CN117346382A - Preparation of starch for hydrophobization of paper - Google Patents
Preparation of starch for hydrophobization of paper Download PDFInfo
- Publication number
- CN117346382A CN117346382A CN202311283158.XA CN202311283158A CN117346382A CN 117346382 A CN117346382 A CN 117346382A CN 202311283158 A CN202311283158 A CN 202311283158A CN 117346382 A CN117346382 A CN 117346382A
- Authority
- CN
- China
- Prior art keywords
- heat
- starch
- paper
- stream
- heat pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002472 Starch Polymers 0.000 title claims abstract description 59
- 235000019698 starch Nutrition 0.000 title claims abstract description 58
- 239000008107 starch Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000002918 waste heat Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 description 49
- 238000010586 diagram Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- FFTOUVYEKNGDCM-OWOJBTEDSA-N (e)-1,3,3-trifluoroprop-1-ene Chemical compound F\C=C\C(F)F FFTOUVYEKNGDCM-OWOJBTEDSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
Abstract
The present invention relates to the preparation of starches for the hydrophobization of paper. The invention relates to a device (1) and a method for producing starch (3) for hydrophobizing paper. The device (1) comprises a heat pump (5) which absorbs thermal energy from a waste heat stream (9) of paper manufacture of paper and outputs thermal energy for heating starch (3) to a process temperature.
Description
The present application is a divisional application of the international application number PCT/EP2017/068003, international application day 2017, 7 month 17, and the chinese national phase application of PCT international application entitled "preparation of starch for paper hydrophobization", which is application number 201780049658.3, entry into the national phase day 2019, 2 month 13, the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to a device and a method for preparing starch for hydrophobization of paper.
Background
The term "paper" also includes thick paper or paperboard herein.
The hydrophobization of paper is also called sizing of paper, and starch of various sources, mainly wheat starch, is used especially in wrapping paper and pattern paper for the hydrophobization of paper, but potato starch is also used, for example, and starch is modified for this purpose. For example, starch is transported to the paper making site in a tank wagon and activated in situ, wherein the starch is heated to the process temperature. This is usually achieved by means of live steam supplied by a steam generator.
Disclosure of Invention
The invention is based on the object of providing an improved device and an improved method for preparing starch for hydrophobization of paper.
The apparatus according to the invention for preparing starch for hydrophobization of paper comprises a heat pump which absorbs thermal energy from a waste heat stream of paper manufacture of paper and outputs thermal energy for heating starch to a process temperature.
The apparatus makes it possible to use waste heat generated in the manufacture of paper to prepare hydrophobized starch for the paper manufactured. The energy consumption and production costs of paper manufacture are thereby advantageously reduced. According to the invention, the device comprises for this purpose a heat pump which absorbs thermal energy from the waste heat stream of the paper manufacture of the paper and outputs it for heating the starch to the process temperature. In particular, the conventional heating of starch by live steam, which must be supplied by a steam generator and which leads to increased energy consumption, is thereby eliminated.
One embodiment of the invention proposes that the heat pump is a compression heat pump, having: a closed heat carrier cycle for the heat carrier; an evaporator for absorbing thermal energy of the waste heat stream by evaporating a heat carrier; an electrically driven compressor for compressing the vaporized heat carrier; and a condenser for outputting heat energy by condensing the evaporated heat carrier. The use of electrically driven compression heat pumps makes it possible in particular to produce starch independently of fossil energy sources.
Another embodiment of the invention provides that the heat pump has a regenerator (recuperator) for cooling the condensed heat carrier and for heating the evaporated heat carrier. The use of a regenerator to cool the condensed heat carrier and to heat the evaporated heat carrier advantageously enables an increase in coefficient of performance (COP = coefficient of performance), i.e. the ratio of the generated heat output to the power used by the heat pump. For example, the coefficient of performance of the heat pump may be increased by about 15% by the regenerator.
Another embodiment of the invention provides that the heat carrier is refrigerant R-1233zd or refrigerant R-1336mzz. R-1233zd refers to trans-1-chloro-3, 3-trifluoropropene (CAS number 102687-65-0). R-1336mzz refers to cis-1, 4-hexafluoro-2-butene (CAS number 692-49-9). These heat carriers can advantageously be condensed at high temperature and at the same time under suitable pressure. In addition, these heat carriers are not flammable, non-toxic and therefore have particular environmental advantages.
Another embodiment of the invention provides a preheater for preheating the starch to a preheating temperature before heating the starch to the process temperature. The preheater transfers the thermal energy of the waste heat stream cooled by the heat pump onto the starch. By means of such a preheater, the thermal energy of the waste heat stream can be utilized more efficiently.
Another embodiment of the invention provides that the process temperature is about 125 ℃. The application of starch to hydrophobize paper is advantageously achieved by heating the starch to a process temperature of about 125 ℃ without additional heating of the starch.
