CN1281918A - High-effective filter and retention aid for straw pulp for making paper - Google Patents
High-effective filter and retention aid for straw pulp for making paper Download PDFInfo
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- CN1281918A CN1281918A CN 99113919 CN99113919A CN1281918A CN 1281918 A CN1281918 A CN 1281918A CN 99113919 CN99113919 CN 99113919 CN 99113919 A CN99113919 A CN 99113919A CN 1281918 A CN1281918 A CN 1281918A
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- straw pulp
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- making paper
- pulp
- retention agent
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- 230000014759 maintenance of location Effects 0.000 title claims abstract description 27
- 239000010902 straw Substances 0.000 title claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 229920002472 Starch Polymers 0.000 claims abstract description 15
- 239000008107 starch Substances 0.000 claims abstract description 15
- 235000019698 starch Nutrition 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 125000002091 cationic group Chemical group 0.000 claims abstract description 10
- 238000005886 esterification reaction Methods 0.000 claims abstract description 7
- 230000032050 esterification Effects 0.000 claims abstract description 6
- 238000006266 etherification reaction Methods 0.000 claims abstract description 6
- 239000003377 acid catalyst Substances 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- 150000001450 anions Chemical class 0.000 claims description 14
- 230000037429 base substitution Effects 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- 150000001768 cations Chemical class 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims description 4
- 239000001488 sodium phosphate Substances 0.000 claims description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 4
- 235000011008 sodium phosphates Nutrition 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000013638 trimer Substances 0.000 claims description 4
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 4
- BOMLWFWRMBFFIA-UHFFFAOYSA-M [Cl-].ClC1C=CC1[N+](C)(C)C Chemical compound [Cl-].ClC1C=CC1[N+](C)(C)C BOMLWFWRMBFFIA-UHFFFAOYSA-M 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 229910000397 disodium phosphate Inorganic materials 0.000 claims description 3
- 235000019800 disodium phosphate Nutrition 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 235000011007 phosphoric acid Nutrition 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000006798 recombination Effects 0.000 claims description 2
- 238000005215 recombination Methods 0.000 claims description 2
- PUVAFTRIIUSGLK-UHFFFAOYSA-M trimethyl(oxiran-2-ylmethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1CO1 PUVAFTRIIUSGLK-UHFFFAOYSA-M 0.000 claims description 2
- LTVDFSLWFKLJDQ-UHFFFAOYSA-N α-tocopherolquinone Chemical compound CC(C)CCCC(C)CCCC(C)CCCC(C)(O)CCC1=C(C)C(=O)C(C)=C(C)C1=O LTVDFSLWFKLJDQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 5
- 239000008186 active pharmaceutical agent Substances 0.000 abstract description 4
- 125000000129 anionic group Chemical group 0.000 abstract description 3
- 229920000881 Modified starch Polymers 0.000 abstract description 2
- -1 compound anion Chemical class 0.000 abstract description 2
- 235000019426 modified starch Nutrition 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract 2
- 239000010893 paper waste Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 235000014676 Phragmites communis Nutrition 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 240000003183 Manihot esculenta Species 0.000 description 4
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002261 Corn starch Polymers 0.000 description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical class O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 2
- 239000008120 corn starch Substances 0.000 description 2
- 229940099112 cornstarch Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical group [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CSPHGSFZFWKVDL-UHFFFAOYSA-M (3-chloro-2-hydroxypropyl)-trimethylazanium;chloride Chemical class [Cl-].C[N+](C)(C)CC(O)CCl CSPHGSFZFWKVDL-UHFFFAOYSA-M 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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- Paper (AREA)
Abstract
The high-effective filter aid and retention aid for making paper by using straw pulp is also applicable to wood pulp, waste paper pulp and compounded pulp. It mainly is a multi-component synergistic type starch derivative, and is obtained by means of three-step reaction: making alkaline catalyst, cationic etherification agent and starch to implement etherification reaction under the condition of "semi-dry" state to make substituting degree DS of cationic etherification group reach 0.030-0.070; adding compound anion agent and acid catalyst to make anionic esterification reaction under the condition of "dry" state to make substituting degree of anionic esterification group reach 0.010-0.060; then adding synergist whose dosage is 1-10% of that of starch to make synergistic reaction so as to obtain invented product which is convenient for adding in paper-making straw pulp and can obtain good filter and retention aid effect.
