Silicate cement grinding aid and preparation method thereof

Abstract

The invention discloses a silicate cement grinding aid and a preparation method thereof. The silicate cement grinding aid is prepared from the following main raw materials by weight: 3-6 parts of sodium hexametaphosphate, 2-5 parts of aluminum sulfate, 5-8 parts of tetra sodium salt of amino trimethylene phosphonic acid (ATMP.Na4), 4-6 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 38-45 parts of polymeric alkylol amine, 34-42 parts of triisopropanolamine, 8-12 parts of waste engine oil, 2-5 parts of sodium alpha-olefin sulfonate, 10-16 parts of sorbitol, 15-20 parts of diethylene glycol, 8-13 parts of polypropylene wax, 6-10 parts of oxidized polyethlene wax, 4-8 parts of lignite wax, 20-30 parts of odium thiosulfate, 12-18 parts of sodium thiosulfate and 15-20 parts of quicklime powder. The prepared silicate cement grinding aid has the advantages that the quality is stable, the effect is remarkable, the adding amount is small, the use is simple, and the adding is more convenient and reliable to control.

Description

technical field

[0001] The invention relates to the technical field of cement production, in particular to a Portland cement grinding aid and a preparation method. Background technique

[0002] In the grinding process of cement clinker, adding a small amount of additional substances (liquid or solid substances), which can significantly improve the grinding efficiency or reduce energy consumption, without damaging the performance of cement, this kind of chemical additives is commonly called cement. Grinding aid. Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and ball formation during the grinding process, and can reduce the tendency of re-agglomeration of ultrafine particles formed during the grinding process. Cement g...

Examples

Embodiment 1

[0039] Example 1 A portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 3 parts of sodium hexametaphosphate, 2 parts of aluminum sulfate, 5 parts of tetrasodium aminotrimethylene phosphate, ethyl 4 parts of sodium diaminetetramethylene phosphate, 38 parts of polymeric alcohol amine, 34 parts of triisopropanolamine, 8 parts of waste engine oil, 2 parts of sodium α-olefin sulfonate, 10 parts of sorbitol, 15 parts of diethylene glycol, 8 parts of polypropylene wax, 6 parts of oxidized polyethylene wax, 4 parts of montan wax, 20 parts of molasses, 12 parts of sodium thiosulfate, and 15 parts of quicklime powder.

[0040] The preparation method of above-mentioned portland cement grinding aid is:

[0041] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while sti...

Embodiment 2

[0045] Example 2 A Portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 6 parts of sodium hexametaphosphate, 5 parts of aluminum sulfate, 8 parts of tetrasodium aminotrimethylene phosphate, ethyl 6 parts of sodium diamine tetramethylene phosphate, 45 parts of polymeric alcohol amine, 42 parts of triisopropanolamine, 12 parts of waste engine oil, 5 parts of sodium α-olefin sulfonate, 16 parts of sorbitol, 20 parts of diethylene glycol, 13 parts of polypropylene wax, 10 parts of oxidized polyethylene wax, 8 parts of montan wax, 30 parts of molasses, 18 parts of sodium thiosulfate, 20 parts of quicklime powder.

[0046] The preparation method of above-mentioned portland cement grinding aid is:

[0047] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while stir...

Embodiment 3

[0051] Example 3 A portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 3.5 parts of sodium hexametaphosphate, 2.5 parts of aluminum sulfate, 5.5 parts of tetrasodium aminotrimethylene phosphate, and 5 parts of sodium diamine tetramethylene phosphate, 40 parts of polymeric alcohol amine, 35 parts of triisopropanolamine, 9 parts of waste engine oil, 3 parts of sodium α-olefin sulfonate, 12 parts of sorbitol, 16 parts of diethylene glycol, 10 parts of polypropylene wax, 7 parts of oxidized polyethylene wax, 5 parts of montan wax, 24 parts of molasses, 14 parts of sodium thiosulfate, 17 parts of quicklime powder.

[0052] The preparation method of above-mentioned portland cement grinding aid is:

[0053] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while ...

technical field

[0001] The invention relates to the technical field of cement production, in particular to a Portland cement grinding aid and a preparation method. Background technique

[0002] In the grinding process of cement clinker, adding a small amount of additional substances (liquid or solid substances), which can significantly improve the grinding efficiency or reduce energy consumption, without damaging the performance of cement, this kind of chemical additives is commonly called cement. Grinding aid. Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and ball formation during the grinding process, and can reduce the tendency of re-agglomeration of ultrafine particles formed during the grinding process. Cement g...

Examples

Embodiment 1

[0039] Example 1 A portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 3 parts of sodium hexametaphosphate, 2 parts of aluminum sulfate, 5 parts of tetrasodium aminotrimethylene phosphate, ethyl 4 parts of sodium diaminetetramethylene phosphate, 38 parts of polymeric alcohol amine, 34 parts of triisopropanolamine, 8 parts of waste engine oil, 2 parts of sodium α-olefin sulfonate, 10 parts of sorbitol, 15 parts of diethylene glycol, 8 parts of polypropylene wax, 6 parts of oxidized polyethylene wax, 4 parts of montan wax, 20 parts of molasses, 12 parts of sodium thiosulfate, and 15 parts of quicklime powder.

[0040] The preparation method of above-mentioned portland cement grinding aid is:

[0041] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while sti...

Embodiment 2

[0045] Example 2 A Portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 6 parts of sodium hexametaphosphate, 5 parts of aluminum sulfate, 8 parts of tetrasodium aminotrimethylene phosphate, ethyl 6 parts of sodium diamine tetramethylene phosphate, 45 parts of polymeric alcohol amine, 42 parts of triisopropanolamine, 12 parts of waste engine oil, 5 parts of sodium α-olefin sulfonate, 16 parts of sorbitol, 20 parts of diethylene glycol, 13 parts of polypropylene wax, 10 parts of oxidized polyethylene wax, 8 parts of montan wax, 30 parts of molasses, 18 parts of sodium thiosulfate, 20 parts of quicklime powder.

[0046] The preparation method of above-mentioned portland cement grinding aid is:

[0047] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while stir...

Embodiment 3

[0051] Example 3 A portland cement grinding aid prepared from the following main raw materials in parts by weight (1 kg per part): 3.5 parts of sodium hexametaphosphate, 2.5 parts of aluminum sulfate, 5.5 parts of tetrasodium aminotrimethylene phosphate, and 5 parts of sodium diamine tetramethylene phosphate, 40 parts of polymeric alcohol amine, 35 parts of triisopropanolamine, 9 parts of waste engine oil, 3 parts of sodium α-olefin sulfonate, 12 parts of sorbitol, 16 parts of diethylene glycol, 10 parts of polypropylene wax, 7 parts of oxidized polyethylene wax, 5 parts of montan wax, 24 parts of molasses, 14 parts of sodium thiosulfate, 17 parts of quicklime powder.

[0052] The preparation method of above-mentioned portland cement grinding aid is:

[0053] (1) Take 1 / 10 of triisopropanolamine (purchased from Shijiazhuang Haisen Chemical Co., Ltd.), adjust the pH to 6.2 with 0.1mol / L glacial acetic acid, raise the temperature to 65°C, and add epoxy chlorine dropwise while ...

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