CN101343139B - Starch type bridging agent and method of preparing the same - Google Patents
Starch type bridging agent and method of preparing the same Download PDFInfo
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- CN101343139B CN101343139B CN2008101369520A CN200810136952A CN101343139B CN 101343139 B CN101343139 B CN 101343139B CN 2008101369520 A CN2008101369520 A CN 2008101369520A CN 200810136952 A CN200810136952 A CN 200810136952A CN 101343139 B CN101343139 B CN 101343139B
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Abstract
Disclosed is a starch type bridging agent as well as a preparation method thereof, relating to a bridging agent. The bridging agent and preparation method solve the problems of high production cost and poor stability of the prepared bridging agent in the prior art. The bridging agent is made of a water phase, an oil phase, dimethyl sulfate and an addition compound, The method comprises: dripping the water phase prepared by amylose, acrylamide, sodium acrylate, dimethyl-ammonium chloride, Disodium EDTA and Na2S2O5 into the oil phase prepared and mixed by iso-paraffin solvent oil, sorbitan oleate and sorbitan oleate polyethenoxy ether, adding K2S2O6 and Na2S2O5, and then dripping the addition compound for reaction for six to ten hours, then adding dimethyl sulfate having a molar ratio of 1:1.2 to 1.6 with the addition compound for reaction for two hours, so as to acquire the bridging agent. The bridging agent and preparation method need no assistance of heating device and can save costs,and the prepared starch type bridging agent has the unchanged state as time goes by, and is noncombustible and inexplosive.
Description
Technical field
The present invention relates to a kind of bridging agent.
Background technology
Common oil phase of bridging agent and water amount ratio are 2: 5～7: 2 in the prior art, but this bridging agent instability, often there is oil phase to separate out after the placement, needs high-speed stirring before the use, and the mechano-degradation that this operation causes the breakdown of emulsion of bridging agent sometimes or causes component; This bridging agent has promptly used the oil phase of 2.5～3.5 times of waters, still can't resolve the difficulty that heat of polymerization is derived, and it is follow-up in order to obtain the higher product of effective constituent, how to realize with heating installation, not only loaded down with trivial details and consume energy higherly, cause the production cost height, the valuable product of being produced, and this bridging agent is because the oil-contg height makes transportation cost, shelter cost increase because of fire-proof and explosion-proof.
Summary of the invention
The objective of the invention is provides a kind of starch-type bridging agent and preparation method thereof in order to solve the problem of the high and bridging agent poor stability that makes of bridging agent production cost in the prior art.
Starch type bridging agent of the present invention is by water, oil phase, dimethyl suflfate, K
2S
2O
6, Na
2S
2O
5Make with addition product; Wherein the volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25, and the mol ratio of dimethyl suflfate and addition product is 1: 1.2～1.6,, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, the addition of addition product is 20%～35% of water and oil phase gross mass; Described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes; Aqueous pH values is 7.8～9.8, and wherein solute is by acrylamide, PAA, dimethyl-diallyl ammonium chloride, amylose, EDETATE SODIUM and Na
2S
2O
5Form, the total mass concentration of solute is 30%～50%, the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the solute, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be 1: 0.01～0.02; Oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester-APEO, wherein the mass ratio of sorbitan ester and sorbitan ester-APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1, and the mass ratio of sorbitan ester and sorbitan ester-APEO is 1～4: 1.
Sorbitan ester described in the present invention is span-80 or Si Ban-60; Described sorbitan ester-Soxylat A 25-7 is tween-80 or tween 85; Described isoparaffic solvent oil is 14-16 carbon stable hydrocarbon.