Description
The present invention relates to a kind of straw pulp for making paper and efficiently help filter, retention agent, also be applicable to wood pulp, secondary stock and the various slurry papermaking that is mixed thereof.
In paper-making industry, straw pulp has that fiber is short, water retention value is high, heteroproteose cell and the many characteristics of hydridization material.Fiber is short, and fiber fines is many, causes loss easily, the slurry consumption is increased, and cause mthod of white water from paper making to pollute, and therefore needs retention agent; The water retention value height can cause drainage difficulty when copying paper, influences the speed of a motor vehicle and output, breaks end easily, increases the energy consumption of drying cylinder, therefore needs filter aid; Can produce interference and impact effect to general help filter, retention agent and other chemical addition agent and heteroproteose cell and hydridization material are many.
Recently disclosed filter, the retention agent patent of helping has: WO 93/01352 contains the derivative of poly-polysaccharide (being mainly starch) of anion substituent or the compound of acrylamide polymer and aluminium compound, though effect is preferably arranged, technology is complexity; WO 91/07543, is the compound of cationic starch, cationic polyacrylamide and poly-silicic acid.Above-mentioned two kinds be not at papermaking straw pulp help filter, retention agent, be used on the papermaking straw pulp, except will adding trouble respectively, effect is also undesirable.
The objective of the invention is in order to overcome the deficiency of above-mentioned prior art, provide a kind of interpolation convenient, respond well Straw pulp For filter, retention agent.
The present invention mainly is a kind of multicomponent modified starch derivative, obtains by following three-step reaction.
The CATION etherification reaction: the cationization of starch can adopt wet method, solvent method, dry method or semidry method manufacturing, and the present invention adopts the semidry process manufacturing.With base catalyst and cationic etherifying agent mixed evenly after, spray on the starch powder, make under stirring fully to mix and be warmed up to 50～80 ℃, under " half-dried " state, carry out etherification reaction, reacted 2～6 hours, and made CATION etherificate base substitution value DS reach 0.030～0.070;
The anionization reaction: anionization can adopt wet method and dry process, and the present invention selects dry method for use.Be right after step reaction spray and add the composite anion agent, and transfer pH value to 4～8 with acid catalyst, after stirring, with the pneumatic conveying drying method material moisture content is reduced to 5～8%, be warming up to 120～140 ℃ again, be incubated 2～4 hours, under " doing " attitude, react, make anion esterification base substitution value reach 0.010～0.060, then cool to room temperature;
Recombination reaction: add the synergist of starch consumption 1～10%, and mixedly evenly carry out enhanced reaction of modification,, be the papermaking straw pulp special efficient and help filter, retention agent product through post processing.
Product of the present invention can also improve by controlling following parameter, and promptly CATION etherificate base substitution value is 0.035～0.055, and anion esterification base substitution value is 0.020～0.040, and the synergist consumption is 2～5% of an amount of starch.
Base catalyst is a kind of in potassium hydroxide, NaOH, calcium hydroxide and the magnesium hydroxide or two kinds mixture wherein, preferably selects mixture for use.
Cationic etherifying agent can be selected primary amine, secondary amine, tertiary amine, quaternary ammonium and miscellany etherifying agent for use, preferably selects the quaternary ammonium etherifying agent for use.Etherifying agent commonly used is a kind of in 4-chloro-2-cyclobutenyl trimethyl ammonium chloride, epoxypropyl trimethylammonium chloride ammonium, the 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride.
Anion substituent can be selected two kinds and two or more compounds in phosphoric acid, sodium hydrogen phosphate, sodium dihydrogen phosphate, phosphorus oxychloride and the sodium phosphate trimer in the inorganic phosphate base for use.
Acid catalyst is a kind of in phosphoric acid, sulfuric acid, the hydrochloric acid.
Synergist is the compound of polyacrylamide (PAM) and modification silicon compound such as aluminium silicate salt, and synergist should suitably be regulated according to different Papermaking Conditions.
