Nano diatomite treating agent and preparation method thereof

A technology of nano-diatomite and treatment agent, which is applied in fiber processing, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, etc. Production, not widely used, unfavorable large-scale promotion and other problems, to achieve the effect of improving production and use environment, avoiding equipment corrosion, and improving product quality level

Inactive Publication Date: 2010-03-31
张海燕 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantages of the use of this raw material are: high risk of operation, large amount of use; serious corrosion of equipment; not only great damage to materials (such as fabric fibers), but also the discharged wastewater is strongly alkaline, highly toxic, and smelly. serious pollution
[0007] Chinese Patent Publication No. CN101012623 discloses a nano-biological enzyme treatment agent, including nano-titanium dioxide, biological enzymes, sodium hydroxide, etc., but this nano-biological enzyme treatment agent can only be used for desizing, scouring, and bleaching of textile fabrics, and The production process is complicated and the cost is too high, which is not conducive to large-scale promotion
But this kind of color-fixing alkali is only limited to being able to replace soda ash (sodium carbonate) and be applied to fabrics in the color-fixing process of using reactive dyes, and in other applications, such as fabric desizing, refining, and bleaching, caustic soda and waste water are still used. When discharging, due to the addition of other additives or caustic soda, ecological and environmentally friendly production cannot be guaranteed. Therefore, the process and products of this color-fixing soda have not been widely used so far.

Method used

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preparation example Construction

[0059] The preparation method is: weighing each component according to the above-mentioned formula amount for later use, and then proceeding to the preparation of step A, or performing the preparation of step A and step B in sequence, including:

[0060] A. Dispersion of nano silicon-based oxides:

[0061] Disperse the nano-silicon-based oxide in a high-shear disperser under the condition of 2000-5000 rpm for 5-30 minutes, move the dispersed nano-silicon-based oxide to a homogeneous mixer, add anhydrous partial For sodium silicate, stir homogeneously at 10-60°C for 5-30 minutes, then add sodium sulfate, rotate forward for 10-60 minutes at 100-500 rpm, then reverse for 10-60 minutes; slowly decrease Rotate to 50-100 rpm, add bead alkali, diatomaceous earth, sodium laurylsulfonate and sodium carbonate and continue to stir until uniform white powder, then pass the white powder through a 100-200 mesh sieve to obtain powder Nano diatomaceous earth treatment agent;

[0062] B. Gra...

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Abstract

The invention relates to a nano diatomite treating agent, comprising 1-5% of nano-silica-base oxide, 15-0% of diatomite, 3-10% of bead alkali, 25-30% of anhydrous sodium metasilicate, 10-25% of sodiumsulfate, 6-8% of sodium dodecylbenzene sulfonate acid, and the balance sodium carbonate. The preparation method comprises the following steps: dispersing the nano-silica-base oxide in a high shear dispersion machine, transferring into a homogenizing stirrer, homogenizing while stirring, adding anhydrous sodium metasilicate and sodium sulfate in turn, adding the bead alkali, the diatomite, the sodium dodecylbenzene sulfonate acid and the sodium carbonate, homogenizing, stirring, and screening to obtain the powder nano diatomite treating agent or pelleting to prepare into graininess. The nano diatomite treating agent has the advantages of being non-toxic, no harmful, no polluted ecological protection green product with no harmful chemical elements, simplifying technological process, being easy to operate, outputting uniform and stable quality, improving production and use environment, no changing of the original equipment of factories, saving energy, reducing comprehensive production cost, prolonging the service life of the equipment and improving quality level of products.

Description

technical field [0001] The present invention relates to the technical field of environmental protection substitute sodium hydroxide (caustic soda) process, in particular to a nano-diatomite treatment agent and a preparation method thereof, which can be replaced by the nano-diatomite treatment agent of the present invention in the field where caustic soda is originally required. It meets the technical requirements of the original process and can realize environmental protection and safe production. Background technique [0002] Sodium hydroxide (caustic soda) process and hazards: [0003] The molecular formula of sodium hydroxide is NaOH, the molecular weight is 39.997, and its common name is caustic soda, caustic soda, and caustic soda. It is called Geshi's in Hong Kong. It is a white crystal at normal temperature, which is a strong alkali and highly corrosive, and its aqueous solution is strongly alkaline. It can react violently with acid or water, release a lot of heat, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M13/256D06L1/00D06L3/00C14C5/00C11D7/02C11D7/14C11D7/12C11D7/10D21C3/02D06L4/00
Inventor 张海燕卜竹起
Owner 张海燕
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