Application of a class of environmentally friendly organic compounds in soil stabilization

Abstract

The present invention discloses an application of a class of environmentally friendly organic compounds in soil solidification, wherein the molecular structure of the organic compound comprises a hydrophobic group and a hydrophilic group; wherein the hydrophobic group comprises at least one functional group, the functional group comprising one or more of -H, alkyl, alkenyl, phenyl, aryl, cycloalkyl, cycloalkenyl and C≡C; and the hydrophilic group comprises at least one functional group, the functional group comprising one or more of -H, hydroxyl, alkoxy, aldehyde, carboxyl, ester, amino, cyano, nitro, halide, anhydride, sulfoxide, epoxyalkyl, sulfonyl, sulfonamide, sulfamoyl and carbamoyl. In the application provided by the present invention, the addition amount of the organic compound in the soil solidification process is small, separation is simple, no environmental pollution is caused, and good temperature resistance is achieved. Meanwhile, the soil solidified by the compound has higher mechanical properties.

Description

Technical Field

[0001] The present invention relates to the technical field of fine chemicals and organic synthesis, and more particularly to the application of a class of environmentally friendly organic compounds in soil consolidation. Background Art

[0002] Soil stabilizers are a new energy-saving and environmentally friendly engineering material synthesized from a variety of inorganic and organic materials for solidifying various types of soil. Once mixed with soil, they transform the soil's engineering properties through a series of physical and chemical reactions. They can immobilize large amounts of free water in the soil as crystalline water, reducing the surface current of soil floccules, thinning the double electrical layer adsorbed by the floccules, increasing electrolyte concentration, and causing particles to agglomerate. Their volume expands, further filling the soil's pores. Through the compaction work, the stabilized soil becomes easier to compact and stabilize, forming a monolithic structure and achieving a compaction density unattainable by conventional methods.

[0003] The main active ingredients of soil stabilizers are divided into four types according to their chemical composition: (1) inorganic soil stabilizers; (2) organic soil stabilizers; (3) inorganic-organic composite soil stabilizers; and (4) bio-enzyme soil stabilizers. Among them, organic soil stabilizers are widely used in the international market. Their main active ingredients are currently mainly water glass, epoxy resin and polymer materials. The curing principle of this type of soil stabilizer is generally to promote the exchange of charges in soil moisture with charges in soil particles through ion exchange, and to cause ion exchange reaction, thereby reducing the water absorption effect caused by soil capillaries, soil pores and surface tension, so that the cured soil changes from "hydrophilic" to "hydrophobic", and forms a new soil structure after subsequent series of treatments (Research Progress and Application of Soil Stabilizers, China Building Materials Science and Technology, 2009, No. 1, 55-61). However, traditional organic soil stabilizers often require a large amount of addition to achieve a certain curing effect, and a large amount of soil stabilizer will lead to a decrease in the original mechanical properties of the soil.

[0004] Therefore, it is of great significance to provide an organic compound for soil solidifying agent that has a small addition amount, is simple to separate, and can provide soil with higher mechanical properties after solidification. Summary of the Invention

[0005] In response to the above issues, the present invention aims to provide an environmentally friendly organic compound for use in soil stabilization. In this application, the organic compound requires minimal addition, is easily separated, and poses no environmental pollution. Furthermore, the compound exhibits excellent temperature resistance and, after stabilization, provides soil with superior mechanical properties.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An application of an environmentally friendly organic compound in soil solidification, wherein the molecular structure of the organic compound contains a hydrophobic group and a hydrophilic group; wherein,

[0008] The hydrophobic group contains at least one functional group, and the functional group includes one or more of -H, alkyl, alkenyl, phenyl, aryl, cycloalkyl, cycloalkenyl and C≡C;

[0009] The hydrophilic group contains at least one functional group, and the functional group includes one or more of -H, hydroxyl, alkoxy, aldehyde, carboxyl, ester, amino, cyano, nitro, halogen, anhydride, sulfoxide, epoxy, sulfonyl, sulfonamide, sulfamoyl and carbamoyl.

[0010] It should be noted that the organic compound of the present invention can be used alone as a soil solidifying agent, or it can be used as a main component in combination with other commonly used adjuvants for soil solidification as a soil solidifying agent. The molecule of the organic compound is a super-hydrophilic and super-lipophilic molecule. Specifically, one end of the molecule is a super-hydrophilic group (for example, polar functional groups such as epoxy, hydroxyl, carboxyl and ester groups), which has high reactivity and is easy to form ester bonds with soil particle inorganic matter, while the other end of the molecule is a super-lipophilic group (for example, a long carbon chain C8~C 30 ), can directly and tightly combine with each other, effectively wrapping and binding the soil particles together, thereby achieving the purpose of fixing the soil.

