Environment-friendly attapulgite mineral desiccant

The technology of attapulgite and desiccant is applied in the field of natural mineral resource utilization, which can solve the problems of small moisture absorption, difficult degradation, environmental pollution, etc., and achieves the effects of improved moisture absorption rate, low cost and environmental friendliness

Inactive Publication Date: 2018-11-16
LANZHOU KUNLUN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, quicklime is mostly used as a desiccant, but its moisture absorption is small, and its volume expands after absorbing water. Discarding it will pollute the land and cause compaction
Silica gel can also be used. Silica gel has a large amount of moisture absorption at high temperatures, but a small amount of moisture absorption at low temperatures. It is difficult to degrade after being discarded for a long time, causing pollution to the environment, and the price is high. The production process of silica gel also pollutes the environment. Many countries and regions The use of silica gel desiccants is increasingly restricted

Method used

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  • Environment-friendly attapulgite mineral desiccant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An environment-friendly attapulgite mineral desiccant, comprising the following steps:

[0048] A. Material selection processing

[0049] The attapulgite clay is crushed after drying;

[0050] B. Dipping

[0051] Immersed in CaCl 2 or MgCl 2 In the saturated solution for 4-5 hours, drain and take out the attapulgite clay;

[0052] C. Baking

[0053] Put the attapulgite clay into an oven for baking at a temperature of 120°C-260°C for 3 hours;

[0054] E. Instant cooling

[0055] Sprinkle crushed ice on the baked attapulgite powder and stir;

[0056] F, secondary baking

[0057] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 100°C, and the roasting time is 20 minutes;

[0058] G. to crush

[0059] The baked attapulgite clay is crushed and passed through a 10-15 mesh sieve to obtain an environment-friendly attapulgite mineral desiccant.

Embodiment 2

[0061] An environment-friendly attapulgite mineral desiccant, comprising the following steps:

[0062] A. Material selection processing

[0063] The attapulgite clay is crushed after drying;

[0064] B. Dipping

[0065] Immersed in CaCl 2 or MgCl 2 In the saturated solution for 4-5 hours, drain and take out the attapulgite clay;

[0066] C. Baking

[0067] Put the attapulgite clay into an oven for baking at a temperature of 120°C-260°C for 3 hours;

[0068] E. Instant cooling

[0069] Sprinkle crushed ice on the baked attapulgite powder and stir; the amount of crushed ice accounts for 20% of the mass of attapulgite powder, spray cold water 5 times, and stir evenly after each spray;

[0070] F, secondary baking

[0071] Send the attapulgite powder into the roasting furnace for roasting, the roasting temperature is controlled at 100°C, and the roasting time is 20 minutes;

[0072] G. to crush

[0073]The baked attapulgite clay is crushed and passed through a 10-15 mesh...

Embodiment 3

[0075] An environment-friendly attapulgite mineral desiccant, comprising the following steps:

[0076] A. Material selection processing

[0077] The attapulgite clay is crushed after drying;

[0078] B. Dipping

[0079] Immersed in CaCl 2 or MgCl 2 In the saturated solution for 4-5 hours, drain and take out the attapulgite clay;

[0080] C. Baking

[0081] Put the attapulgite clay into an oven for baking at a temperature of 120°C-260°C for 3 hours;

[0082] E. Instant cooling

[0083] Sprinkle crushed ice on the baked attapulgite powder and stir; the amount of crushed ice accounts for 10% of the mass of attapulgite powder, spray cold water for 3 times, and stir evenly after each spray;

[0084] F, secondary baking

[0085] Send the attapulgite powder into the roasting furnace for roasting, the roasting temperature is controlled at 100°C, and the roasting time is 20 minutes;

[0086] G. to crush

[0087] The baked attapulgite clay is pulverized and passed through a 10...

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Abstract

The invention relates to the technical field of natural mineral resource utilization, in particular to an environment-friendly attapulgite mineral desiccant. A raw material for preparing the desiccantis attapulgite clay, wherein the attapulgite clay is a natural mineral resource easy to get and inorganic salt easy to get, not only is the cost low, but also the attapulgite clay is very similar tocarbon nano-tubes in size, shape and structural construction, the bar crystal diameter is only a dozen to dozens of nanometers, and the attapulgite clay is very exquisite and is a natural nano nonmetallic mineral material; the attapulgite clay has very high colloid performance, adsorption performance, rheological performance and catalysis performance, a very large specific surface area and certaincation exchange performance, so that the attapulgite clay is widely used as an adsorbent, a catalyst carrier, an antibacterial agent carrier and the like; a technology for preparing the desiccant issimple, the technical requirements are low, and implementing is convenient; the attapulgite mineral desiccant is a natural adsorbent, through material selection and treatment, steeping, baking and crushing, the water adsorbing capability can be effectively improved, the water adsorbing capability of the attapulgite mineral desiccant can reach 27%, moistening is avoided, the attapulgite mineral desiccant is poison-less and harmless, and a market void is filled.

Description

technical field [0001] The invention relates to the technical field of utilization of natural mineral resources, in particular to an environment-friendly attapulgite mineral desiccant. Background technique [0002] At present, quicklime is mostly used as a desiccant, but its moisture absorption is small, and its volume expands after absorbing water. Discarding it will pollute the land and cause compaction. Silica gel can also be used. Silica gel has a large amount of moisture absorption at high temperatures, but a small amount of moisture absorption at low temperatures. It is difficult to degrade after being discarded for a long time, causing pollution to the environment, and the price is high. The production process of silica gel also pollutes the environment. Many countries and regions The application of silica gel desiccant is increasingly restricted. [0003] An environmentally friendly desiccant that is safe to use, has no toxic side effects, and is environmentally fri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/30
CPCB01J20/12B01J20/30
Inventor 陶玲任珺曹天轶张倩张雪彬
Owner LANZHOU KUNLUN ENVIRONMENTAL PROTECTION TECH
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