The preparation method of above-mentioned starch type bridging agent is as follows: one, amylose is dissolved in temperature and is that to make mass concentration in 78 ℃ the distilled water be 3%～4.5% amylose water solution, then at N
2Protection, mixing speed are gelatinization 80～100 minutes under the condition of 100～120r/min, are cooled to then room temperature, and low whipping speed is with acrylamide, PAA, dimethyl-diallyl ammonium chloride, EDETATE SODIUM and Na under the condition of 60～80r/min again
2S
2O
5Joining and making mass concentration in the cooled amylose water solution is 30～50% the aqueous solution, and regulator solution pH value is 7.8～9.8, namely gets water; Two, oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester-APEO; Three, be that the water that under the condition of 1800～2000r/min step 1 obtained is added drop-wise in 15～25 minutes time in the oil phase that step 2 obtains in nitrogen protection, mixing speed; be with homogenizer homogenizing 15～20 minutes under the condition of 2200～2800r/min in homogenization speed then; obtain the emulsion that viscosity is 530～680CP; the temperature that will make emulsion in water-bath is increased to 40～42 ℃, adds then K
2S
2O
6Stirred 5～10 minutes, and added again Na
2S
2O
5React and temperature is increased to 40～42 ℃ again after 6～10 hours, the addition product that drips then water and oil phase gross mass 20%～35% reacted 6～10 hours, adding with the addition product mol ratio is 1: 1.2～1.6 dimethyl suflfate reaction 2 hours again, namely gets the starch type bridging agent; Wherein the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the step 1, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be that the mass ratio of sorbitan ester and sorbitan ester-APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1 in 1: 0.01～0.02 step 2, the mass ratio of sorbitan ester and sorbitan ester-APEO is 1～4: 1; The volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25 in the step 3, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes.
Sorbitan ester described in the inventive method step 2 is span-80 or Si Ban-60; Sorbitan ester-Soxylat A 25-7 described in the step 2 is tween-80 or tween 85; Isoparaffic solvent oil described in the step 2 is 14-16 carbon stable hydrocarbon.
Oil phase of the present invention, water amount ratio are 0.24～0.22: 0.76～0.78, not only make the oil phase consumption reduce, reduce cost significantly, preparation process of the present invention does not need heating installation to assist, saved production cost, common bridging agent is placed for a long time, can form the situation of oily water separation, can find out the oil reservoir face of emulsion top clearly, need before the use to stir; And the form of the starch-type bridging agent for preparing among the present invention is very stable as ice-creams, can be along with the time change state, need not stir with preceding, do not fire, not quick-fried, when the present invention improves active princlple content, reduced transportation cost and shelter cost.The present invention directly carries out the reaction of the cationization of emulsion in water-in-oil emulsion, directly carry out the amine-methylated and quaternary ammoniated generation quaternary ammonium salt of amide groups in emulsion, simplifies the operation sequence of emulsion cationization.
The flopamem235 type bridging agent that starch-type bridging agent of the present invention and French SNF company are produced is configured to carry out simultaneous test behind the solution of same concentrations, two kinds of flocculation agents that in papermaking wastewater, add 4ppm, obtain identical flocculation rate, dosage less than 20% situation under, the floc sedimentation diameter of using starch-type bridging agent formation of the present invention is 40～50mm, the floc sedimentation diameter of using flopamem235 formation is 50～60mm, draw the formed floc sedimentation of starch-type bridging agent of the present invention tightr than flopamem235 thus, water separation capability is strong.
Embodiment
The specific embodiment one: the starch type bridging agent is by water, oil phase, dimethyl suflfate, K in the present embodiment
2S
2O
6, Na
2S
2O
5Make with addition product; Wherein the volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25, and the mol ratio of dimethyl suflfate and addition product is 1: 1.2～1.6,, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, the addition of addition product is 20%～35% of water and oil phase gross mass; Described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes; Aqueous pH values is 7.8～9.8, and wherein solute is by acrylamide, PAA, dimethyl-diallyl ammonium chloride, amylose, EDETATE SODIUM and Na
2S
2O
5Form, the total mass concentration of solute is 30%～50%, the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the solute, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be 1: 0.01～0.02; Oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester-APEO, wherein the mass ratio of sorbitan ester and sorbitan ester-APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1, and the mass ratio of sorbitan ester and sorbitan ester-APEO is 1～4: 1.
Embodiment two: what present embodiment and embodiment one were different is that described sorbitan ester is span-80 or Si Ban-60.Other is identical with embodiment one.
Embodiment three: what present embodiment and embodiment one were different is that described sorbitan ester-Soxylat A 25-7 is tween-80 or tween 85.Other is identical with embodiment one.
Embodiment four: what present embodiment and embodiment one were different is that described isoparaffic solvent oil is 14-16 carbon stable hydrocarbon.Other is identical with embodiment one.
Embodiment five: present embodiment and embodiment one are different is that the volume ratio of water and oil phase is 0.755～0.77: 0.225～0.24.Other is identical with embodiment one.
Embodiment six: present embodiment and embodiment one are different is that the volume ratio of water and oil phase is 0.76: 0.24.Other is identical with embodiment one.