[0011] Furthermore, the organic compound is obtained by the reaction of A and B; A and B are different; A is an alkylene oxide, an alkane or maleic anhydride; and B is a compound containing a C=C bond or a C≡C bond.

[0012] Furthermore, the compound containing a C=C bond is an unsaturated fatty acid, an olefin or maleic anhydride.

[0013] Furthermore, the olefin is C5~C 30 of olefins.

[0014] Furthermore, the olefin is a normal olefin or an internal olefin.

[0015] Furthermore, the internal olefin is one or more of internal-hexene, internal-heptene, internal-octene, internal-nonene, internal-decene, internal-undecene, internal-dodecene, internal-tridecene, internal-tetradecene, internal-pentadecaene, internal-hexadecene, internal-heptadecaene, internal-octadecene, internal-nonadecaene and internal-eicosene.

[0016] Furthermore, the n-olefin is one or more of n-hexene, n-heptene, n-octene, n-nonene, n-decene, n-undecene, n-dodecene, n-tridecene, n-tetradecene, n-pentadecaene, n-hexadecene, n-heptadecaene, n-octadecene, n-nonadecaene and n-eicosene.

[0017] Furthermore, the unsaturated fatty acids include monounsaturated fatty acids and polyunsaturated fatty acids.

[0018] Preferably, the monounsaturated fatty acid includes oleic acid (codenamed 18:19C, indicating that the molecule is an 18-carbon chain fatty acid, 1 represents a C=C double bond, and 9C represents a cis double bond between C-9 and C-10), other similar molecules such as 18:12C, 18:13C, 18:14C, 18:15C, 18:16C, 18:17C, 18:18C, 18:110C, 18:111C, 18:112C, 18:113C, 18:114C, 18:115C, 18:116C, or ricinoleic acid (cis-9-octadecenoic acid) and 12,13-epoxyoleic acid, etc.

[0019] Preferably, the polyunsaturated fatty acid contains at least 2 C=C, such as linoleic acid (or cis, cis-9,12-octadecadienoic acid) containing 2 C=C, linolenic acid (or cis, cis, cis-9,12,15-octadecatrienoic acid) containing 3 C=C and arachidonic acid (or cis, cis, cis-5,8,11,14-eicosatetraenoic acid) containing 4 C=C, etc.

[0020] Furthermore, the compound containing a C≡C bond is one or more of n-hexyne, n-heptyne, n-octyne, n-nonyne, n-decyne, n-undecyne, n-dodecyne, n-tridecyne, n-tetradecyne, n-pentadecyne, n-hexadecyne, n-heptadecyne, n-octadecyne, n-nonadecyne and n-eicosyne.

[0021] Furthermore, the alkylene oxide is propylene oxide, butylene oxide or ethylene oxide.

[0022] Furthermore, the alkane is one or more of n-hexane, cyclohexane, n-dodecane and n-hexadecane.

[0023] Furthermore, the molar ratio of A to B is 1-50:50-1; preferably 1-10:1, and more preferably 1-5:1.

[0024] Furthermore, the reaction temperature is 150-300° C. Exemplarily, the reaction temperature includes, but is not limited to, 150-250° C., 150-180° C., 180-200° C., 200-220° C., 220-250° C., and the like.

[0025] Preferably, the reaction temperature is 200°C to 250°C.

[0026] Furthermore, in the reaction, after the temperature reaches 180°C, it is raised to 200°C to 250°C at a rate of 9°C to 13°C per hour.

[0027] Preferably, in the reaction, after the temperature reaches 180°C, it is raised to 200°C to 250°C at a rate of 10°C per hour.

[0028] Furthermore, the reaction pressure is 100 kPa to 1000 kPa. Exemplarily, the reaction pressure includes but is not limited to 100 kPa to 200 kPa, 200 kPa to 400 kPa, 400 kPa to 600 kPa, 600 kPa to 800 kPa, and 800 kPa to 1000 kPa.

[0029] Preferably, the reaction pressure is 100 kPa to 200 kPa.

[0030] Furthermore, the reaction time is 5 h to 20 h. Exemplary reaction times include, but are not limited to, 5 h to 8 h, 8 h to 10 h, 10 h to 12 h, 12 h to 14 h, 14 h to 16 h, 16 h to 18 h, 18 h to 20 h, and the like.