Another embodiment of the invention provides that the waste heat stream is an exhaust gas stream or a contaminated steam stream or a liquid condensate stream of the dryer section of the paper machine. These embodiments of the invention advantageously enable the typical waste heat streams produced in paper manufacture to be used for paper hydrophobization.
Another embodiment of the invention provides a heat transmitter for directly outputting thermal energy to the starch by means of a heat pump. An alternative embodiment of the invention provides a heat transfer intermediate circuit for transferring the heat energy output by the heat pump to the starch. The direct output of thermal energy to the starch by the heat pump achieves a higher coefficient of performance of the heat pump than by the output of the heat transfer intermediate circuit and thus a more efficient use of the waste heat stream. However, the indirect transfer of thermal energy via the heat pump via the heat transfer intermediate circuit achieves or simplifies the addition of a heat pump to an existing paper machine for paper hydrophobization.
In the method according to the invention for producing starch for hydrophobization of paper, heat energy is absorbed from the waste heat stream of paper manufacture of paper by means of a heat pump and is output for heating the starch to the process temperature. The advantages of this method correspond to the above-mentioned advantages of the device according to the invention for preparing starch for hydrophobization of paper.
The paper machine according to the invention has a device according to the invention for preparing starch for hydrophobization of paper. The advantages of such a paper machine result from the above-mentioned advantages of the device according to the invention for preparing starch for hydrophobization of paper.
Drawings
The above-mentioned properties, features and advantages of the present invention and how to implement them will become more apparent and understood in conjunction with the following detailed description of embodiments according to the accompanying drawings. Wherein is shown:
figure 1 schematically shows a paper machine with a first embodiment of an apparatus for preparing starch for hydrophobization of paper,
figure 2 shows an enthalpy pressure diagram of the heat carrier,
figure 3 shows a second embodiment of an apparatus for preparing starch for hydrophobization of paper,
fig. 4 shows a third embodiment of an apparatus for preparing starch for hydrophobization of paper.
The components corresponding to each other are provided with the same reference numerals in the figures.
Detailed Description
Fig. 1 schematically shows a paper machine 100 with a first embodiment of an apparatus 1 for preparing starch 3 for hydrophobization of paper. The apparatus 1 comprises a heat pump 5 and a heat transmitter 7.
The heat pump 5 absorbs heat energy from the waste heat stream 9 of the paper manufacture of the paper and outputs the heat energy in the heat conveyor 7 to the starch 3. Waste heat stream 9 is, for example, the exhaust gas stream of dryer section 102 of paper machine 100. Alternatively, the waste heat stream 9 may also be a contaminated steam stream generated during paper manufacture or a liquid condensate stream generated during paper manufacture of paper. The waste heat stream 9 is cooled by the heat pump 5, for example from about 100 ℃ to about 80 ℃. The starch 3 is heated in the heat conveyor 7, for example from about 20 c to a hydrophobizing temperature of about 125 c.
The heat pump 5 is a high temperature heat pump implemented as a compression heat pump. The heat pump 5 comprises a closed heat carrier cycle 11, an evaporator 13, an electrically driven compressor 15, a condenser 17, an expansion unit 19 and a regenerator 21.
The heat carrier circulates in a heat carrier cycle 11. The heat carrier is, for example, a halogenated hydrocarbon. Particularly preferably, the heat carrier is refrigerant R-1233zd or refrigerant R-1336mzz. In the evaporator 13, the heat carrier is evaporated while absorbing thermal energy from the waste heat stream 9. The compressor 15 compresses the heat carrier and thereby causes the heat carrier to circulate in the heat carrier cycle 11. In the condenser 17, the heat carrier is condensed while outputting the condensation heat. The condenser 17 is integrated into the heat transmitter 7 such that the heat of condensation is directly output to the starch 3 and the starch 3 is heated to the process temperature. The expansion unit 19 expands the heat carrier to a reduced pressure p. The regenerator 21 cools the condensed heat carrier and heats the evaporated heat carrier.
Fig. 2 shows by way of example an enthalpy diagram of the heat carrier 3 of the heat pump 5 of the device 1 shown in fig. 1, wherein the heat carrier is R1233zd in this example. The abscissa of the enthalpy-pressure diagram plots the specific enthalpy h in kJ/kg. The pressure p is plotted logarithmically in bar (bar) on the ordinate. The figure shows a family of curves of isotherms 27, wherein the temperature of the heat carrier is given in degrees celsius above the respective isotherm 27. The point on the isotherm 27 where the slope of the isotherm 27 changes abruptly corresponds to the phase boundary of the heat carrier. These points are connected by a phase boundary curve 29. Isentropic lines 31 are also shown. The numbers at the isentropic lines 31 give the specific entropy of the heat carrier on the isentropic lines 31 in kJ/(kg.K).
