A kind of preparation method of antacid almagate
The present invention relates to the preparation method of antacid almagate, the molecular formula of this antacid almagate is as follows:
Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Gastroenteropathy is one of common disease of very easily suffering from of human body, and due to its easy sick sending out, sufferer kind is more and be difficult to radical cure, has greatly damaged people's physical and mental health, is divided into following several in the market for the common medicine of gastroenteropathy treatment:
1, in and hydrochloric acid in gastric juice medicine class mainly contain tri-kinds of roter tablets, bismuth potassium citrate and Di Le, for gastric and duodenal ulcer, the patient of gastritis and hyperchlorhydria
2, gastric acid inhibitory medicine class is taking H2 receptor blocking agent as main, and conventional at present have Ranitidine HCL, famotidine and safe stomach U.S., a cimitidine.These medicines are mainly used in treating duodenal ulcer, postoperative ulcer, benign gastric ulcer, reflux esophagitis, upper gastrointestinal hemorrhage.
3, mucous membrane protection class mainly contains bismuth aluminate compound.Primary treatment Peptic Ulcers, hyperchlorhydria, gastritis, nervous indigestion, gastrointestinal spasm etc.In addition, go back adjustable gastric intestinal tympanites, improve constipation, improve a poor appetite and improve digestive function.
4, medicine for stomach dynamic class has motilium, stomach clothes peace, not husky Billy.Can increase esophagus hypomere sphincter tone, strengthen peristole, promote stomach emptying, coordinate stomach and uodenal movement, prevent bile reflux, regulate and recovery gastrointestinal motility.
Antacid almagate, there is larger surface-area, give its good antiacid effect, every gram of consumption 28.3 milliequivalent hydrochloric acid, according to external antiacid experimental result, fast 4 times than aluminium hydroxide of speed of actions, strong 8 times, faster with regard to sour agent speed of action than other, it is also long that the interior pH of stomach maintains the 3-5 time, there is no hydrochloric acid in gastric juice bounce-back.Almagate is that a kind of neutralizing effect is rapid, and neutralising capacity is powerful, and effect is lasting, anacidity rebound phenomena, and absorption cholic acid, relieving haperacidity activity does not reduce with digestive ferment (particularly stomach en-) effect, and side effect is little, safe novel antacid.This medicine has vast development prospect aspect peptic ulcer (PU) prevention and treatment.
The object of this invention is to provide a kind of preparation method of antacid almagate.This reaction scheme raw material is cheap and easy to get, and technological operation is easy, and constant product quality is controlled, is applicable to suitability for industrialized production.
The preparation of almagate utilizes the method for metathesis hydration in chemistry synthetic, wherein a kind of the most effective method is to utilize the aluminium salt of solubility, the carbonate of solubility and the magnesium salts of solubility are raw material, carry out metathesis hydration reaction and generate almagate in the aqueous solution, and typical chemical equation is:
2AlCl
3·nH
2O+6MgCl
2·nH
2O+9Na
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Similarly aluminum soluble salt can be aluminum chloride or its hydrate, aluminum nitrate, preferably aluminum chloride or its hydrate.Carbonate is sodium carbonate, preferably sodium carbonate.Magnesium salts is magnesium nitrate or magnesium chloride or its hydrate, the general preferred magnesium chloride of magnesium salts or its hydrate.
Concentration for various salts solutions is chosen in 10-50%, the general preferred 10-25% of aluminium salt, more preferably 17%.The general preferred 15-28% of carbonate, more preferably 21%.The general preferred 20-31% of magnesium salts, more preferably 26%.In the aqueous solution, react, temperature of reaction is 80-110 DEG C, preferably 90-100 DEG C.Time for adding is 1-4 hour, preferably 2-3 hour.Reaction times is 0.4-1 hour, preferably 0.5 hour.