[0031] Preferably, the reaction time is 10 h to 20 h.

[0032] Furthermore, the reaction is carried out under stirring at a stirring rate of 50 to 500 rpm. Exemplarily, the stirring rate includes but is not limited to 50 to 150 rpm, 150 to 300 rpm, 300 to 400 rpm, 400 to 500 rpm, etc.

[0033] Preferably, the reaction is carried out under stirring conditions at a stirring rate of 150 to 300 rpm.

[0034] Furthermore, the reaction is carried out under anaerobic conditions.

[0035] Furthermore, the raw materials of the reaction also include an auxiliary agent, and the auxiliary agent includes an effective ingredient; the effective ingredient includes one or two of hydroquinone, potassium halide and methylhydroquinone.

[0036] Furthermore, the active ingredient also contains 2,6-di-tert-butyl-p-cresol.

[0037] The auxiliary agent can be well used in the preparation of organic compounds. The auxiliary agent has high catalytic activity, is added in a small amount, is simple to separate, does not cause environmental pollution, and has good temperature resistance. The purity of the organic compound obtained by the reaction of the present invention is not less than 99%, the reaction yield is above 85%, and the auxiliary agent has high production practicality.

[0038] Furthermore, the catechol is hydroquinone, catechol or resorcinol.

[0039] Furthermore, the potassium halide is potassium chloride, potassium bromide or potassium iodide.

[0040] According to the specific embodiment of the present invention, the auxiliary agent is solid or liquid; preferably solid, the solid has a rough microscopic surface and a larger specific surface area.

[0041] According to the specific embodiment of the present invention, the auxiliary agent is solid, and the auxiliary agent has a thickness of ≥5m 2 / g BET surface area. Preferably, it has ≥10m 2 / g BET surface area. More preferably, with 6m 2 / g~9m 2 The BET surface area can be calculated by N2 physical adsorption analysis.

[0042] According to a specific embodiment of the present invention, the auxiliary agent is a solid and has a pore volume of 0.1 ml / g to 1.0 ml / g. Preferably, the auxiliary agent has a pore volume of 0.3 ml / g to 0.8 ml / g. More preferably, the auxiliary agent has a pore volume of 0.3 ml / g to 0.6 ml / g. The pore volume can be calculated using any suitable technique known in the art, such as, for example, the technique described in Fuel Processing Technology 135, 2015, 195-202.

[0043] According to a specific embodiment of the present invention, the molar ratio of the auxiliary agent to the total amount of reactants is 1:10-1000, preferably 1:10-100.

[0044] Furthermore, the soil is clay soil and / or loam.

[0045] Furthermore, the application includes the following steps:

[0046] The organic compound is mixed with the soil.

[0047] Furthermore, the weight of the organic compound is 0.1% to 5% of the weight of the soil.

[0048] In the present invention, "internal olefin" refers to "olefin with C=C at the internal position of the molecule".

[0049] In addition, unless otherwise specified, any range described in the present invention includes the end value and any numerical value between the end values ​​and any sub-range formed by the end value or any numerical value between the end values.

[0050] The beneficial effects of the present invention are as follows:

[0051] In the present invention, an organic compound with a specific structure is used for soil solidification. The amount of organic compound required is extremely small, and the separation is simple, no environmental pollution is caused, and the compound has good temperature resistance. At the same time, the soil can be given higher mechanical properties after being solidified by the compound. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] Figure 1 The infrared absorption spectrum of the organic compound prepared in Example 1 is shown.

[0054] Figure 2 The figure shows the appearance of the organic compound prepared in Example 1.

[0055] Figure 3 1 and 2 show a comparison of the appearance of unsolidified loam and the loam solidified with the organic compound prepared in Example 1; wherein A shows the appearance of the loam solidified with the organic compound prepared in Example 1, and B shows the appearance of the unsolidified loam. DETAILED DESCRIPTION

[0056] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments and accompanying drawings. Similar components in the accompanying drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the following detailed description is illustrative rather than restrictive and should not be used to limit the scope of protection of the present invention.

[0057] In some of the following embodiments, olefins and alkylene oxides are used as raw materials, and auxiliary agents are added to efficiently and selectively synthesize target organic compounds. The specific reaction formula is:

[0058]

[0059] In the above formula, R1 and R2 are straight-chain or branched alkyl groups, and the sum of the carbon atoms of R1 and R2 is 6 to 50.