Embodiment seven: present embodiment and embodiment one are different is that the volume ratio of water and oil phase is 0.77: 0.23.Other is identical with embodiment one.
Embodiment eight: present embodiment and embodiment one are different is that the mol ratio of methyl-sulfate and affixture is 1: 1.3～1.5.Other is identical with embodiment one.
Embodiment nine: present embodiment and embodiment one are different is that the mol ratio of methyl-sulfate and affixture is 1: 1.4, and other is identical with embodiment one.
Embodiment ten: present embodiment and embodiment one are different is that the addition of affixture is 22～34% of water and an oil phase total mass.Other is identical with embodiment one.
Embodiment 11: present embodiment and embodiment one are different is that the addition of affixture is 25～33% of water and an oil phase total mass.Other is identical with embodiment one.
Embodiment 12: present embodiment and embodiment one are different is that the addition of affixture is 28～32% of water and an oil phase total mass.Other is identical with embodiment one.
Embodiment 13: present embodiment and embodiment one are different is that the addition of affixture is 30% of water and an oil phase total mass., other is identical with embodiment one.
Embodiment 14: present embodiment and embodiment one are different is that described affixture is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.3～1.5 mass ratio to mass concentration makes.Other is identical with embodiment one.
Embodiment 15: present embodiment and embodiment one are different is that described affixture is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.4 mass ratio to mass concentration makes.Other is identical with embodiment one.
Embodiment 16: present embodiment and embodiment one are different is that the mass ratio of acrylamide and sodium acrylate is 1: 0.30.Other is identical with embodiment one.
Embodiment 17: present embodiment and embodiment one are different is that the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.16～0.29.Other is identical with embodiment one.
Embodiment 18: present embodiment and embodiment one are different is that the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.25.Other is identical with embodiment one.
Embodiment 19: present embodiment and embodiment one are different is that the mass ratio of acrylamide and amylose starch is 1: 0.12～0.23.Other is identical with embodiment one.
Embodiment 19: present embodiment and embodiment one are different is that the mass ratio of acrylamide and amylose starch is 1: 0.20.Other is identical with embodiment one.
Embodiment 20: present embodiment and embodiment one are different is that the mass ratio of acrylamide and EDTA disodium is 1: 0.02.Other is identical with embodiment one.
Embodiment 21: present embodiment and embodiment one are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 total mass and isoparaffic solvent oil is 0: 0.25～0.55: 1.Other is identical with embodiment one.
Embodiment 22: present embodiment and embodiment one are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 total mass and isoparaffic solvent oil is 0: 0.4: 1.Other is identical with embodiment one.
Embodiment 23: present embodiment and embodiment one are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 1.5～3.5: 1.Other is identical with embodiment one.
Embodiment 24: present embodiment and embodiment one are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 2～3: 1.Other is identical with embodiment one.
Embodiment 25: present embodiment and embodiment one are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 2.5: 1.Other is identical with embodiment one.
The specific embodiment 26: the preparation method of starch type bridging agent is as follows in the present embodiment: one, amylose is dissolved in temperature and is that to make mass concentration in 78 ℃ the distilled water be 3%～4.5% amylose water solution, then at N
2Protection, mixing speed are gelatinization 80～100 minutes under the condition of 100～120r/min, are cooled to then room temperature, and low whipping speed is with acrylamide, PAA, dimethyl-diallyl ammonium chloride, EDETATE SODIUM and Na under the condition of 60～80r/min again
2S
2O
5Joining and making mass concentration in the cooled amylose water solution is 30～50% the aqueous solution, and regulator solution pH value is 7.8～9.8, namely gets water; Two, oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester-APEO; Three, be that the water that under the condition of 1800～2000r/min step 1 obtained is added drop-wise in 15～25 minutes time in the oil phase that step 2 obtains in nitrogen protection, mixing speed; be with homogenizer homogenizing 15～20 minutes under the condition of 2200～2800r/min in homogenization speed then; obtain the emulsion that viscosity is 530～680CP; the temperature that will make emulsion in water-bath is increased to 40～42 ℃, adds then K
2S
2O
6Stirred 5～10 minutes, and added again Na
2S
2O
5React and temperature is increased to 40～42 ℃ again after 6～10 hours, the addition product that drips then water and oil phase gross mass 20%～35% reacted 6～10 hours, adding with the addition product mol ratio is 1: 1.2～1.6 dimethyl suflfate reaction 2 hours again, namely gets the starch type bridging agent; Wherein the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the step 1, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be 1: 0.01～0.02; The mass ratio of sorbitan ester and sorbitan ester-APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1 in the step 2, and the mass ratio of sorbitan ester and sorbitan ester-APEO is 1～4: 1; The volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25 in the step 3, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes; In the step 1 be 98% H with mass concentration
3PO
4Or mass concentration is 17% NH
4The pH value of OH regulator solution.
