CN114225438A - 一种三氯蔗糖锡酯连续浓缩的方法 - Google Patents
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Abstract
本发明涉及一种三氯蔗糖锡酯连续浓缩方法,其特征在于:(1)检查各设备;(2)开启环己烷相打料泵,将环乙烷相打入单效蒸发器;(3)缓慢开启单效加热器热水阀门,开启真空泵、循环泵,开启冷凝器循环水、盐水阀门,控制单效蒸发器的温度为60~70℃、真空度在‑0.088~‑0.095KPa;(4)顶部出来的轻相经冷凝后进入环乙烷储槽;(5)单效蒸发器底部重相采出至浓缩釜再次浓缩,控制浓缩釜温度为60~70℃、真空度在‑0.060~‑0.065KPa;(6)浓缩1‑1.5h后取样测锡酯水分,低于3%则送至浓缩后锡酯储槽,随后送至酯化岗位套用。本发明优点:本发明在连续浓缩回收中,能够大大的降低副反应,减少锡酯的损耗,使得成本得到节约。
Description
技术领域
本发明属三氯蔗糖生产技术领域,涉及一种三氯蔗糖锡酯连续浓缩的方法。
背景技术
三氯蔗糖作为一种新型的甜味食品添加剂,它比蔗糖、糖精、AK糖、阿斯巴甜、甜叶菊苷等更具优点,它安全性高、性能稳定,是一种新型的高质量、非营养型高效甜味剂,是肥胖症、心血管疾病和糖尿病患者食品的最佳理想甜味替代品;也属于精细化工产品领域,是食品添加剂的分支产品。它不仅在保健食品和医药中的应用范围迅速扩大,而且广泛应用于烘烤食品、饮料、口香咖啡、乳制品、冷冻点心、冰淇淋、布丁、果冻、果酱、糖浆等300多种加工制品中,目前已被市场广泛接受并成为最受欢迎的高倍甜味剂之一。
在酯化工段,锡酯浓缩是回收套用锡酯的一道工序,其目的是将溶解在环己烷相中的锡酯进行提浓回收套用,降低原料锡粉的消耗。酯化反应的好坏就取决于催化剂锡酯的质量;酯化釜的投釜量就取决于锡酯的供给是否及时。所以提高锡酯回收质量和缩短回收时间是必须的。
发明内容
本发明的目的是为了解决现有锡酯回收中存在的回收时间过长、回收锡酯水分高等不足,提供一种三氯蔗糖锡酯连续浓缩装置及方法。
为了实现上述目的,本发明采用的技术方案如下:
一种三氯蔗糖锡酯连续浓缩方法,其特征在于包括如下步骤:
(1)检查打料泵、真空泵、单效蒸发器、冷凝器、循环水等设备是否完好;
(2)开启环己烷相打料泵,将环己烷相储槽的环乙烷相以2500~3000L/h打入单效蒸发器内;
(3)缓慢开启单效加热器热水阀门调节温度,开启真空泵,开启单效循环泵,开启冷凝器循环水、盐水阀门,进行蒸发浓缩,控制单效蒸发器的温度60~70℃、真空度在-0.088~-0.095KPa;
(4)单效蒸发器顶部出来的轻相(环乙烷)经冷凝后进入环乙烷储槽(采出量以1000~1500L/h),随后进入萃取岗位;
(5)单效蒸发器底部重相以1000~1200 L/h采出送至浓缩釜进行再次浓缩,控制浓缩釜的温度为60~70℃、真空度在-0.060~-0.065KPa;
(6)浓缩1-1.5h后取样测锡酯水分,低于3%则送至浓缩后锡酯储槽,随后送至酯化岗位套用;否则继续浓缩0.5h再取样,直到合格。
本发明主要是利用不同浓缩设备的蒸发浓缩效率不同,并结合物料本身的特性,根据工艺特性选择合适的浓缩设备,配套使用,从而来提高浓缩效率。
相对于现有技术,本发明具有如下优点:
酯化反应的好坏就取决于催化剂锡酯的质量;酯化釜的投釜量就取决于锡酯的供给是否及时;锡酯的高效率回收就可以促进酯化反应和酯化投釜数的提高。本发明在连续浓缩回收中,能够大大的降低副反应,减少锡酯的损耗,降低了原料锡粉的使用量(回收锡粉的时间由原来的5-5.5h降至2.5-3h),使得成本得到节约。
附图说明
图1为本发明所述的一种三氯蔗糖锡酯连续浓缩工艺简图;
图2为原三氯蔗糖锡酯浓缩工艺简图。
具体实施方式
结合图1,对本发明作进一步地说明:
一种三氯蔗糖锡酯连续浓缩方法,具体实施步骤如下:
(1)检查打料泵、真空泵、单效蒸发器、冷凝器、循环水等设备是否完好;