Basic principle of the present invention is that the cationic substituent in the products molecule can prevent the interference of anionic impurity in the straw pulp system and the anion substituent in its molecule is shielded.Conversely; anion substituent in the molecule can prevent the interference of cation impurity in the straw pulp system; and the cationic substituent in its molecule is shielded; mutual coordination result between this yin, yang ion substituent; that has improved papermaking straw pulp widely helps filter, retention effect, makes more obviously effect of synergy group performance simultaneously.
One is to have cationic substituent simultaneously in the products molecule of the present invention, and anion substituent and synergy group do not need to add respectively, and be easy to use; The 2nd, product of the present invention electrically is little positive, and fiber is obviously flocculated, and influences evenness and other physical indexs of paper, and is opposite when helping filter, retention, can improve into the quality of paper effectively.
Product of the present invention not only is suitable for acid papermaking, in being applicable to too, alkaline paper-making.
Product of the present invention adopts semidry method-dry process preparation, and the direct contact probability of zwitterion reagent is low, can avoid the opposite electrically phase mutual interference between material of yin, yang effectively, thereby the reaction efficiency height, low cost of manufacture.
It is that main raw material carries out derivation process that product of the present invention adopts starch.Starch can be the product that corn, potato, cassava, barley, wheat, cassava, jowar, rice etc. are made, and makes by cationization, anionization and three steps of synergy respectively.
Accompanying drawing is a process frame chart.
Following examples are illustrated the present invention more fully, but not as limitation of the present invention.In these embodiments, except as otherwise noted, umber and percentage all are with dry weight basis.
Embodiment 1:
162 parts of extracting corn starch, 9.20 parts of 4-chloro-2-cyclobutenyl trimethyl ammonium chlorides, and with behind 2.85 parts of mixings of NaOH, with the even fusion of cornstarch, the pH value of admixture (measuring under 3% concentration) is 11.0, is warmed up to 80 ℃ under stirring, and under this temperature, be incubated 3 hours, cool to room temperature is 7.0 with the phosphoric acid pH value that neutralizes, and recording sample cation etherificate base substitution value (DS) is 0.052.
Get sodium phosphate trimer and sodium dihydrogen phosphate 3.25 and 4.6 parts respectively, add the suitable quantity of water dissolving after the mixing, and to transfer pH value with phosphoric acid be 4.5; Mix with the above-mentioned cationic starch that makes.The pH value of mixture (measuring under 3% concentration) is 5.5, with the pneumatic conveying drying method moisture content is reduced to 7% earlier, is warming up to 120～125 ℃ then, be incubated 3 hours, cool to room temperature is adjusted water content, records anion esterification base substitution value (phosphorous substituting group) DS0.038.
Above-mentioned product and synergist (mixture of a kind of PAM and aluminium silicate salt) 4% mixes, and gets this product through post processing.
Embodiment 2:
Get 162 parts of tapiocas, 8.94 parts of 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, and with behind 2.85 parts of mixings of potassium hydroxide with the even fusion of tapioca, the pH value of admixture (measuring under 3% concentration) is 11, be warming up to 80 ℃ under stirring, and under this temperature, be incubated 3 hours, cool to room temperature, with the phosphoric acid pH value that neutralizes is 7.5, and recording sample DS is 0.050.
After getting sodium hydrogen phosphate and sodium phosphate trimer 2.0 and 4.1 parts of mixing respectively, add the suitable quantity of water dissolving, and transfer PH4.5, mix with the above-mentioned cationic starch that makes with phosphoric acid.Mixture PH (measuring under 3% concentration) is 5.5, with the pneumatic conveying drying method moisture content is reduced to 6.5% earlier, is warming up to 120～125 ℃ then, keeps 3 hours, is cooled to room temperature, adjusts water content, records phosphorous substituent group D S 0.030.
Above-mentioned product and synergist (a kind of PAM and aluminium silicate salt mixture) 4% mixes, and gets product through post processing.
