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Calcium salt ion-loaded adsorbent for saline-alkali soil improvement

An adsorbent, salt ion technology, applied in applications, silicates, inorganic chemistry, etc., can solve the problems of uncontrollable, difficult chelation, and difficult complexation of sodium ions

Pending Publication Date: 2020-12-29
李金有 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (4) Sodium ions (Na + ) belongs to non-coordinating ion, difficult to complex, difficult to chelate;
Patent 201310589410.X soil heavy metal adsorbent only adsorbs lead, copper, cadmium, zinc, nickel, arsenic, mercury, and chromium in the soil, and cannot control sodium ions; patent 201610439333.3 is a heavy metal ion adsorbent and its preparation method and application are only For mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr), arsenic (As), manganese (Mn), copper (Cu), zinc (Zn), cobalt (Co), nickel (Ni ) and other heavy metals

Method used

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Examples

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preparation example Construction

[0033]Its preparation method includes the following steps:

[0034](1) Weigh 850 kilograms-1000 kilograms of shale opal powder as the adsorbent material into a high rotary shear mixer;

[0035](2) Weigh 50 kilograms of acidifier sulfamic acid in proportion to 850-900 kilograms of shale protein powder, and stir at high speed for 20 minutes to fully disperse;

[0036](3) Weigh 50 kg of water-soluble calcium salt, calcium chloride, and dissolve it in ethanol as a solvent material to make a saturated solution;

[0037](4) Add the saturated solution prepared in step (3) to the powder prepared in step (2), turn on the rotary cutting and stir for 30 minutes;

[0038](5) Return the material to the warehouse, let the solvent material evaporate, and then pack it for use. The calcium ion-loaded adsorbent is then produced.

[0039]The principle of the invention is: in saline-alkali land, salt ions are mainly sodium ions (Na+) In the soil, the total salt content reaches 0.45-0.55%, of which sodium ions account fo...

Embodiment 1

[0041]A calcium salt ion-loaded adsorbent for saline-alkali soil improvement. Taking one ton of finished product as an example, its mass ratio formula composition is:

[0042]Calcium chloride: 100 kg;

[0043]Shale opal powder: 800 kg;

[0044]Ethanol: 100 kg;

[0045]And acidulant: 50 kg.

Embodiment 2

[0047]A calcium salt ion-loaded adsorbent for saline-alkali soil improvement. Taking one ton of finished product as an example, its mass ratio formula composition is:

[0048]Calcium chloride: 80 kg;

[0049]Shale opal powder: 820 kg;

[0050]Ethanol: 50 kg;

[0051]And acidulant: 50 kg.

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Abstract

The invention discloses a calcium salt ion-loaded adsorbent for saline-alkali soil improvement, wherein the calcium salt ion-loaded adsorbent comprises the components in percentage by mass: 5-20 percent of water-soluble calcium salt, 70-90 percent of an adsorbent material, 3-15 percent of a solvent material and 3-6 percent of an acidifier, wherein the water-soluble calcium salt is one of calcium chloride, calcium gluconate, monocalcium phosphate, calcium nitrate, calcium bicarbonate, calcium bisulfate, calcium bisulfite, calcium hypochlorite, calcium bromide, calcium iodide, calcium chlorate,calcium perchlorate or calcium permanganate; the adsorbent material is one of montmorillonite, potassium feldspar, zeolite or shale opal; the solvent material is one of methanol or ethanol; and the acidifier is one of amino alkanoic acid, sulfamic acid, citric acid or carborane acid. According to an ionic activity principle in a saline-alkali soil solution, calcium ions are exchanged with sodium ions, and meanwhile, an adsorbent adsorbs the sodium ions, so that the harm of the sodium ions in saline-alkali soil can be reduced.

Description

Technical field[0001]The invention relates to the technical field of soil conditioners, in particular to a calcium salt ion adsorbent for improving saline-alkali soils.Background technique[0002]In addition to improving the treatment of saline-alkali land and reducing the pH value of saline-alkali land, it is very important to solve the harm of salt ions in saline-alkali land. In the treatment of saline-alkali land, the alkalinity should be treated at the same time. Among the eight major ions in saline-alkali land, the most harmful salt ion is sodium ion and magnesium ion. How to solve the harm of sodium and magnesium ions is the key to the success or failure of saline-alkali land. Among them, the most harmful is sodium ion (Na+).[0003]Characteristics of sodium ion:[0004](1) Sodium ion (Na+) The ion radius is small and difficult to filter and remove;[0005](2) Sodium ion (Na+)Radius ion radius: 0.098pm(=100pm);[0006](3) Sodium ion (Na+) Active, the sequence of metal ion activity in th...

Claims

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Application Information

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IPC IPC(8): B01J20/16B01J20/12B01J20/30C09K17/40C09K109/00C09K101/00
CPCB01J20/16B01J20/12B01J20/046C09K17/40B01J2220/4806B01J2220/4812B01J2220/42C09K2109/00C09K2101/00
Inventor 李金有于春荣李宗锴蒋凤学于琦
Owner 李金有
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