Filtering preparation method of surfactant in process of preparing manganese tungstate with different morphologies

Abstract

The invention discloses a surfactant filtering preparation method in a process of preparing manganese tungstate with different morphologies, which comprises the following steps: step 1, sodium tungstate dihydrate and manganese salt are used as initial raw materials, different surfactants are selected by a hydrothermal method to prepare a manganese tungstate nano material, and electrochemical testing is carried out; step 2, selecting surfactants, respectively selecting a series of surfactants such as polyvinylpyrrolidone (PVP), lauryl sodium sulfate (SDS) and cetyltrimethylammonium bromide (CTAB), respectively preparing manganese tungstate with different morphologies, and preliminarily determining the types of the surfactants through electrochemical testing; and step 3, selecting a proper addition amount by changing the molar ratio of the manganese salt to the surfactant to be one of 2: 1, 1: 1 and 1: 2. The invention belongs to the technical field of surfactants, and effectively solves the problem that the subsequent use efficiency is affected due to the fact that a surfactant filtering and impurity removing device cannot effectively filter and remove impurities during use.

Description

Technical Field

[0001] The invention belongs to the technical field of surfactants, and specifically refers to a method for preparing surfactants by filtering in the process of preparing manganese tungstates with different morphologies. Background Art

[0002] Surfactants, also known as interfacial agents, are compounds that can significantly reduce the surface tension or interfacial tension between two liquids, between liquid and gas, and between liquid and solid. The selection of surfactants plays a vital role in the morphology control of manganese tungstate; the amount of surfactant used will also have a significant effect on the morphology of the prepared manganese tungstate; the effect of regulating temperature and time on sample morphology: the reaction temperature and time during the reaction process will affect the morphology and electrochemical properties of the sample.

[0003] Most surfactants are commonly found in powder form, which can easily cause them to be contaminated with impurities before use.

[0004] The accumulation of impurities can easily clog the filter, the impurities are difficult to clean, and they are mixed with active agents, so they need to be collected separately and processed uniformly. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the surfactant filtering and impurity removal device cannot effectively filter and remove impurities when in use, affecting the subsequent use efficiency.

[0006] The technical solution adopted by the present invention is as follows: The surfactant filtration preparation method in the process of preparing manganese tungstate with different morphologies proposed by the present invention comprises the following steps:

[0007] Step 1: Using sodium tungstate dihydrate and manganese salt as the initial raw materials, a hydrothermal method was used to select different surfactants to prepare manganese tungstate nanomaterials, and electrochemical tests were performed;

[0008] Step 2: Selection of surfactants: Polyvinyl pyrrolidone (PVP), sodium dodecyl sulfate (SDS), and hexadecyl trimethyl ammonium bromide (CTAB) were selected to prepare manganese tungstate with different morphologies. The types of surfactants were preliminarily determined through electrochemical tests.

[0009] Step 3: Screening a suitable addition amount by changing the molar ratio of manganese salt to surfactant to one of 2:1, 1:1, and 1:2 to prepare a manganese tungstate material with excellent morphological characteristics;

[0010] Step 4: doping and modifying the prepared manganese tungstate sample with fixed morphology with metal ions;

[0011] Step 5: Compounding the manganese tungstate sample with the best performance obtained by doping with carbon-based materials and metal oxide materials in different proportions to prepare multifunctional manganese tungstate nanomaterials;

[0012] Step 6: Regulate the influence of temperature and time on sample morphology, select the optimal conditions, and prepare samples that meet the requirements;

[0013] Step 7: Using the composite multifunctional manganese tungstate nanomaterial to efficiently remove organic pollutants;

[0014] Step 8: After screening the sample, filter out the impurities.

[0015] Furthermore, the quantitative continuous addition method is adopted in step three, which can improve the efficiency of temperature gradient control in the subsequent reaction kettle and reduce the heating time.

[0016] Furthermore, in step six, the temperature is adjusted to one of 120° C., 150° C. and 180° C., and the time is adjusted to one of 12 h, 15 h and 18 h.

[0017] Furthermore, the mixture of surfactant powder in step six is ​​collected and recycled for filtration, which can avoid clogging of the screen by the raw materials.