[0060] The preparation of the above-mentioned organic compound specifically includes the following steps: uniformly mixing mixed olefins and ethylene oxide, wherein the ethylene oxide and olefins are mixed in a molar ratio of 1 to 4:1; then adding an auxiliary agent, wherein the ratio of the auxiliary agent to the total reactants is 1:10 to 1000; continuously stirring and heating, and rapidly raising the temperature to 180°C; then carrying out a catalytic reaction between 180°C and 250°C for 10 to 20 hours; after the reaction is completed, filtering out the auxiliary agent, and performing reduced pressure distillation on the solution to remove excess olefins (recovered for reuse) to obtain the organic compound.

[0061] In some of the following embodiments, olefins and maleic anhydride are used as raw materials, and auxiliary agents are added to efficiently and selectively synthesize the target organic compound. The specific reaction formula is:

[0062]

[0063] Wherein, R1 and R2 in the above formula are straight-chain or branched alkyl groups, and the sum of the number of carbon atoms of R1 and R2 is 6-50.

[0064] The preparation of the above-mentioned organic compound specifically includes the following steps: uniformly mixing mixed olefins and maleic anhydride, wherein the maleic anhydride and olefins are mixed in a molar ratio of 1:1 to 4; then adding an auxiliary agent, wherein the ratio of the auxiliary agent to the total reactants is 1:10 to 1000; continuously stirring and heating, and rapidly raising the temperature to 180°C; then carrying out a catalytic reaction between 180°C and 250°C for 10 to 20 hours; after the reaction is completed, filtering out the auxiliary agent, and performing reduced pressure distillation on the solution to remove excess olefins (recovered for reuse) to obtain the organic compound.

[0065] In some of the following embodiments, alkanes and maleic anhydride are used as raw materials, and auxiliary agents are added to efficiently and selectively synthesize the target organic compound. The specific reaction formula is:

[0066]

[0067] In the above formula, R1 and R2 are straight-chain or branched alkyl groups, and the sum of the carbon atoms of R1 and R2 is 6 to 50.

[0068] The preparation of the above-mentioned organic compound specifically includes the following steps: uniformly mixing mixed alkanes and maleic anhydride, wherein the maleic anhydride and alkanes are mixed in a molar ratio of 1:1 to 4; then adding an auxiliary agent, wherein the ratio of the auxiliary agent to the total reactants is 1:10 to 1000; continuously stirring and heating, and rapidly raising the temperature to 180°C; then carrying out a catalytic reaction between 180°C and 250°C for 10 to 20 hours; after the reaction is completed, filtering out the auxiliary agent, and performing reduced pressure distillation on the solution to remove excess alkane (which can be recovered and reused) to obtain the organic compound.

[0069] Example 1

[0070] A method for preparing an organic compound comprises the following steps:

[0071] 40g of cyclohexene, 15.3g of propylene oxide and 1.90g of 2,6-di-tert-butyl-p-cresol were weighed and added to a reaction kettle and mixed thoroughly. Nitrogen was introduced to evacuate the air. The system pressure was 200kPa and the stirring speed was set to 200r / min. The temperature was gradually increased to 180°C and then to 220°C at a rate of 10°C per hour. The reaction was continued for 16h to obtain the desired organic compound. The auxiliary agent was recycled 20 times and the conversion rate reached 88%. The color of the obtained organic compound was amber (such as Figure 2 shown).

[0072] Depend on Figure 1 It can be seen that 2900cm -1 The stretching vibration peaks of methyl CH are on the left and right, 2800 cm -1 The left and right peaks are CH stretching vibration peaks of methylene, 1900 cm -1 The stretching vibration peak of C=O is around 1800cm -1 is the stretching vibration peak of C=C, 1500cm -1 is the CH bending vibration peak, 1100 cm -1 is the stretching vibration peak of CO, 900 cm -1 Nearby is the stretching vibration peak of =CH.

[0073] Application of an organic compound: Add the organic compound of this example at 0.2% of the mass of the loam and mix. The appearance of the organic compound is compared with that of the unsolidified loam. Figure 3 shown.

[0074] Example 2

[0075] A method for preparing an organic compound comprises the following steps:

[0076] 40g of n-hexadecene, 15.3g of butylene oxide, and 3.80g of 2,6-di-tert-butyl-p-cresol were added to a reactor and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C and then to 220°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 84%. The obtained organic compound was amber in color.

[0077] Example 3

[0078] A method for preparing an organic compound comprises the following steps:

[0079] 40g of dodecene, 15.3g of ethylene oxide, and 1.90g of hydroquinone were added to a reaction kettle and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 100kPa and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C and then to 220°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, achieving a conversion rate of 80%. The obtained organic compound was amber in color.