Fig. 2 also shows the thermodynamic cycle process of the heat carrier in the heat carrier cycle 11 with process points 33 to 36. Between the process points 33 and 34, a variable compression of the heat carrier is achieved by the compressor 15. Between the process points 34 and 35, isobaric cooling and liquefaction of the heat carrier is achieved by the condenser 17 and regenerator 21. Between the process points 35 and 36, expansion of the heat carrier is effected by the expansion unit 19. Between the process points 36 and 33, isobaric evaporation and heating of the heat carrier is achieved by the evaporator 13 and regenerator 21.
The heat carrier is present as a liquid in the left region of the enthalpy-pressure diagram. Thus, the isotherm 27 rises very steeply there. In the right region of the figure, the heat carrier exists as a gas, and the isotherm 27 slowly decreases as the specific enthalpy h increases.
Fig. 3 shows a second embodiment of the device 1 for preparing starch 3 for hydrophobization of paper. This embodiment differs from the embodiment shown in fig. 1 only in that the condenser 17 of the heat pump 5 is not integrated into the heat transmitter 7, but is connected to the heat transmitter 7 via a heat transmission intermediate circuit 23. Accordingly, in the condenser 17, the condensation heat output from the heat carrier is not directly output to the starch 3, but is transported from the heat transfer intermediate circuit 23 to the heat transmitter 7 and output to the heat carrier. The heat transfer intermediate circuit 23 contains a transfer medium, such as water, for transferring heat energy from the condenser 17 to the heat transfer device 7. While the intermediate connection of the heat transfer intermediate circuit 23 reduces the coefficient of performance of the heat pump 5 relative to the first embodiment shown in fig. 1, it achieves or simplifies the addition of the heat pump 5 to the existing paper machine 100 for the hydrophobization of the paper.
Fig. 4 shows a third embodiment of the apparatus 1 for preparing starch 3 for hydrophobization of paper. This embodiment differs from the embodiment shown in fig. 1 only in an additional preheater 25 for preheating the starch 3 to a preheating temperature before the starch 3 is heated to the process temperature in the heat conveyor 7. The preheater 25 transfers heat energy from the waste heat stream 9 cooled by the evaporator 13 to the starch 3. For example, the starch 3 in the preheater 25 is heated from about 20℃ to about 75℃. Thereby, the thermal energy of the waste heat stream 9 can be utilized more efficiently and the residence time of the starch 3 in the heat conveyor 7 for heating the starch 3 to the process temperature can be shortened. Accordingly, the embodiment shown in fig. 3 can also be extended by a preheater 25.
While the invention has been illustrated and described in detail with reference to preferred embodiments, the invention is not limited to the examples disclosed and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.
Claims (10)
1. An apparatus (1) for preparing starch (3) for hydrophobization of paper, the apparatus (1) comprising a heat pump (5) which absorbs thermal energy from a waste heat stream (9) of paper manufacture of the paper and outputs thermal energy for heating the starch (3) to a process temperature.
2. The device (1) according to claim 1, characterized in that the heat pump (5) is a compression heat pump (5) having: a closed heat carrier cycle (11) for a heat carrier; -an evaporator (13) for absorbing thermal energy of the waste heat stream (9) by evaporating the heat carrier; an electrically driven compressor (15) for compressing the vaporized heat carrier; and a condenser (17) for outputting heat energy by condensing the evaporated heat carrier.
3. The device (1) according to claim 2, characterized in that the heat pump (5) has a regenerator (21) for cooling the condensed heat carrier and heating the evaporated heat carrier.
4. A device (1) according to claim 2 or 3, characterized in that the heat carrier is refrigerant R-1233zd or refrigerant R-1336mzz.
5. The apparatus (1) according to any one of the preceding claims, characterized by a preheater (25) for preheating the starch (3) to a preheating temperature before heating the starch (3) to the process temperature, wherein the preheater (25) transfers the thermal energy of the waste heat stream (9) cooled by the heat pump (5) onto the starch (3).
6. The apparatus (1) according to any one of the preceding claims, wherein the process temperature is about 125 ℃.
7. The apparatus (1) according to any of the preceding claims, characterized in that the waste heat stream (9) is an exhaust gas stream or a contaminated steam stream or a liquid condensate stream of a drying section (102) of a paper machine (100).
8. Device (1) according to any of the preceding claims, characterized by a heat transmitter (7) for outputting thermal energy directly to the starch (3) by means of the heat pump (5).
9. The device (1) according to any one of claims 1 to 7, characterized by a heat transfer intermediate circuit (23) for transferring thermal energy output by the heat pump (5) to the starch (3).