[0018] Furthermore, in step eight, a multi-toothed sieve plate is used for auxiliary screening to avoid blockage of the filtering material due to agglomeration.

[0019] The beneficial effects achieved by the present invention using the above structure are as follows:

[0020] The residual impurities were reduced by setting up the filtration preparation of surfactants, and the effects of the type, dosage, hydrothermal reaction temperature and time of surfactants on the morphology and electrochemical properties of manganese tungstate were tested by electrochemical testing. DETAILED DESCRIPTION

[0021] Example 1: The surfactant filtration preparation method in the process of preparing manganese tungstate with different morphologies proposed by the present invention comprises the following steps:

[0022] Step 1: Using sodium tungstate dihydrate and manganese salt as the initial raw materials, a hydrothermal method was used to select different surfactants to prepare manganese tungstate nanomaterials, and electrochemical tests were performed;

[0023] Step 2: Selection of surfactants Manganese tungstates with different morphologies were prepared respectively, and the types of surfactants were preliminarily determined through electrochemical tests;

[0024] Step 3: Screening a suitable addition amount by changing the molar ratio of manganese salt to surfactant to 2:1 to prepare a manganese tungstate material with excellent morphological characteristics;

[0025] Step 4: doping and modifying the prepared manganese tungstate sample with fixed morphology with metal ions;

[0026] Step 5: Compounding the manganese tungstate sample with carbon-based materials and metal oxide materials in different proportions to prepare multifunctional manganese tungstate nanomaterials;

[0027] Step 6: Regulate the influence of temperature and time on sample morphology to prepare samples that meet the requirements;

[0028] Step 7: Using the composite multifunctional manganese tungstate nanomaterial to efficiently remove organic pollutants;

[0029] Step 8: After screening the sample, filter out the impurities.

[0030] The step three adopts a quantitative continuous addition method, which can improve the efficiency of temperature gradient control in the subsequent reaction kettle and reduce the heating time.

[0031] In step six, the temperature is adjusted to 150° C. and the adjustment time is 15 hours.

[0032] The surfactant powder mixture in step six is ​​collected and recycled for filtration to avoid clogging of the screen by the raw materials.

[0033] In step eight, a multi-toothed sieve plate is used for auxiliary screening to avoid blockage of the filter material due to agglomeration.

[0034] Example 2: The surfactant filtration preparation method in the process of preparing manganese tungstate with different morphologies proposed by the present invention comprises the following steps:

[0035] Step 1: Using sodium tungstate dihydrate and manganese salt as the initial raw materials, a hydrothermal method was used to select different surfactants to prepare manganese tungstate nanomaterials, and electrochemical tests were performed;

[0036] Step 2: Selection of surfactants Manganese tungstates with different morphologies were prepared respectively, and the types of surfactants were preliminarily determined through electrochemical tests;

[0037] Step 3: Screening a suitable addition amount by changing the molar ratio of manganese salt to surfactant to 1:1 to prepare a manganese tungstate material with excellent morphological characteristics;

[0038] Step 4: doping and modifying the prepared manganese tungstate sample with fixed morphology with metal ions;

[0039] Step 5: Compounding the manganese tungstate sample with carbon-based materials and metal oxide materials in different proportions to prepare multifunctional manganese tungstate nanomaterials;

[0040] Step 6: Regulate the influence of temperature and time on sample morphology to prepare samples that meet the requirements;

[0041] Step 7: Using the composite multifunctional manganese tungstate nanomaterial to efficiently remove organic pollutants;

[0042] Step 8: After screening the sample, filter out the impurities.

[0043] The step three adopts a quantitative continuous addition method, which can improve the efficiency of temperature gradient control in the subsequent reaction kettle and reduce the heating time.

[0044] In step six, the temperature is adjusted to 120° C. and the adjustment time is 12 hours.

[0045] The surfactant powder mixture in step six is ​​collected and recycled for filtration to avoid clogging of the screen by the raw materials.

[0046] In step eight, a multi-toothed sieve plate is used for auxiliary screening to avoid blockage of the filter material due to agglomeration.

