Preparation method of water-retaining agent for agricultural facilities
A water-retaining agent and facility technology, which is applied in agriculture, chemical instruments and methods, agricultural machinery and implements, etc., can solve the problems of environmental pollution stability, difficult decomposition of water-retaining agent, etc., to prevent water evaporation loss, high stability, and saving. cost effect
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Embodiment 1
[0025] A preparation method for water-retaining agent for agricultural facilities, comprising the following steps:
[0026] 1) Pulverize mussel shells, pass through a 50-mesh sieve, and then add phosphoric acid with a content of 83% to the sieved powder, wherein the mass ratio of mussel shell sieved powder to phosphoric acid is 1:0.2g / mL, React for 1 hour with assistance, control the ambient temperature at 15°C, and continue stirring for 2 hours to obtain raw material 1;
[0027] 2) Dissolve the crayfish shells with 2mol / L hydrochloric acid, filter and add 40% sodium hydroxide solution to the filter residue, wherein the mass ratio of crayfish shells to sodium hydroxide is 1:2, boil 2h, cooled to room temperature to obtain raw material 2;
[0028] 3) Mix raw materials 1 and 2 according to the ratio of 1:0.02, and stir continuously at 5° C. for 1 hour to obtain the final moisturizer.
[0029] Among them, the raw materials in raw material 2 have been pretreated, and the pretrea...
Embodiment 2
[0035] A preparation method for water-retaining agent for agricultural facilities, comprising the following steps:
[0036] 1) Pulverize the mussel shells, pass through a 60-mesh sieve, and then add phosphoric acid with a content of 85% to the sieved powder, wherein the mass of the mussel shells sifted powder and the volume ratio of phosphoric acid are 1:2g / mL. React at low temperature for 5 hours, control the ambient temperature at 20°C, and continuously stir for 10 hours to obtain raw material 1;
[0037] 2) Dissolve the crayfish shells with 2.2mol / L hydrochloric acid, filter and add 45% sodium hydroxide solution to the filter residue, wherein the volume ratio of the mass of crayfish shells to sodium hydroxide is 1:4, Boiling for 4h, cooling to room temperature to obtain raw material 2;
[0038] 3) Mix raw materials 1 and 2 according to the ratio of 1:0.05, and stir continuously at 10° C. for 3 hours to obtain the final moisturizer.
[0039] Among them, the raw materials i...
Embodiment 3
[0045] A preparation method for water-retaining agent for agricultural facilities, comprising the following steps:
[0046] 1) Pulverize mussel shells, pass through a 70-mesh sieve, and then add phosphoric acid with a content of 88% to the sieved powder, wherein the mass of mussel shells sifted powder and the volume ratio of phosphoric acid are 1:5g / mL. React at low temperature for 10 hours, control the ambient temperature at 25°C, and continuously stir for 12 hours to obtain raw material 1;
[0047]2) Dissolve the crayfish shells with 2.5mol / L hydrochloric acid, filter and add 50% sodium hydroxide solution to the filter residue, wherein the volume ratio of the mass of crayfish shells to sodium hydroxide is 1:5, Boil for 6 hours, cool to room temperature to obtain raw material 2;
[0048] 3) Mix the raw materials 1 and 2 according to the ratio of 1:0.1, and stir continuously at 15°C for 5 hours to obtain the final moisturizer.
[0049] Among them, the raw materials in raw ma...
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