass ratio of 4:1 NaOH , keep warm for 30-40 minutes to prepare about 5-10% cornstarch paste, dilute and use as required. The traditional cornstarch gelatinization method has the following defects: [0003] One is that it consumes a lot of energy. Gelatinizing 1 kg of corn starch requires 9-18 kg of hot water above 80°C and the starch ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/12
Inventor 赵百科王尤仁
Owner 湖南省铸万有实业有限公司
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