The application technology of the present invention in papermaking straw pulp should be specifically noted that following some:
1, the addition of product is 0.3～2.5%, and more suitable scope is 0.5～2.0 %, is preferably 0.8～1.5%;
2, the gelatinization concentration 3～7% of product is preferably in 4～6%, disperses with cold water earlier, is warming up to 90～95 ℃, is incubated 20～30 minutes;
3, the interpolation concentration 0.5～1.5% of product is preferably 0.8～1.2%;
4, adding the place will add near flow box, as header box selectifier import or export, also the product after the same gelatinization can be divided two places to add, and promptly adds 40～60% at stock tank, and all the other add near flow box.
In addition, when drainage is accelerated, can suitably improve the speed of a motor vehicle, or reduce steam consumption, to improve output or to reduce energy consumption, it is low excessively to prevent into paper moisture content; When the retention effect is good excessively, ash is too high, and when influencing paper physical intensity, can suitably reduce the addition of filler.
Effect: when product of the present invention is used in straw pulp, usually can make beating degree descend 20～30%, white water consistency descends 20～30%, fiber fines and filler retention improve 30～60%, energy consumption descends 5～10%, the speed of a motor vehicle is improved, and the whiteness of paper, opacity, smoothness, physical strength, printability are improved.
1, hand papermaking application test result in full reed pulp:
1) operating condition:
Paper pulp and auxiliary material:
Full reed pulp
Filler: talcum powder
Execute the effect agent: anion dispersion rosin size and alum
Interpolation order and addition in the reed pulp:
2) retention, help the filter effect:
In reed pulp (the manual sheet data of copying in laboratory)
| Sample | The drainage effect | The retention effect | ||
| Beating degree SR | Rate of descent % | Filler retention % | Raising rate % | |
| Blank | ????37．5 | ????-- | ????54．64 | ????-- |
| Embodiment 1 sample | ????21 | ????44．00 | ????74．49 | ????36．33 |
| Embodiment 2 samples | ????23 | ?38．67 | ????72．41 | ????32．52 |
2, practical application effect in paper plant:
1) operating condition: wet end furnish, wood pulp: reed pulp=3: 7; Fourdrinier wire, 1880 paper machines, 15～18 tons of daily output wood-free papers, the interpolation order and the addition of various chemical addition agents:
The gelatinizing method of product is by front described, and adding concentration is 1%2) effect: the test event blank value adds implements sample 1 rear growth rate (%) filler retention (%) 51.07 76.17 49.15 machine water concentration, 0.0485 0.0320-34.02 fracture lengths (m) 3,000 3,260 8.7 smoothnesses, anti-27.0 37.9 40.37 flow box beating degree SR 71 54-23.94 paper machine speeds (m/min) 117 123 5.13 of positive 30.8 48.0 55.80 (s)
Claims (7)
1, a kind of straw pulp for making paper efficiently helps filter, retention agent, it is characterized in that obtaining by following reaction:
A, CATION etherification reaction: with base catalyst and cationic etherifying agent mixed evenly after, spray on the starch powder, stirring makes and fully mixes and be warmed up to 50～80 ℃, reacts 2～6 hours, makes CATION etherificate base substitution value reach 0.030～0.070;
B, anionization reaction: and then spray adds the composite anion agent, and transfer pH value to 4～8 with acid catalyst, after stirring, with the pneumatic conveying drying method material moisture content is reduced to 5～8%, be warming up to 120～140 ℃ again, be incubated 2～4 hours, make anion esterification base substitution value reach 0.010～0.060, then cool to room temperature;
C, recombination reaction: add the synergist of starch consumption 1～10%, and mixedly evenly carry out enhanced reaction of modification,, be the papermaking straw pulp special efficient and help filter, retention agent product through post processing.
2, straw pulp for making paper as claimed in claim 1 efficiently helps filter, retention agent, it is characterized in that described CATION etherificate base substitution value is 0.035～0.055; Described anion esterification base substitution value is 0.020～0.040; Described synergist consumption is 2～5% of an amount of starch.
3, straw pulp for making paper as claimed in claim 1 efficiently helps filter, retention agent, it is characterized in that described base catalyst is a kind of in potassium hydroxide, NaOH, calcium hydroxide and the magnesium hydroxide or two kinds mixture wherein.