[0080] Example 4

[0081] A method for preparing an organic compound comprises the following steps:

[0082] 40g of octadecene, 15.3g of maleic anhydride, and 1.90g of hydroquinone were added to a reaction kettle and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 300kPa and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C and then to 220°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 85%. The obtained organic compound was amber in color.

[0083] Example 5

[0084] A method for preparing an organic compound comprises the following steps:

[0085] 40g of n-hexadecane, 15.3g of maleic anhydride, and 1.90g of hydroquinone were added to a reaction kettle and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa and the stirring speed was set at 300r / min. The temperature was gradually raised to 180°C and then to 220°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. This was recycled 20 times, achieving a conversion rate of 83%. The resulting organic compound was amber in color.

[0086] Example 6

[0087] A method for preparing an organic compound comprises the following steps:

[0088] 40g of n-hexyne, 15.3g of oleic acid, and 1.90g of 2,6-di-tert-butyl-p-cresol were weighed and added to a reactor, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 12°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 86%. The resulting organic compound was amber in color.

[0089] Example 7

[0090] A method for preparing an organic compound comprises the following steps:

[0091] 40g of n-eicosane, 15.3g of maleic anhydride, and 1.90g of 2,6-di-tert-butyl-p-cresol were added to a reactor and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C and then to 210°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, achieving a conversion rate of 79%. The resulting organic compound was amber in color.

[0092] Example 8

[0093] A method for preparing an organic compound comprises the following steps:

[0094] 20g of octadecene and 20g of hexadecene, 15.3g of cyclopropane, and 1.90g of potassium bromide were added to a reaction kettle and thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 230°C at a rate of 10°C per hour. The reaction was continued for 16 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 86%. The obtained organic compound was amber in color.

[0095] Example 9

[0096] A method for preparing an organic compound comprises the following steps:

[0097] 20g of dodecene and 20g of tetradecene, 15.3g of maleic anhydride, and 1.90g of catechol were weighed and added to a reaction kettle, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 10°C per hour. The reaction was continued for 14 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 86%. The obtained organic compound was amber in color.

[0098] Example 10

[0099] A method for preparing an organic compound comprises the following steps:

[0100] 20g of hexadecene and 20g of octadecene, 15.3g of maleic anhydride, and 1.90g of catechol were weighed and added to a reaction kettle, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 10°C per hour. The reaction was continued for 14 hours to obtain an organic compound. The reaction was recycled 22 times, with a conversion rate of 88%. The resulting organic compound was amber in color.

[0101] Example 11

[0102] A method for preparing an organic compound comprises the following steps:

[0103] 20g of tetradecene and 20g of hexadecene, 15.3g of maleic anhydride, and 1.90g of catechol were weighed and added to a reaction kettle, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 10°C per hour. The reaction was continued for 14 hours to obtain an organic compound. The reaction was recycled 25 times, with a conversion rate of 87%. The obtained organic compound was amber in color.

[0104] Example 12

[0105] A method for preparing an organic compound comprises the following steps:

[0106] 20g of dodecene and 20g of octadecene, 15.3g of maleic anhydride, and 1.90g of catechol were weighed and added to a reaction kettle, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 10°C per hour. The reaction was continued for 14 hours to obtain an organic compound. The reaction was recycled 20 times, with a conversion rate of 86%. The obtained organic compound was amber in color.

[0107] Example 13

[0108] A method for preparing an organic compound comprises the following steps:

[0109] 20g of dodecene and 20g of tetradecene, 15.3g of maleic anhydride, and 1.90g of catechol were weighed and added to a reaction kettle, thoroughly mixed. Nitrogen was then introduced to evacuate the air. The system pressure was maintained at 200kPa, and the stirring speed was set at 200r / min. The temperature was gradually raised to 180°C, then to 220°C at a rate of 10°C per hour. The reaction was continued for 14 hours to obtain an organic compound. The reaction was recycled 22 times, with a conversion rate of 88%. The resulting organic compound was amber in color.

[0110] Example 14

[0111] Loam solidification experiment

[0112] The organic compounds synthesized in Examples 1 to 13 were used as curing agents for soil curing. The specific operation included: dissolving the prepared organic compounds in water to prepare a curing agent aqueous solution with a mass percentage concentration of 10%, then mixing with loam, and curing. The specific conditions and results are shown in Table 1.