The flopamem235 type bridging agent that starch-type bridging agent that present embodiment is obtained and French SNF company are produced is configured to carry out simultaneous test behind the solution of same concentrations, two kinds of flocculation agents that in papermaking wastewater, add 4ppm, obtain identical flocculation rate, dosage less than 20% situation under, the floc sedimentation diameter that the starch-type bridging agent that present embodiment obtains forms is 40～50mm, the floc sedimentation diameter that flopamem235 forms is 50～60mm, draw tightr than flopamem235 of the formed floc sedimentation of starch-type bridging agent that present embodiment obtains thus, water separation capability is strong.
Embodiment 27: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and sodium acrylate is 1: 0.30 in the step 1.Other is identical with embodiment 26.
Embodiment 28: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.16～0.29 in the step 1.Other is identical with embodiment 26.
Embodiment 29: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.25 in the step 1.Other is identical with embodiment 26.
Embodiment 30: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and amylose starch is 1: 0.12～0.23 in the step 1.Other is identical with embodiment 26.
The embodiment hentriaconta-: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and amylose starch is 1: 0.20 in the step 1.Other is identical with embodiment 26.
Embodiment 32: present embodiment and embodiment 26 are different is that the mass ratio of acrylamide and EDTA disodium is 1: 0.02 in the step 1.Other is identical with embodiment 26.
Embodiment 33: present embodiment and embodiment 26 are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 total mass and isoparaffic solvent oil is 0: 0.25～0.55: 1 in the step 2.Other is identical with embodiment 26.
Embodiment 34: present embodiment and embodiment 26 are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 total mass and isoparaffic solvent oil is 0: 0.4: 1 in the step 2.Other is identical with embodiment 26.
Embodiment 35: present embodiment and embodiment 26 are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 1.5～3.5: 1 in the step 2.Other is identical with embodiment 26.
Embodiment 36: present embodiment and embodiment 26 are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 2～3: 1 in the step 2.Other is identical with embodiment 26.
Embodiment 37: present embodiment and embodiment 26 are different is that the mass ratio of sorbitan ester and sorbitan ester-Soxylat A 25-7 is 2.5: 1 in the step 2.Other is identical with embodiment 26.
Embodiment 38: what present embodiment and embodiment 26 were different is that the sorbitan ester described in the step 2 is span-80 or Si Ban-60.Other is identical with embodiment 26.
Embodiment 39: what present embodiment and embodiment 26 were different is that the sorbitan ester-Soxylat A 25-7 described in the step 2 is tween-80 or tween 85.Other is identical with embodiment 26.
Embodiment 40: what present embodiment and embodiment 26 were different is that the isoparaffic solvent oil described in the step 2 is 14-16 carbon stable hydrocarbon.Other is identical with embodiment 26.
Embodiment 41: present embodiment and embodiment 26 are different is that the volume ratio of water and oil phase is 0.75.5～0.77: 0.22.5～0.24 in the step 3.Other is identical with embodiment 26.
Embodiment 42: present embodiment and embodiment 26 are different is that the volume ratio of water and oil phase is 0.76: 0.24 in the step 3.Other is identical with embodiment 26.
Embodiment 43: present embodiment and embodiment 26 are different is that the volume ratio of water and oil phase is 0.77: 0.23 in the step 3.Other is identical with embodiment 26.
Embodiment 44: present embodiment and embodiment 26 are different is that the mol ratio of methyl-sulfate and affixture is 1: 1.3～1.5 in the step 3.Other is identical with embodiment 26.
Embodiment 45: present embodiment and embodiment 26 are different is that the mol ratio of methyl-sulfate and affixture is 1: 1.4 in the step 3, and other is identical with embodiment 26.
Embodiment 46: present embodiment and embodiment 26 are different is that the addition of affixture in the step 3 is 22～34% of water and an oil phase total mass.Other is identical with embodiment 26.