10. A method for producing starch (3) for hydrophobization of paper, wherein heat energy is absorbed from a waste heat stream (9) of paper manufacture of the paper by a heat pump (5) and is output for heating the starch (3) to a process temperature.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16188670.0A EP3296666A1 (en) | 2016-09-14 | 2016-09-14 | Treatment of starch for hydrophobisation of paper |
| EP16188670.0 | 2016-09-14 | ||
| CN201780049658.3A CN109642758A (en) | 2016-09-14 | 2017-07-17 | The preparation of starch for paper hydrophobization |
| PCT/EP2017/068003 WO2018050317A1 (en) | 2016-09-14 | 2017-07-17 | Starch processing for water repellent treatment of paper |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780049658.3A Division CN109642758A (en) | 2016-09-14 | 2017-07-17 | The preparation of starch for paper hydrophobization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117346382A true CN117346382A (en) | 2024-01-05 |
Family
ID=57130147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311283158.XA Pending CN117346382A (en) | 2016-09-14 | 2017-07-17 | Preparation of starch for hydrophobization of paper |
| CN201780049658.3A Pending CN109642758A (en) | 2016-09-14 | 2017-07-17 | The preparation of starch for paper hydrophobization |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780049658.3A Pending CN109642758A (en) | 2016-09-14 | 2017-07-17 | The preparation of starch for paper hydrophobization |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP3296666A1 (en) |
| CN (2) | CN117346382A (en) |
| ES (1) | ES2834075T3 (en) |
| WO (1) | WO2018050317A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4327790A1 (en) | 2022-08-25 | 2024-02-28 | Corman SpA | Biodegradable absorbent product |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721575A (en) * | 1971-01-05 | 1973-03-20 | Nat Starch Chem Corp | Continuous process for the preparation of modified starch dispersions |
| DE3612907A1 (en) * | 1986-04-17 | 1987-11-12 | Thermo Consulting Heidelberg | PLANT FOR RECOVERY OF WASTE HEAT CONTAINED IN THE EXHAUST OF DRYERS FROM PAPER MACHINES |
| US5061345A (en) * | 1991-02-21 | 1991-10-29 | Green Bay Packaging Inc. | Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste |
| SE524281C2 (en) * | 2001-09-06 | 2004-07-20 | Stora Enso Ab | Surface treatment composition, including starch particles, method of making paper or paperboard, paper or board and use of a surface treatment composition |
| FR2898897B1 (en) * | 2006-03-21 | 2012-06-15 | Roquette Freres | NOVEL METHOD AND DEVICE FOR COOKING AMYLACEOUS MATERIAL WITH HIGH DRIED MATERIALS FOR PREPARING AN ADHESIVE COMPOSITION |
| AT506077B1 (en) * | 2008-01-29 | 2009-06-15 | Andritz Ag Maschf | WASTE USE IN THE DRY PART OF PAPER MACHINES |
| WO2010119642A1 (en) * | 2009-04-13 | 2010-10-21 | パナソニック株式会社 | Heat pump type heating device |
| CN101818454B (en) * | 2010-02-09 | 2011-11-16 | 广西大学 | Waterproof and oil-proof agent prepared by using fluorocarbon grated starch and preparation method thereof |
| CN102154919A (en) * | 2010-12-03 | 2011-08-17 | 江门市高力依科技实业有限公司 | Papermaking preparation method |
| US10662583B2 (en) * | 2014-07-29 | 2020-05-26 | Siemens Aktiengesellschaft | Industrial plant, paper mill, control device, apparatus and method for drying drying-stock |
| CN104456610B (en) * | 2014-12-02 | 2017-10-17 | 新疆工程学院 | A kind of flue gas waste heat recovery system of steam jet heat pump circulation |
| CN204987434U (en) * | 2015-06-19 | 2016-01-20 | 浙江益纸淀粉有限公司 | A heating water tank for papermaking starch production |
| CN105627727A (en) * | 2015-12-24 | 2016-06-01 | 衡山县逢缘草艺开发有限责任公司 | Drying system |
-
2016
- 2016-09-14 EP EP16188670.0A patent/EP3296666A1/en not_active Withdrawn
-
2017
- 2017-07-17 WO PCT/EP2017/068003 patent/WO2018050317A1/en unknown
- 2017-07-17 ES ES17746414T patent/ES2834075T3/en active Active
- 2017-07-17 EP EP17746414.6A patent/EP3475631B1/en active Active
- 2017-07-17 CN CN202311283158.XA patent/CN117346382A/en active Pending
- 2017-07-17 CN CN201780049658.3A patent/CN109642758A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP3475631B1 (en) | 2020-08-26 |
| EP3475631A1 (en) | 2019-05-01 |
| WO2018050317A1 (en) | 2018-03-22 |
| EP3296666A1 (en) | 2018-03-21 |
| ES2834075T3 (en) | 2021-06-16 |
| CN109642758A (en) | 2019-04-16 |
| BR112019004432A2 (en) | 2019-05-28 |
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