4, straw pulp for making paper as claimed in claim 1 efficiently helps filter, retention agent, it is characterized in that described cationic etherifying agent is a kind of in 4-chloro-2-cyclobutenyl trimethyl ammonium chloride, epoxypropyl trimethylammonium chloride ammonium, the 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride.
5, straw pulp for making paper efficiently helps filter, retention agent according to claim 1, it is characterized in that described composite anion agent is two kinds and a two or more compound in phosphoric acid, sodium hydrogen phosphate, sodium dihydrogen phosphate, phosphorus oxychloride and the sodium phosphate trimer in the Phos acidic group.
6, straw pulp for making paper as claimed in claim 1 efficiently helps filter, retention agent, it is characterized in that described acid catalyst is a kind of in phosphoric acid, sulfuric acid, the hydrochloric acid.
7, straw pulp for making paper as claimed in claim 1 efficiently helps filter, retention agent, it is characterized in that described synergist is the compound of polyacrylamide and alumino-silicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113919A CN1085278C (en) | 1999-07-27 | 1999-07-27 | High-effective filter and retention aid for straw pulp for making paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113919A CN1085278C (en) | 1999-07-27 | 1999-07-27 | High-effective filter and retention aid for straw pulp for making paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1281918A true CN1281918A (en) | 2001-01-31 |
| CN1085278C CN1085278C (en) | 2002-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99113919A Expired - Lifetime CN1085278C (en) | 1999-07-27 | 1999-07-27 | High-effective filter and retention aid for straw pulp for making paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1085278C (en) |
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| CN100572434C (en) * | 2007-06-05 | 2009-12-23 | 内江市春江纸业有限公司 | A kind of preparation method of modified starch composition |
| CN101274768B (en) * | 2008-05-19 | 2010-06-02 | 贺明波 | Electric quantity neutralization agent and preparation thereof |
| CN102020720A (en) * | 2010-11-09 | 2011-04-20 | 上高县三洪精细化工有限公司 | High branch cationic starch for papermaking wet end and preparation method thereof |
| CN102942633A (en) * | 2012-12-11 | 2013-02-27 | 广西民族大学 | Clean production method of compound modified starch |
| CN103321097A (en) * | 2013-06-27 | 2013-09-25 | 诸城同顺胶业有限公司 | Functional filler retention agent for papermaking and preparation method thereof |
| CN103469687A (en) * | 2012-06-07 | 2013-12-25 | 金东纸业（江苏）股份有限公司 | Dry strength agent, preparation method thereof and slurry using dry strength agent |
| CN103774489A (en) * | 2013-12-04 | 2014-05-07 | 安徽泾县千年古宣宣纸有限公司 | Preparation method of Chinese art paper straw pulp |
| CN103938485A (en) * | 2014-04-29 | 2014-07-23 | 金东纸业（江苏）股份有限公司 | Manufacturing method of paper sheet |
| CN105542020A (en) * | 2015-12-29 | 2016-05-04 | 杭州纸友科技有限公司 | High-substitution-degree high-molecular cationic starch, and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093510A (en) * | 1977-04-07 | 1978-06-06 | The United States Of America As Represented By The Secretary Of Agriculture | Xanthated starch amine paper additives |
| DE69224063D1 (en) * | 1991-07-02 | 1998-02-19 | Eka Chemicals Ab | METHOD FOR PRODUCING PAPER |
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1999
- 1999-07-27 CN CN99113919A patent/CN1085278C/en not_active Expired - Lifetime
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| CN111691217A (en) * | 2019-03-12 | 2020-09-22 | 瑞辰星生物技术（广州）有限公司 | Method for recovering free starch in papermaking white water |
| CN111691217B (en) * | 2019-03-12 | 2022-06-21 | 瑞辰星生物技术（广州）有限公司 | Method for recovering free starch in papermaking white water |
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Assignee: Zhiyou Science & Technology Co., Ltd., Hangzhou Assignor: Hangzhou Chemical and Engineering Institute Contract fulfillment period: 2008.7.1 to 2018.6.30 Contract record no.: 2008330000637 Denomination of invention: High-effective filter and retention aid for straw pulp for making paper Granted publication date: 20020522 License type: Exclusive license Record date: 2008.9.24 |
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