Embodiment 47: present embodiment and embodiment 26 are different is that the addition of affixture in the step 3 is 25～33% of water and an oil phase total mass.Other is identical with embodiment 26.
Embodiment 48: present embodiment and embodiment 26 are different is that the addition of affixture in the step 3 is 28～32% of water and an oil phase total mass.Other is identical with embodiment 26.
Embodiment 49: present embodiment and embodiment 26 are different is that the addition of affixture in the step 3 is 30% of water and an oil phase total mass., other is identical with embodiment 26.
Embodiment 50: present embodiment and embodiment 26 are different be the affixture described in the step 3 by mass concentration is that to be 36% formalin make by 1: 1.3～1.5 mass ratio for 30% dimethylamine agueous solution and mass concentration.Other is identical with embodiment 26.
Embodiment 51: present embodiment and embodiment 26 are different be the affixture described in the step 3 by mass concentration is that to be 36% formalin make by 1: 1.4 mass ratio for 30% dimethylamine agueous solution and mass concentration.Other is identical with embodiment 26.
Claims (10)
1. a starch type bridging agent is characterized in that the starch type bridging agent is by water, oil phase, dimethyl suflfate, K
2S
2O
6, Na
2S
2O
5Make with addition product; The preparation method of described starch type bridging agent is as follows: one, amylose is dissolved in temperature and is that to make mass concentration in 78 ℃ the distilled water be 3%～4.5% amylose water solution, then at N
2Protection, mixing speed are gelatinization 80～100 minutes under the condition of 100～120r/min, are cooled to then room temperature, and low whipping speed is with acrylamide, PAA, dimethyl-diallyl ammonium chloride, EDETATE SODIUM and Na under the condition of 60～80r/min again
2S
2O
5Joining and making mass concentration in the cooled amylose water solution is 30～50% the aqueous solution, and regulator solution pH value is 7.8～9.8, namely gets water; Two, oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester APEO; Three, be that the water that under the condition of 1800～2000r/min step 1 obtained is added drop-wise in 15～25 minutes time in the oil phase that step 2 obtains in nitrogen protection, mixing speed; be with homogenizer homogenizing 15～20 minutes under the condition of 2200～2800r/min in homogenization speed then; obtain the emulsion that viscosity is 530～680CP; the temperature that will make emulsion in water-bath is increased to 40～42 ℃, adds then K
2S
2O
6Stirred 5～10 minutes, and added again Na
2S
2O
5React and temperature is increased to 40～42 ℃ again after 6～10 hours, the addition product that drips then water and oil phase gross mass 20%～35% reacted 6～10 hours, adding with the addition product mol ratio is 1: 1.2～1.6 dimethyl suflfate reaction 2 hours again, namely gets the starch type bridging agent; Wherein the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the step 1, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be 1: 0.01～0.02; The mass ratio of sorbitan ester and sorbitan ester APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1 in the step 2, and the mass ratio of sorbitan ester and sorbitan ester APEO is 1～4: 1; The volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25 in the step 3, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes.
2. starch-type bridging agent according to claim 1 is characterized in that described sorbitan ester is span-80 or Si Ban-60.
3. starch-type bridging agent according to claim 1 is characterized in that described sorbitan ester Soxylat A 25-7 is tween-80 or tween 85.
4. starch-type bridging agent according to claim 1 is characterized in that described isoparaffic solvent oil is 14-16 carbon stable hydrocarbon.