Embodiment
Embodiment mono-:
2AlCl
3·6H
2O+6MgCl
2·6H
2O+9Na
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Get Aluminum Chloride Hexahydrate 48.28g, magnesium chloride hexahydrate 122g, is jointly dissolved in 400ml pure water and is made into the mixed salt aqueous solution, gets sodium carbonate 94.4g and is dissolved in 500ml pure water and is made into aqueous sodium carbonate.Then use volume pump by mixed salt solution and aqueous sodium carbonate being added dropwise to and being heated in 95 DEG C of reaction flasks that fill 400ml pure water at the uniform velocity simultaneously.After dripping, reaction reaches terminal, and by resultant and reaction solution, heated and stirred at 95 DEG C is processed 0.5 hour, be cooled to 50 DEG C, filter liquor obtains solid sediment, 800ml pure water water washing under room temperature, and at 100 DEG C, dry and within 4 hours, be product, yield 98%.
Embodiment bis-:
2AlCl
3·6H
2O+6MgCl
2·6H
2O+9Na
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Get Aluminum Chloride Hexahydrate 24.14Kg, magnesium chloride hexahydrate 61Kg, is jointly dissolved in 200L pure water and is made into the mixed salt aqueous solution, gets sodium carbonate 47.2Kg and is dissolved in 250L pure water and is made into aqueous sodium carbonate.Then use volume pump by mixed salt solution and aqueous sodium carbonate being added dropwise to and being heated in 95 DEG C of reaction flasks that fill 200L pure water at the uniform velocity simultaneously.After dripping, reaction reaches terminal, and by resultant and reaction solution, heated and stirred at 95 DEG C is processed 0.5 hour, be cooled to 50 DEG C, filter liquor obtains solid sediment, 400L pure water water washing under room temperature, and at 100 DEG C, dry and within 4 hours, be product, yield 98.5%.Embodiment tri-:
2AlCl
3·6H
2O+6MgCl
2·6H
2O+9K
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Get Aluminum Chloride Hexahydrate 48.28g, magnesium chloride hexahydrate 122g, is jointly dissolved in 400ml pure water and is made into the mixed salt aqueous solution, gets salt of wormwood 124.2g and is dissolved in 500ml pure water and is made into wet chemical.Then use volume pump by mixed salt solution and aqueous sodium carbonate being added dropwise to and being heated in 95 DEG C of reaction flasks that fill 400ml pure water at the uniform velocity simultaneously.After dripping, reaction reaches terminal, and by resultant and reaction solution, heated and stirred at 95 DEG C is processed 0.5 hour, be cooled to 50 DEG C, filter liquor obtains solid sediment, 800ml pure water water washing under room temperature, and at 100 DEG C, dry and within 4 hours, be product, yield 97.5%.Embodiment tetra-:
2Al(NO
3)
3·9H
2O+6Mg(NO
3)
2·6H
2O+9Na
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Get nine water aluminum nitrate 75g, magnesium nitrate hexahydrate magnesium 153.8g, is jointly dissolved in 400ml pure water and is made into the mixed salt aqueous solution, gets sodium carbonate 94.4g and is dissolved in 500ml pure water and is made into aqueous sodium carbonate.Then use volume pump by mixed salt solution and aqueous sodium carbonate being added dropwise to and being heated in 95 DEG C of reaction flasks that fill 400ml pure water at the uniform velocity simultaneously.After dripping, reaction reaches terminal, and by resultant and reaction solution, heated and stirred at 95 DEG C is processed 0.5 hour, be cooled to 50 DEG C, filter liquor obtains solid sediment, 800ml pure water water washing under room temperature, and at 100 DEG C, dry and within 4 hours, be product, yield 96%.Embodiment five:
2Al(NO
3)
3·9H
2O+6Mg(NO
3)
2·6H
2O+9K
2CO
3+H
2O→Al
2Mg
6(OH)
14(CO
3)
2·4H
2O
Get nine water aluminum nitrate 75g, magnesium nitrate hexahydrate magnesium 153.8g, is jointly dissolved in 400ml pure water and is made into the mixed salt aqueous solution, gets salt of wormwood 124.2g and is dissolved in 500ml pure water and is made into wet chemical.Then use volume pump by mixed salt solution and aqueous sodium carbonate being added dropwise to and being heated in 95 DEG C of reaction flasks that fill 400ml pure water at the uniform velocity simultaneously.After dripping, reaction reaches terminal, and by resultant and reaction solution, heated and stirred at 95 DEG C is processed 0.5 hour, be cooled to 50 DEG C, filter liquor obtains solid sediment, 800ml pure water water washing under room temperature, and at 100 DEG C, dry and within 4 hours, be product, yield 95%.