[0047] Example 3: The surfactant filtration preparation method in the process of preparing manganese tungstate with different morphologies proposed by the present invention comprises the following steps:

[0048] Step 1: Using sodium tungstate dihydrate and manganese salt as the initial raw materials, a hydrothermal method was used to select different surfactants to prepare manganese tungstate nanomaterials, and electrochemical tests were performed;

[0049] Step 2: Selection of surfactants Manganese tungstates with different morphologies were prepared respectively, and the types of surfactants were preliminarily determined through electrochemical tests;

[0050] Step 3: Screening a suitable addition amount by changing the molar ratio of manganese salt to surfactant to 1:2 to prepare a manganese tungstate material with excellent morphological characteristics;

[0051] Step 4: doping and modifying the prepared manganese tungstate sample with fixed morphology with metal ions;

[0052] Step 5: Compounding the manganese tungstate sample with carbon-based materials and metal oxide materials in different proportions to prepare multifunctional manganese tungstate nanomaterials;

[0053] Step 6: Regulate the influence of temperature and time on sample morphology to prepare samples that meet the requirements;

[0054] Step 7: Using the composite multifunctional manganese tungstate nanomaterial to efficiently remove organic pollutants;

[0055] Step 8: After screening the sample, filter out the impurities.

[0056] The step three adopts a quantitative continuous addition method, which can improve the efficiency of temperature gradient control in the subsequent reaction kettle and reduce the heating time.

[0057] In step six, the temperature is adjusted to 180° C. and the adjustment time is 18 hours.

[0058] The surfactant powder mixture in step six is ​​collected and recycled for filtration to avoid clogging of the screen by the raw materials.

[0059] In step eight, a multi-toothed sieve plate is used for auxiliary screening to avoid blockage of the filter material due to agglomeration.

[0060] The present invention and its implementation methods are described above, but such description is not restrictive, and what is shown is only one of the implementation methods of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A method for preparing surfactant by filtering in the process of preparing manganese tungstate with different morphologies, characterized in that: The following steps are involved: Step 1: Using sodium tungstate dihydrate and manganese salt as the initial raw materials, a hydrothermal method was used to select different surfactants to prepare manganese tungstate nanomaterials, and electrochemical tests were performed; Step 2: Selection of surfactants: Polyvinyl pyrrolidone (PVP), sodium dodecyl sulfate (SDS), and hexadecyl trimethyl ammonium bromide (CTAB) were selected to prepare manganese tungstate with different morphologies. The types of surfactants were preliminarily determined through electrochemical tests. Step 3: Screening a suitable addition amount by changing the molar ratio of manganese salt to surfactant to one of 2:1, 1:1, and 1:2 to prepare a manganese tungstate material with excellent morphological characteristics; Step 4: doping and modifying the prepared manganese tungstate sample with fixed morphology with metal ions; Step 5: Compounding the manganese tungstate sample with the best performance obtained by doping with carbon-based materials and metal oxide materials in different proportions to prepare multifunctional manganese tungstate nanomaterials; Step 6: Regulate the influence of temperature and time on sample morphology, select the optimal conditions, and prepare samples that meet the requirements; Step 7: Using the composite multifunctional manganese tungstate nanomaterial to efficiently remove organic pollutants; Step 8: After screening the sample, filter out the impurities.

2. The method for preparing manganese tungstate with different morphologies by filtering surfactants according to claim 1, characterized in that: The step three adopts a quantitative continuous addition method, which can improve the efficiency of temperature gradient control in the subsequent reaction kettle and reduce the heating time.

3. The method for preparing manganese tungstate with different morphologies by filtering surfactant according to claim 1, characterized in that: In step six, the temperature is adjusted to one of 120° C., 150° C. and 180° C., and the time is adjusted to one of 12 h, 15 h and 18 h.

4. The method for preparing manganese tungstate with different morphologies by filtering surfactants according to claim 1, characterized in that: The surfactant powder mixture in step six is ​​collected and recycled for filtration to avoid clogging of the screen by the raw materials.

5. The method for preparing manganese tungstate with different morphologies by filtering surfactants according to claim 1, characterized in that: In step eight, a multi-toothed sieve plate is used for auxiliary screening to avoid blockage of the filter material due to agglomeration.