(2)开启环己烷相打料泵,将环己烷相储槽的环乙烷相以2800L/h打入单效蒸发器内;
(3)缓慢开启单效加热器热水阀门调节温度,开启真空泵,开启单效循环泵,开启冷凝器循环水、盐水阀门,进行蒸发浓缩,控制单效蒸发器的温度65℃、真空度在-0.090KPa;
(4)单效蒸发器顶部出来的轻相(环乙烷)经冷凝后进入环乙烷储槽(采出量以1300L/h),随后进入萃取岗位;
(5)单效蒸发器底部重相以1100 L/h采出送至浓缩釜进行再次浓缩,控制浓缩釜的温度为65℃、真空度在-0.065KPa;
(6)浓缩1h后取样测锡酯水分,低于3%则送至浓缩后锡酯储槽,随后送至酯化岗位套用;否则继续浓缩0.5h再取样,直到合格。
Claims (2)
1.一种三氯蔗糖锡酯连续浓缩方法,其特征在于包括如下步骤:
(1)检查打料泵、真空泵、单效蒸发器、冷凝器、循环水等设备是否完好;
(2)开启环己烷相打料泵,将环己烷相储槽的环乙烷相以2500~3000L/h打入单效蒸发器内;
(3)缓慢开启单效加热器热水阀门调节温度,开启真空泵,开启单效蒸发器循环泵,开启冷凝器循环水、盐水阀门,进行蒸发浓缩,控制单效蒸发器的温度为60~70℃、真空度在-0.088~-0.095KPa;
(4)单效蒸发器顶部出来的轻相经冷凝后进入环乙烷储槽,随后进入萃取岗位;
(5)单效蒸发器底部重相以1000~1200 L/h采出送至浓缩釜进行再次浓缩,控制浓缩釜的温度为60~70℃、真空度在-0.060~-0.065KPa;
(6)浓缩1-1.5h后取样测锡酯水分,低于3%则送至浓缩后锡酯储槽,随后送至酯化岗位套用;否则继续浓缩0.5h再取样,直到合格。
2.根据权利要求1所述一种三氯蔗糖锡酯连续浓缩方法,其特征在于:所述步骤步骤(4)单效蒸发器顶部轻相的采出量为1000~1500L/h。
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US7291250B1 (en) * | 1999-10-20 | 2007-11-06 | Bionorica Ag | Vacuum distillation system and use thereof for concentrating organic-aqueous solvent mixtures |
CN106349300A (zh) * | 2016-08-30 | 2017-01-25 | 安徽金禾实业股份有限公司 | 三氯蔗糖酯化单溶剂反应方法 |
CN107987114A (zh) * | 2017-12-11 | 2018-05-04 | 徐松波 | 一种反应精馏制备锡-糖中间体的装置及方法 |
CN109575069A (zh) * | 2018-12-10 | 2019-04-05 | 安徽金禾实业股份有限公司 | 一种三氯蔗糖生产中催化剂的回收方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7291250B1 (en) * | 1999-10-20 | 2007-11-06 | Bionorica Ag | Vacuum distillation system and use thereof for concentrating organic-aqueous solvent mixtures |
CN106349300A (zh) * | 2016-08-30 | 2017-01-25 | 安徽金禾实业股份有限公司 | 三氯蔗糖酯化单溶剂反应方法 |
CN107987114A (zh) * | 2017-12-11 | 2018-05-04 | 徐松波 | 一种反应精馏制备锡-糖中间体的装置及方法 |
CN109575069A (zh) * | 2018-12-10 | 2019-04-05 | 安徽金禾实业股份有限公司 | 一种三氯蔗糖生产中催化剂的回收方法 |
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