5. the preparation method of the described starch type bridging agent of claim 1, the preparation method who it is characterized in that the starch type bridging agent is as follows: one, amylose is dissolved in temperature and is that to make mass concentration in 78 ℃ the distilled water be 3%～4.5% amylose water solution, then at N
2Protection, mixing speed are gelatinization 80～100 minutes under the condition of 100～120r/min, are cooled to then room temperature, and low whipping speed is with acrylamide, PAA, dimethyl-diallyl ammonium chloride, EDETATE SODIUM and Na under the condition of 60～80r/min again
2S
2O
5Joining and making mass concentration in the cooled amylose water solution is 30～50% the aqueous solution, and regulator solution pH value is 7.8～9.8, namely gets water; Two, oil phase is made up of isoparaffic solvent oil, sorbitan ester and sorbitan ester APEO; Three, be that the water that under the condition of 1800～2000r/min step 1 obtained is added drop-wise in 15～25 minutes time in the oil phase that step 2 obtains in nitrogen protection, mixing speed; be with homogenizer homogenizing 15～20 minutes under the condition of 2200～2800r/min in homogenization speed then; obtain the emulsion that viscosity is 530～680CP; the temperature that will make emulsion in water-bath is increased to 40～42 ℃, adds then K
2S
2O
6Stirred 5～10 minutes, and added again Na
2S
2O
5React and temperature is increased to 40～42 ℃ again after 6～10 hours, the addition product that drips then water and oil phase gross mass 20%～35% reacted 6～10 hours, adding with the addition product mol ratio is 1: 1.2～1.6 dimethyl suflfate reaction 2 hours again, namely gets the starch type bridging agent; Wherein the mass ratio of acrylamide and PAA is 1: 0.25～0.35 in the step 1, the mass ratio of acrylamide and dimethyl-diallyl ammonium chloride is 1: 0.15～0.3, the mass ratio of acrylamide and amylose is 1: 0.1～0.25, the mass ratio of acrylamide and EDETATE SODIUM is 1: 0.01～0.03, acrylamide and Na
2S
2O
5Mass ratio be 1: 0.01～0.02; The mass ratio of sorbitan ester and sorbitan ester APEO gross mass and isoparaffic solvent oil is 0: 0.2～0.6: 1 in the step 2, and the mass ratio of sorbitan ester and sorbitan ester APEO is 1～4: 1; The volume ratio of water and oil phase is 0.75～0.78: 0.22～0.25 in the step 3, addition product and K
2S
2O
6Mass ratio be 2000: 1～2, addition product and Na
2S
2O
5Mass ratio be 2000: 0.5～1, described addition product is 30% dimethylamine agueous solution by mass concentration and to be 36% formalin mix, stir 5～10min by 1: 1.2～1.6 mass ratio to mass concentration makes.
6. the preparation method of starch-type bridging agent according to claim 5 is characterized in that the sorbitan ester described in the step 2 is span-80 or Si Ban-60.
7. the preparation method of starch-type bridging agent according to claim 5 is characterized in that the sorbitan ester Soxylat A 25-7 described in the step 2 is tween-80 or tween 85.
8. the preparation method of starch-type bridging agent according to claim 5 is characterized in that the isoparaffic solvent oil described in the step 2 is 14-16 carbon stable hydrocarbon.
9. the preparation method of starch-type bridging agent according to claim 5 is characterized in that the volume ratio of water and oil phase is 0.76: 0.24 in the step 3.
10. the preparation method of starch-type bridging agent according to claim 5 is characterized in that the volume ratio of water and oil phase is 0.77: 0.23 in the step 3.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196334A (en) * | 1997-04-11 | 1998-10-21 | 广州市环境保护科学研究所 | Method for preparing cation/amphoteric graft polyacrylamide flocculating agent |
| CN1257840A (en) * | 1998-12-22 | 2000-06-28 | 顺德市杏坛镇麦村恒业精细化工厂 | High-molecular cationic flocculant of starch graft acrylamide and its preparing process |
| US7211548B2 (en) * | 2003-09-09 | 2007-05-01 | Halliburton Energy Services, Inc. | Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| EP1800545A1 (en) * | 2005-12-23 | 2007-06-27 | Nestec S.A. | Pet food and processes of producing the same |
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2008
- 2008-08-18 CN CN2008101369520A patent/CN101343139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196334A (en) * | 1997-04-11 | 1998-10-21 | 广州市环境保护科学研究所 | Method for preparing cation/amphoteric graft polyacrylamide flocculating agent |
| CN1257840A (en) * | 1998-12-22 | 2000-06-28 | 顺德市杏坛镇麦村恒业精细化工厂 | High-molecular cationic flocculant of starch graft acrylamide and its preparing process |
| US7211548B2 (en) * | 2003-09-09 | 2007-05-01 | Halliburton Energy Services, Inc. | Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| EP1800545A1 (en) * | 2005-12-23 | 2007-06-27 | Nestec S.A. | Pet food and processes of producing the same |
Non-Patent Citations (2)
| Title |
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| 陈慧玉等.接枝改性淀粉絮凝剂的制备与应用.辽宁化工33 4.2004,33(4),233-236. |
| 陈慧玉等.接枝改性淀粉絮凝剂的制备与应用.辽宁化工33 4.2004,33(4),233-236. * |
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