[0113] Table 1:

[0114]

[0115]

[0116] It can be seen from Table 1 that after the loam is solidified using the organic compounds prepared in Examples 1-13 of the present invention, the mechanical properties of the loam are effectively improved.

[0117] Example 15

[0118] Clay soil solidification experiment:

[0119] The organic compounds synthesized in Examples 1-13 were used as curing agents for soil curing. The specific operation included: dissolving the prepared organic compounds in water to prepare a curing agent aqueous solution with a mass percentage concentration of 10%, then mixing with clay soil and curing. The specific conditions and results are shown in Table 2.

[0120] Table 2:

[0121]

[0122] It can be seen from Table 1 that after the loam is solidified using the organic compounds prepared in Examples 1-13 of the present invention, the mechanical properties of the loam are effectively improved.

[0123] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. An application of an environmentally friendly organic compound in soil solidification, characterized in that: The application comprises the following steps: Just mix the organic compounds with the loam; The weight of the organic compound is 0.1% to 8% of the total weight of the soil; The organic compound is obtained by reacting A and B; A and B are different; A is an alkylene oxide, an alkane or maleic anhydride; B is a compound containing a C=C bond or a C≡C bond; The compound containing a C=C bond is an unsaturated fatty acid, an olefin or maleic anhydride; The compound containing a C≡C bond is one or more of n-hexyne, n-heptyne, n-octyne, n-nonyne, n-decyne, n-undecyne, n-dodecyne, n-tridecyne, n-tetradecyne, n-pentadecyne, n-hexadecyne, n-heptadecyne, n-octadecyne, n-nonadecyne and n-icosyne; The alkylene oxide is one or more of propylene oxide, butylene oxide and ethylene oxide; The alkane is one or more of n-hexane, cyclohexane, n-dodecane and n-hexadecane.

2. The use according to claim 1, characterized in that The olefin is C5~C 30 of olefins.

3. The use according to claim 1, characterized in that The olefin is a normal olefin or an internal olefin.

4. The use according to claim 3, characterized in that The internal olefin is one or more of internal-hexene, internal-heptene, internal-octene, internal-nonene, internal-decene, internal-undecene, internal-dodecene, internal-tridecene, internal-tetradecene, internal-pentadecaene, internal-hexadecene, internal-heptadecaene, internal-octadecene, internal-nonadecaene and internal-eicosene.

5. The use according to claim 3, characterized in that The n-olefin is one or more of n-hexene, n-heptene, n-octene, n-nonene, n-decene, n-undecene, n-dodecene, n-tridecene, n-tetradecene, n-pentadecaene, n-hexadecene, n-heptadecaene, n-octadecene, n-nonadecaene and n-eicosene.

6. The use according to claim 1, characterized in that The unsaturated fatty acids include monounsaturated fatty acids and polyunsaturated fatty acids.

7. The use according to claim 1, characterized in that The molar ratio of the compound A to the compound B is 1-50:50-1.

8. The use according to claim 1, characterized in that The reaction temperature is 150°C to 300°C.

9. The use according to claim 1, characterized in that The reaction temperature is 200°C to 250°C.

10. The use according to claim 1, characterized in that In the reaction, after the temperature reaches 180°C, it is raised to 200°C~250°C at a rate of 9°C~13°C per hour.

11. The use according to claim 1, characterized in that The reaction pressure is 100 kPa to 1000 kPa.

12. The use according to claim 1, characterized in that The reaction pressure is 100 kPa to 200 kPa.

13. The use according to claim 1, characterized in that The reaction time is 5 h to 20 h.

14. The use according to claim 1, characterized in that The reaction time is 10 h to 20 h.

15. The use according to claim 1, characterized in that The reaction is carried out under stirring conditions at a stirring rate of 50 to 500 rpm.

16. The use according to claim 15, characterized in that The stirring rate is 150~300 rpm.

17. The use according to claim 1, characterized in that The reaction is carried out under anaerobic conditions.

18. The use according to claim 1, characterized in that The raw materials of the reaction further include an auxiliary agent, and the auxiliary agent includes an effective component; the effective component includes one or two of hydroquinone, potassium halide and methylhydroquinone.

19. The use according to claim 18, characterized in that The active ingredient also contains 2,6-di-tert-butyl-p-cresol.

20. The use according to claim 18, characterized in that The catechol is hydroquinone, catechol or resorcinol.

21. The use according to claim 18, characterized in that The potassium halide is potassium chloride, potassium bromide or potassium iodide.

22. The use according to claim 1, characterized in that The soil is clay soil and / or loam.

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